Hi Zhu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on broonie-sound/for-next] [also build test WARNING on tiwai-sound/for-next linus/master v5.19-rc5 next-20220707] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Zhu-Ning/ASoC-codecs-add-support-for-ES8326/20220707-115006 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next config: arm64-buildonly-randconfig-r006-20220707 (https://download.01.org/0day-ci/archive/20220708/202207080557.twGXw3yY-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 66ae1d60bb278793fd651cece264699d522bab84) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/fda793f4ec55b33955344b93a8c290fe207d54d4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Zhu-Ning/ASoC-codecs-add-support-for-ES8326/20220707-115006 git checkout fda793f4ec55b33955344b93a8c290fe207d54d4 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash sound/soc/codecs/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): sound/soc/codecs/es8326.c:612:13: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] if((reg && ES8326_VERSION_B) == 1) ^ sound/soc/codecs/es8326.h:185:29: note: expanded from macro 'ES8326_VERSION_B' #define ES8326_VERSION_B (1 << 0) ^ >> sound/soc/codecs/es8326.c:742:35: warning: unused variable 'es8326_i2c_id' [-Wunused-const-variable] static const struct i2c_device_id es8326_i2c_id[] = { ^ 2 warnings generated. vim +/es8326_i2c_id +742 sound/soc/codecs/es8326.c 741 > 742 static const struct i2c_device_id es8326_i2c_id[] = { 743 {"es8326", 0 }, 744 {} 745 }; 746 MODULE_DEVICE_TABLE(i2c, es8326_i2c_id); 747 -- 0-DAY CI Kernel Test Service https://01.org/lkp
