Reset mac header in flow_extract(), because it might initially be null.

__alloc_skb() sets the mac header to null, and not all call chains
reset it.

diff --git a/datapath/flow.c b/datapath/flow.c
index 48c2d4c..10060b0 100644 (file)
--- a/datapath/flow.c
+++ b/datapath/flow.c
@@ -343,6 +343,7 @@ int flow_extract(struct sk_buff *skb, uint16_t in_port,
                return 0;
        }
 
+       skb_reset_mac_header(skb);
        eth = eth_hdr(skb);
        esh = (struct eth_snap_hdr *) eth;
        nh_ofs = sizeof *eth;