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| author | Ursula Braun <ursula.braun@de.ibm.com> | 2010-03-08 20:36:56 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-10 07:32:26 -0800 |
| commit | 869da90b9ae39f0d5b9b5aa3a84502684a6aa1f4 (patch) | |
| tree | 50519820fcb4c2cd7ab4a0d76074a46539680229 /drivers/s390/net/qeth_l3_main.c | |
| parent | a959189a978e0104e8aa7f1522f5eff42d891456 (diff) | |
| download | linux-stable-869da90b9ae39f0d5b9b5aa3a84502684a6aa1f4.tar.gz linux-stable-869da90b9ae39f0d5b9b5aa3a84502684a6aa1f4.tar.bz2 linux-stable-869da90b9ae39f0d5b9b5aa3a84502684a6aa1f4.zip | |
qeth: no recovery after layer mismatch (z/VM NICs)
Depending on their definition in z/VM, virtual devices for z/VM
VSWITCH or GuestLAN must be configured either in layer2 or in
layer3 mode. If qeth detects a layer mismatch, device activation
fails. Trying to recover from this error cannot help; thus
scheduling a recovery should be avoided.
In addition, since recovery is forbidden during online setting of
a qeth device, existence of its network device is guaranteed for all
dev_close() calls in qeth. The corresponding checks can be removed.
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>
Diffstat (limited to 'drivers/s390/net/qeth_l3_main.c')
| -rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index cd746da2951e..b3b6e872d806 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -2219,11 +2219,9 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) if (recovery_mode) qeth_l3_stop(card->dev); else { - if (card->dev) { - rtnl_lock(); - dev_close(card->dev); - rtnl_unlock(); - } + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); } if (!card->use_hard_stop) { rc = qeth_send_stoplan(card); @@ -3536,11 +3534,9 @@ static int qeth_l3_pm_resume(struct ccwgroup_device *gdev) if (card->state == CARD_STATE_RECOVER) { rc = __qeth_l3_set_online(card->gdev, 1); if (rc) { - if (card->dev) { - rtnl_lock(); - dev_close(card->dev); - rtnl_unlock(); - } + rtnl_lock(); + dev_close(card->dev); + rtnl_unlock(); } } else rc = __qeth_l3_set_online(card->gdev, 0); |