[PATCH] memory hotplug: fix warnings

From: Vincent StehlÃ
Date: Tue Apr 30 2013 - 04:39:46 EST


Fix the following compilation warnings:

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

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

Signed-off-by: Vincent Stehlà <vincent.stehle@xxxxxxxxxxx>
---
include/linux/memory.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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 @@ enum mem_add_context { BOOT, HOTPLUG };
#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); })
--
1.7.10.4

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