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

From: kbuild test robot
Date: Fri Sep 09 2016 - 14:28:09 EST


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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