From: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Date: Fri, 18 Aug 2017 10:19:08 +0200
Subject: s390/qeth: pass full IQD header length to fill_buffer()
Patch-mainline: v4.14-rc1
Git-commit: f1588177b259e75a9fabcf3d4d0be4d6b0981d24
References: bsc#1061024 FATE#323301

This is a prerequisite for unifying the code to build header elements.
The TSO header has a different size, so we can no longer rely on implicitly
adding the size of a normal qeth_hdr.

No functional change.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/s390/net/qeth_core_main.c |    3 +--
 drivers/s390/net/qeth_l2_main.c   |    2 +-
 drivers/s390/net/qeth_l3_main.c   |    3 ++-
 3 files changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -3981,8 +3981,7 @@ static int qeth_fill_buffer(struct qeth_
 		is_first_elem = false;
 
 		buffer->element[element].addr = hdr;
-		buffer->element[element].length = sizeof(struct qeth_hdr) +
-							hd_len;
+		buffer->element[element].length = hd_len;
 		buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
 		buf->is_header[element] = 1;
 		buf->next_element_to_fill++;
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -695,7 +695,7 @@ static int qeth_l2_xmit_iqd(struct qeth_
 		goto out;
 	}
 	rc = qeth_do_send_packet_fast(card, queue, skb, hdr, data_offset,
-				      data_offset);
+				      sizeof(*hdr) + data_offset);
 out:
 	if (rc)
 		kmem_cache_free(qeth_core_header_cache, hdr);
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -2670,6 +2670,7 @@ static netdev_tx_t qeth_l3_hard_start_xm
 	if (card->info.type == QETH_CARD_TYPE_IQD) {
 		new_skb = skb;
 		data_offset = ETH_HLEN;
+		hd_len = sizeof(*hdr);
 		hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
 		if (!hdr)
 			goto tx_drop;
@@ -2771,7 +2772,7 @@ static netdev_tx_t qeth_l3_hard_start_xm
 					 hd_len, elements);
 	} else
 		rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
-					      data_offset, 0);
+					      data_offset, hd_len);
 
 	if (!rc) {
 		card->stats.tx_packets++;