ehea: Access iph->tot_len with correct endianness

iph->tot_len is stored in network byte order, so access it using
ntohs().  This doesn't have any real world impact on ehea, since ehea
only exists for big-endian platfroms (at the moment at least) but fixing
this gets rid of a sparse warning and avoids having a bad example in the
tree.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/ehea/ehea_main.c

@@ -623,7 +623,7 @@ static int get_skb_hdr(struct sk_buff *skb, void **iphdr,
 	*tcph = tcp_hdr(skb);
 
 	/* check if ip header and tcp header are complete */
-	if (iph->tot_len < ip_len + tcp_hdrlen(skb))
+	if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb))
 		return -1;
 
 	*hdr_flags = LRO_IPV4 | LRO_TCP;