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Lin" , Singo Chang , Nancy Lin , Project_Global_Chrome_Upstream_Group@mediatek.com Subject: Re: [PATCH v6 2/2] drm/mediatek: Add blend_modes to mtk_plane_init() for different SoCs Message-ID: <202409290651.YLKsl39c-lkp@intel.com> References: <20240926083526.24629-3-jason-jh.lin@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240926083526.24629-3-jason-jh.lin@mediatek.com> Hi Jason-JH.Lin, kernel test robot noticed the following build warnings: [auto build test WARNING on drm/drm-next] [also build test WARNING on linus/master next-20240927] [cannot apply to v6.11] [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/Jason-JH-Lin/drm-mediatek-ovl-Add-blend_modes-to-driver-data/20240926-163734 base: git://anongit.freedesktop.org/drm/drm drm-next patch link: https://lore.kernel.org/r/20240926083526.24629-3-jason-jh.lin%40mediatek.com patch subject: [PATCH v6 2/2] drm/mediatek: Add blend_modes to mtk_plane_init() for different SoCs config: arm64-randconfig-001-20240929 (https://download.01.org/0day-ci/archive/20240929/202409290651.YLKsl39c-lkp@intel.com/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 7773243d9916f98ba0ffce0c3a960e4aa9f03e81) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240929/202409290651.YLKsl39c-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202409290651.YLKsl39c-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/mediatek/mtk_ethdr.c:18: In file included from drivers/gpu/drm/mediatek/mtk_crtc.h:9: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:36: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:28: In file included from include/linux/ftrace.h:13: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2232: include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/gpu/drm/mediatek/mtk_ethdr.c:18: In file included from drivers/gpu/drm/mediatek/mtk_crtc.h:10: drivers/gpu/drm/mediatek/mtk_ddp_comp.h:83:2: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 83 | const u32 (*get_blend_modes)(struct device *dev); | ^~~~~ drivers/gpu/drm/mediatek/mtk_ddp_comp.h:271:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 271 | const u32 mtk_ddp_comp_get_blend_modes(struct mtk_ddp_comp *comp) | ^~~~~ In file included from drivers/gpu/drm/mediatek/mtk_ethdr.c:21: >> drivers/gpu/drm/mediatek/mtk_ethdr.h:16:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 16 | const u32 mtk_ethdr_get_blend_modes(struct device *dev); | ^~~~~ >> drivers/gpu/drm/mediatek/mtk_ethdr.c:148:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 148 | const u32 mtk_ethdr_get_blend_modes(struct device *dev) | ^~~~~ 5 warnings generated. -- In file included from drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:7: In file included from include/drm/drm_of.h:8: In file included from include/drm/drm_bridge.h:30: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:36: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:28: In file included from include/linux/ftrace.h:13: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2232: include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:20: drivers/gpu/drm/mediatek/mtk_ddp_comp.h:83:2: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 83 | const u32 (*get_blend_modes)(struct device *dev); | ^~~~~ drivers/gpu/drm/mediatek/mtk_ddp_comp.h:271:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 271 | const u32 mtk_ddp_comp_get_blend_modes(struct mtk_ddp_comp *comp) | ^~~~~ In file included from drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:21: drivers/gpu/drm/mediatek/mtk_disp_drv.h:106:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 106 | const u32 mtk_ovl_get_blend_modes(struct device *dev); | ^~~~~ drivers/gpu/drm/mediatek/mtk_disp_drv.h:135:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 135 | const u32 mtk_ovl_adaptor_get_blend_modes(struct device *dev); | ^~~~~ In file included from drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:23: >> drivers/gpu/drm/mediatek/mtk_ethdr.h:16:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 16 | const u32 mtk_ethdr_get_blend_modes(struct device *dev); | ^~~~~ drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c:403:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers] 403 | const u32 mtk_ovl_adaptor_get_blend_modes(struct device *dev) | ^~~~~ 7 warnings generated. vim +/const +16 drivers/gpu/drm/mediatek/mtk_ethdr.h 8 9 void mtk_ethdr_start(struct device *dev); 10 void mtk_ethdr_stop(struct device *dev); 11 int mtk_ethdr_clk_enable(struct device *dev); 12 void mtk_ethdr_clk_disable(struct device *dev); 13 void mtk_ethdr_config(struct device *dev, unsigned int w, 14 unsigned int h, unsigned int vrefresh, 15 unsigned int bpc, struct cmdq_pkt *cmdq_pkt); > 16 const u32 mtk_ethdr_get_blend_modes(struct device *dev); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki