Rename WARN() to WARNING() to clear the namespace

We want to use WARN() as a variant of WARN_ON(), however a few drivers are
using WARN() internally.  This patch renames these to WARNING() to avoid the
namespace clash.  A few cases were defining but not using the thing, for those
cases I just deleted the definition.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Greg KH <greg@kroah.com>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index b67ab67..5cfb5eb 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -1007,7 +1007,7 @@
 			 * 0122, and 0124; not all cases trigger the warning.
 			 */
 			if ((tmp & (1 << NAK_OUT_PACKETS)) == 0) {
-				WARN (ep->dev, "%s lost packet sync!\n",
+				WARNING (ep->dev, "%s lost packet sync!\n",
 						ep->ep.name);
 				req->req.status = -EOVERFLOW;
 			} else if ((tmp = readl (&ep->regs->ep_avail)) != 0) {