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authorTakashi Iwai <tiwai@suse.de>2006-02-04 23:28:05 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-05 11:06:54 -0800
commit911b0ad25d167fede6aadc05065b414ec7ab5086 (patch)
tree8e85fd8a70a75aa8b2d18b89b2ebd8fc843c361c
parentb53e8f68e07fb8f3ba9ab1812c9c186c09a50c16 (diff)
[PATCH] Fix "value computed is not used" compile warnings with gcc-4.1
Fix gcc4.1 compile warnings "value computed is not used" with set_current_state() and set_task_state() on i386/SMP and x86-64. Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/asm-i386/system.h2
-rw-r--r--include/asm-x86_64/system.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index 36a92ed6a9d..399145a247f 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -507,7 +507,7 @@ struct alt_instr {
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_read_barrier_depends() read_barrier_depends()
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
#else
#define smp_mb() barrier()
#define smp_rmb() barrier()
diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h
index a73f0c789d8..b7f66034ae7 100644
--- a/include/asm-x86_64/system.h
+++ b/include/asm-x86_64/system.h
@@ -327,7 +327,7 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
#define wmb() asm volatile("" ::: "memory")
#endif
#define read_barrier_depends() do {} while(0)
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
#define set_wmb(var, value) do { var = value; wmb(); } while (0)
#define warn_if_not_ulong(x) do { unsigned long foo; (void) (&(x) == &foo); } while (0)