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: linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	intel-gfx@lists.freedesktop.org, llvm@lists.linux.dev,
	dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
	Thomas Zimmermann <tzimmermann@suse.de>,
	oe-kbuild-all@lists.linux.dev, 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 12:51:20 +0800	[thread overview]
Message-ID: <202301251250.eyIn4zjn-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: riscv-randconfig-r042-20230123 (https://download.01.org/0day-ci/archive/20230125/202301251250.eyIn4zjn-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # 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=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/gpu/drm/radeon/

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/radeon/radeon_fb.c:352:10: error: too many arguments to function call, expected 3, have 4
                                 &radeon_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/radeon/radeon_fb.c:361:52: error: too few arguments to function call, expected 2, have 1
           ret = drm_fb_helper_initial_config(&rfbdev->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 +352 drivers/gpu/drm/radeon/radeon_fb.c

386516744ba45d Dave Airlie       2010-03-30  326  
386516744ba45d Dave Airlie       2010-03-30  327  int radeon_fbdev_init(struct radeon_device *rdev)
386516744ba45d Dave Airlie       2010-03-30  328  {
8be48d924c307e Dave Airlie       2010-03-30  329  	struct radeon_fbdev *rfbdev;
4abe35204af82a Dave Airlie       2010-03-30  330  	int bpp_sel = 32;
5a79395b2791cc Chris Wilson      2010-06-06  331  	int ret;
4abe35204af82a Dave Airlie       2010-03-30  332  
e5f243bd2edd95 Alex Deucher      2016-03-10  333  	/* don't enable fbdev if no connectors */
e5f243bd2edd95 Alex Deucher      2016-03-10  334  	if (list_empty(&rdev->ddev->mode_config.connector_list))
e5f243bd2edd95 Alex Deucher      2016-03-10  335  		return 0;
e5f243bd2edd95 Alex Deucher      2016-03-10  336  
7b8bd6bb4298ac Egbert Eich       2017-07-18  337  	/* select 8 bpp console on 8MB cards, or 16 bpp on RN50 or 32MB */
7b8bd6bb4298ac Egbert Eich       2017-07-18  338  	if (rdev->mc.real_vram_size <= (8*1024*1024))
4abe35204af82a Dave Airlie       2010-03-30  339  		bpp_sel = 8;
7b8bd6bb4298ac Egbert Eich       2017-07-18  340  	else if (ASIC_IS_RN50(rdev) ||
7b8bd6bb4298ac Egbert Eich       2017-07-18  341  		 rdev->mc.real_vram_size <= (32*1024*1024))
7b8bd6bb4298ac Egbert Eich       2017-07-18  342  		bpp_sel = 16;
8be48d924c307e Dave Airlie       2010-03-30  343  
8be48d924c307e Dave Airlie       2010-03-30  344  	rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL);
8be48d924c307e Dave Airlie       2010-03-30  345  	if (!rfbdev)
8be48d924c307e Dave Airlie       2010-03-30  346  		return -ENOMEM;
771fe6b912fca5 Jerome Glisse     2009-06-05  347  
8be48d924c307e Dave Airlie       2010-03-30  348  	rfbdev->rdev = rdev;
8be48d924c307e Dave Airlie       2010-03-30  349  	rdev->mode_info.rfbdev = rfbdev;
10a231026574f9 Thierry Reding    2014-06-27  350  
70e38534e74e4d Thomas Zimmermann 2023-01-24  351  	drm_fb_helper_prepare(rdev->ddev, &rfbdev->helper, bpp_sel,
10a231026574f9 Thierry Reding    2014-06-27 @352  			      &radeon_fb_helper_funcs);
785b93ef8c3097 Dave Airlie       2009-08-28  353  
2dea2d1182179e Pankaj Bharadiya  2020-03-05  354  	ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper);
01934c2a691882 Thierry Reding    2014-12-19  355  	if (ret)
01934c2a691882 Thierry Reding    2014-12-19  356  		goto free;
5a79395b2791cc Chris Wilson      2010-06-06  357  
76a39dbfb2d1bc Daniel Vetter     2013-01-20  358  	/* disable all the possible outputs/crtcs before entering KMS mode */
76a39dbfb2d1bc Daniel Vetter     2013-01-20  359  	drm_helper_disable_unused_functions(rdev->ddev);
76a39dbfb2d1bc Daniel Vetter     2013-01-20  360  
70e38534e74e4d Thomas Zimmermann 2023-01-24 @361  	ret = drm_fb_helper_initial_config(&rfbdev->helper);
01934c2a691882 Thierry Reding    2014-12-19  362  	if (ret)
01934c2a691882 Thierry Reding    2014-12-19  363  		goto fini;
01934c2a691882 Thierry Reding    2014-12-19  364  
771fe6b912fca5 Jerome Glisse     2009-06-05  365  	return 0;
01934c2a691882 Thierry Reding    2014-12-19  366  
01934c2a691882 Thierry Reding    2014-12-19  367  fini:
01934c2a691882 Thierry Reding    2014-12-19  368  	drm_fb_helper_fini(&rfbdev->helper);
01934c2a691882 Thierry Reding    2014-12-19  369  free:
01934c2a691882 Thierry Reding    2014-12-19  370  	kfree(rfbdev);
01934c2a691882 Thierry Reding    2014-12-19  371  	return ret;
386516744ba45d Dave Airlie       2010-03-30  372  }
386516744ba45d Dave Airlie       2010-03-30  373  

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