Hi Chandan, Thank you for the patch! Yet something to improve: [auto build test ERROR on xfs-linux/for-next] [also build test ERROR on 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/Chandan-Babu-R/xfs-Extend-per-inode-extent-counters/20211214-164920 base: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next config: riscv-randconfig-r042-20211214 (https://download.01.org/0day-ci/archive/20211214/202112142236.nxhglKkO-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/db28da144803c4262c0d8622d736a7d20952ef6b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Chandan-Babu-R/xfs-Extend-per-inode-extent-counters/20211214-164920 git checkout db28da144803c4262c0d8622d736a7d20952ef6b # 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=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: __udivdi3 >>> referenced by xfs_bmap.c >>> xfs/libxfs/xfs_bmap.o:(xfs_bmap_compute_maxlevels) in archive fs/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org