Hi Keyon, FYI, the error/warning still remains. tree: https://github.com/intel/linux-intel-lts.git 5.4/preempt-rt head: e00ce2dbe204df8675b04a820f6a4e6fc0f784b1 commit: dd0a11b4604af8ca61e1e578409c61227dccc3ae [1346/11140] ASoC: SOF: token: add tokens for PCM compatible with D0i3 substate config: x86_64-randconfig-a014-20200916 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9e3842d60351f986d77dfe0a94f76e4fd895f188) 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 checkout dd0a11b4604af8ca61e1e578409c61227dccc3ae # 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 sof_topology_token stream_tokens[] = { ^ 1 warning generated. # https://github.com/intel/linux-intel-lts/commit/dd0a11b4604af8ca61e1e5784... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/preempt-rt git checkout dd0a11b4604af8ca61e1e578409c61227dccc3ae vim +/stream_tokens +729 sound/soc/sof/topology.c 727 728 /* PCM */ 730 {SOF_TKN_STREAM_PLAYBACK_COMPATIBLE_D0I3, 731 SND_SOC_TPLG_TUPLE_TYPE_BOOL, get_token_u16, 732 offsetof(struct snd_sof_pcm, stream[0].d0i3_compatible), 0}, 733 {SOF_TKN_STREAM_CAPTURE_COMPATIBLE_D0I3, 734 SND_SOC_TPLG_TUPLE_TYPE_BOOL, get_token_u16, 735 offsetof(struct snd_sof_pcm, stream[1].d0i3_compatible), 0}, 736 }; 737 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org