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: sparc64-randconfig-r071-20231223 (https://download.01.org/0day-ci/archive/20231223/202312231911.DFYqQ9Gl-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231223/202312231911.DFYqQ9Gl-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/202312231911.DFYqQ9Gl-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from sound/soc/starfive/cdns-jh8100-i2s.c:18: >> sound/soc/starfive/cdns-jh8100-i2s.h:163:6: warning: no previous prototype for 'cdns_jh8100_i2s_pcm_push_tx' [-Wmissing-prototypes] 163 | void cdns_jh8100_i2s_pcm_push_tx(struct cdns_jh8100_i2s_dev *dev) { } | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ >> sound/soc/starfive/cdns-jh8100-i2s.h:164:6: warning: no previous prototype for 'cdns_jh8100_i2s_pcm_pop_rx' [-Wmissing-prototypes] 164 | void cdns_jh8100_i2s_pcm_pop_rx(struct cdns_jh8100_i2s_dev *dev) { } | ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> sound/soc/starfive/cdns-jh8100-i2s.h:165:5: warning: no previous prototype for 'cdns_jh8100_i2s_pcm_register' [-Wmissing-prototypes] 165 | int cdns_jh8100_i2s_pcm_register(struct platform_device *pdev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/cdns_jh8100_i2s_pcm_push_tx +163 sound/soc/starfive/cdns-jh8100-i2s.h 157 158 #if IS_ENABLED(CONFIG_SND_SOC_JH8100_CADENCE_I2S_PCM) 159 void cdns_jh8100_i2s_pcm_push_tx(struct cdns_jh8100_i2s_dev *dev); 160 void cdns_jh8100_i2s_pcm_pop_rx(struct cdns_jh8100_i2s_dev *dev); 161 int cdns_jh8100_i2s_pcm_register(struct platform_device *pdev); 162 #else > 163 void cdns_jh8100_i2s_pcm_push_tx(struct cdns_jh8100_i2s_dev *dev) { } > 164 void cdns_jh8100_i2s_pcm_pop_rx(struct cdns_jh8100_i2s_dev *dev) { } > 165 int cdns_jh8100_i2s_pcm_register(struct platform_device *pdev) 166 { 167 return -EINVAL; 168 } 169 #endif 170 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
