commit 2840bf22866935fe7197582bcbe2cde4503e0bba
author stephen hemminger <shemminger@vyatta.com> Tue Oct 09 20:35:51 2012 +0000
committer David S. Miller <davem@davemloft.net> Wed Oct 10 22:41:22 2012 -0400
tree eeb25f38098f7f2abc09c3dc0601ba77cb46fe0b
parent 05f47d69c44902c265dc2ad5a960978a97b45e3d

vxlan: add additional headroom

Tell upper layer protocols to allocate skb with additional headroom.
This avoids allocation and copy in local packet sends.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/vxlan.c

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 4be2784..0b95d5f 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -983,6 +983,7 @@
 
 	eth_hw_addr_random(dev);
 	ether_setup(dev);
+	dev->hard_header_len = ETH_HLEN + VXLAN_HEADROOM;
 
 	dev->netdev_ops = &vxlan_netdev_ops;
 	dev->destructor = vxlan_free;