tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b4bb878f3eb3e604ebfe83bbc17eb7af8d99cbf4 commit: 38a4066f593c594c3b6cca14f6df4a80e0f8f320 [2007/4407] net: ipa: support COMPILE_TEST config: x86_64-randconfig-a003-20210120 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 22b68440e1647e16b5ee24b924986207173c02d1) 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/next/linux-next.git/commi... 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 38a4066f593c594c3b6cca14f6df4a80e0f8f320 # 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 <lkp(a)intel.com&gt; Note: the linux-next/master HEAD b4bb878f3eb3e604ebfe83bbc17eb7af8d99cbf4 builds fine. It may have been fixed somewhere. All errors (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