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>

diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 5aa46d4..5a8ee32 100644 (file)
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -36,7 +36,8 @@ 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 (!skb->encapsulation)