commit ace6128d603d3f15238baba104d0b37ccf0b6c07
author Vincent Stehlé <vincent.stehle@laposte.net> Tue Apr 30 15:26:45 2013 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Tue Apr 30 17:04:00 2013 -0700
tree 883f0e51d1576d915fde820eae7a21be95a232fb
parent 677a0b5ac16337277139798ec43fc32ebaae1347

memory hotplug: fix warnings

Fix the following compilation warnings:

  mm/slab.c: In function `kmem_cache_init_late':
  mm/slab.c:1778:2: warning: statement with no effect [-Wunused-value]

  mm/page_cgroup.c: In function `page_cgroup_init':
  mm/page_cgroup.c:305:2: warning: statement with no effect [-Wunused-value]

Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/memory.h

diff --git a/include/linux/memory.h b/include/linux/memory.h
index 73817af..85c31a8 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -137,7 +137,7 @@
 #define register_hotmemory_notifier(nb)		register_memory_notifier(nb)
 #define unregister_hotmemory_notifier(nb) 	unregister_memory_notifier(nb)
 #else
-#define hotplug_memory_notifier(fn, pri)	(0)
+#define hotplug_memory_notifier(fn, pri)	({ 0; })
 /* These aren't inline functions due to a GCC bug. */
 #define register_hotmemory_notifier(nb)    ({ (void)(nb); 0; })
 #define unregister_hotmemory_notifier(nb)  ({ (void)(nb); })