ipv6: exit early in addrconf_notify() if IPv6 is disabled
If IPv6 is explicitly disabled before the interface comes up,
it makes no sense to continue when it comes up, even just
print a message.
(I am not sure about other cases though, so I prefer not to touch)
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 6b6a373..39d3335 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2844,6 +2844,9 @@
if (dev->flags & IFF_SLAVE)
break;
+ if (idev && idev->cnf.disable_ipv6)
+ break;
+
if (event == NETDEV_UP) {
if (!addrconf_qdisc_ok(dev)) {
/* device is not ready yet. */