Hi "José, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on drm-tip/drm-tip] [cannot apply to drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next linus/master v6.0-rc1 next-20220817] [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/Jos-Exp-sito/KUnit-tests-for-RGB888-XRGB2101010-and-grayscale/20220816-183253 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next config: x86_64-rhel-8.3-kunit compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/eea55ae63365de29a15eb95504bbca668ddab276 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jos-Exp-sito/KUnit-tests-for-RGB888-XRGB2101010-and-grayscale/20220816-183253 git checkout eea55ae63365de29a15eb95504bbca668ddab276 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "drm_fb_xrgb8888_to_xrgb2101010" [drivers/gpu/drm/tests/drm_format_helper_test.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp