netns: allow per device ipv6 snmp statistics in non-initial namespace

Signed-off-by: NDenis V. Lunev <den@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/proc.c

@@ -231,9 +231,6 @@ int snmp6_register_dev(struct inet6_dev *idev)
 		return -EINVAL;
 
 	net = dev_net(idev->dev);
-	if (!net_eq(net, &init_net))
-		return 0;
-
 	if (!net->mib.proc_net_devsnmp6)
 		return -ENOENT;