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-rw-r--r--include/asm-i386/system.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index 36a92ed6a9d..399145a247f 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -507,7 +507,7 @@ struct alt_instr {
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_read_barrier_depends() read_barrier_depends()
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
#else
#define smp_mb() barrier()
#define smp_rmb() barrier()