ethtool: cosmetic: Use ethtool ethtool_cmd_speed API

This updates the network drivers so that they don't access the
ethtool_cmd::speed field directly, but use ethtool_cmd_speed()
instead.

For most of the drivers, these changes are purely cosmetic and don't
fix any problem, such as for those 1GbE/10GbE drivers that indirectly
call their own ethtool get_settings()/mii_ethtool_gset(). The changes
are meant to enforce code consistency and provide robustness with
future larger throughputs, at the expense of a few CPU cycles for each
ethtool operation.

All drivers compiled with make allyesconfig ion x86_64 have been
updated.

Tested: make allyesconfig on x86_64 + e1000e/bnx2x work
Signed-off-by: David Decotigny <decot@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/eepro.c

@@ -1703,7 +1703,7 @@ static int eepro_ethtool_get_settings(struct net_device *dev,
 		cmd->advertising |= ADVERTISED_AUI;
 	}
 
-	cmd->speed = SPEED_10;
+	ethtool_cmd_speed_set(cmd, SPEED_10);
 
 	if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
 		cmd->duplex = DUPLEX_FULL;