net: devlink: remove net namespace check from devlink_nl_port_fill()

It is ensured by the netdevice notifier event processing, that only
netdev pointers from the same net namespaces are filled. Remove the
net namespace check from devlink_nl_port_fill() as it is no longer
needed.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/core/devlink.c

@@ -1305,10 +1305,9 @@ static int devlink_nl_port_fill(struct sk_buff *msg,
 			devlink_port->desired_type))
 		goto nla_put_failure_type_locked;
 	if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) {
-		struct net *net = devlink_net(devlink_port->devlink);
 		struct net_device *netdev = devlink_port->type_eth.netdev;
 
-		if (netdev && net_eq(net, dev_net(netdev)) &&
+		if (netdev &&
 		    (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX,
 				 netdev->ifindex) ||
 		     nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME,