drivers/net: const-ify ethtool_ops declarations

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
index 4122bb4..62664c0 100644
--- a/drivers/net/pcmcia/xirc2ps_cs.c
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -361,7 +361,7 @@
 static int do_config(struct net_device *dev, struct ifmap *map);
 static int do_open(struct net_device *dev);
 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static struct ethtool_ops netdev_ethtool_ops;
+static const struct ethtool_ops netdev_ethtool_ops;
 static void hardreset(struct net_device *dev);
 static void do_reset(struct net_device *dev, int full);
 static int init_mii(struct net_device *dev);
@@ -1553,7 +1553,7 @@
 	sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
 }
 
-static struct ethtool_ops netdev_ethtool_ops = {
+static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
 };