From: Hirokazu Takata Date: Wed, 27 Sep 2006 08:50:24 +0000 (-0700) Subject: [PATCH] m32r: Fix "value computed not used" warnings X-Git-Tag: upstream/snapshot3+hdmi~38008 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a27f3113322edff36743014cc9e752a21ffc0324;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git [PATCH] m32r: Fix "value computed not used" warnings Fix to remove annoying gcc-4.1 warnings "value computed not used" for m32r; Modify set_mb to cast to void for SMP. Signed-off-by: Hirokazu Takata Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h index 9e618af..4ce0619 100644 --- a/include/asm-m32r/system.h +++ b/include/asm-m32r/system.h @@ -328,15 +328,15 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) #define smp_rmb() rmb() #define smp_wmb() wmb() #define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while (0) +#define set_mb(var, value) do { var = value; barrier(); } while (0) #endif -#define set_mb(var, value) do { xchg(&var, value); } while (0) - #define arch_align_stack(x) (x) #endif /* _ASM_M32R_SYSTEM_H */