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authorHirokazu Takata <takata@linux-m32r.org>2006-09-27 01:50:24 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-27 08:26:15 -0700
commita27f3113322edff36743014cc9e752a21ffc0324 (patch)
treea9e15e79b9a9de559a5f60a316fc1599076dea53
parentf269fdd1829acc5e53bf57b145003e5733133f2b (diff)
[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 <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/asm-m32r/system.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h
index 9e618afec6e..4ce0619f698 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 */