Commit a27f3113 authored by Hirokazu Takata's avatar Hirokazu Takata Committed by Linus Torvalds
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[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: default avatarHirokazu Takata <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent f269fdd1
......@@ -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)
#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)
#define set_mb(var, value) do { xchg(&var, value); } while (0)
#define arch_align_stack(x) (x)
#endif /* _ASM_M32R_SYSTEM_H */
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