[chrome-os:chromeos-6.6 138/138] drivers/soc/mediatek/mtk-dpc.c:470:24: sparse: sparse: symbol 'mtk_dpc_driver' was not declared. Should it be static?

[kernel test robot <lkp@intel.com>]

tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-6.6
head:   c76c68baa3b1801d81033deae4c36dd8dfe350f5
commit: 073720863458cfc81c898a81e68932cd296b3e37 [138/138] CHROMIUM: drm/mediatek: add display MMDVFS and MMQoS Support
config: arm-randconfig-r121-20250529 (https://download.01.org/0day-ci/archive/20250530/202505301435.vTHMKFDA-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.3.0
reproduce: (https://download.01.org/0day-ci/archive/20250530/202505301435.vTHMKFDA-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202505301435.vTHMKFDA-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/soc/mediatek/mtk-dpc.c:470:24: sparse: sparse: symbol 'mtk_dpc_driver' was not declared. Should it be static?
--
>> drivers/gpu/drm/mediatek/mtk_drm_drv.c:877:73: sparse: sparse: Using plain integer as NULL pointer
   drivers/gpu/drm/mediatek/mtk_drm_drv.c:359:10: sparse: sparse: Initializer entry defined twice
   drivers/gpu/drm/mediatek/mtk_drm_drv.c:363:10: sparse:   also defined here

vim +/mtk_dpc_driver +470 drivers/soc/mediatek/mtk-dpc.c

   469	
 > 470	struct platform_driver mtk_dpc_driver = {
   471		.probe = mtk_dpc_probe,
   472		.remove = mtk_dpc_remove,
   473		.driver = {
   474			.name = "mediatek-disp-dpc",
   475			.owner = THIS_MODULE,
   476			.of_match_table = mtk_dpc_driver_dt_match,
   477		},
   478	};
   479	module_platform_driver(mtk_dpc_driver);
   480	

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