Hi Yongqiang, Thank you for the patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on pza/reset/next linus/master v5.12-rc8 next-20210420] [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/Yongqiang-Niu/support-gce-on-mt8... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-randconfig-c004-20210420 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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/22d3001c2b4312277648c7a056536d689... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yongqiang-Niu/support-gce-on-mt8192-platform/20210412-195315 git checkout 22d3001c2b4312277648c7a056536d689a2dcc8e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 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 >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org