From: Eric Dumazet <edumazet@google.com>
Date: Sat, 24 Oct 2015 12:47:44 +0000 (-0700)
Subject: ipv6: gre: support SIT encapsulation
X-Git-Tag: v3.16.35~1083
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=45f29add235cd3467835d667f4952809f17f7ab1;p=thirdparty%2Fkernel%2Fstable.git

ipv6: gre: support SIT encapsulation

commit 7e3b6e7423d5f994257c1de88e06b509673fdbcf upstream.

gre_gso_segment() chokes if SIT frames were aggregated by GRO engine.

Fixes: 61c1db7fae21e ("ipv6: sit: add GSO/TSO support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---

diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index d7a1f450653d8..85c84f487d595 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -43,7 +43,8 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
 				  SKB_GSO_TCP_ECN |
 				  SKB_GSO_GRE |
 				  SKB_GSO_GRE_CSUM |
-				  SKB_GSO_IPIP)))
+				  SKB_GSO_IPIP |
+				  SKB_GSO_SIT)))
 		goto out;
 
 	if (unlikely(!pskb_may_pull(skb, sizeof(*greh))))