[usb:usb-linus 9/18] drivers/usb/dwc3/dwc3-qcom.c:313:25: warning: variable 'hcd' set but not used

[kernel test robot <lkp@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-linus
head:   aece382251f8fa660d8f621a7f50b0ea0f390178
commit: c5f14abeb52b0177b940fd734133d383da3521d8 [9/18] usb: dwc3: qcom: fix peripheral and OTG suspend
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220819/202208190411.1lugjsYz-lkp@xxxxxxxxx/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
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://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?id=c5f14abeb52b0177b940fd734133d383da3521d8
        git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
        git fetch --no-tags usb usb-linus
        git checkout c5f14abeb52b0177b940fd734133d383da3521d8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/usb/dwc3/

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

All warnings (new ones prefixed by >>):

   drivers/usb/dwc3/dwc3-qcom.c: In function 'dwc3_qcom_read_usb2_speed':
>> drivers/usb/dwc3/dwc3-qcom.c:313:25: warning: variable 'hcd' set but not used [-Wunused-but-set-variable]
     313 |         struct usb_hcd *hcd;
         |                         ^~~


vim +/hcd +313 drivers/usb/dwc3/dwc3-qcom.c

   308	
   309	static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom)
   310	{
   311		struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
   312		struct usb_device *udev;
 > 313		struct usb_hcd *hcd;
   314	
   315		/*
   316		 * FIXME: Fix this layering violation.
   317		 */
   318		hcd = platform_get_drvdata(dwc->xhci);
   319	
   320		/*
   321		 * It is possible to query the speed of all children of
   322		 * USB2.0 root hub via usb_hub_for_each_child(). DWC3 code
   323		 * currently supports only 1 port per controller. So
   324		 * this is sufficient.
   325		 */
   326	#ifdef CONFIG_USB
   327		udev = usb_hub_find_child(hcd->self.root_hub, 1);
   328	#else
   329		udev = NULL;
   330	#endif
   331		if (!udev)
   332			return USB_SPEED_UNKNOWN;
   333	
   334		return udev->speed;
   335	}
   336	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp