Hi Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on drm-tip/drm-tip drm/drm-next drm-exynos/exynos-drm-next drm-misc/drm-misc-next linus/master v5.19-rc5 next-20220707] [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/Matthew-Auld/drm-i915-ttm-fix-sg_table-construction/20220708-011115 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-a011 (https://download.01.org/0day-ci/archive/20220708/202207081158.l1RcEsDh-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 66ae1d60bb278793fd651cece264699d522bab84) 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/a318752ca76b5fc3e8d9efa87d483c88d177475a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Matthew-Auld/drm-i915-ttm-fix-sg_table-construction/20220708-011115 git checkout a318752ca76b5fc3e8d9efa87d483c88d177475a # 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=i386 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: "__umoddi3" [drivers/gpu/drm/i915/i915.ko] undefined! >> ERROR: modpost: "__udivdi3" [drivers/gpu/drm/i915/i915.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp