Hi Yue, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on xiang-erofs/dev-test] [also build test ERROR on next-20211214] [cannot apply to v5.16-rc5] [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/Yue-Hu/erofs-support-tail-packin... base: https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test config: m68k-defconfig (https://download.01.org/0day-ci/archive/20211215/202112152347.ItOf9VYu-lk...) compiler: m68k-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/0day-ci/linux/commit/669be7ff96dfecf5377f5717882b8e958... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yue-Hu/erofs-support-tail-packing-inline-compressed-data/20211215-174814 git checkout 669be7ff96dfecf5377f5717882b8e958eb16f0b # 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=m68k 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org