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sit: remove unnecessary protocol check in ipip6_tunnel_xmit() 

ipip6_tunnel_xmit() is called immediately after checking that
skb->protocol is  htons(ETH_P_IPV6) so there is no need
to check it a second time.

Found by inspection.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Dinan Gunawardena <dinan.gunawardena@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Simon Horman 2016-06-09 18:03:34 +09:00 committed by David S. Miller
parent b8d99ba06b
commit adba931fbc
1 changed files with 0 additions and 3 deletions
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3
net/ipv6/sit.c
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@ -825,9 +825,6 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
u8 protocol = IPPROTO_IPV6;
int t_hlen = tunnel->hlen + sizeof(struct iphdr);
if (skb->protocol != htons(ETH_P_IPV6))
goto tx_error;
if (tos == 1)
tos = ipv6_get_dsfield(iph6);