Hi, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/min-li-xe-renesas-com/misc-Add-R... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git e4b62cf7559f2ef9a022de235e5a09a8d7ded520 config: powerpc-randconfig-r022-20210209 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/0day-ci/linux/commit/2a68b783a1608476c14439dd4ad925347... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review min-li-xe-renesas-com/misc-Add-Renesas-Synchronization-Management-Unit-SMU-support/20210211-113223 git checkout 2a68b783a1608476c14439dd4ad92534715fc22d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 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 >>): make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/rsmu.h] Error 1 make[2]: Target '__headers' not remade because of errors. make[1]: *** [Makefile:1290: headers] Error 2 make[1]: Target 'headers_install' not remade because of errors. make: *** [Makefile:185: __sub-make] Error 2 make: Target 'headers_install' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org