net: Add skb_gro_postpull_rcsum to udp and vxlan

Need to gro_postpull_rcsum for GRO to work with checksum complete.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 4e2caaf8b5da..1610d51dbb5c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -565,6 +565,7 @@ static struct sk_buff **vxlan_gro_receive(struct sk_buff **head, struct sk_buff
                         goto out;
         }
         skb_gro_pull(skb, sizeof(struct vxlanhdr)); /* pull vxlan header */
+        skb_gro_postpull_rcsum(skb, vh, sizeof(struct vxlanhdr));
 
         off_eth = skb_gro_offset(skb);
         hlen = off_eth + sizeof(*eh);
@@ -599,6 +600,7 @@ static struct sk_buff **vxlan_gro_receive(struct sk_buff **head, struct sk_buff
         }
 
         skb_gro_pull(skb, sizeof(*eh)); /* pull inner eth header */
+        skb_gro_postpull_rcsum(skb, eh, sizeof(*eh));
         pp = ptype->callbacks.gro_receive(head, skb);
 
 out_unlock:
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 7b1840110173..546d2d439dda 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -200,6 +200,7 @@ unflush:
         }
 
         skb_gro_pull(skb, sizeof(struct udphdr)); /* pull encapsulating udp header */
+        skb_gro_postpull_rcsum(skb, uh, sizeof(struct udphdr));
         pp = uo_priv->offload->callbacks.gro_receive(head, skb);
 
 out_unlock: