Hi Maxime, I love your patch! Perhaps something to improve: [auto build test WARNING on sound/for-next] [also build test WARNING on asoc/for-next v5.12 next-20210507] [cannot apply to anholt/for-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/Maxime-Ripard/drm-vc4-hdmi-Enable-Channel-Mapping-IEC958-HBR-Passthrough-using-hdmi-codec/20210507-220646 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next config: arm-randconfig-r025-20210506 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a3a8a1a15b524d91b5308db68e9d293b34cd88dd) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/d13a5df3b724ff8c7e1a4a6a76e9903c26650674 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Maxime-Ripard/drm-vc4-hdmi-Enable-Channel-Mapping-IEC958-HBR-Passthrough-using-hdmi-codec/20210507-220646 git checkout d13a5df3b724ff8c7e1a4a6a76e9903c26650674 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/vc4/vc4_hdmi.c:1240:46: warning: unused variable 'vc4_hdmi_audio_component_drv' [-Wunused-const-variable] static const struct snd_soc_component_driver vc4_hdmi_audio_component_drv = { ^ 1 warning generated. vim +/vc4_hdmi_audio_component_drv +1240 drivers/gpu/drm/vc4/vc4_hdmi.c bb7d78568814a3 Eric Anholt 2017-02-27 1239 635b1c185ee9ca Kuninori Morimoto 2018-01-29 @1240 static const struct snd_soc_component_driver vc4_hdmi_audio_component_drv = { a3a0ded3ed38f4 Maxime Ripard 2020-07-08 1241 .name = "vc4-hdmi-codec-dai-component", bb7d78568814a3 Eric Anholt 2017-02-27 1242 .dapm_widgets = vc4_hdmi_audio_widgets, bb7d78568814a3 Eric Anholt 2017-02-27 1243 .num_dapm_widgets = ARRAY_SIZE(vc4_hdmi_audio_widgets), bb7d78568814a3 Eric Anholt 2017-02-27 1244 .dapm_routes = vc4_hdmi_audio_routes, bb7d78568814a3 Eric Anholt 2017-02-27 1245 .num_dapm_routes = ARRAY_SIZE(vc4_hdmi_audio_routes), 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1246 .idle_bias_on = 1, 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1247 .use_pmdown_time = 1, 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1248 .endianness = 1, 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1249 .non_legacy_dai_naming = 1, bb7d78568814a3 Eric Anholt 2017-02-27 1250 }; bb7d78568814a3 Eric Anholt 2017-02-27 1251 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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