From a57ebc90f1350296edded12d33d7c278831bc3bf Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 8 Sep 2005 14:27:47 -0700
Subject: [PATCH] [IPV6]: Don't redo xfrm_lookup for cached dst entries
The xfrm lookup is already done when the dst entry is looked up first and
stored in the cache.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv6/ip6_tunnel.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 09613729404c..cf94372d1af3 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -673,11 +673,12 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
if ((dst = ip6_tnl_dst_check(t)) != NULL)
dst_hold(dst);
- else
+ else {
dst = ip6_route_output(NULL, &fl);
- if (dst->error || xfrm_lookup(&dst, &fl, NULL, 0) < 0)
- goto tx_err_link_failure;
+ if (dst->error || xfrm_lookup(&dst, &fl, NULL, 0) < 0)
+ goto tx_err_link_failure;
+ }
tdev = dst->dev;
--
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