[PATCH] USB: gadget driver updates (SETUP api change)

This updates most of the gadget framework to expect SETUP packets use
USB byteorder (matching the annotation in <linux/usb_ch9.h> and usage
in the host side stack):

  - definition in <linux/usb_gadget.h>
  - gadget drivers:  Ethernet/RNDIS, serial/ACM, file_storage, gadgetfs.
  - dummy_hcd

It also includes some other similar changes as suggested by "sparse",
which was used to detect byteorder bugs.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 6e49432..a6e035e 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -919,9 +919,9 @@
 	struct zero_dev		*dev = get_gadget_data (gadget);
 	struct usb_request	*req = dev->req;
 	int			value = -EOPNOTSUPP;
-	u16			w_index = ctrl->wIndex;
-	u16			w_value = ctrl->wValue;
-	u16			w_length = ctrl->wLength;
+	u16			w_index = le16_to_cpu(ctrl->wIndex);
+	u16			w_value = le16_to_cpu(ctrl->wValue);
+	u16			w_length = le16_to_cpu(ctrl->wLength);
 
 	/* usually this stores reply data in the pre-allocated ep0 buffer,
 	 * but config change events will reconfigure hardware.