linux-kernel - Re: [PATCH v2] usb: dwc3: OCTEON: add support for device tree

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Date:   Sat, 10 Sep 2016 02:27:15 +0800
From:   kbuild test robot <lkp@...el.com>
To:     "Steven J. Hill" <Steven.Hill@...ium.com>
Cc:     kbuild-all@...org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
        David Daney <david.daney@...ium.com>
Subject: Re: [PATCH v2] usb: dwc3: OCTEON: add support for device tree

Hi Steven,

[auto build test WARNING on balbi-usb/next]
[also build test WARNING on v4.8-rc5 next-20160909]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Steven-J-Hill/usb-dwc3-OCTEON-add-support-for-device-tree/20160910-003135
base:   https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git next
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   drivers/usb/dwc3/dwc3-octeon.c: In function 'dwc3_octeon_probe':
>> drivers/usb/dwc3/dwc3-octeon.c:61:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     octeon->index = ((u64)octeon->usbctl >> 24) & 1;
                      ^

vim +61 drivers/usb/dwc3/dwc3-octeon.c

    45		 * "dma-ranges" or "dma-coherent" properties.
    46		 */
    47		ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64));
    48		if (ret)
    49			return ret;
    50	
    51		platform_set_drvdata(pdev, octeon);
    52		octeon->dev = dev;
    53	
    54		/* Resources for lower level OCTEON USB control. */
    55		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
    56		octeon->usbctl = devm_ioremap_resource(dev, res);
    57		if (IS_ERR(octeon->usbctl))
    58			return PTR_ERR(octeon->usbctl);
    59	
    60		/* Controller index. */
  > 61		octeon->index = ((u64)octeon->usbctl >> 24) & 1;
    62	
    63		return 0;
    64	}
    65	
    66	static const struct of_device_id octeon_dwc3_match[] = {
    67		{ .compatible = "cavium,octeon-7130-usb-uctl", },
    68		{},
    69	};

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