net: phylink: re-split __phylink_connect_phy()

In order to support Clause 45 PHYs on SFP+ modules, which have an
indeterminant phy interface mode, we need to be able to call
phylink_bringup_phy() with a different interface mode to that used when
binding the PHY. Reduce __phylink_connect_phy() to an attach operation,
and move the call to phylink_bringup_phy() to its call sites.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index a89219a..e5c2a56 100644 (file)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -764,11 +764,9 @@ static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy)
        return 0;
 }
 
-static int __phylink_connect_phy(struct phylink *pl, struct phy_device *phy,
-               phy_interface_t interface)
+static int phylink_attach_phy(struct phylink *pl, struct phy_device *phy,
+                             phy_interface_t interface)
 {
-       int ret;
-
        if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED ||
                    (pl->link_an_mode == MLO_AN_INBAND &&
                     phy_interface_mode_is_8023z(interface))))
@@ -777,15 +775,7 @@ static int __phylink_connect_phy(struct phylink *pl, struct phy_device *phy,
        if (pl->phydev)
                return -EBUSY;
 
-       ret = phy_attach_direct(pl->netdev, phy, 0, interface);
-       if (ret)
-               return ret;
-
-       ret = phylink_bringup_phy(pl, phy);
-       if (ret)
-               phy_detach(phy);
-
-       return ret;
+       return phy_attach_direct(pl->netdev, phy, 0, interface);
 }
 
 /**
@@ -805,13 +795,23 @@ static int __phylink_connect_phy(struct phylink *pl, struct phy_device *phy,
  */
 int phylink_connect_phy(struct phylink *pl, struct phy_device *phy)
 {
+       int ret;
+
        /* Use PHY device/driver interface */
        if (pl->link_interface == PHY_INTERFACE_MODE_NA) {
                pl->link_interface = phy->interface;
                pl->link_config.interface = pl->link_interface;
        }
 
-       return __phylink_connect_phy(pl, phy, pl->link_interface);
+       ret = phylink_attach_phy(pl, phy, pl->link_interface);
+       if (ret < 0)
+               return ret;
+
+       ret = phylink_bringup_phy(pl, phy);
+       if (ret)
+               phy_detach(phy);
+
+       return ret;
 }
 EXPORT_SYMBOL_GPL(phylink_connect_phy);
 
@@ -1809,8 +1809,17 @@ static void phylink_sfp_link_up(void *upstream)
 static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
 {
        struct phylink *pl = upstream;
+       int ret;
 
-       return __phylink_connect_phy(upstream, phy, pl->link_config.interface);
+       ret = phylink_attach_phy(pl, phy, pl->link_config.interface);
+       if (ret < 0)
+               return ret;
+
+       ret = phylink_bringup_phy(pl, phy);
+       if (ret)
+               phy_detach(phy);
+
+       return ret;
 }
 
 static void phylink_sfp_disconnect_phy(void *upstream)