Hi Syed, kernel test robot noticed the following build warnings: [auto build test WARNING on broonie-sound/for-next] [also build test WARNING on linus/master v6.4-rc7 next-20230622] [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/Syed-Saba-Kareem/ASoC-amd-acp-remove-acp-poweroff-function/20230622-233145 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next patch link: https://lore.kernel.org/r/20230622152406.3709231-7-Syed.SabaKareem%40amd.com patch subject: [PATCH 04/12] ASoC: amd: acp: add acp i2s master clock generation for rembrandt platform config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20230623/202306230648.6X3y3ujR-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230623/202306230648.6X3y3ujR-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/202306230648.6X3y3ujR-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> sound/soc/amd/acp/acp-rembrandt.c:169:5: warning: no previous prototype for 'acp6x_master_clock_generate' [-Wmissing-prototypes] 169 | int acp6x_master_clock_generate(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/acp6x_master_clock_generate +169 sound/soc/amd/acp/acp-rembrandt.c 168 > 169 int acp6x_master_clock_generate(struct device *dev) 170 { 171 int data = 0; 172 struct pci_dev *smn_dev; 173 174 smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, HOST_BRIDGE_ID, NULL); 175 if (!smn_dev) { 176 dev_err(dev, "Failed to get host bridge device\n"); 177 return -ENODEV; 178 } 179 180 smn_write(smn_dev, MP1_C2PMSG_93, 0); 181 smn_write(smn_dev, MP1_C2PMSG_85, 0xC4); 182 smn_write(smn_dev, MP1_C2PMSG_69, 0x4); 183 read_poll_timeout(smn_read, data, data, DELAY_US, 184 ACP_TIMEOUT, false, smn_dev, MP1_C2PMSG_93); 185 return 0; 186 } 187 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
