Hi Thomas, I love your patch! Yet something to improve: [auto build test ERROR on next-20200305] [also build test ERROR on v5.6-rc4] [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] [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: x86_64-randconfig-h002-20200307 (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 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/i2c/tda998x_drv.c: In function 'tda998x_encoder_init': >> drivers/gpu/drm/i2c/tda998x_drv.c:2018:8: error: implicit declaration of function 'drm_simple_encoder_init'; did you mean 'drm_encoder_init'? [-Werror=implicit-function-declaration] ret = drm_simple_encoder_init(drm, &priv->encoder, ^~~~~~~~~~~~~~~~~~~~~~~ drm_encoder_init cc1: some warnings being treated as errors vim +2018 drivers/gpu/drm/i2c/tda998x_drv.c 2000 2001 static int tda998x_encoder_init(struct device *dev, struct drm_device *drm) 2002 { 2003 struct tda998x_priv *priv = dev_get_drvdata(dev); 2004 u32 crtcs = 0; 2005 int ret; 2006 2007 if (dev->of_node) 2008 crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); 2009 2010 /* If no CRTCs were found, fall back to our old behaviour */ 2011 if (crtcs == 0) { 2012 dev_warn(dev, "Falling back to first CRTC\n"); 2013 crtcs = 1 << 0; 2014 } 2015 2016 priv->encoder.possible_crtcs = crtcs; 2017 > 2018 ret = drm_simple_encoder_init(drm, &priv->encoder, 2019 DRM_MODE_ENCODER_TMDS); 2020 if (ret) 2021 goto err_encoder; 2022 2023 ret = drm_bridge_attach(&priv->encoder, &priv->bridge, NULL, 0); 2024 if (ret) 2025 goto err_bridge; 2026 2027 return 0; 2028 2029 err_bridge: 2030 drm_encoder_cleanup(&priv->encoder); 2031 err_encoder: 2032 return ret; 2033 } 2034 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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