Hi Ian, kernel test robot noticed the following build warnings: [auto build test WARNING on drm/drm-next] [also build test WARNING on drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.9 next-20240517] [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/Ian-Forbes/drm-vmwgfx-Filter-modes-which-exceed-graphics-memory/20240518-024955 base: git://anongit.freedesktop.org/drm/drm drm-next patch link: https://lore.kernel.org/r/20240517184811.25807-2-ian.forbes%40broadcom.com patch subject: [PATCH v2 1/4] drm/vmwgfx: Filter modes which exceed graphics memory config: i386-randconfig-141-20240518 (https://download.01.org/0day-ci/archive/20240518/202405181844.pA39DlHd-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240518/202405181844.pA39DlHd-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405181844.pA39DlHd-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c:47: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * llvmpipe will align the width and height of its buffers to match its vim +47 drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c 38 39 #define vmw_crtc_to_stdu(x) \ 40 container_of(x, struct vmw_screen_target_display_unit, base.crtc) 41 #define vmw_encoder_to_stdu(x) \ 42 container_of(x, struct vmw_screen_target_display_unit, base.encoder) 43 #define vmw_connector_to_stdu(x) \ 44 container_of(x, struct vmw_screen_target_display_unit, base.connector) 45 46 /** > 47 * llvmpipe will align the width and height of its buffers to match its 48 * tile size. We need to keep this in mind when exposing modes to userspace 49 * so that this possible over-allocation will not exceed graphics memory. 50 */ 51 #define LLVM_PIPE_TILE_SIZE 64 52 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki