Re: [PATCH v1 3/3] Bluetooth: btqca: Add QCA6698 support

[kernel test robot]

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	

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