Re: [PATCH v5 2/2] drm/mediatek: Add blend_modes to mtk_plane_init() for different SoCs

From: kernel test robot
Date: Thu Sep 26 2024 - 05:05:26 EST

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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-20240926]
[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-fmt_convert-function-pointer-to-driver-data/20240925-182056
base: git://anongit.freedesktop.org/drm/drm drm-next
patch link: https://lore.kernel.org/r/20240925101927.17042-3-jason-jh.lin%40mediatek.com
patch subject: [PATCH v5 2/2] drm/mediatek: Add blend_modes to mtk_plane_init() for different SoCs
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20240926/202409261653.FyqBL1w8-lkp@xxxxxxxxx/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/20240926/202409261653.FyqBL1w8-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/202409261653.FyqBL1w8-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

In file included from drivers/gpu/drm/mediatek/mtk_crtc.c:7:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:8:
In file included from include/linux/mm.h:2232:
include/linux/vmstat.h:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/mediatek/mtk_crtc.c:22:
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)
| ^~~~~
6 warnings generated.
--
In file included from drivers/gpu/drm/mediatek/mtk_ddp_comp.c:17:
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:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/mediatek/mtk_ddp_comp.c:17:
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_ddp_comp.c:19:
>> 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);
| ^~~~~
drivers/gpu/drm/mediatek/mtk_disp_drv.h:170:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
170 | const u32 mtk_mdp_rdma_get_blend_modes(struct device *dev);
| ^~~~~
9 warnings generated.
--
In file included from drivers/gpu/drm/mediatek/mtk_disp_ovl.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:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/mediatek/mtk_disp_ovl.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_disp_ovl.c:20:
>> 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);
| ^~~~~
drivers/gpu/drm/mediatek/mtk_disp_drv.h:170:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
170 | const u32 mtk_mdp_rdma_get_blend_modes(struct device *dev);
| ^~~~~
>> drivers/gpu/drm/mediatek/mtk_disp_ovl.c:219:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
219 | const u32 mtk_ovl_get_blend_modes(struct device *dev)
| ^~~~~
10 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:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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);
| ^~~~~
drivers/gpu/drm/mediatek/mtk_disp_drv.h:170:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
170 | const u32 mtk_mdp_rdma_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)
| ^~~~~
10 warnings generated.
--
In file included from drivers/gpu/drm/mediatek/mtk_mdp_rdma.c:15:
In file included from drivers/gpu/drm/mediatek/mtk_disp_drv.h:13:
In file included from drivers/gpu/drm/mediatek/mtk_plane.h:10:
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:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/mediatek/mtk_mdp_rdma.c:15:
>> 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);
| ^~~~~
drivers/gpu/drm/mediatek/mtk_disp_drv.h:170:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
170 | const u32 mtk_mdp_rdma_get_blend_modes(struct device *dev);
| ^~~~~
In file included from drivers/gpu/drm/mediatek/mtk_mdp_rdma.c:16:
In file included from drivers/gpu/drm/mediatek/mtk_drm_drv.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)
| ^~~~~
>> drivers/gpu/drm/mediatek/mtk_mdp_rdma.c:236:1: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
236 | const u32 mtk_mdp_rdma_get_blend_modes(struct device *dev)
| ^~~~~
10 warnings generated.

vim +/const +83 drivers/gpu/drm/mediatek/mtk_ddp_comp.h

48
49 struct mtk_ddp_comp;
50 struct cmdq_pkt;
51 struct mtk_ddp_comp_funcs {
52 int (*power_on)(struct device *dev);
53 void (*power_off)(struct device *dev);
54 int (*clk_enable)(struct device *dev);
55 void (*clk_disable)(struct device *dev);
56 void (*config)(struct device *dev, unsigned int w,
57 unsigned int h, unsigned int vrefresh,
58 unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
59 void (*start)(struct device *dev);
60 void (*stop)(struct device *dev);
61 void (*register_vblank_cb)(struct device *dev,
62 void (*vblank_cb)(void *),
63 void *vblank_cb_data);
64 void (*unregister_vblank_cb)(struct device *dev);
65 void (*enable_vblank)(struct device *dev);
66 void (*disable_vblank)(struct device *dev);
67 unsigned int (*supported_rotations)(struct device *dev);
68 unsigned int (*layer_nr)(struct device *dev);
69 int (*layer_check)(struct device *dev,
70 unsigned int idx,
71 struct mtk_plane_state *state);
72 void (*layer_config)(struct device *dev, unsigned int idx,
73 struct mtk_plane_state *state,
74 struct cmdq_pkt *cmdq_pkt);
75 unsigned int (*gamma_get_lut_size)(struct device *dev);
76 void (*gamma_set)(struct device *dev,
77 struct drm_crtc_state *state);
78 void (*bgclr_in_on)(struct device *dev);
79 void (*bgclr_in_off)(struct device *dev);
80 void (*ctm_set)(struct device *dev,
81 struct drm_crtc_state *state);
82 struct device * (*dma_dev_get)(struct device *dev);
> 83 const u32 (*get_blend_modes)(struct device *dev);
84 const u32 *(*get_formats)(struct device *dev);
85 size_t (*get_num_formats)(struct device *dev);
86 void (*connect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
87 void (*disconnect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
88 void (*add)(struct device *dev, struct mtk_mutex *mutex);
89 void (*remove)(struct device *dev, struct mtk_mutex *mutex);
90 unsigned int (*encoder_index)(struct device *dev);
91 enum drm_mode_status (*mode_valid)(struct device *dev, const struct drm_display_mode *mode);
92 };
93

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