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-20220706] [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: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220707/202207071739.NIPiY4NM-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # 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 make W=1 O=build_dir ARCH=i386 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:742:35: warning: 'es8326_i2c_id' defined but not used [-Wunused-const-variable=] 742 | static const struct i2c_device_id es8326_i2c_id[] = { | ^~~~~~~~~~~~~ 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