Hi Liang, I love your patch! Yet something to improve: [auto build test ERROR on mtd/nand/next] [also build test ERROR on mtd/mtd/next mtd/mtd/fixes robh/for-next v5.17-rc4 next-20220217] [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/Liang-Yang/refine-the-NFC-clock-... base: https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next config: hexagon-randconfig-r013-20220217 (https://download.01.org/0day-ci/archive/20220217/202202172131.hVJG538q-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0bad7cb56526f2572c74449fcf97c1fcda42b41d) 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/d3d7ef65145346ff8212125d56afff629... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Liang-Yang/refine-the-NFC-clock-framework/20220217-145053 git checkout d3d7ef65145346ff8212125d56afff6290a5ab68 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash 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