linux-kernel - Re: [PATCH] drm: Fix fbcon blank on QEMU graphics drivers

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Message-ID: <202104170253.nBucPgtF-lkp@intel.com>
Date:   Sat, 17 Apr 2021 02:07:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Takashi Iwai <tiwai@...e.de>, dri-devel@...ts.freedesktop.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] drm: Fix fbcon blank on QEMU graphics drivers

Hi Takashi,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.12-rc7 next-20210416]
[cannot apply to drm/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]

url:    https://github.com/0day-ci/linux/commits/Takashi-Iwai/drm-Fix-fbcon-blank-on-QEMU-graphics-drivers/20210416-205539
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-a003-20210416 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 6a18cc23efad410db48a3ccfc233d215de7d4cb9)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/4b1a07505589e5f12ae52f249fa93b400e35e602
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Takashi-Iwai/drm-Fix-fbcon-blank-on-QEMU-graphics-drivers/20210416-205539
        git checkout 4b1a07505589e5f12ae52f249fa93b400e35e602
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/qxl/qxl_drv.c:123:12: error: no member named 'fb_helper' in 'struct qxl_device'
           if (qdev->fb_helper)
               ~~~~  ^
   drivers/gpu/drm/qxl/qxl_drv.c:124:9: error: no member named 'fb_helper' in 'struct qxl_device'
                   qdev->fb_helper->no_dpms_blank = true;
                   ~~~~  ^
   2 errors generated.


vim +123 drivers/gpu/drm/qxl/qxl_drv.c

    71	
    72	static int
    73	qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
    74	{
    75		struct qxl_device *qdev;
    76		int ret;
    77	
    78		if (pdev->revision < 4) {
    79			DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
    80				  " use xf86-video-qxl in user mode");
    81			return -EINVAL; /* TODO: ENODEV ? */
    82		}
    83	
    84		qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
    85					  struct qxl_device, ddev);
    86		if (IS_ERR(qdev)) {
    87			pr_err("Unable to init drm dev");
    88			return -ENOMEM;
    89		}
    90	
    91		ret = pci_enable_device(pdev);
    92		if (ret)
    93			return ret;
    94	
    95		ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
    96		if (ret)
    97			goto disable_pci;
    98	
    99		if (is_vga(pdev) && pdev->revision < 5) {
   100			ret = vga_get_interruptible(pdev, VGA_RSRC_LEGACY_IO);
   101			if (ret) {
   102				DRM_ERROR("can't get legacy vga ioports\n");
   103				goto disable_pci;
   104			}
   105		}
   106	
   107		ret = qxl_device_init(qdev, pdev);
   108		if (ret)
   109			goto put_vga;
   110	
   111		ret = qxl_modeset_init(qdev);
   112		if (ret)
   113			goto unload;
   114	
   115		drm_kms_helper_poll_init(&qdev->ddev);
   116	
   117		/* Complete initialization. */
   118		ret = drm_dev_register(&qdev->ddev, ent->driver_data);
   119		if (ret)
   120			goto modeset_cleanup;
   121	
   122		drm_fbdev_generic_setup(&qdev->ddev, 32);
 > 123		if (qdev->fb_helper)
   124			qdev->fb_helper->no_dpms_blank = true;
   125	
   126		return 0;
   127	
   128	modeset_cleanup:
   129		qxl_modeset_fini(qdev);
   130	unload:
   131		qxl_device_fini(qdev);
   132	put_vga:
   133		if (is_vga(pdev) && pdev->revision < 5)
   134			vga_put(pdev, VGA_RSRC_LEGACY_IO);
   135	disable_pci:
   136		pci_disable_device(pdev);
   137	
   138		return ret;
   139	}
   140	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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