diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/net/qeth_l2_sys.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c index a553fbab17fc..52673cd1db99 100644 --- a/drivers/s390/net/qeth_l2_sys.c +++ b/drivers/s390/net/qeth_l2_sys.c @@ -86,7 +86,9 @@ static ssize_t qeth_bridge_port_role_store(struct device *dev, mutex_lock(&card->conf_mutex); - if (qeth_card_hw_is_reachable(card)) { + if (card->options.sbp.reflect_promisc) /* Forbid direct manipulation */ + rc = -EPERM; + else if (qeth_card_hw_is_reachable(card)) { rc = qeth_bridgeport_setrole(card, role); if (!rc) card->options.sbp.role = role; @@ -184,6 +186,7 @@ static ssize_t qeth_bridgeport_reflect_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); int enable, primary; + int rc = 0; if (!card) return -EINVAL; @@ -202,12 +205,17 @@ static ssize_t qeth_bridgeport_reflect_store(struct device *dev, mutex_lock(&card->conf_mutex); - card->options.sbp.reflect_promisc = enable; - card->options.sbp.reflect_promisc_primary = primary; + if (card->options.sbp.role != QETH_SBP_ROLE_NONE) + rc = -EPERM; + else { + card->options.sbp.reflect_promisc = enable; + card->options.sbp.reflect_promisc_primary = primary; + rc = 0; + } mutex_unlock(&card->conf_mutex); - return count; + return rc ? rc : count; } static DEVICE_ATTR(bridge_reflect_promisc, 0644, |