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[PATCH] m32r: Fix "value computed not used" warnings

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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 <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hirokazu Takata 2006-09-27 01:50:24 -07:00 committed by Linus Torvalds
parent f269fdd182
commit a27f311332
1 changed files with 2 additions and 2 deletions
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4
include/asm-m32r/system.h
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@ -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 */