Hi Hsia-Jun, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.3-rc3 next-20230322] [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/Hsia-Jun-Li/drm-fourcc-Add-Synaptics-VideoSmart-tiled-modifiers/20230322-163252 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230322082910.115371-3-randy.li%40synaptics.com patch subject: [PATCH v6 2/2] Documentation/gpu: Add Synaptics tiling formats documentation reproduce: # https://github.com/intel-lab-lkp/linux/commit/51642395567738204b07b9c48e27d4a5298f1ca9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Hsia-Jun-Li/drm-fourcc-Add-Synaptics-VideoSmart-tiled-modifiers/20230322-163252 git checkout 51642395567738204b07b9c48e27d4a5298f1ca9 make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS make htmldocs If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303230311.mRoFe6oK-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> Documentation/gpu/synaptics.rst:47: WARNING: Bullet list ends without a blank line; unexpected unindent. >> Documentation/gpu/synaptics.rst:60: WARNING: Block quote ends without a blank line; unexpected unindent. >> Documentation/gpu/synaptics.rst:38: WARNING: Error parsing content block for the "flat-table" directive: exactly one bullet list expected. vim +47 Documentation/gpu/synaptics.rst 37 > 38 .. flat-table:: Synpatics Image Format Modifiers 39 40 * - Identifier 41 - Fourcc 42 - Details 43 44 * - DRM_FORMAT_MOD_SYNA_V4H1 45 - DRM_FORMAT_NV12 46 - The plain uncompressed 8 bits tile format. It sounds similar to > 47 Intel's Y-tile. but it won't take any pixel from the next X direction 48 in a tile group. The line stride and image height must be aligned to 49 a multiple of 16. The height of chrominance plane would plus 8. 50 51 * - DRM_FORMAT_MOD_SYNA_V4H3P8 52 - DRM_FORMAT_NV15 53 - The plain uncompressed 10 bits tile format. It stores pixel in 2D 54 3x4 tiles with a 8bits padding to each of tile. Then a tile is in a 55 128 bits cache line. 56 57 * - DRM_FORMAT_MOD_SYNA_V4H1_64L4_COMPRESSED 58 - DRM_FORMAT_NV12 59 - Group of tiles and compressed variant of ``DRM_FORMAT_MOD_SYNA_V4H1``. > 60 A group of tiles would contain 64x4 pixels, where a tile has 1x4 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests