6lowpan: remove unnecessary set of headers

On receiving side we don't need to set any headers in skb because the
6LoWPAN layer do not access it. Currently these values will set twice
after calling netif_rx.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index fde90e63027dc38f15de6c793f418b64df58f09a..6d6778432144de18a31a24642699cf22592be0f0 100644 (file)
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -737,7 +737,6 @@ static int lowpan_skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr)
                return -ENOMEM;
 
        skb_push(new, sizeof(struct ipv6hdr));
-       skb_reset_network_header(new);
        skb_copy_to_linear_data(new, hdr, sizeof(struct ipv6hdr));
 
        new->protocol = htons(ETH_P_IPV6);
@@ -1059,7 +1058,6 @@ lowpan_process_data(struct sk_buff *skb)
                skb = new;
 
                skb_push(skb, sizeof(struct udphdr));
-               skb_reset_transport_header(skb);
                skb_copy_to_linear_data(skb, &uh, sizeof(struct udphdr));
 
                lowpan_raw_dump_table(__func__, "raw UDP header dump",
@@ -1323,8 +1321,6 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev,
 
                /* Pull off the 1-byte of 6lowpan header. */
                skb_pull(local_skb, 1);
-               skb_reset_network_header(local_skb);
-               skb_set_transport_header(local_skb, sizeof(struct ipv6hdr));
 
                lowpan_give_skb_to_devices(local_skb);