vxlan: Checksum fixes

Call skb_pop_rcv_encapsulation and postpull_rcsum for the Ethernet
header to work properly with checksum complete.

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

1 files changed, 2 insertions, 9 deletions

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index e0995ffd046d..ade33ef82823 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1156,15 +1156,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
         if (!vs)
                 goto drop;
 
-        /* If the NIC driver gave us an encapsulated packet
-         * with the encapsulation mark, the device checksummed it
-         * for us. Otherwise force the upper layers to verify it.
-         */
-        if ((skb->ip_summed != CHECKSUM_UNNECESSARY && skb->ip_summed != CHECKSUM_PARTIAL) ||
-            !skb->encapsulation)
-                skb->ip_summed = CHECKSUM_NONE;
-
-        skb->encapsulation = 0;
+        skb_pop_rcv_encapsulation(skb);
 
         vs->rcv(vs, skb, vxh->vx_vni);
         return 0;
@@ -1201,6 +1193,7 @@ static void vxlan_rcv(struct vxlan_sock *vs,
         skb_reset_mac_header(skb);
         skb_scrub_packet(skb, !net_eq(vxlan->net, dev_net(vxlan->dev)));
         skb->protocol = eth_type_trans(skb, vxlan->dev);
+        skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
 
         /* Ignore packet loops (and multicast echo) */
         if (ether_addr_equal(eth_hdr(skb)->h_source, vxlan->dev->dev_addr))