[PATCH 4.4 195/312] ipv6: add missing netconf notif when all is updated

From: Greg Kroah-Hartman
Date: Fri May 08 2020 - 09:15:59 EST


From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>

commit d26c638c16cb54f6fb1507e27df93ede692db572 upstream.

The 'default' value was not advertised.

Fixes: f3a1bfb11ccb ("rtnl/ipv6: use netconf msg to advertise forwarding status")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
net/ipv6/addrconf.c | 7 +++++++
1 file changed, 7 insertions(+)

--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -771,7 +771,14 @@ static int addrconf_fixup_forwarding(str
}

if (p == &net->ipv6.devconf_all->forwarding) {
+ int old_dflt = net->ipv6.devconf_dflt->forwarding;
+
net->ipv6.devconf_dflt->forwarding = newf;
+ if ((!newf) ^ (!old_dflt))
+ inet6_netconf_notify_devconf(net, NETCONFA_FORWARDING,
+ NETCONFA_IFINDEX_DEFAULT,
+ net->ipv6.devconf_dflt);
+
addrconf_forward_change(net, newf);
if ((!newf) ^ (!old))
inet6_netconf_notify_devconf(net, NETCONFA_FORWARDING,