Hi Greg, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common android11-5.4 head: ed5c049cade042d2c4f45a98399317fd513e53a7 commit: a35cf7283648f203669736b32dac0f5706e02944 [8964/10049] ANDROID: GKI: Fix up "do not export symbol_get/put()" commit config: x86_64-randconfig-a014-20201215 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project a29ecca7819a6ed4250d3689b12b1f664bb790d7) 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 git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android11-5.4 git checkout a35cf7283648f203669736b32dac0f5706e02944 # 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; All errors (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org