Hi Huang, Thank you for the patch! Yet something to improve: [auto build test ERROR on xiang-erofs/dev-test] [also build test ERROR on next-20211111] [cannot apply to v5.15] [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/Huang-Jianan/erofs-add-sysfs-int... base: https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test config: xtensa-buildonly-randconfig-r004-20211111 (attached as .config) compiler: xtensa-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/d6bf9edf69e87ee0a9795421ff2e1a9b6... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Huang-Jianan/erofs-add-sysfs-interface/20211109-105542 git checkout d6bf9edf69e87ee0a9795421ff2e1a9b69a29ce8 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=xtensa 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 >>): In file included from <command-line>: 140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b) | ^~~~~~~~~~~~~~~~~~ include/linux/stddef.h:17:33: note: in expansion of macro '__compiler_offsetof' 17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER) | ^~~~~~~~~~~~~~~~~~~ fs/erofs/sysfs.c:42:19: note: in expansion of macro 'offsetof' 42 | .offset = offsetof(struct _struct, _name),\ | ^~~~~~~~ fs/erofs/sysfs.c:46:9: note: in expansion of macro 'EROFS_ATTR_OFFSET' 46 | EROFS_ATTR_OFFSET(_name, 0644, _id, _struct) | ^~~~~~~~~~~~~~~~~ fs/erofs/sysfs.c:55:9: note: in expansion of macro 'EROFS_RW_ATTR' 55 | EROFS_RW_ATTR(_name, pointer_bool, _struct) | ^~~~~~~~~~~~~ fs/erofs/sysfs.c:59:1: note: in expansion of macro 'EROFS_RW_ATTR_BOOL' 59 | EROFS_RW_ATTR_BOOL(readahead_sync_decompress, erofs_mount_opts); | ^~~~~~~~~~~~~~~~~~ vim +140 include/linux/compiler_types.h 71391bdd2e9aab Xiaozhou Liu 2018-12-14 139 71391bdd2e9aab Xiaozhou Liu 2018-12-14 @140 #define __compiler_offsetof(a, b) __builtin_offsetof(a, b) 71391bdd2e9aab Xiaozhou Liu 2018-12-14 141 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org