linux-kernel - Re: [PATCH] drm/mediatek: Convert legacy DRM logging to drm_* helpers in mtk

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Message-ID: <202512220515.z3QybJ8I-lkp@intel.com>
Date: Mon, 22 Dec 2025 06:04:51 +0800
From: kernel test robot <lkp@...el.com>
To: Abhishek Rajput <abhiraj21put@...il.com>,
	Chun-Kuang Hu <chunkuang.hu@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: oe-kbuild-all@...ts.linux.dev, dri-devel@...ts.freedesktop.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, abhiraj21put@...il.com
Subject: Re: [PATCH] drm/mediatek: Convert legacy DRM logging to drm_*
 helpers in mtk_crtc.c

Hi Abhishek,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on pza/reset/next linus/master v6.19-rc1 next-20251219]
[cannot apply to pza/imx-drm/next]
[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/Abhishek-Rajput/drm-mediatek-Convert-legacy-DRM-logging-to-drm_-helpers-in-mtk_crtc-c/20251217-150453
base:   https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next
patch link:    https://lore.kernel.org/r/20251217070303.689913-1-abhiraj21put%40gmail.com
patch subject: [PATCH] drm/mediatek: Convert legacy DRM logging to drm_* helpers in mtk_crtc.c
config: loongarch-randconfig-r062-20251218 (https://download.01.org/0day-ci/archive/20251222/202512220515.z3QybJ8I-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 12.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251222/202512220515.z3QybJ8I-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/202512220515.z3QybJ8I-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/lockdep.h:15,
                    from include/linux/mutex.h:17,
                    from include/linux/notifier.h:14,
                    from include/linux/clk.h:14,
                    from drivers/gpu/drm/mediatek/mtk_crtc.c:6:
   arch/loongarch/include/asm/percpu.h:20:4: error: #error compiler support for the model attribute is necessary when a recent assembler is used
      20 | #  error compiler support for the model attribute is necessary when a recent assembler is used
         |    ^~~~~
   drivers/gpu/drm/mediatek/mtk_crtc.c: In function 'mtk_crtc_ddp_irq':
>> drivers/gpu/drm/mediatek/mtk_crtc.c:651:28: warning: unused variable 'dev' [-Wunused-variable]
     651 |         struct drm_device *dev = mtk_crtc->base.dev;
         |                            ^~~


vim +/dev +651 drivers/gpu/drm/mediatek/mtk_crtc.c

   645	
   646	static void mtk_crtc_ddp_irq(void *data)
   647	{
   648		struct drm_crtc *crtc = data;
   649		struct mtk_crtc *mtk_crtc = to_mtk_crtc(crtc);
   650		struct mtk_drm_private *priv = crtc->dev->dev_private;
 > 651		struct drm_device *dev = mtk_crtc->base.dev;
   652	

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