[PATCH] Fix "value computed is not used" compile warnings with gcc-4.1

[powerpc.git] / include / asm-i386 / system.h

diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index 36a92ed..399145a 100644 (file)
--- 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()