Hi Puma,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on usb/usb-next usb/usb-linus linus/master v6.1 next-20221214]
[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/Puma-Hsu/add-vendor-hooks-for-usb-suspend-and-resume/20221214-150942
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20221214070650.703793-2-pumahsu%40google.com
patch subject: [PATCH 1/2] usb: core: add vendor hook for usb suspend and resume
config: i386-randconfig-a001
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/c37166c62c494c4e2b7ebbb0a920a47a41a4500a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Puma-Hsu/add-vendor-hooks-for-usb-suspend-and-resume/20221214-150942
        git checkout c37166c62c494c4e2b7ebbb0a920a47a41a4500a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/usb/core/

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

All warnings (new ones prefixed by >>):

>> drivers/usb/core/driver.c:40:5: warning: no previous prototype for 'usb_dev_register_vendor_ops' [-Wmissing-prototypes]
      40 | int usb_dev_register_vendor_ops(struct usb_device_vendor_ops *vendor_ops)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/core/driver.c:50:31: warning: no previous prototype for 'usb_vendor_get_ops' [-Wmissing-prototypes]
      50 | struct usb_device_vendor_ops *usb_vendor_get_ops(void)
         |                               ^~~~~~~~~~~~~~~~~~


vim +/usb_dev_register_vendor_ops +40 drivers/usb/core/driver.c

    39	
  > 40	int usb_dev_register_vendor_ops(struct usb_device_vendor_ops *vendor_ops)
    41	{
    42		if (vendor_ops == NULL)
    43			return -EINVAL;
    44	
    45		usb_dev_vendor_ops = vendor_ops;
    46		return 0;
    47	}
    48	EXPORT_SYMBOL_GPL(usb_dev_register_vendor_ops);
    49	
  > 50	struct usb_device_vendor_ops *usb_vendor_get_ops(void)
    51	{
    52		return usb_dev_vendor_ops;
    53	}
    54	EXPORT_SYMBOL_GPL(usb_vendor_get_ops);
    55	
    56	

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