drivers/net: const-ify ethtool_ops declarations

Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/wireless/bcm43xx/bcm43xx_ethtool.c

@@ -44,7 +44,7 @@ static void bcm43xx_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *
 	strncpy(info->bus_info, pci_name(bcm->pci_dev), ETHTOOL_BUSINFO_LEN);
 }
 
-struct ethtool_ops bcm43xx_ethtool_ops = {
+const struct ethtool_ops bcm43xx_ethtool_ops = {
 	.get_drvinfo = bcm43xx_get_drvinfo,
 	.get_link = ethtool_op_get_link,
 };

drivers/net/wireless/bcm43xx/bcm43xx_ethtool.h

@@ -3,6 +3,6 @@
 
 #include <linux/ethtool.h>
 
-extern struct ethtool_ops bcm43xx_ethtool_ops;
+extern const struct ethtool_ops bcm43xx_ethtool_ops;
 
 #endif /* BCM43xx_ETHTOOL_H_ */