[usb:usb-testing 18/18] drivers/usb/misc/apple-mfi-fastcharge.c:173:29: sparse: sparse: restricted __le16 degrades to integer

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
head:   249fa8217b846a7c031b997bd4ea70d65d3ff774
commit: 249fa8217b846a7c031b997bd4ea70d65d3ff774 [18/18] USB: Add driver to control USB fast charge for iOS devices
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-166-g7e4a5b6f-dirty
        git checkout 249fa8217b846a7c031b997bd4ea70d65d3ff774
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>


sparse warnings: (new ones prefixed by >>)

>> drivers/usb/misc/apple-mfi-fastcharge.c:173:29: sparse: sparse: restricted __le16 degrades to integer
   drivers/usb/misc/apple-mfi-fastcharge.c:174:29: sparse: sparse: restricted __le16 degrades to integer

vim +173 drivers/usb/misc/apple-mfi-fastcharge.c

   165	
   166	static int mfi_fc_probe(struct usb_device *udev)
   167	{
   168		struct power_supply_config battery_cfg = {};
   169		struct mfi_device *mfi = NULL;
   170		int err;
   171	
   172		/* See comment above mfi_fc_id_table[] */
 > 173		if (udev->descriptor.idProduct < 0x1200 ||
   174		    udev->descriptor.idProduct > 0x12ff) {
   175			return -ENODEV;
   176		}
   177	
   178		mfi = kzalloc(sizeof(struct mfi_device), GFP_KERNEL);
   179		if (!mfi) {
   180			err = -ENOMEM;
   181			goto error;
   182		}
   183	
   184		battery_cfg.drv_data = mfi;
   185	
   186		mfi->charge_type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
   187		mfi->battery = power_supply_register(&udev->dev,
   188							&apple_mfi_fc_desc,
   189							&battery_cfg);
   190		if (IS_ERR(mfi->battery)) {
   191			dev_err(&udev->dev, "Can't register battery\n");
   192			err = PTR_ERR(mfi->battery);
   193			goto error;
   194		}
   195	
   196		mfi->udev = usb_get_dev(udev);
   197		dev_set_drvdata(&udev->dev, mfi);
   198	
   199		return 0;
   200	
   201	error:
   202		kfree(mfi);
   203		return err;
   204	}
   205	

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



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