From: Ben Pfaff <blp@nicira.com>
Date: Wed, 12 Nov 2008 00:51:56 +0000 (-0800)
Subject: Reset mac header in flow_extract(), because it might initially be null.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b4181aef8770a85bdf2fd4080f1b06387447c8aa;p=openvswitch

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 48c2d4c9..10060b05 100644
--- 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;