Hi "周琰杰, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on balbi-usb/testing/next] [also build test WARNING on usb/usb-testing linus/master v5.9-rc5 next-20200915] [cannot apply to phy/next] [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/Zhou-Yanjie/Use-the-generic-PHY-... base: https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git testing/next config: sh-randconfig-c003-20200916 (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; coccinelle warnings: (new ones prefixed by >>) Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org