tree: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-5.10 head: 23ce1e5c27396e39efabb58714142e8f10ce1f0c commit: 5bbbfc7f7f0a44b7a85ab3872dd2ccce7019f7b1 [3/21] regulator: rt4801: Add support for RT4801 Display Bias regulator driver config: x86_64-randconfig-r032-20200824 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project b587ca93be114d07ec3bf654add97d7872325281) 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 checkout 5bbbfc7f7f0a44b7a85ab3872dd2ccce7019f7b1 # 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 warnings (new ones prefixed by >>): static const struct of_device_id rt4801_of_id[] = { ^ 1 warning generated. # https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git/com... git remote add regulator https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git git fetch --no-tags regulator for-5.10 git checkout 5bbbfc7f7f0a44b7a85ab3872dd2ccce7019f7b1 vim +/rt4801_of_id +206 drivers/regulator/rt4801-regulator.c 205 207 { .compatible = "richtek,rt4801", }, 208 { }, 209 }; 210 MODULE_DEVICE_TABLE(of, rt4801_of_id); 211 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org