Hi Cheng, kernel test robot noticed the following build warnings: [auto build test WARNING on f486c8aa16b8172f63bddc70116a0c897a7f3f02] url: https://github.com/intel-lab-lkp/linux/commits/Cheng-Jiang/arm64-dts-qcom-sa8775p-ride-Change-the-BT-node/20241128-201156 base: f486c8aa16b8172f63bddc70116a0c897a7f3f02 patch link: https://lore.kernel.org/r/20241128120922.3518582-4-quic_chejiang%40quicinc.com patch subject: [PATCH v1 3/3] Bluetooth: btqca: Add QCA6698 support config: arc-randconfig-002-20241129 (https://download.01.org/0day-ci/archive/20241129/202411290858.nBlfcX9C-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241129/202411290858.nBlfcX9C-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/202411290858.nBlfcX9C-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/bluetooth/btqca.c:703:5: warning: no previous prototype for 'qca_check_firmware_exists' [-Wmissing-prototypes] 703 | int qca_check_firmware_exists(const char *name, struct hci_dev *hdev) | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/qca_check_firmware_exists +703 drivers/bluetooth/btqca.c 702 > 703 int qca_check_firmware_exists(const char *name, struct hci_dev *hdev) 704 { 705 const struct firmware *fw; 706 int ret; 707 708 ret = firmware_request_nowarn(&fw, name, &hdev->dev); 709 if (ret) { 710 bt_dev_warn(hdev, "Firmware %s does not exist. Use default", name); 711 return 0; 712 } 713 714 release_firmware(fw); 715 return 1; 716 } 717 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
