s390: qeth: wrong packet length in qdio header

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: NFrank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

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;