[xlnx:xlnx_rebase_v5.4 903/1701] include/linux/usb/xhci_pdriver.h:22:6: warning: no previous prototype for 'dwc3_host_wakeup_capable'

Hi Michal,

FYI, the error/warning still remains.

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.4
head:   8540825db3d5519ef205a710515b7819b95eeb4f
commit: 6d0468b837bc2b3cce625f59904d137e63637b5d [903/1701] usb: dwc3: Add support for clock disabling during suspend
config: xtensa-randconfig-r036-20210401 (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.3.0
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/Xilinx/linux-xlnx/commit/6d0468b837bc2b3cce625f59904d137e63637b5d
        git remote add xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xlnx xlnx_rebase_v5.4
        git checkout 6d0468b837bc2b3cce625f59904d137e63637b5d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

   In file included from ./arch/xtensa/include/generated/asm/bug.h:1,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:12,
                    from arch/xtensa/include/asm/current.h:18,
                    from include/linux/mutex.h:14,
                    from include/linux/notifier.h:14,
                    from include/linux/clk.h:14,
                    from drivers/usb/host/xhci-plat.c:11:
   include/linux/dma-mapping.h: In function 'dma_map_resource':
   arch/xtensa/include/asm/page.h:182:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
     182 |  ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
         |         ^~
   include/asm-generic/bug.h:139:27: note: in definition of macro 'WARN_ON_ONCE'
     139 |  int __ret_warn_once = !!(condition);   \
         |                           ^~~~~~~~~
   include/linux/dma-mapping.h:355:19: note: in expansion of macro 'pfn_valid'
     355 |  if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr))))
         |                   ^~~~~~~~~
   In file included from drivers/usb/host/xhci-plat.c:23:
   include/linux/usb/xhci_pdriver.h: At top level:

quoted

include/linux/usb/xhci_pdriver.h:22:6: warning: no previous prototype for 'dwc3_host_wakeup_capable' [-Wmissing-prototypes]

      22 | void dwc3_host_wakeup_capable(struct device *dev, bool wakeup)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/dwc3_host_wakeup_capable +22 include/linux/usb/xhci_pdriver.h

    20	
    21	#else
  > 22	void dwc3_host_wakeup_capable(struct device *dev, bool wakeup)
    23	{ ; }
    24	#endif
    25	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org