Re: [PATCH v6 3/3] drm/mediatek: Implement OF graphs support for display paths

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Hi AngeloGioacchino,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v6.10-rc3 next-20240611]
[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/AngeloGioacchino-Del-Regno/dt-bindings-display-mediatek-Add-OF-graph-support-for-board-path/20240611-163327
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20240611082831.477566-4-angelogioacchino.delregno%40collabora.com
patch subject: [PATCH v6 3/3] drm/mediatek: Implement OF graphs support for display paths
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20240612/202406120934.xJkzoJYC-lkp@xxxxxxxxx/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 4403cdbaf01379de96f8d0d6ea4f51a085e37766)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240612/202406120934.xJkzoJYC-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/202406120934.xJkzoJYC-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from drivers/gpu/drm/mediatek/mtk_dpi.c:21:
   In file included from include/drm/drm_atomic_helper.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:2253:
   include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     500 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     501 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     507 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     508 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     519 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     520 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     528 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     529 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/mediatek/mtk_dpi.c:711:17: error: use of undeclared identifier 'dsi'; did you mean 'dpi'?
     711 |                 ret = PTR_ERR(dsi->next_bridge);
         |                               ^~~
         |                               dpi
   drivers/gpu/drm/mediatek/mtk_dpi.c:706:18: note: 'dpi' declared here
     706 |         struct mtk_dpi *dpi = bridge_to_dpi(bridge);
         |                         ^
   5 warnings and 1 error generated.


vim +711 drivers/gpu/drm/mediatek/mtk_dpi.c

   702	
   703	static int mtk_dpi_bridge_attach(struct drm_bridge *bridge,
   704					 enum drm_bridge_attach_flags flags)
   705	{
   706		struct mtk_dpi *dpi = bridge_to_dpi(bridge);
   707		int ret;
   708	
   709		dpi->next_bridge = devm_drm_of_get_bridge(dpi->dev, dpi->dev->of_node, 1, -1);
   710		if (IS_ERR(dpi->next_bridge)) {
 > 711			ret = PTR_ERR(dsi->next_bridge);
   712			if (ret == -EPROBE_DEFER)
   713				return ret;
   714	
   715			/* Old devicetree has only one endpoint */
   716			dpi->next_bridge = devm_drm_of_get_bridge(dpi->dev, dpi->dev->of_node, 0, 0);
   717			if (IS_ERR(dpi->next_bridge))
   718				return dev_err_probe(dpi->dev, PTR_ERR(dpi->next_bridge),
   719						     "Failed to get bridge\n");
   720		}
   721	
   722		return drm_bridge_attach(bridge->encoder, dpi->next_bridge,
   723					 &dpi->bridge, flags);
   724	}
   725	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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