Hi John,

I love your patch! Yet something to improve:

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on v5.4-rc6 next-20191108]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/John-Stultz/dwc3-prereqs-for-HiKey960-USB-support/20191110-002446
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: arm-exynos_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

   drivers/usb/dwc3/drd.c: In function 'dwc3_drd_init':
>> drivers/usb/dwc3/drd.c:556:36: error: expected expression before ';' token
      ret = dwc3_setup_role_switch(dwc);
                                       ^

vim +556 drivers/usb/dwc3/drd.c

   545	
   546	int dwc3_drd_init(struct dwc3 *dwc)
   547	{
   548		int ret, irq;
   549	
   550		dwc->edev = dwc3_get_extcon(dwc);
   551		if (IS_ERR(dwc->edev))
   552			return PTR_ERR(dwc->edev);
   553	
   554		if (ROLE_SWITCH &&
   555		    device_property_read_bool(dwc->dev, "usb-role-switch")) {
 > 556			ret = dwc3_setup_role_switch(dwc);
   557			if (ret < 0)
   558				return ret;
   559		} else if (dwc->edev) {
   560			dwc->edev_nb.notifier_call = dwc3_drd_notifier;
   561			ret = extcon_register_notifier(dwc->edev, EXTCON_USB_HOST,
   562						       &dwc->edev_nb);
   563			if (ret < 0) {
   564				dev_err(dwc->dev, "couldn't register cable notifier\n");
   565				return ret;
   566			}
   567	
   568			dwc3_drd_update(dwc);
   569		} else {
   570			dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_OTG);
   571			dwc->current_dr_role = DWC3_GCTL_PRTCAP_OTG;
   572	
   573			/* use OTG block to get ID event */
   574			irq = dwc3_otg_get_irq(dwc);
   575			if (irq < 0)
   576				return irq;
   577	
   578			dwc->otg_irq = irq;
   579	
   580			/* disable all OTG IRQs */
   581			dwc3_otg_disable_events(dwc, DWC3_OTG_ALL_EVENTS);
   582			/* clear all events */
   583			dwc3_otg_clear_events(dwc);
   584	
   585			ret = request_threaded_irq(dwc->otg_irq, dwc3_otg_irq,
   586						   dwc3_otg_thread_irq,
   587						   IRQF_SHARED, "dwc3-otg", dwc);
   588			if (ret) {
   589				dev_err(dwc->dev, "failed to request irq #%d --> %d\n",
   590					dwc->otg_irq, ret);
   591				ret = -ENODEV;
   592				return ret;
   593			}
   594	
   595			dwc3_otg_init(dwc);
   596			dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
   597		}
   598	
   599		return 0;
   600	}
   601	

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0-DAY kernel test infrastructure                 Open Source Technology Center
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