Re: [PATCH] drm/qxl: unbind vgacon

[kbuild test robot <lkp@xxxxxxxxx>]

Hi Gerd,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.0-rc4 next-20190221]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Gerd-Hoffmann/drm-qxl-unbind-vgacon/20190222-030117
config: x86_64-randconfig-m2-02211051 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   ld: drivers/gpu/drm/qxl/qxl_drv.o: in function `qxl_pci_probe':
>> drivers/gpu/drm/qxl/qxl_drv.c:94: undefined reference to `dummy_con'
>> ld: drivers/gpu/drm/qxl/qxl_drv.c:94: undefined reference to `do_take_over_console'

vim +94 drivers/gpu/drm/qxl/qxl_drv.c

    61	
    62	static int
    63	qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
    64	{
    65		struct qxl_device *qdev;
    66		int ret;
    67	
    68		if (pdev->revision < 4) {
    69			DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
    70				  " use xf86-video-qxl in user mode");
    71			return -EINVAL; /* TODO: ENODEV ? */
    72		}
    73	
    74		qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
    75		if (!qdev)
    76			return -ENOMEM;
    77	
    78		ret = pci_enable_device(pdev);
    79		if (ret)
    80			goto free_dev;
    81	
    82		ret = qxl_device_init(qdev, &qxl_driver, pdev);
    83		if (ret)
    84			goto disable_pci;
    85	
    86		ret = qxl_modeset_init(qdev);
    87		if (ret)
    88			goto unload;
    89	
    90		drm_kms_helper_poll_init(&qdev->ddev);
    91	
    92		/* unbind vgacon to make sure it doesn't touch our vga registers */
    93		console_lock();
  > 94		ret = do_take_over_console(&dummy_con, 0, MAX_NR_CONSOLES - 1, true);
    95		console_unlock();
    96	
    97		/* Complete initialization. */
    98		ret = drm_dev_register(&qdev->ddev, ent->driver_data);
    99		if (ret)
   100			goto modeset_cleanup;
   101	
   102		return 0;
   103	
   104	modeset_cleanup:
   105		qxl_modeset_fini(qdev);
   106	unload:
   107		qxl_device_fini(qdev);
   108	disable_pci:
   109		pci_disable_device(pdev);
   110	free_dev:
   111		kfree(qdev);
   112		return ret;
   113	}
   114	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip

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