From 05aebe2e5d009314a1d9b47ad9cda59ccb57d76d Mon Sep 17 00:00:00 2001 From: Daniel Turull Date: Mon, 14 Mar 2011 13:47:40 -0700 Subject: [PATCH] pktgen: bug fix in transmission headers with frags=0 (bug introduced by commit 26ad787962ef84677a48c560 (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 Signed-off-by: David S. Miller Signed-off-by: Eric Dumazet --- net/core/pktgen.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index f0aec6c39ecd..0c55eaa70e39 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -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; -- 2.30.2