Hi Jan, I love your patch! Yet something to improve: [auto build test ERROR on tytso-ext4/dev] [also build test ERROR on linus/master v5.19-rc1 next-20220608] [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/Jan-Kara/jbd2-Remove-unused-exports-for-jbd2-debugging/20220606-224629 base: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev config: hexagon-randconfig-r023-20220607 (https://download.01.org/0day-ci/archive/20220608/202206082321.RIUKdEnL-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a) 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/9aaaac58ce0525ce441ad75b45bf3e5f3911a82b git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jan-Kara/jbd2-Remove-unused-exports-for-jbd2-debugging/20220606-224629 git checkout 9aaaac58ce0525ce441ad75b45bf3e5f3911a82b # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "__jbd2_debug" [fs/ext4/ext4.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp
