TO: "Pierre-Louis Bossart" <pierre-louis.bossart(a)linux.intel.com&gt; CC: Vinod Koul <vkoul(a)kernel.org&gt; CC: Bard Liao <yung-chuan.liao(a)linux.intel.com&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: e8f3274774b45b5f4e9e3d5cad7ff9f43ae3add5 commit: 7ceaa40b930e462ba0477ca6af34ec04d08181dc [9919/11634] soundwire: bus_type: add sdw_master_device support config: x86_64-randconfig-a015-20200521 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 3393cc4cebf9969db94dc424b7a2b6195589c33b) reproduce: 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 git checkout 7ceaa40b930e462ba0477ca6af34ec04d08181dc # 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: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org