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qeth: recognize vlan devices in layer3 mode

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The qeth layer3 driver is notified about IP address changes.
Changes concerning qeth driven network interfaces have to be
forwarded to the OSA-card. This includes IP addresses of VLAN
interfaces with a qeth device as base device. Function
qeth_l3_verify_vlan_dev() determines if the net_device of the
IP event belongs to a vlan device belonging to a qeth device
as real device. This function is broken starting with commit
7ff0bcf676 , which means IP
addresses of VLAN devices are no longer set at the base qeth
device. The patch repairs function qeth_l3_verify_vlan_dev().

Signed-off-by: Ursula Braun <ursula.braun@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:
frank.blaschka@de.ibm.com 2012-05-16 01:28:26 +00:00 committed by David S. Miller
parent a8f40f7c8e
commit 6d8823db42
1 changed files with 2 additions and 2 deletions
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4
drivers/s390/net/qeth_l3_main.c
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@ -2073,7 +2073,7 @@ static int qeth_l3_verify_vlan_dev(struct net_device *dev,
struct net_device *netdev;
rcu_read_lock();
netdev = __vlan_find_dev_deep(dev, vid);
netdev = __vlan_find_dev_deep(card->dev, vid);
rcu_read_unlock();
if (netdev == dev) {
rc = QETH_VLAN_CARD;
@ -3602,9 +3602,9 @@ static int qeth_l3_ip_event(struct notifier_block *this,
return NOTIFY_DONE;
card = qeth_l3_get_card_from_dev(dev);
QETH_CARD_TEXT(card, 3, "ipevent");
if (!card)
return NOTIFY_DONE;
QETH_CARD_TEXT(card, 3, "ipevent");
addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
if (addr != NULL) {