tree: git://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp.git lr/ariel head: 551dcc39c19e9fe56fe48a92ae52f31367ed8dd0 commit: b1253e8c01a0f0af5548c2b27fd64905ee46cfa2 [34/41] drm/armada: Use non-componentized bridges config: arm-randconfig-r005-20200617 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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 git checkout b1253e8c01a0f0af5548c2b27fd64905ee46cfa2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/gpu/drm/armada/armada_drv.c: In function 'armada_drm_attach_bridge': 133 | bridge = of_drm_find_bridge(np); | ^~~~~~~~~~~~~~~~~~ 133 | bridge = of_drm_find_bridge(np); | ^ 134 | printk ("XXX XX %08x %pOFfcFn", bridge, np); | ~~~^ ~~~~~~ | | | | unsigned int struct drm_bridge * 144 | ret = drm_bridge_attach(encoder, bridge, NULL, 0); | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/of_drm_find_bridge +133 drivers/gpu/drm/armada/armada_drv.c 122 123 static int armada_drm_attach_bridge(struct drm_device *drm, struct device_node *np) 124 { 125 struct drm_encoder *encoder; 126 struct drm_bridge *bridge; 127 int ret; 128 129 encoder = devm_kzalloc(drm->dev, sizeof(*encoder), GFP_KERNEL); 130 if (encoder == NULL) 131 return -ENOMEM; 132 135 if (!bridge) 136 return -EINVAL; 137 138 encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, np); 139 ret = drm_encoder_init(drm, encoder, &armada_drm_encoder_funcs, 140 DRM_MODE_ENCODER_TMDS, NULL); 141 if (ret) 142 return ret; 143 145 if (ret) 146 drm_encoder_cleanup(encoder); 147 148 return ret; 149 } 150 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org