From 911b0ad25d167fede6aadc05065b414ec7ab5086 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 4 Feb 2006 23:28:05 -0800 Subject: [PATCH] [PATCH] Fix "value computed is not used" compile warnings with gcc-4.1 Fix gcc4.1 compile warnings "value computed is not used" with set_current_state() and set_task_state() on i386/SMP and x86-64. Signed-off-by: Takashi Iwai Cc: Nick Piggin Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/system.h | 2 +- include/asm-x86_64/system.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h index 36a92ed6a9d0..399145a247f2 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() diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h index a73f0c789d8b..b7f66034ae7a 100644 --- a/include/asm-x86_64/system.h +++ b/include/asm-x86_64/system.h @@ -327,7 +327,7 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, #define wmb() asm volatile("" ::: "memory") #endif #define read_barrier_depends() do {} while(0) -#define set_mb(var, value) do { xchg(&var, value); } while (0) +#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) #define set_wmb(var, value) do { var = value; wmb(); } while (0) #define warn_if_not_ulong(x) do { unsigned long foo; (void) (&(x) == &foo); } while (0) -- GitLab