On Wed, Nov 25, 2020 at 4:11 AM kernel test robot <lkp@xxxxxxxxx> wrote: > > Hi Heiko, > > FYI, the error/warning still remains. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: d9137320ac06f526fe3f9a3fdf07a3b14201068a > commit: 80f06306240e0ad1c75116111be11950474dfda7 [6721/7715] s390/vdso: reimplement getcpu vdso syscall > config: s390-randconfig-r015-20201124 (attached as .config) > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project df9ae5992889560a8f3c6760b54d5051b47c7bf5) > 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 s390 cross compiling tool for clang build > # apt-get install binutils-s390x-linux-gnu > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=80f06306240e0ad1c75116111be11950474dfda7 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 80f06306240e0ad1c75116111be11950474dfda7 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > >> arch/s390/kernel/vdso64/getcpu.c:8:5: warning: no previous prototype for function '__s390_vdso_getcpu' [-Wmissing-prototypes] > int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) > ^ > arch/s390/kernel/vdso64/getcpu.c:8:1: note: declare 'static' if the function is not intended to be used outside of this translation unit > int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) > ^ > static > 1 warning generated. I think a declaration would be more appropriate. > > vim +/__s390_vdso_getcpu +8 arch/s390/kernel/vdso64/getcpu.c > > 7 > > 8 int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
