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 <paul.burton@xxxxxxxxxx>
Reviewed-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
---
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 47d5967..a28e3de 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 */
--
2.0.1
