Re: [PATCH 4/5] arm64: vdso: Add getcpu() implementation

On Sat, Jun 06, 2020 at 12:11:08AM +0800, kernel test robot wrote:

quoted

quoted

arch/arm64/kernel/vdso/vgetcpu.c:33:5: warning: no previous prototype for '__kernel_getcpu' [-Wmissing-prototypes]

33 | int __kernel_getcpu(unsigned int *cpu, unsigned int *node,
|     ^~~~~~~~~~~~~~~
--

quoted

quoted

arch/arm64/kernel/vdso/vgetcpu.c:33:5: warning: no previous prototype for '__kernel_getcpu' [-Wmissing-prototypes]

33 | int __kernel_getcpu(unsigned int *cpu, unsigned int *node,
|     ^~~~~~~~~~~~~~~
arch/arm64/kernel/vdso/vgettimeofday.c:9:5: warning: no previous prototype for '__kernel_clock_gettime' [-Wmissing-prototypes]
9 | int __kernel_clock_gettime(clockid_t clock,
|     ^~~~~~~~~~~~~~~~~~~~~~

I'm not seeing this here and what we're doing is in line with the
existing idiom as can be seen from the __kernel_clock_gettime() code
flagging the same thing.  Possibly an old/outdated toolchain?