Commit 05aebe2e authored Mar 14, 2011 by Daniel Turull Committed by David S. Miller Mar 14, 2011

pktgen: bug fix in transmission headers with frags=0



(bug introduced by commit 26ad7879
(pktgen: speedup fragmented skbs)

The headers of pktgen were incorrectly added in a pktgen packet
without frags (frags=0). There was an offset in the pktgen headers.

The cause was in reusing the pgh variable as a return variable in skb_put
when adding the payload to the skb.

Signed-off-by: Daniel Turull <daniel.turull@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

parent 4e75db2e

net/core/pktgen.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -2620,8 +2620,7 @@ static void pktgen_finalize_skb(struct pktgen_dev pkt_dev, struct sk_buff skb,
		datalen -= sizeof(*pgh);

		if (pkt_dev->nfrags <= 0) {
		pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
		memset(pgh + 1, 0, datalen);
		memset(skb_put(skb, datalen), 0, datalen);
		} else {
		int frags = pkt_dev->nfrags;
		int i, len;