Hi Sven, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0bddd227f3dc55975e2b8dfa7fc6f959b062a2c7 commit: 52e8a94baf9026276fcdc9ff21a50dc2ca0bc94b ASoC: Add initial ZL38060 driver date: 3 months ago config: x86_64-randconfig-r004-20200709 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 02946de3802d3bc65bc9f2eb9b8d4969b5a7add8) 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 52e8a94baf9026276fcdc9ff21a50dc2ca0bc94b # 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 All warnings (new ones prefixed by >>): >> sound/soc/codecs/zl38060.c:614:34: warning: unused variable 'zl38_dt_ids' [-Wunused-const-variable] static const struct of_device_id zl38_dt_ids[] = { ^ 1 warning generated. vim +/zl38_dt_ids +614 sound/soc/codecs/zl38060.c 613 > 614 static const struct of_device_id zl38_dt_ids[] = { 615 { .compatible = "mscc,zl38060", }, 616 { /* sentinel */ } 617 }; 618 MODULE_DEVICE_TABLE(of, zl38_dt_ids); 619 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org