[linux-stable-rc:queue/5.19 22/33] drivers/usb/dwc3/dwc3-qcom.c:313:25: warning: variable 'hcd' set but not used
From: kernel test robot
Date: Fri Sep 23 2022 - 15:45:13 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.19
head: 9888f771c3a964ede02767e7e913ede0d1d44f0e
commit: f5bcd98c2411532e84a225f26b235a1cdd2cb9c7 [22/33] usb: dwc3: qcom: fix peripheral and OTG suspend
config: csky-randconfig-r021-20220924 (https://download.01.org/0day-ci/archive/20220924/202209240308.kzupccnl-lkp@xxxxxxxxx/config)
compiler: csky-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/stable/linux-stable-rc.git/commit/?id=f5bcd98c2411532e84a225f26b235a1cdd2cb9c7
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc queue/5.19
git checkout f5bcd98c2411532e84a225f26b235a1cdd2cb9c7
# 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=csky 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
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