diff -urN RC13-git3-aaci/net/core/ethtool.c RC13-git3-ethtool/net/core/ethtool.c
--- RC13-git3-aaci/net/core/ethtool.c	2005-09-02 14:09:46.000000000 -0400
+++ RC13-git3-ethtool/net/core/ethtool.c	2005-09-04 08:52:55.000000000 -0400
@@ -695,7 +695,7 @@
 	return ret;
 }
 
-static int ethtool_get_perm_addr(struct net_device *dev, void *useraddr)
+static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
 {
 	struct ethtool_perm_addr epaddr;
 	u8 *data;