net: dsa: call phy_init_eee in DSA layer

All DSA drivers are calling phy_init_eee if eee_enabled is true.

Move up this statement in the DSA layer to simplify the DSA drivers.
qca8k does not require to cache the ethtool_eee structures from now on.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/bcm_sf2.c

@@ -360,14 +360,7 @@ static int bcm_sf2_sw_set_eee(struct dsa_switch *ds, int port,
 	struct ethtool_eee *p = &priv->port_sts[port].eee;
 
 	p->eee_enabled = e->eee_enabled;
-
-	if (!p->eee_enabled) {
-		bcm_sf2_eee_enable_set(ds, port, false);
-	} else {
-		p->eee_enabled = bcm_sf2_eee_init(ds, port, phydev);
-		if (!p->eee_enabled)
-			return -EOPNOTSUPP;
-	}
+	bcm_sf2_eee_enable_set(ds, port, e->eee_enabled);
 
 	return 0;
 }

drivers/net/dsa/mv88e6xxx/chip.c

@@ -855,12 +855,6 @@ static int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
 
-	if (e->eee_enabled) {
-		err = phy_init_eee(phydev, 0);
-		if (err)
-			return err;
-	}
-
 	mutex_lock(&chip->reg_lock);
 	err = mv88e6xxx_energy_detect_write(chip, port, e);
 	mutex_unlock(&chip->reg_lock);

drivers/net/dsa/qca8k.c

@@ -654,41 +654,14 @@ qca8k_eee_enable_set(struct dsa_switch *ds, int port, bool enable)
 	mutex_unlock(&priv->reg_mutex);
 }
 
-static int
-qca8k_eee_init(struct dsa_switch *ds, int port,
-	       struct phy_device *phy)
-{
-	int ret;
-
-	ret = phy_init_eee(phy, 0);
-	if (ret)
-		return 0;
-
-	qca8k_eee_enable_set(ds, port, true);
-
-	return 1;
-}
-
 static int
 qca8k_set_eee(struct dsa_switch *ds, int port,
 	      struct phy_device *phydev,
 	      struct ethtool_eee *e)
 {
-	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
-	struct ethtool_eee *p = &priv->port_sts[port].eee;
-	int ret = 0;
-
-	p->eee_enabled = e->eee_enabled;
+	qca8k_eee_enable_set(ds, port, e->eee_enabled);
 
-	if (!p->eee_enabled) {
-		qca8k_eee_enable_set(ds, port, false);
-	} else {
-		p->eee_enabled = qca8k_eee_init(ds, port, phydev);
-		if (!p->eee_enabled)
-			ret = -EOPNOTSUPP;
-	}
-
-	return ret;
+	return 0;
 }
 
 static int

drivers/net/dsa/qca8k.h

@@ -156,7 +156,6 @@ enum qca8k_fdb_cmd {
 };
 
 struct ar8xxx_port_status {
-	struct ethtool_eee eee;
 	int enabled;
 };
 

net/dsa/slave.c

@@ -659,6 +659,12 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e)
 	if (ret)
 		return ret;
 
+	if (e->eee_enabled) {
+		ret = phy_init_eee(p->phy, 0);
+		if (ret)
+			return ret;
+	}
+
 	return phy_ethtool_set_eee(p->phy, e);
 }