Hi, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.18-rc3 next-20220421] [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/mingzhe-zou-easystack-cn/bcache-dynamic-incremental-gc/20220421-201917 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b253435746d9a4a701b5f09211b9c14d3370d0da config: m68k-randconfig-r025-20220421 (https://download.01.org/0day-ci/archive/20220422/202204220253.PJykKQfz-lkp@xxxxxxxxx/config) compiler: m68k-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/intel-lab-lkp/linux/commit/9934df989e22e2a0da9c61c9c47da9839220570e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review mingzhe-zou-easystack-cn/bcache-dynamic-incremental-gc/20220421-201917 git checkout 9934df989e22e2a0da9c61c9c47da9839220570e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): m68k-linux-ld: section .rodata VMA [0000000000002000,00000000001d1067] overlaps section .text VMA [0000000000000400,000000000057bf1f] m68k-linux-ld: drivers/md/bcache/btree.o: in function `bch_btree_gc': >> btree.c:(.text+0x54cc): undefined reference to `__udivdi3' -- 0-DAY CI Kernel Test Service https://01.org/lkp
