Hi Lad, Thank you for the patch! Yet something to improve: [auto build test ERROR on renesas-devel/next] [also build test ERROR on next-20210722] [cannot apply to mkl-can-next/testing robh/for-next v5.14-rc2] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Lad-Prabhakar/Renesas-RZ-G2L-CAN... base: https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next config: arm64-buildonly-randconfig-r001-20210720 (attached as .config) compiler: aarch64-linux-gcc (GCC) 10.3.0 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 # https://github.com/0day-ci/linux/commit/90a103694ef5a19dbdaa11476a1d6f0bb... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Lad-Prabhakar/Renesas-RZ-G2L-CANFD-support/20210722-035332 git checkout 90a103694ef5a19dbdaa11476a1d6f0bbcea42ad # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arm64 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 >>): FATAL ERROR: Unable to parse input tree --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org