net: Removed the device type check to add mpls support for devices

MPLS has no dependency with the device type of underlying devices.
Hence the device type check to add mpls support for devices can be
avoided.
Signed-off-by: NMartin Varghese <martin.varghese@nokia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/mpls/af_mpls.c

@@ -1584,21 +1584,10 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
 	unsigned int flags;
 
 	if (event == NETDEV_REGISTER) {
+		mdev = mpls_add_dev(dev);
+		if (IS_ERR(mdev))
+			return notifier_from_errno(PTR_ERR(mdev));
 
-		/* For now just support Ethernet, IPGRE, IP6GRE, SIT and
-		 * IPIP devices
-		 */
-		if (dev->type == ARPHRD_ETHER ||
-		    dev->type == ARPHRD_LOOPBACK ||
-		    dev->type == ARPHRD_IPGRE ||
-		    dev->type == ARPHRD_IP6GRE ||
-		    dev->type == ARPHRD_SIT ||
-		    dev->type == ARPHRD_TUNNEL ||
-		    dev->type == ARPHRD_TUNNEL6) {
-			mdev = mpls_add_dev(dev);
-			if (IS_ERR(mdev))
-				return notifier_from_errno(PTR_ERR(mdev));
-		}
 		return NOTIFY_OK;
 	}