Hi Johan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on rockchip/for-next] [also build test WARNING on robh/for-next asoc/for-next sound/for-next v5.10-rc4 next-20201117] [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/Johan-Jonker/Enable-rk3066a-HDMI... base: https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next config: nios2-allyesconfig (attached as .config) compiler: nios2-linux-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 # https://github.com/0day-ci/linux/commit/4fd170243d9bc7618270dff969e138b05... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Johan-Jonker/Enable-rk3066a-HDMI-sound/20201118-034916 git checkout 4fd170243d9bc7618270dff969e138b05db0f945 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/rockchip/rk3066_hdmi.c: In function 'rk3066_hdmi_config_aai': 227 | struct hdmi_audio_infoframe *faudio; | ^~~~~~ vim +/faudio +227 drivers/gpu/drm/rockchip/rk3066_hdmi.c 223 224 static int rk3066_hdmi_config_aai(struct rk3066_hdmi *hdmi, 225 struct audio_info *audio) 226 { 228 union hdmi_infoframe frame; 229 int rc; 230 231 rc = hdmi_audio_infoframe_init(&frame.audio); 232 faudio = (struct hdmi_audio_infoframe *)&frame; 233 234 return rk3066_hdmi_upload_frame(hdmi, rc, &frame, 235 HDMI_INFOFRAME_AAI, 0, 0, 0); 236 } 237 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org