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MIPS: Fix potential build failures using cpu_vpe_id on non-MT

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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@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7280/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2014-07-09 12:48:20 +01:00 committed by Ralf Baechle
parent a8b846775e
commit 34bd3e6b98
1 changed files with 1 additions and 1 deletions
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2
arch/mips/include/asm/cpu-info.h
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@ -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 */