Re: [Intel-gfx] [PATCH v2 06/10] drm/fb-helper: Initialize fb-helper's preferred BPP in prepare function

From: kernel test robot <lkp@intel.com>
To: Thomas Zimmermann <tzimmermann@suse.de>,
	airlied@gmail.com, daniel@ffwll.ch,
	maarten.lankhorst@linux.intel.com, mripard@kernel.org,
	javierm@redhat.com
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	amd-gfx@lists.freedesktop.org,
	Thomas Zimmermann <tzimmermann@suse.de>,
	linux-tegra@vger.kernel.org, freedreno@lists.freedesktop.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [Intel-gfx] [PATCH v2 06/10] drm/fb-helper: Initialize fb-helper's preferred BPP in prepare function
Date: Wed, 25 Jan 2023 20:12:30 +0800	[thread overview]
Message-ID: <202301252016.vm7ksFra-lkp@intel.com> (raw)
In-Reply-To: <20230124134010.30263-7-tzimmermann@suse.de>

Hi Thomas,

I love your patch! Yet something to improve:

[auto build test ERROR on 7d3e7f64a42d66ba8da6e7b66a8d85457ef84570]

url:    https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/drm-client-Test-for-connectors-before-sending-hotplug-event/20230124-214220
base:   7d3e7f64a42d66ba8da6e7b66a8d85457ef84570
patch link:    https://lore.kernel.org/r/20230124134010.30263-7-tzimmermann%40suse.de
patch subject: [Intel-gfx] [PATCH v2 06/10] drm/fb-helper: Initialize fb-helper's preferred BPP in prepare function
config: x86_64-randconfig-a014-20230123 (https://download.01.org/0day-ci/archive/20230125/202301252016.vm7ksFra-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/70e38534e74e4d12bb02b3b352bba2aed417f541
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Thomas-Zimmermann/drm-client-Test-for-connectors-before-sending-hotplug-event/20230124-214220
        git checkout 70e38534e74e4d12bb02b3b352bba2aed417f541
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/gma500/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/gma500/framebuffer.c:412:44: error: too many arguments to function call, expected 3, have 4
           drm_fb_helper_prepare(dev, fb_helper, 32, &psb_fb_helper_funcs);
           ~~~~~~~~~~~~~~~~~~~~~                     ^~~~~~~~~~~~~~~~~~~~
   include/drm/drm_fb_helper.h:295:20: note: 'drm_fb_helper_prepare' declared here
   static inline void drm_fb_helper_prepare(struct drm_device *dev,
                      ^
>> drivers/gpu/drm/gma500/framebuffer.c:421:46: error: too few arguments to function call, expected 2, have 1
           ret = drm_fb_helper_initial_config(fb_helper);
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~          ^
   include/drm/drm_fb_helper.h:459:19: note: 'drm_fb_helper_initial_config' declared here
   static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper,
                     ^
   2 errors generated.

vim +412 drivers/gpu/drm/gma500/framebuffer.c

   397	
   398	int psb_fbdev_init(struct drm_device *dev)
   399	{
   400		struct drm_fb_helper *fb_helper;
   401		struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
   402		int ret;
   403	
   404		fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
   405		if (!fb_helper) {
   406			dev_err(dev->dev, "no memory\n");
   407			return -ENOMEM;
   408		}
   409	
   410		dev_priv->fb_helper = fb_helper;
   411	
 > 412		drm_fb_helper_prepare(dev, fb_helper, 32, &psb_fb_helper_funcs);
   413	
   414		ret = drm_fb_helper_init(dev, fb_helper);
   415		if (ret)
   416			goto free;
   417	
   418		/* disable all the possible outputs/crtcs before entering KMS mode */
   419		drm_helper_disable_unused_functions(dev);
   420	
 > 421		ret = drm_fb_helper_initial_config(fb_helper);
   422		if (ret)
   423			goto fini;
   424	
   425		return 0;
   426	
   427	fini:
   428		drm_fb_helper_fini(fb_helper);
   429	free:
   430		kfree(fb_helper);
   431		return ret;
   432	}
   433	

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

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