--- features_rw/net/core/net-sysfs.c	2005-03-26 05:28:36.000000000 +0200
+++ linux/net/core/net-sysfs.c	2005-05-23 11:57:33.000000000 +0300
@@ -91,7 +91,6 @@ static CLASS_DEVICE_ATTR(field, S_IRUGO,
 NETDEVICE_ATTR(addr_len, fmt_dec);
 NETDEVICE_ATTR(iflink, fmt_dec);
 NETDEVICE_ATTR(ifindex, fmt_dec);
-NETDEVICE_ATTR(features, fmt_hex);
 NETDEVICE_ATTR(type, fmt_dec);
 
 /* use same locking rules as GIFHWADDR ioctl's */
@@ -184,6 +183,28 @@ static ssize_t store_tx_queue_len(struct
 static CLASS_DEVICE_ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len, 
 			 store_tx_queue_len);
 
+NETDEVICE_SHOW(features, fmt_hex);
+
+static int change_features(struct net_device *net, unsigned long new_features)
+{
+	int old_features = net->features;
+
+	net->features = new_features;
+
+	if (old_features != net->features)
+		netdev_features_change(net);
+
+	return 0;
+}
+
+static ssize_t store_features(struct class_device *dev, const char *buf, size_t len)
+{
+	return netdev_store(dev, buf, len, change_features);
+}
+
+static CLASS_DEVICE_ATTR(features, S_IRUGO | S_IWUSR, show_features, 
+			 store_features);
+
 
 static struct class_device_attribute *net_class_attributes[] = {
 	&class_device_attr_ifindex,