[PATCH v2 2/3] drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_xrgb2101010()

[kernel test robot]

Hi "José,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on 61a9fa154d217c13eea90aa5bc635bc4b1fcb66e]

url:    https://github.com/intel-lab-lkp/linux/commits/Jos-Exp-sito/KUnit-tests-for-RGB888-XRGB2101010-and-grayscale/20220828-170347
base:   61a9fa154d217c13eea90aa5bc635bc4b1fcb66e
config: hexagon-randconfig-r014-20220828 (https://download.01.org/0day-ci/archive/20220828/202208282022.9682WEre-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project a2100daf12fb980a29fd1a9c85ccf8eaaaf79730)
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/5b513d5c5cc6ccf62c7b8d72f431079041ce69d7
        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/20220828-170347
        git checkout 5b513d5c5cc6ccf62c7b8d72f431079041ce69d7
        # 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=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp at intel.com>

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