vgetcpu.c W=1 error (no previous prototype)

[Bagas Sanjaya]

Hi,

Building x86_64_defconfig with W=1 on GCC 10.2.0 (Debian 11), I see missing
prototypes error:

  CC      arch/x86/entry/vdso/vgetcpu.o
arch/x86/entry/vdso/vgetcpu.c:13:1: error: no previous prototype for ‘__vdso_getcpu’ [-Werror=missing-prototypes]
   13 | __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
      | ^~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[4]: *** [scripts/Makefile.build:252: arch/x86/entry/vdso/vgetcpu.o] Error 1

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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