net: dsa: make port_bridge_leave return void

netdev_upper_dev_unlink() which notifies NETDEV_CHANGEUPPER, returns
void, as well as del_nbp(). So there's no advantage to catch an eventual
error from the port_bridge_leave routine at the DSA level.

Make this routine void for the DSA layer and its existing drivers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 11 insertions, 23 deletions

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 4bcc9ebf5e06..95944d5e3e22 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -516,7 +516,7 @@ static int bcm_sf2_sw_br_join(struct dsa_switch *ds, int port,
 	return 0;
 }
 
-static int bcm_sf2_sw_br_leave(struct dsa_switch *ds, int port)
+static void bcm_sf2_sw_br_leave(struct dsa_switch *ds, int port)
 {
 	struct bcm_sf2_priv *priv = ds_to_priv(ds);
 	struct net_device *bridge = priv->port_sts[port].bridge_dev;
@@ -543,8 +543,6 @@ static int bcm_sf2_sw_br_leave(struct dsa_switch *ds, int port)
 	core_writel(priv, p_ctl, CORE_PORT_VLAN_CTL_PORT(port));
 	priv->port_sts[port].vlan_ctl_mask = p_ctl;
 	priv->port_sts[port].bridge_dev = NULL;
-
-	return 0;
 }
 
 static int bcm_sf2_sw_br_set_stp_state(struct dsa_switch *ds, int port,
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 5309c738ff00..fa086e09d6b7 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -2219,39 +2219,29 @@ unlock:
 	return err;
 }
 
-int mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port)
+void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	struct net_device *bridge = ps->ports[port].bridge_dev;
 	u16 fid;
-	int i, err;
+	int i;
 
 	mutex_lock(&ps->smi_mutex);
 
 	/* Give the port a fresh Filtering Information Database */
-	err = _mv88e6xxx_fid_new(ds, &fid);
-	if (err)
-		goto unlock;
-
-	err = _mv88e6xxx_port_fid_set(ds, port, fid);
-	if (err)
-		goto unlock;
+	if (_mv88e6xxx_fid_new(ds, &fid) ||
+	    _mv88e6xxx_port_fid_set(ds, port, fid))
+		netdev_warn(ds->ports[port], "failed to assign a new FID\n");
 
 	/* Unassign the bridge and remap each port's VLANTable */
 	ps->ports[port].bridge_dev = NULL;
 
-	for (i = 0; i < ps->num_ports; ++i) {
-		if (i == port || ps->ports[i].bridge_dev == bridge) {
-			err = _mv88e6xxx_port_based_vlan_map(ds, i);
-			if (err)
-				break;
-		}
-	}
+	for (i = 0; i < ps->num_ports; ++i)
+		if (i == port || ps->ports[i].bridge_dev == bridge)
+			if (_mv88e6xxx_port_based_vlan_map(ds, i))
+				netdev_warn(ds->ports[i], "failed to remap\n");
 
-unlock:
 	mutex_unlock(&ps->smi_mutex);
-
-	return err;
 }
 
 static void mv88e6xxx_bridge_work(struct work_struct *work)
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 281cefe86afd..9a038aba48fb 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -488,7 +488,7 @@ int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
 		      struct phy_device *phydev, struct ethtool_eee *e);
 int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
 			       struct net_device *bridge);
-int mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port);
+void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port);
 int mv88e6xxx_port_stp_update(struct dsa_switch *ds, int port, u8 state);
 int mv88e6xxx_port_vlan_filtering(struct dsa_switch *ds, int port,
 				  bool vlan_filtering);