Hi Yangtao, I love your patch! Yet something to improve: [auto build test ERROR on tytso-ext4/dev] [also build test ERROR on linus/master v6.3-rc1 next-20230310] [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/Yangtao-Li/ext4-convert-to-DIV_ROUND_UP-in-mpage_process_page_bufs/20230310-140903 base: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev patch link: https://lore.kernel.org/r/20230310060734.8780-1-frank.li%40vivo.com patch subject: [PATCH] ext4: convert to DIV_ROUND_UP() in mpage_process_page_bufs() config: i386-defconfig (https://download.01.org/0day-ci/archive/20230311/202303110211.LXeNm5uw-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/f4d2db5f59592a5688be6e4d2d3dd6f3f94d4f96 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yangtao-Li/ext4-convert-to-DIV_ROUND_UP-in-mpage_process_page_bufs/20230310-140903 git checkout f4d2db5f59592a5688be6e4d2d3dd6f3f94d4f96 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303110211.LXeNm5uw-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: fs/ext4/inode.o: in function `mpage_process_page_bufs': >> inode.c:(.text+0xbda): undefined reference to `__divdi3' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
