dsa: implement ndo_get_devlink_port

In order for devlink compat functions to work, implement
ndo_get_devlink_port. Legacy slaves does not have devlink port instances
created for themselves.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 6a8418dfa64f3d603fc6f6baa0c25c2c5e2034e6..d1a0a656b6b522f41dcdce0fa55f406094c3f8ab 100644 (file)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1096,6 +1096,13 @@ int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
        return dsa_port_fdb_del(dp, addr, vid);
 }
 
+static struct devlink_port *dsa_slave_get_devlink_port(struct net_device *dev)
+{
+       struct dsa_port *dp = dsa_slave_to_port(dev);
+
+       return dp->ds->devlink ? &dp->devlink_port : NULL;
+}
+
 static const struct net_device_ops dsa_slave_netdev_ops = {
        .ndo_open               = dsa_slave_open,
        .ndo_stop               = dsa_slave_close,
@@ -1119,6 +1126,7 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
        .ndo_get_port_parent_id = dsa_slave_get_port_parent_id,
        .ndo_vlan_rx_add_vid    = dsa_slave_vlan_rx_add_vid,
        .ndo_vlan_rx_kill_vid   = dsa_slave_vlan_rx_kill_vid,
+       .ndo_get_devlink_port   = dsa_slave_get_devlink_port,
 };
 
 static struct device_type dsa_type = {