On Fri, Dec 25, 2020 at 06:55:07PM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> dev.2020.12.23a
> head: 7cc07f4867eb9618d4f7c35ddfbd746131b52f51
> commit: 6a70298420b2bd6d3e3dc86d81b993f618df8569 [133/149] clocksource: Check
> per-CPU clock synchronization when marked unstable
> config: x86_64-randconfig-r013-20201223 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
> cee1e7d14f4628d6174b33640d502bff3b54ae45)
> reproduce (this is a W=1 build):
> wget
> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
> ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install x86_64 cross compiling tool for clang build
> # apt-get install binutils-x86-64-linux-gnu
> #
> https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=6a70298420b2bd6d3e3dc86d81b993f618df8569
> git remote add rcu
> https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> git fetch --no-tags rcu dev.2020.12.23a
> git checkout 6a70298420b2bd6d3e3dc86d81b993f618df8569
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross
> ARCH=x86_64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <l...@intel.com>
Good catch! I will fold the fix into the original with attribution,
thank you!
Thanx,Paul
> All warnings (new ones prefixed by >>):
>
> >> kernel/time/clocksource.c:220:6: warning: no previous prototype for
> >> function 'clocksource_verify_one_cpu' [-Wmissing-prototypes]
> void clocksource_verify_one_cpu(void *csin)
> ^
> kernel/time/clocksource.c:220:1: note: declare 'static' if the function is
> not intended to be used outside of this translation unit
> void clocksource_verify_one_cpu(void *csin)
> ^
> static
> 1 warning generated.
>
>
> vim +/clocksource_verify_one_cpu +220 kernel/time/clocksource.c
>
> 219
> > 220 void clocksource_verify_one_cpu(void *csin)
> 221 {
> 222 struct clocksource *cs = (struct clocksource *)csin;
> 223
> 224 __this_cpu_write(csnow_mid, cs->read(cs));
> 225 }
> 226
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
