Hi Xingyu, kernel test robot noticed the following build warnings: [auto build test WARNING on broonie-sound/for-next] [also build test WARNING on robh/for-next linus/master v6.7-rc6 next-20231222] [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/Xingyu-Wu/dt-bindings-ASoC-Add-Cadence-I2S-controller-for-StarFive-JH8100-SoC/20231222-172628 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next patch link: https://lore.kernel.org/r/20231221033223.73201-3-xingyu.wu%40starfivetech.com patch subject: [PATCH v1 2/2] ASoC: starfive: Add drivers of Cadence Multi-Channel I2S Controller config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20231223/202312230525.gch9VlZT-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231223/202312230525.gch9VlZT-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312230525.gch9VlZT-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> sound/soc/starfive/cdns-jh8100-i2s.c:519:12: warning: 'cdns_jh8100_i2s_runtime_resume' defined but not used [-Wunused-function] 519 | static int cdns_jh8100_i2s_runtime_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/cdns_jh8100_i2s_runtime_resume +519 sound/soc/starfive/cdns-jh8100-i2s.c 518 > 519 static int cdns_jh8100_i2s_runtime_resume(struct device *dev) 520 { 521 struct cdns_jh8100_i2s_dev *i2s = dev_get_drvdata(dev); 522 523 return clk_prepare_enable(i2s->clks[1].clk); /* ICG clock */ 524 } 525 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki