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    SubjectRe: [PATCH v4 2/2] usb: dwc3: Add driver for Xilinx platforms
    On Wed, Mar 17, 2021 at 05:50:22PM +0800, kernel test robot wrote:
    > Hi Manish,
    >
    > Thank you for the patch! Perhaps something to improve:
    >
    > [auto build test WARNING on usb/usb-testing]
    > [also build test WARNING on robh/for-next v5.12-rc3 next-20210316]
    > [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]
    >
    > url: https://github.com/0day-ci/linux/commits/Manish-Narani/Add-a-separate-DWC3-OF-driver-for-Xilinx-platforms/20210317-145425
    > base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
    > config: arm64-allyesconfig (attached as .config)
    > compiler: aarch64-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/0day-ci/linux/commit/def409fdf931cd77f4a88812570ea6f38f4053d8
    > git remote add linux-review https://github.com/0day-ci/linux
    > git fetch --no-tags linux-review Manish-Narani/Add-a-separate-DWC3-OF-driver-for-Xilinx-platforms/20210317-145425
    > git checkout def409fdf931cd77f4a88812570ea6f38f4053d8
    > # save the attached .config to linux build tree
    > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64
    >
    > If you fix the issue, kindly add following tag as appropriate
    > Reported-by: kernel test robot <lkp@intel.com>
    >
    > All warnings (new ones prefixed by >>):
    >
    > >> drivers/usb/dwc3/dwc3-xilinx.c:27: warning: expecting prototype for dwc3(). Prototype was for XLNX_USB_PHY_RST_EN() instead
    >
    >
    > vim +27 drivers/usb/dwc3/dwc3-xilinx.c
    >
    > 25
    > 26 /* USB phy reset mask register */
    > > 27 #define XLNX_USB_PHY_RST_EN 0x001C
    > 28 #define XLNX_PHY_RST_MASK 0x1
    > 29

    I do not understand this warning message. What is it trying to say?

    confused,

    greg k-h

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