6lowpan: change tag type to __be16

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 872c8f9..6b7d17f 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -68,7 +68,7 @@
 struct lowpan_dev_info {
 	struct net_device	*real_dev; /* real WPAN device ptr */
 	struct mutex		dev_list_mtx; /* mutex for list ops */
-	unsigned short		fragment_tag;
+	__be16			fragment_tag;
 };
 
 struct lowpan_dev_record {
@@ -424,7 +424,8 @@
 {
 	int err;
 	u16 dgram_offset, dgram_size, payload_length, header_length,
-	    lowpan_size, frag_plen, offset, tag;
+	    lowpan_size, frag_plen, offset;
+	__be16 tag;
 	u8 head[5];
 
 	header_length = skb->mac_len;