drivers/net: const-ify ethtool_ops declarations

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 8e112d1..4574290 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -99,7 +99,7 @@
 static struct net_device_stats *ray_get_stats(struct net_device *dev);
 static int ray_dev_init(struct net_device *dev);
 
-static struct ethtool_ops netdev_ethtool_ops;
+static const struct ethtool_ops netdev_ethtool_ops;
 
 static int ray_open(struct net_device *dev);
 static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev);
@@ -1092,7 +1092,7 @@
 	strcpy(info->driver, "ray_cs");
 }
 
-static struct ethtool_ops netdev_ethtool_ops = {
+static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
 };