net: phy: add phy_ethtool_{get|set}_link_ksettings

Ethtool callbacks {get|set}_link_ksettings are often the same, so
we add two generics functions phy_ethtool_{get|set}_link_ksettings
to avoid writing severals times the same function.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Acked-By: David Decotigny <decot@googlers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/phy.c

@@ -1347,3 +1347,27 @@ void phy_ethtool_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
 		phydev->drv->get_wol(phydev, wol);
 }
 EXPORT_SYMBOL(phy_ethtool_get_wol);
+
+int phy_ethtool_get_link_ksettings(struct net_device *ndev,
+				   struct ethtool_link_ksettings *cmd)
+{
+	struct phy_device *phydev = ndev->phydev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_ksettings_get(phydev, cmd);
+}
+EXPORT_SYMBOL(phy_ethtool_get_link_ksettings);
+
+int phy_ethtool_set_link_ksettings(struct net_device *ndev,
+				   const struct ethtool_link_ksettings *cmd)
+{
+	struct phy_device *phydev = ndev->phydev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_ksettings_set(phydev, cmd);
+}
+EXPORT_SYMBOL(phy_ethtool_set_link_ksettings);

include/linux/phy.h

@@ -829,6 +829,10 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
 void phy_ethtool_get_wol(struct phy_device *phydev,
 			 struct ethtool_wolinfo *wol);
+int phy_ethtool_get_link_ksettings(struct net_device *ndev,
+				   struct ethtool_link_ksettings *cmd);
+int phy_ethtool_set_link_ksettings(struct net_device *ndev,
+				   const struct ethtool_link_ksettings *cmd);
 
 int __init mdio_bus_init(void);
 void mdio_bus_exit(void);