* [PATCH] Fix "value computed is not used" compile warnings with gcc-4.1
@ 2006-01-13 20:16 Takashi Iwai
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From: Takashi Iwai @ 2006-01-13 20:16 UTC (permalink / raw)
To: linux-kernel
[PATCH] Fix "value computed is not used" compile warnings with gcc-4.1
The patch fixes gcc4.1 compile warnings "value computed is not used"
with set_current_state() and set_task_state() on i386/SMP.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
--- 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()
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2006-01-13 20:16 [PATCH] Fix "value computed is not used" compile warnings with gcc-4.1 Takashi Iwai
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