netdev - [PATCH 4/8] s390: qeth: wrong packet length in qdio header

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Message-ID: <20070620105914.GD9454@de.ibm.com>
Date:	Wed, 20 Jun 2007 12:59:14 +0200
From:	Frank Pavlic <fpavlic@...ibm.com>
To:	jgarzik@...ox.com
Cc:	netdev@...r.kernel.org
Subject: [PATCH 4/8] s390: qeth: wrong packet length in qdio header

From: Frank Pavlic <fpavlic@...ibm.com>

Packets Length in qdio header is broken when using
EDDP on Layer2 devices. This leads to skb_under_panic on receiver
system when running on z/VM GuestLAN devices.

Signed-off-by: Frank Pavlic <fpavlic@...ibm.com>
---
 drivers/s390/net/qeth_eddp.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c
index 4640f32..70108fb 100644
--- a/drivers/s390/net/qeth_eddp.c
+++ b/drivers/s390/net/qeth_eddp.c
@@ -424,8 +424,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
 		/* prepare qdio hdr */
 		if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2){
 			eddp->qh.hdr.l2.pkt_length = data_len + ETH_HLEN +
-						     eddp->nhl + eddp->thl -
-						     sizeof(struct qeth_hdr);
+						     eddp->nhl + eddp->thl;
 #ifdef CONFIG_QETH_VLAN
 			if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q))
 				eddp->qh.hdr.l2.pkt_length += VLAN_HLEN;
-- 
1.5.2.1

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