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Subject[PATCH 3.16.y-ckt 83/94] ipv6: gre: support SIT encapsulation
Date
3.16.7-ckt20 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>

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>
---
net/ipv4/gre_offload.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index d7a1f450653d..85c84f487d59 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))))

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