[PATCH v12 13/15] drm/vkms: Create KUnit tests for YUV conversions

[kernel test robot]

Hi Louis,

kernel test robot noticed the following build errors:

[auto build test ERROR on 82fe69e63d2b5a5e86ea94c7361c833d3848ab69]

url:    https://github.com/intel-lab-lkp/linux/commits/Louis-Chauvet/drm-vkms-Code-formatting/20241008-001316
base:   82fe69e63d2b5a5e86ea94c7361c833d3848ab69
patch link:    https://lore.kernel.org/r/20241007-yuv-v12-13-01c1ada6fec8%40bootlin.com
patch subject: [PATCH v12 13/15] drm/vkms: Create KUnit tests for YUV conversions
config: i386-randconfig-013-20241010 (https://download.01.org/0day-ci/archive/20241011/202410110407.EHvadSaF-lkp@intel.com/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/20241011/202410110407.EHvadSaF-lkp@intel.com/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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410110407.EHvadSaF-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

WARNING: modpost: missing MODULE_DESCRIPTION() in lib/slub_kunit.o
>> ERROR: modpost: "drm_get_color_range_name" [drivers/gpu/drm/vkms/tests/vkms_format_test.ko] undefined!
>> ERROR: modpost: "drm_get_color_encoding_name" [drivers/gpu/drm/vkms/tests/vkms_format_test.ko] undefined!
>> ERROR: modpost: "get_conversion_matrix_to_argb_u16" [drivers/gpu/drm/vkms/tests/vkms_format_test.ko] undefined!

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=y]

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