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-rw-r--r--net/ipv4/gre_demux.c4
-rw-r--r--net/ipv4/gre_offload.c8
2 files changed, 10 insertions, 2 deletions
diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c
index 0485bf7f8f03..7e0756da8737 100644
--- a/net/ipv4/gre_demux.c
+++ b/net/ipv4/gre_demux.c
@@ -125,6 +125,10 @@ static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
*csum_err = true;
return -EINVAL;
}
+
+ skb_checksum_try_convert(skb, IPPROTO_GRE, 0,
+ null_compute_pseudo);
+
options++;
}
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index a4d7965fb880..d3fe2ac05167 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -172,10 +172,14 @@ static struct sk_buff **gre_gro_receive(struct sk_buff **head,
}
/* Don't bother verifying checksum if we're going to flush anyway. */
- if ((greh->flags & GRE_CSUM) && !NAPI_GRO_CB(skb)->flush &&
- skb_gro_checksum_simple_validate(skb))
+ if ((greh->flags & GRE_CSUM) && !NAPI_GRO_CB(skb)->flush) {
+ if (skb_gro_checksum_simple_validate(skb))
goto out_unlock;
+ skb_gro_checksum_try_convert(skb, IPPROTO_GRE, 0,
+ null_compute_pseudo);
+ }
+
flush = 0;
for (p = *head; p; p = p->next) {