netdev: Use default implementation of ethtool_ops::get_link where possible

Various drivers are using implementations of ethtool_ops::get_link
that are equivalent to the default ethtool_op_get_link().  Change
them to use that instead.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sunlance.c b/drivers/net/sunlance.c
index 2cf84e5..767e1e2 100644
--- a/drivers/net/sunlance.c
+++ b/drivers/net/sunlance.c
@@ -1295,17 +1295,9 @@
 	strcpy(info->version, "2.02");
 }
 
-static u32 sparc_lance_get_link(struct net_device *dev)
-{
-	/* We really do not keep track of this, but this
-	 * is better than not reporting anything at all.
-	 */
-	return 1;
-}
-
 static const struct ethtool_ops sparc_lance_ethtool_ops = {
 	.get_drvinfo		= sparc_lance_get_drvinfo,
-	.get_link		= sparc_lance_get_link,
+	.get_link		= ethtool_op_get_link,
 };
 
 static const struct net_device_ops sparc_lance_ops = {