diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-05-27 13:22:29 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-27 15:28:30 +0300 |
| commit | 83242c515881cc8642d726c3e648e41bf6c24551 (patch) | |
| tree | a5b0ddcca8d532a7cc7faf1df6bb5ff0b1690dad | |
| parent | d65fcd608f6a9ac0316bd3efc75956ca329b6571 (diff) | |
| download | linux-83242c515881cc8642d726c3e648e41bf6c24551.tar.xz | |
x86/fpu: Make WARN_ON_FPU() more robust in the !CONFIG_X86_DEBUG_FPU case
Make sure the WARN_ON_FPU() macro consumes the macro argument,
to avoid 'unused variable' build warnings if the only use of
a variable is in debugging code.
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/fpu/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index 9f3863872007..3c3550c3a4a3 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -49,7 +49,7 @@ extern void fpu__resume_cpu(void); #ifdef CONFIG_X86_DEBUG_FPU # define WARN_ON_FPU(x) WARN_ON_ONCE(x) #else -# define WARN_ON_FPU(x) ({ 0; }) +# define WARN_ON_FPU(x) ({ (void)(x); 0; }) #endif /* |