datapath: make skb->csum consistent with rest of networking stack.

[sliver-openvswitch.git] / datapath / flow.c

diff --git a/datapath/flow.c b/datapath/flow.c
index 7f897bd..7604405 100644 (file)
--- a/datapath/flow.c
+++ b/datapath/flow.c
@@ -636,6 +636,8 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
        memcpy(key->eth.dst, eth->h_dest, ETH_ALEN);
 
        __skb_pull(skb, 2 * ETH_ALEN);
+       /* We are going to push all headers that we pull, so no need to
+        * update skb->csum here. */
 
        if (vlan_tx_tag_present(skb))
                key->eth.tci = htons(vlan_get_tci(skb));