Commit 805dc1d6 authored Nov 18, 2011 by Herbert Xu Committed by David S. Miller Nov 18, 2011

ip_gre: Set needed_headroom dynamically again



ip_gre: Set needed_headroom dynamically again

Now that all needed_headroom users have been fixed up so that
we can safely increase needed_headroom, this patch restore the
dynamic update of needed_headroom.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 4ce40912

net/ipv4/ip_gre.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -835,6 +835,8 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff skb, struct net_device dev
		if (skb_headroom(skb) < max_headroom \|\| skb_shared(skb)\|\|
		(skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
		struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom);
		if (max_headroom > dev->needed_headroom)
		dev->needed_headroom = max_headroom;
		if (!new_skb) {
		ip_rt_put(rt);
		dev->stats.tx_dropped++;