s390/qeth: don't apply takeover changes to RXIP

[ Upstream commit b22d73d6689fd902a66c08ebe71ab2f3b351e22f ]

When takeover is switched off, current code clears the 'TAKEOVER' flag on
all IPs. But the flag is also used for RXIP addresses, and those should
not be affected by the takeover mode.
Fix the behaviour by consistenly applying takover logic to NORMAL
addresses only.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 27185ab38136fce9dcb73a77d0f9e5e8a8f25474..56d1c756aef9ead474ee4509a9e8b808c7699113 100644 (file)
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -173,6 +173,8 @@ int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
 
        if (!card->ipato.enabled)
                return 0;
+       if (addr->type != QETH_IP_TYPE_NORMAL)
+               return 0;
 
        qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
                                  (addr->proto == QETH_PROT_IPV4)? 4:16);
@@ -289,8 +291,7 @@ int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
                memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
                addr->ref_counter = 1;
 
-               if (addr->type == QETH_IP_TYPE_NORMAL  &&
-                               qeth_l3_is_addr_covered_by_ipato(card, addr)) {
+               if (qeth_l3_is_addr_covered_by_ipato(card, addr)) {
                        QETH_CARD_TEXT(card, 2, "tkovaddr");
                        addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
                }

diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index 30bfeb1004a33aba47dae0b85040c9dd98f749ef..aada072ef0e3ead1c5e68f5d97ffb43c850ad3e7 100644 (file)
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -396,10 +396,11 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
        card->ipato.enabled = enable;
 
        hash_for_each(card->ip_htable, i, addr, hnode) {
+               if (addr->type != QETH_IP_TYPE_NORMAL)
+                       continue;
                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))
+               else if (qeth_l3_is_addr_covered_by_ipato(card, addr))
                        addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
        }
 out: