commit 7e3b6e7423d5f994257c1de88e06b509673fdbcf
author Eric Dumazet <edumazet@google.com> Sat Oct 24 05:47:44 2015 -0700
committer David S. Miller <davem@davemloft.net> Mon Oct 26 22:01:18 2015 -0700
tree 3ec54ff1c7afd8d2a90c2eadae3b489f070a1d93
parent 3242c9ee0b6104c901336a9498bb7ec64923eb1f

ipv6: gre: support SIT encapsulation

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>

net/ipv4/gre_offload.c

diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 5aa46d4..5a8ee32 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -36,7 +36,8 @@
 				  SKB_GSO_TCP_ECN |
 				  SKB_GSO_GRE |
 				  SKB_GSO_GRE_CSUM |
-				  SKB_GSO_IPIP)))
+				  SKB_GSO_IPIP |
+				  SKB_GSO_SIT)))
 		goto out;
 
 	if (!skb->encapsulation)