Hi Kishon, I love your patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v5.12-rc2 next-20210310] [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/Kishon-Vijay-Abraham-I/AM64-Add-... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 144c79ef33536b4ecb4951e07dbc1f2b7fa99d32 config: arc-randconfig-r022-20210308 (attached as .config) compiler: arc-elf-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/918d7061e3f8808f1665112ca2bc8ed42... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kishon-Vijay-Abraham-I/AM64-Add-SERDES-driver-support/20210310-201224 git checkout 918d7061e3f8808f1665112ca2bc8ed424d108bd # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 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 >>): 225 | [CDNS_TORRENT_REFCLK_DRIVER] = "refclk-driver", | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/phy/cadence/phy-cadence-torrent.c:225:3: note: (near initialization for 'clk_names') vim +/CDNS_TORRENT_REFCLK_DRIVER +225 drivers/phy/cadence/phy-cadence-torrent.c 223 224 static const char * const clk_names[] = { 226 }; 227 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org