Hi Peter,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on balbi-usb/testing/next next-20200522]
[cannot apply to shawnguo/for-next v5.7-rc7]
[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/Peter-Chen/usb-some-PM-changes-for-cdns3-and-xhci-plat/20200524-072451
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: s390-randconfig-s002-20200524 (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-240-gf0fe1cd9-dirty
        # save the attached .config to linux build tree
        make W=1 C=1 ARCH=s390 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/usb/cdns3/cdns3-imx.c:150:12: warning: 'cdns_imx_platform_suspend' used but never defined
150 | static int cdns_imx_platform_suspend(struct device *dev,
|            ^~~~~~~~~~~~~~~~~~~~~~~~~

vim +/cdns_imx_platform_suspend +150 drivers/usb/cdns3/cdns3-imx.c

   149	
 > 150	static int cdns_imx_platform_suspend(struct device *dev,
   151		bool suspend, bool wakeup);
   152	static struct cdns3_platform_data cdns_imx_pdata = {
   153		.platform_suspend = cdns_imx_platform_suspend,
   154	};
   155	

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0-DAY CI Kernel Test Service, Intel Corporation
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