Re: [PATCH 1/3] mfd: wm831x: Add basic device tree binding

From: kbuild test robot
Date: Fri Feb 10 2017 - 16:33:32 EST


Hi Charles,

[auto build test WARNING on ljones-mfd/for-mfd-next]
[also build test WARNING on v4.10-rc7 next-20170210]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Charles-Keepax/mfd-wm831x-Add-basic-device-tree-binding/20170211-024222
base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=ia64

All warnings (new ones prefixed by >>):

drivers/mfd/wm831x-core.c: In function 'wm831x_of_get_type':
>> drivers/mfd/wm831x-core.c:1636:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
return (int)id->data;
^

vim +1636 drivers/mfd/wm831x-core.c

1620 { .compatible = "wlf,wm8310", .data = (void *)WM8310 },
1621 { .compatible = "wlf,wm8311", .data = (void *)WM8311 },
1622 { .compatible = "wlf,wm8312", .data = (void *)WM8312 },
1623 { .compatible = "wlf,wm8320", .data = (void *)WM8320 },
1624 { .compatible = "wlf,wm8321", .data = (void *)WM8321 },
1625 { .compatible = "wlf,wm8325", .data = (void *)WM8325 },
1626 { .compatible = "wlf,wm8326", .data = (void *)WM8326 },
1627 { },
1628 };
1629 EXPORT_SYMBOL_GPL(wm831x_of_match);
1630
1631 int wm831x_of_get_type(struct device *dev)
1632 {
1633 const struct of_device_id *id = of_match_device(wm831x_of_match, dev);
1634
1635 if (id)
> 1636 return (int)id->data;
1637 else
1638 return 0;
1639 }
1640 EXPORT_SYMBOL_GPL(wm831x_of_get_type);
1641 #endif
1642
1643 /*
1644 * Instantiate the generic non-control parts of the device.

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