e1000: allow ethtool to pass arbitrary speed advertisment

With a patch, ethtool can now signify the driver to advertise more
than just a single speed/duplex setting. This allows you to tell the
card to advertise in 10/100 in any speed if you don't have a gigabit
switch for instance.
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com>

drivers/net/e1000/e1000_ethtool.c

@@ -211,13 +211,9 @@ e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 				     ADVERTISED_FIBRE |
 				     ADVERTISED_Autoneg;
 		else
-			hw->autoneg_advertised = ADVERTISED_10baseT_Half |
-						  ADVERTISED_10baseT_Full |
-						  ADVERTISED_100baseT_Half |
-						  ADVERTISED_100baseT_Full |
-						  ADVERTISED_1000baseT_Full|
-						  ADVERTISED_Autoneg |
-						  ADVERTISED_TP;
+			hw->autoneg_advertised = ecmd->advertising |
+			                         ADVERTISED_TP |
+			                         ADVERTISED_Autoneg;
 		ecmd->advertising = hw->autoneg_advertised;
 	} else
 		if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {