qeth: IP address takeover flag setting

The qeth IP address flag setting is possible when device is
offline. When setting device online afterwards the current set
IP addresses have to be correctly registered with the device
regarding the IP address takeover attribute.

Signed-off-by: Klaus-Dieter Wacker <kdwacker@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index fb5318b30e99..67cfa68dcf1b 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -479,6 +479,7 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
                 struct device_attribute *attr, const char *buf, size_t count)
 {
         struct qeth_card *card = dev_get_drvdata(dev);
+        struct qeth_ipaddr *tmpipa, *t;
         char *tmp;
         int rc = 0;
 
@@ -497,8 +498,21 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
                 card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
         } else if (!strcmp(tmp, "1")) {
                 card->ipato.enabled = 1;
+                list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) {
+                        if ((tmpipa->type == QETH_IP_TYPE_NORMAL) &&
+                                qeth_l3_is_addr_covered_by_ipato(card, tmpipa))
+                                tmpipa->set_flags |=
+                                        QETH_IPA_SETIP_TAKEOVER_FLAG;
+                }
+
         } else if (!strcmp(tmp, "0")) {
                 card->ipato.enabled = 0;
+                list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) {
+                        if (tmpipa->set_flags &
+                                QETH_IPA_SETIP_TAKEOVER_FLAG)
+                                tmpipa->set_flags &=
+                                        ~QETH_IPA_SETIP_TAKEOVER_FLAG;
+                }
         } else
                 rc = -EINVAL;
 out: