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pktgen: bug fix in transmission headers with frags=0 

(bug introduced by commit 26ad787962
(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>
This commit is contained in:
Daniel Turull 2011-03-14 13:47:40 -07:00 committed by David S. Miller
parent 4e75db2e8f
commit 05aebe2e5d
1 changed files with 1 additions and 2 deletions
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3
net/core/pktgen.c
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@ -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;