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 v5.18-rc1 next-20220404] [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/intel-lab-lkp/linux/commits/Liang-Yang/refine-the-NFC-clock-framework/20220402-155036 base: https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next config: s390-randconfig-r002-20220403 (https://download.01.org/0day-ci/archive/20220404/202204042238.eZq8bjau-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 11.2.0 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/intel-lab-lkp/linux/commit/c34b64ab8005a978739f157a07ed342d247fecac git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Liang-Yang/refine-the-NFC-clock-framework/20220402-155036 git checkout c34b64ab8005a978739f157a07ed342d247fecac # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): s390-linux-ld: drivers/mtd/nand/raw/meson_nand.o: in function `meson_nfc_probe': meson_nand.c:(.text+0xd9e): undefined reference to `clk_divider_ops' >> s390-linux-ld: meson_nand.c:(.text+0xe34): undefined reference to `devm_clk_register' s390-linux-ld: net/core/sock.o: in function `sk_destruct': sock.c:(.text+0x373e): undefined reference to `__sk_defer_free_flush' -- 0-DAY CI Kernel Test Service https://01.org/lkp
