diff options
| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | 2017-12-13 18:56:29 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-15 11:29:42 -0500 |
| commit | 7fbd9493f0eeae8cef58300505a9ef5c8fce6313 (patch) | |
| tree | a8e3243579014a342b68c8e121eb264514f12a8f /drivers/s390/net/qeth_l3_sys.c | |
| parent | 0f546ffcd03b827a08832fac5611df5dc508e225 (diff) | |
| download | linux-7fbd9493f0eeae8cef58300505a9ef5c8fce6313.tar.gz linux-7fbd9493f0eeae8cef58300505a9ef5c8fce6313.tar.bz2 linux-7fbd9493f0eeae8cef58300505a9ef5c8fce6313.zip | |
s390/qeth: apply takeover changes when mode is toggled
Just as for an explicit enable/disable, toggling the takeover mode also
requires that the IP addresses get updated. Otherwise all IPs that were
added to the table before the mode-toggle, get registered with the old
settings.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_l3_sys.c')
| -rw-r--r-- | drivers/s390/net/qeth_l3_sys.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index bd12fdf678be..198717f71b3d 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -372,6 +372,7 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); struct qeth_ipaddr *addr; int i, rc = 0; + bool enable; if (!card) return -EINVAL; @@ -384,25 +385,23 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, } if (sysfs_streq(buf, "toggle")) { - card->ipato.enabled = (card->ipato.enabled)? 0 : 1; - } else if (sysfs_streq(buf, "1")) { - card->ipato.enabled = 1; - hash_for_each(card->ip_htable, i, addr, hnode) { - if ((addr->type == QETH_IP_TYPE_NORMAL) && - qeth_l3_is_addr_covered_by_ipato(card, addr)) - addr->set_flags |= - QETH_IPA_SETIP_TAKEOVER_FLAG; - } - } else if (sysfs_streq(buf, "0")) { - card->ipato.enabled = 0; - hash_for_each(card->ip_htable, i, addr, hnode) { - if (addr->set_flags & - QETH_IPA_SETIP_TAKEOVER_FLAG) - addr->set_flags &= - ~QETH_IPA_SETIP_TAKEOVER_FLAG; - } - } else + enable = !card->ipato.enabled; + } else if (kstrtobool(buf, &enable)) { rc = -EINVAL; + goto out; + } + + if (card->ipato.enabled == enable) + goto out; + card->ipato.enabled = enable; + + hash_for_each(card->ip_htable, i, addr, hnode) { + if (!enable) + addr->set_flags &= ~QETH_IPA_SETIP_TAKEOVER_FLAG; + else if (addr->type == QETH_IP_TYPE_NORMAL && + qeth_l3_is_addr_covered_by_ipato(card, addr)) + addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; + } out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; |