linux-kernel - Re: [PATCH 2/5] drm/panel: Add refcount support

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Message-ID: <202503260820.3wTF0Zap-lkp@intel.com>
Date: Wed, 26 Mar 2025 09:21:53 +0800
From: kernel test robot <lkp@...el.com>
To: Anusha Srivatsa <asrivats@...hat.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	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>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Anusha Srivatsa <asrivats@...hat.com>
Subject: Re: [PATCH 2/5] drm/panel: Add refcount support

Hi Anusha,

kernel test robot noticed the following build warnings:

[auto build test WARNING on c8ba07caaecc622a9922cda49f24790821af8a71]

url:    https://github.com/intel-lab-lkp/linux/commits/Anusha-Srivatsa/drm-panel-Add-new-helpers-for-refcounted-panel-allocatons/20250326-012651
base:   c8ba07caaecc622a9922cda49f24790821af8a71
patch link:    https://lore.kernel.org/r/20250325-b4-panel-refcounting-v1-2-4e2bf5d19c5d%40redhat.com
patch subject: [PATCH 2/5] drm/panel: Add refcount support
config: s390-randconfig-002-20250326 (https://download.01.org/0day-ci/archive/20250326/202503260820.3wTF0Zap-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250326/202503260820.3wTF0Zap-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/202503260820.3wTF0Zap-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/drm_panel.c:408: warning: expecting prototype for drm_bridge_put_void(). Prototype was for drm_panel_put_void() instead


vim +408 drivers/gpu/drm/drm_panel.c

   398	
   399	/**
   400	 * drm_bridge_put_void - wrapper to drm_bridge_put() taking a void pointer
   401	 *
   402	 * @data: pointer to @struct drm_bridge, cast to a void pointer
   403	 *
   404	 * Wrapper of drm_bridge_put() to be used when a function taking a void
   405	 * pointer is needed, for example as a devm action.
   406	 */
   407	static void drm_panel_put_void(void *data)
 > 408	{
   409		struct drm_panel *panel = (struct drm_panel *)data;
   410	
   411		drm_panel_put(panel);
   412	}
   413	

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