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Diffstat (limited to 'include/asm-m68knommu/system.h')
-rw-r--r--include/asm-m68knommu/system.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-m68knommu/system.h b/include/asm-m68knommu/system.h
index 039ab3f81732..64c64432bbb8 100644
--- a/include/asm-m68knommu/system.h
+++ b/include/asm-m68knommu/system.h
@@ -104,7 +104,7 @@ asmlinkage void resume(void);
#define mb() asm volatile ("" : : :"memory")
#define rmb() asm volatile ("" : : :"memory")
#define wmb() asm volatile ("" : : :"memory")
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value) ({ (var) = (value); wmb(); })
#ifdef CONFIG_SMP
#define smp_mb() mb()