linux-kernel - Re: [PATCH 2/3] drm: tiny: Add support for Mayqueen Pixpaper e-ink panel

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Message-ID: <202507092231.FtZkMync-lkp@intel.com>
Date: Wed, 9 Jul 2025 23:02:27 +0800
From: kernel test robot <lkp@...el.com>
To: LiangCheng Wang <zaq14760@...il.com>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Christian König <christian.koenig@....com>,
	Wig Cheng <onlywig@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
	LiangCheng Wang <zaq14760@...il.com>
Subject: Re: [PATCH 2/3] drm: tiny: Add support for Mayqueen Pixpaper e-ink
 panel

Hi LiangCheng,

kernel test robot noticed the following build warnings:

[auto build test WARNING on d7b8f8e20813f0179d8ef519541a3527e7661d3a]

url:    https://github.com/intel-lab-lkp/linux/commits/LiangCheng-Wang/dt-bindings-vendor-prefixes-Add-Mayqueen-name/20250708-180933
base:   d7b8f8e20813f0179d8ef519541a3527e7661d3a
patch link:    https://lore.kernel.org/r/20250708-drm-v1-2-45055fdadc8a%40gmail.com
patch subject: [PATCH 2/3] drm: tiny: Add support for Mayqueen Pixpaper e-ink panel
config: sparc-randconfig-r112-20250709 (https://download.01.org/0day-ci/archive/20250709/202507092231.FtZkMync-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 14.3.0
reproduce: (https://download.01.org/0day-ci/archive/20250709/202507092231.FtZkMync-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507092231.FtZkMync-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/tiny/pixpaper.c:85:10: sparse: sparse: Initializer entry defined twice
   drivers/gpu/drm/tiny/pixpaper.c:86:9: sparse:   also defined here
   drivers/gpu/drm/tiny/pixpaper.c:601:10: sparse: sparse: Initializer entry defined twice
   drivers/gpu/drm/tiny/pixpaper.c:606:10: sparse:   also defined here

vim +85 drivers/gpu/drm/tiny/pixpaper.c

    80	
    81	static const struct drm_plane_funcs pixpaper_plane_funcs = {
    82		.update_plane = drm_atomic_helper_update_plane,
    83		.disable_plane = drm_atomic_helper_disable_plane,
    84		.destroy = drm_plane_cleanup,
  > 85		.reset = drm_atomic_helper_plane_reset,
    86		DRM_GEM_SHADOW_PLANE_FUNCS,
    87	};
    88	

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