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qeth: Clear mac_bits field when switching between Layer 2 and Layer 3 

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Carsten Otte 2010-07-22 23:15:04 +00:00 committed by David S. Miller
parent 6298263ac0
commit 75e0de1363
1 changed files with 1 additions and 0 deletions
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1
drivers/s390/net/qeth_core_sys.c
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@ -433,6 +433,7 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
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);