tree: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next head: 91e99e11392937546a94110b14bc155f9cbad0eb commit: 91e99e11392937546a94110b14bc155f9cbad0eb [9/9] drm/vc4: hdmi: Register HDMI codec config: x86_64-randconfig-a002-20210622 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project b259740801d3515810ecc15bf0c24b0d476a1608) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git remote add drm-drm-misc git://anongit.freedesktop.org/drm/drm-misc git fetch --no-tags drm-drm-misc drm-misc-next git checkout 91e99e11392937546a94110b14bc155f9cbad0eb # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): static const struct snd_soc_component_driver vc4_hdmi_audio_component_drv = { ^ 1 warning generated. vim +/vc4_hdmi_audio_component_drv +1407 drivers/gpu/drm/vc4/vc4_hdmi.c bb7d78568814a3 Eric Anholt 2017-02-27 1406 635b1c185ee9ca Kuninori Morimoto 2018-01-29 @1407 static const struct snd_soc_component_driver vc4_hdmi_audio_component_drv = { a3a0ded3ed38f4 Maxime Ripard 2020-07-08 1408 .name = "vc4-hdmi-codec-dai-component", bb7d78568814a3 Eric Anholt 2017-02-27 1409 .dapm_widgets = vc4_hdmi_audio_widgets, bb7d78568814a3 Eric Anholt 2017-02-27 1410 .num_dapm_widgets = ARRAY_SIZE(vc4_hdmi_audio_widgets), bb7d78568814a3 Eric Anholt 2017-02-27 1411 .dapm_routes = vc4_hdmi_audio_routes, bb7d78568814a3 Eric Anholt 2017-02-27 1412 .num_dapm_routes = ARRAY_SIZE(vc4_hdmi_audio_routes), 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1413 .idle_bias_on = 1, 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1414 .use_pmdown_time = 1, 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1415 .endianness = 1, 635b1c185ee9ca Kuninori Morimoto 2018-01-29 1416 .non_legacy_dai_naming = 1, bb7d78568814a3 Eric Anholt 2017-02-27 1417 }; bb7d78568814a3 Eric Anholt 2017-02-27 1418 :::::: The code at line 1407 was first introduced by commit :::::: 635b1c185ee9cae61a740264d09095a7d20c019a ASoC: vc4_hdmi: replace codec to component :::::: TO: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org