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Commit cd3e76eb authored by Frank Pavlic's avatar Frank Pavlic Committed by Jeff Garzik
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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: default avatarFrank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent add3f2fa

drivers/s390/net/qeth_eddp.c

+1 −2
Original line number Diff line number Diff line
@@ -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;