From ecb4433550f0620f3d1471ae7099037ede30a91e Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Fri, 12 Aug 2011 14:00:59 +0200 Subject: mac80211: fix suspend/resume races with unregister hw Do not call ->suspend, ->resume methods after we unregister wiphy. Also delete sta_clanup timer after we finish wiphy unregister to avoid this: WARNING: at lib/debugobjects.c:262 debug_print_object+0x85/0xa0() Hardware name: 6369CTO ODEBUG: free active (active state 0) object type: timer_list hint: sta_info_cleanup+0x0/0x180 [mac80211] Modules linked in: aes_i586 aes_generic fuse bridge stp llc autofs4 sunrpc cpufreq_ondemand acpi_cpufreq mperf ext2 dm_mod uinput thinkpad_acpi hwmon sg arc4 rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 cfg80211 i2c_i801 iTCO_wdt iTCO_vendor_support e1000e ext4 mbcache jbd2 sd_mod crc_t10dif sr_mod cdrom yenta_socket ahci libahci pata_acpi ata_generic ata_piix i915 drm_kms_helper drm i2c_algo_bit video [last unloaded: microcode] Pid: 5663, comm: pm-hibernate Not tainted 3.1.0-rc1-wl+ #19 Call Trace: [] warn_slowpath_common+0x6d/0xa0 [] ? debug_print_object+0x85/0xa0 [] ? debug_print_object+0x85/0xa0 [] warn_slowpath_fmt+0x2e/0x30 [] debug_print_object+0x85/0xa0 [] ? sta_info_alloc+0x1a0/0x1a0 [mac80211] [] debug_check_no_obj_freed+0xe2/0x180 [] kfree+0x8b/0x150 [] cfg80211_dev_free+0x7e/0x90 [cfg80211] [] wiphy_dev_release+0xd/0x10 [cfg80211] [] device_release+0x19/0x80 [] kobject_release+0x7a/0x1c0 [] ? rtnl_unlock+0x8/0x10 [] ? wiphy_resume+0x6b/0x80 [cfg80211] [] ? kobject_del+0x30/0x30 [] kref_put+0x2d/0x60 [] kobject_put+0x1d/0x50 [] ? mutex_lock+0x14/0x40 [] put_device+0xf/0x20 [] dpm_resume+0xca/0x160 [] hibernation_snapshot+0xcd/0x260 [] ? freeze_processes+0x3f/0x90 [] hibernate+0xcb/0x1e0 [] ? pm_async_store+0x40/0x40 [] state_store+0xa0/0xb0 [] ? pm_async_store+0x40/0x40 [] kobj_attr_store+0x20/0x30 [] sysfs_write_file+0x94/0xf0 [] vfs_write+0x9a/0x160 [] ? sysfs_open_file+0x200/0x200 [] sys_write+0x3d/0x70 [] sysenter_do_call+0x12/0x28 Cc: stable@kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- include/net/cfg80211.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index d17f47fc9e31..408ae4882d22 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1865,6 +1865,9 @@ struct wiphy { * you need use set_wiphy_dev() (see below) */ struct device dev; + /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ + bool registered; + /* dir in debugfs: ieee80211/ */ struct dentry *debugfsdir; -- cgit From a8d757ef076f0f95f13a918808824058de25b3eb Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Thu, 25 Aug 2011 15:58:03 +0200 Subject: perf events: Fix slow and broken cgroup context switch code The current cgroup context switch code was incorrect leading to bogus counts. Furthermore, as soon as there was an active cgroup event on a CPU, the context switch cost on that CPU would increase by a significant amount as demonstrated by a simple ping/pong example: $ ./pong Both processes pinned to CPU1, running for 10s 10684.51 ctxsw/s Now start a cgroup perf stat: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 100 $ ./pong Both processes pinned to CPU1, running for 10s 6674.61 ctxsw/s That's a 37% penalty. Note that pong is not even in the monitored cgroup. The results shown by perf stat are bogus: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 100 Performance counter stats for 'sleep 100': CPU1 cycles test CPU1 16,984,189,138 cycles # 0.000 GHz The second 'cycles' event should report a count @ CPU clock (here 2.4GHz) as it is counting across all cgroups. The patch below fixes the bogus accounting and bypasses any cgroup switches in case the outgoing and incoming tasks are in the same cgroup. With this patch the same test now yields: $ ./pong Both processes pinned to CPU1, running for 10s 10775.30 ctxsw/s Start perf stat with cgroup: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 10 Run pong outside the cgroup: $ /pong Both processes pinned to CPU1, running for 10s 10687.80 ctxsw/s The penalty is now less than 2%. And the results for perf stat are correct: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 10 Performance counter stats for 'sleep 10': CPU1 cycles test # 0.000 GHz CPU1 23,933,981,448 cycles # 0.000 GHz Now perf stat reports the correct counts for for the non cgroup event. If we run pong inside the cgroup, then we also get the correct counts: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 10 Performance counter stats for 'sleep 10': CPU1 22,297,726,205 cycles test # 0.000 GHz CPU1 23,933,981,448 cycles # 0.000 GHz 10.001457237 seconds time elapsed Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20110825135803.GA4697@quad Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 24 +++++++++++------- kernel/events/core.c | 63 ++++++++++++++++++++++++++++++++++++++-------- kernel/sched.c | 2 +- 3 files changed, 69 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 245bafdafd5e..c816075c01ce 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -944,8 +944,10 @@ extern void perf_pmu_unregister(struct pmu *pmu); extern int perf_num_counters(void); extern const char *perf_pmu_name(void); -extern void __perf_event_task_sched_in(struct task_struct *task); -extern void __perf_event_task_sched_out(struct task_struct *task, struct task_struct *next); +extern void __perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task); +extern void __perf_event_task_sched_out(struct task_struct *prev, + struct task_struct *next); extern int perf_event_init_task(struct task_struct *child); extern void perf_event_exit_task(struct task_struct *child); extern void perf_event_free_task(struct task_struct *task); @@ -1059,17 +1061,20 @@ perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) extern struct jump_label_key perf_sched_events; -static inline void perf_event_task_sched_in(struct task_struct *task) +static inline void perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task) { if (static_branch(&perf_sched_events)) - __perf_event_task_sched_in(task); + __perf_event_task_sched_in(prev, task); } -static inline void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next) +static inline void perf_event_task_sched_out(struct task_struct *prev, + struct task_struct *next) { perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, NULL, 0); - __perf_event_task_sched_out(task, next); + if (static_branch(&perf_sched_events)) + __perf_event_task_sched_out(prev, next); } extern void perf_event_mmap(struct vm_area_struct *vma); @@ -1139,10 +1144,11 @@ extern void perf_event_disable(struct perf_event *event); extern void perf_event_task_tick(void); #else static inline void -perf_event_task_sched_in(struct task_struct *task) { } +perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task) { } static inline void -perf_event_task_sched_out(struct task_struct *task, - struct task_struct *next) { } +perf_event_task_sched_out(struct task_struct *prev, + struct task_struct *next) { } static inline int perf_event_init_task(struct task_struct *child) { return 0; } static inline void perf_event_exit_task(struct task_struct *child) { } static inline void perf_event_free_task(struct task_struct *task) { } diff --git a/kernel/events/core.c b/kernel/events/core.c index b8785e26ee1c..45847fbb599a 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -399,14 +399,54 @@ void perf_cgroup_switch(struct task_struct *task, int mode) local_irq_restore(flags); } -static inline void perf_cgroup_sched_out(struct task_struct *task) +static inline void perf_cgroup_sched_out(struct task_struct *task, + struct task_struct *next) { - perf_cgroup_switch(task, PERF_CGROUP_SWOUT); + struct perf_cgroup *cgrp1; + struct perf_cgroup *cgrp2 = NULL; + + /* + * we come here when we know perf_cgroup_events > 0 + */ + cgrp1 = perf_cgroup_from_task(task); + + /* + * next is NULL when called from perf_event_enable_on_exec() + * that will systematically cause a cgroup_switch() + */ + if (next) + cgrp2 = perf_cgroup_from_task(next); + + /* + * only schedule out current cgroup events if we know + * that we are switching to a different cgroup. Otherwise, + * do no touch the cgroup events. + */ + if (cgrp1 != cgrp2) + perf_cgroup_switch(task, PERF_CGROUP_SWOUT); } -static inline void perf_cgroup_sched_in(struct task_struct *task) +static inline void perf_cgroup_sched_in(struct task_struct *prev, + struct task_struct *task) { - perf_cgroup_switch(task, PERF_CGROUP_SWIN); + struct perf_cgroup *cgrp1; + struct perf_cgroup *cgrp2 = NULL; + + /* + * we come here when we know perf_cgroup_events > 0 + */ + cgrp1 = perf_cgroup_from_task(task); + + /* prev can never be NULL */ + cgrp2 = perf_cgroup_from_task(prev); + + /* + * only need to schedule in cgroup events if we are changing + * cgroup during ctxsw. Cgroup events were not scheduled + * out of ctxsw out if that was not the case. + */ + if (cgrp1 != cgrp2) + perf_cgroup_switch(task, PERF_CGROUP_SWIN); } static inline int perf_cgroup_connect(int fd, struct perf_event *event, @@ -518,11 +558,13 @@ static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx) { } -static inline void perf_cgroup_sched_out(struct task_struct *task) +static inline void perf_cgroup_sched_out(struct task_struct *task, + struct task_struct *next) { } -static inline void perf_cgroup_sched_in(struct task_struct *task) +static inline void perf_cgroup_sched_in(struct task_struct *prev, + struct task_struct *task) { } @@ -1988,7 +2030,7 @@ void __perf_event_task_sched_out(struct task_struct *task, * cgroup event are system-wide mode only */ if (atomic_read(&__get_cpu_var(perf_cgroup_events))) - perf_cgroup_sched_out(task); + perf_cgroup_sched_out(task, next); } static void task_ctx_sched_out(struct perf_event_context *ctx) @@ -2153,7 +2195,8 @@ static void perf_event_context_sched_in(struct perf_event_context *ctx, * accessing the event control register. If a NMI hits, then it will * keep the event running. */ -void __perf_event_task_sched_in(struct task_struct *task) +void __perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task) { struct perf_event_context *ctx; int ctxn; @@ -2171,7 +2214,7 @@ void __perf_event_task_sched_in(struct task_struct *task) * cgroup event are system-wide mode only */ if (atomic_read(&__get_cpu_var(perf_cgroup_events))) - perf_cgroup_sched_in(task); + perf_cgroup_sched_in(prev, task); } static u64 perf_calculate_period(struct perf_event *event, u64 nsec, u64 count) @@ -2427,7 +2470,7 @@ static void perf_event_enable_on_exec(struct perf_event_context *ctx) * ctxswin cgroup events which are already scheduled * in. */ - perf_cgroup_sched_out(current); + perf_cgroup_sched_out(current, NULL); raw_spin_lock(&ctx->lock); task_ctx_sched_out(ctx); diff --git a/kernel/sched.c b/kernel/sched.c index ccacdbdecf45..0408cdc6d572 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -3065,7 +3065,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev) #ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW local_irq_disable(); #endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */ - perf_event_task_sched_in(current); + perf_event_task_sched_in(prev, current); #ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW local_irq_enable(); #endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */ -- cgit From f88657ce3f9713a0c62101dffb0e972a979e77b9 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 3 Aug 2011 19:55:32 +0530 Subject: fs/9p: Add OS dependent open flags in 9p protocol Some of the flags are OS/arch dependent we add a 9p protocol value which maps to asm-generic/fcntl.h values in Linux Based on the original patch from Venkateswararao Jujjuri Signed-off-by: Aneesh Kumar K.V --- fs/9p/v9fs_vfs.h | 2 ++ fs/9p/vfs_file.c | 2 +- fs/9p/vfs_inode.c | 16 ++++++++++++++- fs/9p/vfs_inode_dotl.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++- include/net/9p/9p.h | 24 ++++++++++++++++++++++ 5 files changed, 96 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h index 7ac1faec2bde..410ffd6ceb5f 100644 --- a/fs/9p/v9fs_vfs.h +++ b/fs/9p/v9fs_vfs.h @@ -83,4 +83,6 @@ static inline void v9fs_invalidate_inode_attr(struct inode *inode) v9inode->cache_validity |= V9FS_INO_INVALID_ATTR; return; } + +int v9fs_open_to_dotl_flags(int flags); #endif diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 3c173fcc2c5a..c2f107583125 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -65,7 +65,7 @@ int v9fs_file_open(struct inode *inode, struct file *file) v9inode = V9FS_I(inode); v9ses = v9fs_inode2v9ses(inode); if (v9fs_proto_dotl(v9ses)) - omode = file->f_flags; + omode = v9fs_open_to_dotl_flags(file->f_flags); else omode = v9fs_uflags2omode(file->f_flags, v9fs_proto_dotu(v9ses)); diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 3563cace0a2e..9e3ea6ce6951 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -552,6 +552,19 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, return inode; } +/** + * v9fs_at_to_dotl_flags- convert Linux specific AT flags to + * plan 9 AT flag. + * @flags: flags to convert + */ +static int v9fs_at_to_dotl_flags(int flags) +{ + int rflags = 0; + if (flags & AT_REMOVEDIR) + rflags |= P9_DOTL_AT_REMOVEDIR; + return rflags; +} + /** * v9fs_remove - helper function to remove files and directories * @dir: directory inode that is being deleted @@ -579,7 +592,8 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags) return retval; } if (v9fs_proto_dotl(v9ses)) - retval = p9_client_unlinkat(dfid, dentry->d_name.name, flags); + retval = p9_client_unlinkat(dfid, dentry->d_name.name, + v9fs_at_to_dotl_flags(flags)); if (retval == -EOPNOTSUPP) { /* Try the one based on path */ v9fid = v9fs_fid_clone(dentry); diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index a3f2540cc4b2..aded79fcd5cf 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -191,6 +191,58 @@ v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid, return inode; } +struct dotl_openflag_map { + int open_flag; + int dotl_flag; +}; + +static int v9fs_mapped_dotl_flags(int flags) +{ + int i; + int rflags = 0; + struct dotl_openflag_map dotl_oflag_map[] = { + { O_CREAT, P9_DOTL_CREATE }, + { O_EXCL, P9_DOTL_EXCL }, + { O_NOCTTY, P9_DOTL_NOCTTY }, + { O_TRUNC, P9_DOTL_TRUNC }, + { O_APPEND, P9_DOTL_APPEND }, + { O_NONBLOCK, P9_DOTL_NONBLOCK }, + { O_DSYNC, P9_DOTL_DSYNC }, + { FASYNC, P9_DOTL_FASYNC }, + { O_DIRECT, P9_DOTL_DIRECT }, + { O_LARGEFILE, P9_DOTL_LARGEFILE }, + { O_DIRECTORY, P9_DOTL_DIRECTORY }, + { O_NOFOLLOW, P9_DOTL_NOFOLLOW }, + { O_NOATIME, P9_DOTL_NOATIME }, + { O_CLOEXEC, P9_DOTL_CLOEXEC }, + { O_SYNC, P9_DOTL_SYNC}, + }; + for (i = 0; i < ARRAY_SIZE(dotl_oflag_map); i++) { + if (flags & dotl_oflag_map[i].open_flag) + rflags |= dotl_oflag_map[i].dotl_flag; + } + return rflags; +} + +/** + * v9fs_open_to_dotl_flags- convert Linux specific open flags to + * plan 9 open flag. + * @flags: flags to convert + */ +int v9fs_open_to_dotl_flags(int flags) +{ + int rflags = 0; + + /* + * We have same bits for P9_DOTL_READONLY, P9_DOTL_WRONLY + * and P9_DOTL_NOACCESS + */ + rflags |= flags & O_ACCMODE; + rflags |= v9fs_mapped_dotl_flags(flags); + + return rflags; +} + /** * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol. * @dir: directory inode that is being created @@ -259,7 +311,8 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode, "Failed to get acl values in creat %d\n", err); goto error; } - err = p9_client_create_dotl(ofid, name, flags, mode, gid, &qid); + err = p9_client_create_dotl(ofid, name, v9fs_open_to_dotl_flags(flags), + mode, gid, &qid); if (err < 0) { P9_DPRINTK(P9_DEBUG_VFS, "p9_client_open_dotl failed in creat %d\n", diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 342dcf13d039..957ab99897a1 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -288,6 +288,30 @@ enum p9_perm_t { P9_DMSETVTX = 0x00010000, }; +/* 9p2000.L open flags */ +#define P9_DOTL_RDONLY 00000000 +#define P9_DOTL_WRONLY 00000001 +#define P9_DOTL_RDWR 00000002 +#define P9_DOTL_NOACCESS 00000003 +#define P9_DOTL_CREATE 00000100 +#define P9_DOTL_EXCL 00000200 +#define P9_DOTL_NOCTTY 00000400 +#define P9_DOTL_TRUNC 00001000 +#define P9_DOTL_APPEND 00002000 +#define P9_DOTL_NONBLOCK 00004000 +#define P9_DOTL_DSYNC 00010000 +#define P9_DOTL_FASYNC 00020000 +#define P9_DOTL_DIRECT 00040000 +#define P9_DOTL_LARGEFILE 00100000 +#define P9_DOTL_DIRECTORY 00200000 +#define P9_DOTL_NOFOLLOW 00400000 +#define P9_DOTL_NOATIME 01000000 +#define P9_DOTL_CLOEXEC 02000000 +#define P9_DOTL_SYNC 04000000 + +/* 9p2000.L at flags */ +#define P9_DOTL_AT_REMOVEDIR 0x200 + /** * enum p9_qid_t - QID types * @P9_QTDIR: directory -- cgit From 51b8b4fb32271d39fbdd760397406177b2b0fd36 Mon Sep 17 00:00:00 2001 From: Jim Garlick Date: Sun, 21 Aug 2011 00:21:18 +0530 Subject: fs/9p: Use protocol-defined value for lock/getlock 'type' field. Signed-off-by: Jim Garlick Signed-off-by: Aneesh Kumar K.V --- fs/9p/vfs_file.c | 34 +++++++++++++++++++++++++++------- include/net/9p/9p.h | 5 +++++ 2 files changed, 32 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index c2f107583125..62857a810a79 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -169,7 +169,18 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl) /* convert posix lock to p9 tlock args */ memset(&flock, 0, sizeof(flock)); - flock.type = fl->fl_type; + /* map the lock type */ + switch (fl->fl_type) { + case F_RDLCK: + flock.type = P9_LOCK_TYPE_RDLCK; + break; + case F_WRLCK: + flock.type = P9_LOCK_TYPE_WRLCK; + break; + case F_UNLCK: + flock.type = P9_LOCK_TYPE_UNLCK; + break; + } flock.start = fl->fl_start; if (fl->fl_end == OFFSET_MAX) flock.length = 0; @@ -245,7 +256,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl) /* convert posix lock to p9 tgetlock args */ memset(&glock, 0, sizeof(glock)); - glock.type = fl->fl_type; + glock.type = P9_LOCK_TYPE_UNLCK; glock.start = fl->fl_start; if (fl->fl_end == OFFSET_MAX) glock.length = 0; @@ -257,17 +268,26 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl) res = p9_client_getlock_dotl(fid, &glock); if (res < 0) return res; - if (glock.type != F_UNLCK) { - fl->fl_type = glock.type; + /* map 9p lock type to os lock type */ + switch (glock.type) { + case P9_LOCK_TYPE_RDLCK: + fl->fl_type = F_RDLCK; + break; + case P9_LOCK_TYPE_WRLCK: + fl->fl_type = F_WRLCK; + break; + case P9_LOCK_TYPE_UNLCK: + fl->fl_type = F_UNLCK; + break; + } + if (glock.type != P9_LOCK_TYPE_UNLCK) { fl->fl_start = glock.start; if (glock.length == 0) fl->fl_end = OFFSET_MAX; else fl->fl_end = glock.start + glock.length - 1; fl->fl_pid = glock.proc_id; - } else - fl->fl_type = F_UNLCK; - + } return res; } diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 957ab99897a1..a6326ef8ade6 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -312,6 +312,11 @@ enum p9_perm_t { /* 9p2000.L at flags */ #define P9_DOTL_AT_REMOVEDIR 0x200 +/* 9p2000.L lock type */ +#define P9_LOCK_TYPE_RDLCK 0 +#define P9_LOCK_TYPE_WRLCK 1 +#define P9_LOCK_TYPE_UNLCK 2 + /** * enum p9_qid_t - QID types * @P9_QTDIR: directory -- cgit From d2f152878d457a84f3708acee5f682322386a79b Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 8 Sep 2011 10:16:50 -0700 Subject: wireless: fix kernel-doc warning in net/cfg80211.h Fix kernel-doc warning in net/cfg80211.h: Warning(include/net/cfg80211.h:1884): No description found for parameter 'registered' Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- include/net/cfg80211.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 408ae4882d22..401d73bd151f 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1744,6 +1744,8 @@ struct wiphy_wowlan_support { * by default for perm_addr. In this case, the mask should be set to * all-zeroes. In this case it is assumed that the device can handle * the same number of arbitrary MAC addresses. + * @registered: protects ->resume and ->suspend sysfs callbacks against + * unregister hardware * @debugfsdir: debugfs directory used for this wiphy, will be renamed * automatically on wiphy renames * @dev: (virtual) struct device for this wiphy -- cgit From bff747c58cf97bf4fc8b499ee0f419b59d6b226d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 8 Sep 2011 10:16:47 -0700 Subject: regulator: fix kernel-doc warning in consumer.h Fix kernel-doc warning about internal/private data by marking it as "private:" so that kernel-doc will ignore it. Warning(include/linux/regulator/consumer.h:128): No description found for parameter 'ret' Signed-off-by: Randy Dunlap Acked-by: Mark Brown Signed-off-by: Linus Torvalds --- include/linux/regulator/consumer.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 26f6ea4444e3..b47771aa5718 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -123,7 +123,7 @@ struct regulator_bulk_data { const char *supply; struct regulator *consumer; - /* Internal use */ + /* private: Internal use */ int ret; }; -- cgit