[PATCH v2 1/3] net: core: ethtool: add ethtool_op_{get|set}_link_ksettings

[Philippe Reynes <tremyfr@gmail.com>]

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

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
---
 include/linux/ethtool.h |    5 +++++
 net/core/ethtool.c      |   24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 9ded8c6..9a55836 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -157,6 +157,11 @@ void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
 				     const unsigned long *src);
 
+int ethtool_op_get_link_ksettings(struct net_device *ndev,
+				  struct ethtool_link_ksettings *cmd);
+int ethtool_op_set_link_ksettings(struct net_device *ndev,
+				  const struct ethtool_link_ksettings *cmd);
+
 /**
  * struct ethtool_ops - optional netdev operations
  * @get_settings: DEPRECATED, use %get_link_ksettings/%set_link_ksettings
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index bdb4013..b605fb1 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -852,6 +852,30 @@ static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
 	return dev->ethtool_ops->set_settings(dev, &cmd);
 }
 
+int ethtool_op_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(ethtool_op_get_link_ksettings);
+
+int ethtool_op_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(ethtool_op_set_link_ksettings);
+
 static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
 						  void __user *useraddr)
 {
-- 
1.7.4.4