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authorDavid Ahern <dsa@cumulusnetworks.com>2017-04-12 21:49:04 +0300
committerDavid S. Miller <davem@davemloft.net>2017-04-17 19:44:55 +0300
commit4a6e3c5def13c91adf2acc613837001f09af3baa (patch)
tree819fb5b47fc2141e6da1e14166c72891d5efec10 /net/ipv6/ndisc.c
parent70d40b366d2f7c2facaa3bc20f26e562e91ce94d (diff)
downloadlinux-4a6e3c5def13c91adf2acc613837001f09af3baa.tar.xz
net: ipv6: send unsolicited NA on admin up
ndisc_notify is the ipv6 equivalent to arp_notify. When arp_notify is set to 1, gratuitous arp requests are sent when the device is brought up. The same is expected when ndisc_notify is set to 1 (per ndisc_notify in Documentation/networking/ip-sysctl.txt). The NA is not sent on NETDEV_UP event; add it. Fixes: 5cb04436eef6 ("ipv6: add knob to send unsolicited ND on link-layer address change") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ndisc.c')
-rw-r--r--net/ipv6/ndisc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index b5812b3f7539..b23822e64228 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1748,6 +1748,8 @@ static int ndisc_netdev_event(struct notifier_block *this, unsigned long event,
case NETDEV_CHANGEADDR:
neigh_changeaddr(&nd_tbl, dev);
fib6_run_gc(0, net, false);
+ /* fallthrough */
+ case NETDEV_UP:
idev = in6_dev_get(dev);
if (!idev)
break;