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[net-next,12/12] s390/qeth: fix using of ref counter for rxip addresses

Message ID 20170815150250.67158-13-jwi@linux.vnet.ibm.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Julian Wiedmann Aug. 15, 2017, 3:02 p.m. UTC 
From: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com>

IP-address setting and removal are delayed when the device is not yet in
state SOFTSETUP or UP. ref_counter has been implemented only for
ip-address with type normal. In this patch ref_counter logic is also used
for ip-address with type rxip to allow appropriate handling of multiple
postponed rxip add and del calls.

Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
---
 drivers/s390/net/qeth_l3_main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 41bd00454d0f..0a3dc14a1381 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -247,7 +247,8 @@  int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
 		return -ENOENT;
 
 	addr->ref_counter--;
-	if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
+	if (addr->ref_counter > 0 && (addr->type == QETH_IP_TYPE_NORMAL ||
+				      addr->type == QETH_IP_TYPE_RXIP))
 		return rc;
 	if (addr->in_progress)
 		return -EINPROGRESS;
@@ -329,8 +330,9 @@  int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
 			kfree(addr);
 		}
 	} else {
-			if (addr->type == QETH_IP_TYPE_NORMAL)
-				addr->ref_counter++;
+		if (addr->type == QETH_IP_TYPE_NORMAL ||
+		    addr->type == QETH_IP_TYPE_RXIP)
+			addr->ref_counter++;
 	}
 
 	return rc;