Re: [PATCH v2 6/9] usb: dwc3: qcom: fix peripheral and OTG suspend

[Johan Hovold <johan@kernel.org>]

On Fri, Aug 05, 2022 at 05:38:30AM +0800, kernel test robot wrote:
> Hi Johan,
> 
> I love your patch! Perhaps something to improve:
> 
> [auto build test WARNING on usb/usb-testing]
> [also build test WARNING on linus/master next-20220804]
> [cannot apply to robh/for-next v5.19]
> [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/Johan-Hovold/usb-dwc3-qcom-fix-wakeup-implementation/20220804-231122
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
> config: arc-randconfig-r002-20220804 (https://download.01.org/0day-ci/archive/20220805/202208050544.ijUhoUyB-lkp@intel.com/config)
> compiler: arc-elf-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://github.com/intel-lab-lkp/linux/commit/f3778ca026b16474e49c5e0188a0eb91d73eef2f
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Johan-Hovold/usb-dwc3-qcom-fix-wakeup-implementation/20220804-231122
>         git checkout f3778ca026b16474e49c5e0188a0eb91d73eef2f
>         # 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=arc SHELL=/bin/bash drivers/usb/dwc3/
> 
> 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/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;
>          |                         ^~~> 

I'm not seeing this one with gcc-10.3.0, but I'll slap a __maybe_unused
in there to keep your robot's W=1 builds quiet.

Johan