tree: https://github.com/dlech/linux bone-counter head: f8f0ad10f30b5c1bea1a22f5de5dc9f2c6b7db1a commit: fe7af503e7b7739f178c52e3c0b89ba416c6a493 [9/12] fixup! counter: Internalize sysfs interface code config: arm-randconfig-r012-20201014 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project e7fe3c6dfede8d5781bd000741c3dea7088307a4) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/dlech/linux/commit/fe7af503e7b7739f178c52e3c0b89ba416c... git remote add dlech-linux https://github.com/dlech/linux git fetch --no-tags dlech-linux bone-counter git checkout fe7af503e7b7739f178c52e3c0b89ba416c6a493 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static const u8 ti_qep_t2c_functions_map[] = { ^ 1 warning generated. vim +/ti_qep_t2c_functions_map +115 drivers/counter/ti-eqep.c f213729f679619e David Lechner 2019-09-01 114 5251e7147d627fb William Breathitt Gray 2020-09-26 @115 static const u8 ti_qep_t2c_functions_map[] = { 5251e7147d627fb William Breathitt Gray 2020-09-26 116 }; 5251e7147d627fb William Breathitt Gray 2020-09-26 117 :::::: The code at line 115 was first introduced by commit :::::: 5251e7147d627fbe13308dc390347dc16efeb85b counter: Internalize sysfs interface code :::::: TO: William Breathitt Gray <vilhelm.gray(a)gmail.com&gt; :::::: CC: David Lechner <david(a)lechnology.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org