From: David S. Miller <davem@sunset.davemloft.net>
Date: Wed, 18 Jan 2006 22:19:10 +0000 (-0800)
Subject: [PKTGEN]: Respect hard_header_len of device.
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=7ac5459ec0f074022818af35c589b9e2b406d7c3;p=openwrt%2Fstaging%2Fblogic.git

[PKTGEN]: Respect hard_header_len of device.

Don't assume 16.

Found by Ben Greear.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 3827f881f429..da16f8fd1494 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1860,13 +1860,14 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 	 */
 	mod_cur_headers(pkt_dev);
 
-	skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16, GFP_ATOMIC);
+	datalen = (odev->hard_header_len + 16) & ~0xf;
+	skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + datalen, GFP_ATOMIC);
 	if (!skb) {
 		sprintf(pkt_dev->result, "No memory");
 		return NULL;
 	}
 
-	skb_reserve(skb, 16);
+	skb_reserve(skb, datalen);
 
 	/*  Reserve for ethernet and IP header  */
 	eth = (__u8 *) skb_push(skb, 14);