From 34bd3e6b9831d7ba45b45b2448a7046843068acf Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Wed, 9 Jul 2014 12:48:20 +0100 Subject: [PATCH] MIPS: Fix potential build failures using cpu_vpe_id on non-MT When used in a non-MT kernel, the cpu_vpe_id macro never made use of its cpuinfo argument. It doesn't actually need to since it is returning a constant 0. However not using the argument can lead to build failures if the compiler then notices that a variable used as part of the argument is unused. Prevent that problem by "using" the argument as far as the compiler is concerned, whilst still returning 0 as before. Signed-off-by: Paul Burton Reviewed-by: Markos Chandras Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7280/ Signed-off-by: Ralf Baechle --- arch/mips/include/asm/cpu-info.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index 47d5967ce7ef..a28e3de473d2 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -115,7 +115,7 @@ struct proc_cpuinfo_notifier_args { #ifdef CONFIG_MIPS_MT_SMP # define cpu_vpe_id(cpuinfo) ((cpuinfo)->vpe_id) #else -# define cpu_vpe_id(cpuinfo) 0 +# define cpu_vpe_id(cpuinfo) ({ (void)cpuinfo; 0; }) #endif #endif /* __ASM_CPU_INFO_H */ -- 2.20.1