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List:       linux-s390
Subject:    [patch 2/8] qeth: Clear mac_bits field when switching between Layer 2 and Layer 3
From:       frank.blaschka () de ! ibm ! com
Date:       2010-07-23 9:15:04
Message-ID: 20100723091549.866454000 () de ! ibm ! com
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From: Carsten Otte <cotte@de.ibm.com>

This patch fixes a problem that occurs when switching from layer 3 to layer 2
mode. Resetting this mac_bits makes sure that we retrieve our mac address from
the card, otherwise the interface simply would'nt work.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
---

 drivers/s390/net/qeth_core_sys.c |    1 +
 1 file changed, 1 insertion(+)

diff -urpN linux-2.6/drivers/s390/net/qeth_core_sys.c linux-2.6-patched/drivers/s390/net/qeth_core_sys.c
--- linux-2.6/drivers/s390/net/qeth_core_sys.c	2010-07-22 10:22:12.000000000 +0200
+++ linux-2.6-patched/drivers/s390/net/qeth_core_sys.c	2010-07-22 10:22:34.000000000 +0200
@@ -433,6 +433,7 @@ static ssize_t qeth_dev_layer2_store(str
 	if (card->options.layer2 == newdis)
 		goto out;
 	else {
+		card->info.mac_bits  = 0;
 		if (card->discipline.ccwgdriver) {
 			card->discipline.ccwgdriver->remove(card->gdev);
 			qeth_core_free_discipline(card);

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