[ammarfaizi2-block:google/android/kernel/common/android-4.14-q 1/1] drivers/usb/gadget/function/f_accessory.c:1008:5: warning: no previous declaration for 'acc_ctrlrequest_composite'

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-4.14-q
head:   6e193ecd7a65f41aabc219c33deccd3152fde14c
commit: 6e193ecd7a65f41aabc219c33deccd3152fde14c [1/1] ANDROID: usb: f_accessory: Check buffer size when initialised via composite
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230124/202301240453.JfRh7ner-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
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/ammarfaizi2/linux-block/commit/6e193ecd7a65f41aabc219c33deccd3152fde14c
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-4.14-q
        git checkout 6e193ecd7a65f41aabc219c33deccd3152fde14c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/usb/

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/gadget/function/f_accessory.c:897:5: warning: no previous declaration for 'acc_ctrlrequest' [-Wmissing-declarations]
    int acc_ctrlrequest(struct usb_composite_dev *cdev,
        ^~~~~~~~~~~~~~~
>> drivers/usb/gadget/function/f_accessory.c:1008:5: warning: no previous declaration for 'acc_ctrlrequest_composite' [-Wmissing-declarations]
    int acc_ctrlrequest_composite(struct usb_composite_dev *cdev,
        ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/usb/gadget/function/f_accessory.c:1335:6: warning: no previous declaration for 'acc_disconnect' [-Wmissing-declarations]
    void acc_disconnect(void)
         ^~~~~~~~~~~~~~
   drivers/usb/gadget/function/f_accessory.c:1440:5: warning: no previous declaration for 'acc_ctrlrequest_configfs' [-Wmissing-declarations]
    int acc_ctrlrequest_configfs(struct usb_function *f,
        ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/acc_ctrlrequest_composite +1008 drivers/usb/gadget/function/f_accessory.c

  1007	
> 1008	int acc_ctrlrequest_composite(struct usb_composite_dev *cdev,
  1009				      const struct usb_ctrlrequest *ctrl)
  1010	{
  1011		u16 w_length = le16_to_cpu(ctrl->wLength);
  1012	
  1013		if (w_length > USB_COMP_EP0_BUFSIZ) {
  1014			if (ctrl->bRequestType & USB_DIR_IN) {
  1015				/* Cast away the const, we are going to overwrite on purpose. */
  1016				__le16 *temp = (__le16 *)&ctrl->wLength;
  1017	
  1018				*temp = cpu_to_le16(USB_COMP_EP0_BUFSIZ);
  1019				w_length = USB_COMP_EP0_BUFSIZ;
  1020			} else {
  1021				return -EINVAL;
  1022			}
  1023		}
  1024		return acc_ctrlrequest(cdev, ctrl);
  1025	}
  1026	EXPORT_SYMBOL_GPL(acc_ctrlrequest_composite);
  1027	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests