Hi Shiyang, Thank you for the patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] [also build test ERROR on next-20220408] [cannot apply to xfs-linux/for-next linus/master linux/master v5.18-rc1] [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/Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20220411-001048 base: https://github.com/hnaz/linux-mm master config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20220411/202204110700.66Eh1XZg-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/bf68be0c39b8ecc4223b948a9ee126af167d74f0 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20220411-001048 git checkout bf68be0c39b8ecc4223b948a9ee126af167d74f0 # 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: fs/xfs/xfs_buf.o: in function `xfs_alloc_buftarg': >> xfs_buf.c:(.text+0x9920): undefined reference to `xfs_dax_holder_operations' -- 0-DAY CI Kernel Test Service https://01.org/lkp
