Hi Thomas, I love your patch! Yet something to improve: [auto build test ERROR on next-20200305] [cannot apply to rockchip/for-next shawnguo/for-next sunxi/sunxi/for-next tegra/for-next linus/master v5.6-rc4 v5.6-rc3 v5.6-rc2 v5.6-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-Convert-drivers-to-drm_simple_encoder_init/20200306-045931 base: 47466dcf84ee66a973ea7d2fca7e582fe9328932 config: mips-randconfig-a001-20200306 (attached as .config) compiler: mipsel-linux-gcc (GCC) 5.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=5.5.0 make.cross ARCH=mips If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/vkms/vkms_output.c: In function 'vkms_output_init': >> drivers/gpu/drm/vkms/vkms_output.c:70:8: error: implicit declaration of function 'drm_simple_encoder_init' [-Werror=implicit-function-declaration] ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_VIRTUAL); ^ cc1: some warnings being treated as errors vim +/drm_simple_encoder_init +70 drivers/gpu/drm/vkms/vkms_output.c 34 35 int vkms_output_init(struct vkms_device *vkmsdev, int index) 36 { 37 struct vkms_output *output = &vkmsdev->output; 38 struct drm_device *dev = &vkmsdev->drm; 39 struct drm_connector *connector = &output->connector; 40 struct drm_encoder *encoder = &output->encoder; 41 struct drm_crtc *crtc = &output->crtc; 42 struct drm_plane *primary, *cursor = NULL; 43 int ret; 44 45 primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index); 46 if (IS_ERR(primary)) 47 return PTR_ERR(primary); 48 49 if (enable_cursor) { 50 cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index); 51 if (IS_ERR(cursor)) { 52 ret = PTR_ERR(cursor); 53 goto err_cursor; 54 } 55 } 56 57 ret = vkms_crtc_init(dev, crtc, primary, cursor); 58 if (ret) 59 goto err_crtc; 60 61 ret = drm_connector_init(dev, connector, &vkms_connector_funcs, 62 DRM_MODE_CONNECTOR_VIRTUAL); 63 if (ret) { 64 DRM_ERROR("Failed to init connector\n"); 65 goto err_connector; 66 } 67 68 drm_connector_helper_add(connector, &vkms_conn_helper_funcs); 69 > 70 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_VIRTUAL); --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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