Hi Zijun,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bluetooth-next/master]
[also build test ERROR on linus/master v5.14-rc4 next-20210804]
[cannot apply to bluetooth/master linux/master]
[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]

url:    https://github.com/0day-ci/linux/commits/Zijun-Hu/Bluetooth-btusb-Add-support-different-nvm-to-distinguish-different-factory-for-WCN6855-controller/20210805-164035
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: hexagon-randconfig-r004-20210805 (attached as .config)
compiler: clang version 12.0.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/7af6ba1121380c4ee146896c833b7ecb7716d82e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Zijun-Hu/Bluetooth-btusb-Add-support-different-nvm-to-distinguish-different-factory-for-WCN6855-controller/20210805-164035
        git checkout 7af6ba1121380c4ee146896c833b7ecb7716d82e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=hexagon 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/bluetooth/btusb.c:4391:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
   }
   ^
>> drivers/bluetooth/btusb.c:4404:33: error: incompatible pointer types passing 'char (*)[64]' to parameter of type 'char **' [-Werror,-Wincompatible-pointer-types]
                   btusb_setup_qca_form_nvm_name(&fwname, sizeof(fwname), ver, "gf");
                                                 ^~~~~~~
   drivers/bluetooth/btusb.c:4357:49: note: passing argument to parameter 'fwname' here
   static int btusb_setup_qca_form_nvm_name(char **fwname,
                                                   ^
   drivers/bluetooth/btusb.c:4407:33: error: incompatible pointer types passing 'char (*)[64]' to parameter of type 'char **' [-Werror,-Wincompatible-pointer-types]
                   btusb_setup_qca_form_nvm_name(&fwname, sizeof(fwname), ver, NULL);
                                                 ^~~~~~~
   drivers/bluetooth/btusb.c:4357:49: note: passing argument to parameter 'fwname' here
   static int btusb_setup_qca_form_nvm_name(char **fwname,
                                                   ^
   3 errors generated.


vim +4391 drivers/bluetooth/btusb.c

  4356	
  4357	static int btusb_setup_qca_form_nvm_name(char **fwname,
  4358						int max_size,
  4359						struct qca_version *ver,
  4360						char *factory)
  4361	{
  4362		if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
  4363			/* if boardid equal 0, use default nvm without suffix */
  4364			if (le16_to_cpu(ver->board_id) == 0x0) {
  4365				/* we add suffix factory to distinguish with different factory. */
  4366				if (factory != NULL) {
  4367					snprintf(*fwname, max_size, "qca/nvm_usb_%08x_%s.bin",
  4368						 le32_to_cpu(ver->rom_version),
  4369						 factory);
  4370				} else {
  4371					snprintf(*fwname, max_size, "qca/nvm_usb_%08x.bin",
  4372						 le32_to_cpu(ver->rom_version));
  4373				}
  4374			} else {
  4375				if (factory != NULL) {
  4376					snprintf(*fwname, max_size, "qca/nvm_usb_%08x_%s_%04x.bin",
  4377						le32_to_cpu(ver->rom_version),
  4378						factory,
  4379						le16_to_cpu(ver->board_id));
  4380				} else {
  4381					snprintf(*fwname, max_size, "qca/nvm_usb_%08x_%04x.bin",
  4382						le32_to_cpu(ver->rom_version),
  4383						le16_to_cpu(ver->board_id));
  4384				}
  4385			}
  4386		} else {
  4387			snprintf(*fwname, max_size, "qca/nvm_usb_%08x.bin",
  4388				 le32_to_cpu(ver->rom_version));
  4389		}
  4390	
> 4391	}
  4392	
  4393	static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
  4394					    struct qca_version *ver,
  4395					    const struct qca_device_info *info)
  4396	{
  4397		const struct firmware *fw;
  4398		char fwname[64];
  4399		int err;
  4400	
  4401		switch (ver->ram_version) {
  4402		case WCN6855_2_0_RAM_VERSION_GF:
  4403		case WCN6855_2_1_RAM_VERSION_GF:
> 4404			btusb_setup_qca_form_nvm_name(&fwname, sizeof(fwname), ver, "gf");
  4405			break;
  4406		default:
  4407			btusb_setup_qca_form_nvm_name(&fwname, sizeof(fwname), ver, NULL);
  4408		}
  4409	
  4410		err = request_firmware(&fw, fwname, &hdev->dev);
  4411		if (err) {
  4412			bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
  4413				   fwname, err);
  4414			return err;
  4415		}
  4416	
  4417		bt_dev_info(hdev, "using NVM file: %s", fwname);
  4418	
  4419		err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
  4420	
  4421		release_firmware(fw);
  4422	
  4423		return err;
  4424	}
  4425	

---
0-DAY CI Kernel Test Service, Intel Corporation
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