Hi shiyongbang, kernel test robot noticed the following build errors: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on linus/master v6.12-rc1 next-20241003] [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/shiyongbang/drm-hisilicon-hibmc-add-dp-aux-in-hibmc-drivers/20240930-181437 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20240930100610.782363-4-shiyongbang%40huawei.com patch subject: [PATCH drm-dp 3/4] drm/hisilicon/hibmc: add dp kapi moduel in hibmc drivers config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20241004/202410040328.VeVxM9yB-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241004/202410040328.VeVxM9yB-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410040328.VeVxM9yB-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/gpu/drm/hisilicon/hibmc/dp/dp_kapi.o: in function `hibmc_dp_link_cfg': >> dp_kapi.c:(.text+0x233): undefined reference to `__udivdi3' >> ld: dp_kapi.c:(.text+0x35a): undefined reference to `__udivdi3' ld: dp_kapi.c:(.text+0x3cd): undefined reference to `__udivdi3' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki