Hi Byungchul, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/locking/core] [also build test ERROR on tip/sched/core drm-misc/drm-misc-next linus/master v6.2-rc5 next-20230127] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Byungchul-Park/llist-Move-llist_-head-node-definition-to-types-h/20230128-102456 patch link: https://lore.kernel.org/r/1674782358-25542-26-git-send-email-max.byungchul.park%40gmail.com patch subject: [PATCH v8 25/25] dept: Track the potential waits of PG_{locked,writeback} config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20230129/202301290402.j3poWc84-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 12.1.0 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/ba934a05473c5212edeff20f2298a249bfe87351 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Byungchul-Park/llist-Move-llist_-head-node-definition-to-types-h/20230128-102456 git checkout ba934a05473c5212edeff20f2298a249bfe87351 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 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: "PG_locked_map" [mm/zsmalloc.ko] undefined! >> ERROR: modpost: "PG_locked_map" [mm/z3fold.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/reiserfs/reiserfs.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/ext4/ext4.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/ext2/ext2.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/jbd2/jbd2.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/minix/minix.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/ecryptfs/ecryptfs.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/nfs/nfs.ko] undefined! >> ERROR: modpost: "PG_locked_map" [fs/sysv/sysv.ko] undefined! WARNING: modpost: suppressed 44 unresolved symbol warnings because there were too many) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests