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Date:   Mon, 18 Sep 2017 11:11:34 +0200
From:   Greg Kroah-Hartman <>
Cc:     Greg Kroah-Hartman <>,, Alexei Starovoitov <>,
        Haishuang Yan <>,
        Alexei Starovoitov <>,
        "David S. Miller" <>
Subject: [PATCH 4.9 25/78] ip_tunnel: fix setting ttl and tos value in collect_md mode

4.9-stable review patch.  If anyone has any objections, please let me know.


From: Haishuang Yan <>

[ Upstream commit 0f693f1995cf002432b70f43ce73f79bf8d0b6c9 ]

ttl and tos variables are declared and assigned, but are not used in
iptunnel_xmit() function.

Fixes: cfc7381b3002 ("ip_tunnel: add collect_md mode to IPIP tunnel")
Cc: Alexei Starovoitov <>
Signed-off-by: Haishuang Yan <>
Acked-by: Alexei Starovoitov <>
Signed-off-by: David S. Miller <>
Signed-off-by: Greg Kroah-Hartman <>
 net/ipv4/ip_tunnel.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -609,8 +609,8 @@ void ip_md_tunnel_xmit(struct sk_buff *s
 		goto tx_dropped;
-	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, key->tos,
-		      key->ttl, df, !net_eq(tunnel->net, dev_net(dev)));
+	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, tos, ttl,
+		      df, !net_eq(tunnel->net, dev_net(dev)));

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