of: Remove nested function

Some toolchains dislike nested function definition, so we define function match
outside of of_phy_find_device.

Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

drivers/of/of_mdio.c

@@ -97,6 +97,12 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 }
 EXPORT_SYMBOL(of_mdiobus_register);
 
+/* Helper function for of_phy_find_device */
+static int of_phy_match(struct device *dev, void *phy_np)
+{
+	return dev_archdata_get_node(&dev->archdata) == phy_np;
+}
+
 /**
  * of_phy_find_device - Give a PHY node, find the phy_device
  * @phy_np: Pointer to the phy's device tree node
@@ -106,15 +112,10 @@ EXPORT_SYMBOL(of_mdiobus_register);
 struct phy_device *of_phy_find_device(struct device_node *phy_np)
 {
 	struct device *d;
-	int match(struct device *dev, void *phy_np)
-	{
-		return dev_archdata_get_node(&dev->archdata) == phy_np;
-	}
-
 	if (!phy_np)
 		return NULL;
 
-	d = bus_find_device(&mdio_bus_type, NULL, phy_np, match);
+	d = bus_find_device(&mdio_bus_type, NULL, phy_np, of_phy_match);
 	return d ? to_phy_device(d) : NULL;
 }
 EXPORT_SYMBOL(of_phy_find_device);