Hi Anson, Thank you for the patch! Yet something to improve: [auto build test ERROR on shawnguo/for-next] [also build test ERROR on clk/clk-next soc/for-next v5.7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Anson-Huang/Support-building-i-M... base: https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git for-next config: x86_64-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 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 >>, old ones prefixed by <<): ld: drivers/clk/imx/clk-scu.o: in function `clk_scu_atf_set_cpu_rate': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org