Hi Kai-Heng, Thank you for the patch! Yet something to improve: [auto build test ERROR on sound/for-next] [also build test ERROR on v5.9 next-20201023] [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] url: https://github.com/0day-ci/linux/commits/Kai-Heng-Feng/ALSA-hda-Refactor-codec-PM-to-use-direct-complete-optimization/20201023-182616 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next config: x86_64-randconfig-a016-20201023 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 147b9497e79a98a8614b2b5eb4ba653b44f6b6f0) 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 # https://github.com/0day-ci/linux/commit/8add6f1976839b15db076e618d38e3634e86c0b0 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kai-Heng-Feng/ALSA-hda-Refactor-codec-PM-to-use-direct-complete-optimization/20201023-182616 git checkout 8add6f1976839b15db076e618d38e3634e86c0b0 # 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@xxxxxxxxx> All errors (new ones prefixed by >>): >> sound/pci/hda/hda_intel.c:1151:13: error: use of undeclared identifier 'azx_prepare' .prepare = azx_prepare, ^ 1 error generated. vim +/azx_prepare +1151 sound/pci/hda/hda_intel.c 1149 1150 static const struct dev_pm_ops azx_pm = { > 1151 .prepare = azx_prepare, 1152 SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume) 1153 #ifdef CONFIG_PM_SLEEP 1154 .freeze_noirq = azx_freeze_noirq, 1155 .thaw_noirq = azx_thaw_noirq, 1156 #endif 1157 SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle) 1158 }; 1159 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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