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... 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/4b1a07505589e5f12ae52f249fa93b400... 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(a)intel.com&gt; All errors (new ones prefixed by >>): 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); 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