Merge branch 'akpm' (patches from Andrew)

Merge more updates from Andrew Morton:

 - some of the rest of MM

 - various misc things

 - dynamic-debug updates

 - checkpatch

 - some epoll speedups

 - autofs

 - rapidio

 - lib/, lib/lzo/ updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (83 commits)
  samples/mic/mpssd/mpssd.h: remove duplicate header
  kernel/fork.c: remove duplicated include
  include/linux/relay.h: fix percpu annotation in struct rchan
  arch/nios2/mm/fault.c: remove duplicate include
  unicore32: stop printing the virtual memory layout
  MAINTAINERS: fix GTA02 entry and mark as orphan
  mm: create the new vm_fault_t type
  arm, s390, unicore32: remove oneliner wrappers for memblock_alloc()
  arch: simplify several early memory allocations
  openrisc: simplify pte_alloc_one_kernel()
  sh: prefer memblock APIs returning virtual address
  microblaze: prefer memblock API returning virtual address
  powerpc: prefer memblock APIs returning virtual address
  lib/lzo: separate lzo-rle from lzo
  lib/lzo: implement run-length encoding
  lib/lzo: fast 8-byte copy on arm64
  lib/lzo: 64-bit CTZ on arm64
  lib/lzo: tidy-up ifdefs
  ipc/sem.c: replace kvmalloc/memset with kvzalloc and use struct_size
  ipc: annotate implicit fall through
  ...

1 files changed, 57 insertions, 45 deletions

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index b3419da1a776..c2be029b9b53 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -47,10 +47,10 @@ struct _ddebug {
 } __attribute__((aligned(8)));
 
 
-int ddebug_add_module(struct _ddebug *tab, unsigned int n,
-				const char *modname);
 
 #if defined(CONFIG_DYNAMIC_DEBUG)
+int ddebug_add_module(struct _ddebug *tab, unsigned int n,
+				const char *modname);
 extern int ddebug_remove_module(const char *mod_name);
 extern __printf(2, 3)
 void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
@@ -71,7 +71,7 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor,
 			  const struct net_device *dev,
 			  const char *fmt, ...);
 
-#define DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, key, init)	\
+#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt)		\
 	static struct _ddebug  __aligned(8)			\
 	__attribute__((section("__verbose"))) name = {		\
 		.modname = KBUILD_MODNAME,			\
@@ -80,35 +80,27 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor,
 		.format = (fmt),				\
 		.lineno = __LINE__,				\
 		.flags = _DPRINTK_FLAGS_DEFAULT,		\
-		dd_key_init(key, init)				\
+		_DPRINTK_KEY_INIT				\
 	}
 
 #ifdef CONFIG_JUMP_LABEL
 
-#define dd_key_init(key, init) key = (init)
-
 #ifdef DEBUG
-#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
-	DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, .key.dd_key_true, \
-					  (STATIC_KEY_TRUE_INIT))
+
+#define _DPRINTK_KEY_INIT .key.dd_key_true = (STATIC_KEY_TRUE_INIT)
 
 #define DYNAMIC_DEBUG_BRANCH(descriptor) \
 	static_branch_likely(&descriptor.key.dd_key_true)
 #else
-#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
-	DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, .key.dd_key_false, \
-					  (STATIC_KEY_FALSE_INIT))
+#define _DPRINTK_KEY_INIT .key.dd_key_false = (STATIC_KEY_FALSE_INIT)
 
 #define DYNAMIC_DEBUG_BRANCH(descriptor) \
 	static_branch_unlikely(&descriptor.key.dd_key_false)
 #endif
 
-#else
+#else /* !HAVE_JUMP_LABEL */
 
-#define dd_key_init(key, init)
-
-#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
-	DEFINE_DYNAMIC_DEBUG_METADATA_KEY(name, fmt, 0, 0)
+#define _DPRINTK_KEY_INIT
 
 #ifdef DEBUG
 #define DYNAMIC_DEBUG_BRANCH(descriptor) \
@@ -120,46 +112,66 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor,
 
 #endif
 
-#define dynamic_pr_debug(fmt, ...)				\
-do {								\
-	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);		\
-	if (DYNAMIC_DEBUG_BRANCH(descriptor))			\
-		__dynamic_pr_debug(&descriptor, pr_fmt(fmt),	\
-				   ##__VA_ARGS__);		\
+#define __dynamic_func_call(id, fmt, func, ...) do {	\
+	DEFINE_DYNAMIC_DEBUG_METADATA(id, fmt);		\
+	if (DYNAMIC_DEBUG_BRANCH(id))			\
+		func(&id, ##__VA_ARGS__);		\
 } while (0)
 
-#define dynamic_dev_dbg(dev, fmt, ...)				\
-do {								\
-	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);		\
-	if (DYNAMIC_DEBUG_BRANCH(descriptor))			\
-		__dynamic_dev_dbg(&descriptor, dev, fmt,	\
-				  ##__VA_ARGS__);		\
+#define __dynamic_func_call_no_desc(id, fmt, func, ...) do {	\
+	DEFINE_DYNAMIC_DEBUG_METADATA(id, fmt);			\
+	if (DYNAMIC_DEBUG_BRANCH(id))				\
+		func(__VA_ARGS__);				\
 } while (0)
 
+/*
+ * "Factory macro" for generating a call to func, guarded by a
+ * DYNAMIC_DEBUG_BRANCH. The dynamic debug decriptor will be
+ * initialized using the fmt argument. The function will be called with
+ * the address of the descriptor as first argument, followed by all
+ * the varargs. Note that fmt is repeated in invocations of this
+ * macro.
+ */
+#define _dynamic_func_call(fmt, func, ...)				\
+	__dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
+/*
+ * A variant that does the same, except that the descriptor is not
+ * passed as the first argument to the function; it is only called
+ * with precisely the macro's varargs.
+ */
+#define _dynamic_func_call_no_desc(fmt, func, ...)	\
+	__dynamic_func_call_no_desc(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
+
+#define dynamic_pr_debug(fmt, ...)				\
+	_dynamic_func_call(fmt,	__dynamic_pr_debug,		\
+			   pr_fmt(fmt), ##__VA_ARGS__)
+
+#define dynamic_dev_dbg(dev, fmt, ...)				\
+	_dynamic_func_call(fmt,__dynamic_dev_dbg, 		\
+			   dev, fmt, ##__VA_ARGS__)
+
 #define dynamic_netdev_dbg(dev, fmt, ...)			\
-do {								\
-	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);		\
-	if (DYNAMIC_DEBUG_BRANCH(descriptor))			\
-		__dynamic_netdev_dbg(&descriptor, dev, fmt,	\
-				     ##__VA_ARGS__);		\
-} while (0)
+	_dynamic_func_call(fmt, __dynamic_netdev_dbg,		\
+			   dev, fmt, ##__VA_ARGS__)
 
-#define dynamic_hex_dump(prefix_str, prefix_type, rowsize,	\
-			 groupsize, buf, len, ascii)		\
-do {								\
-	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor,		\
-		__builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
-	if (DYNAMIC_DEBUG_BRANCH(descriptor))			\
-		print_hex_dump(KERN_DEBUG, prefix_str,		\
-			       prefix_type, rowsize, groupsize,	\
-			       buf, len, ascii);		\
-} while (0)
+#define dynamic_hex_dump(prefix_str, prefix_type, rowsize,		\
+			 groupsize, buf, len, ascii)			\
+	_dynamic_func_call_no_desc(__builtin_constant_p(prefix_str) ? prefix_str : "hexdump", \
+				   print_hex_dump,			\
+				   KERN_DEBUG, prefix_str, prefix_type,	\
+				   rowsize, groupsize, buf, len, ascii)
 
 #else
 
 #include <linux/string.h>
 #include <linux/errno.h>
 
+static inline int ddebug_add_module(struct _ddebug *tab, unsigned int n,
+				    const char *modname)
+{
+	return 0;
+}
+
 static inline int ddebug_remove_module(const char *mod)
 {
 	return 0;