Index: linux/net/core/net-sysfs.c
===================================================================
--- linux.orig/net/core/net-sysfs.c	2004-09-27 18:27:16.000000000 +0300
+++ linux/net/core/net-sysfs.c	2004-10-06 13:22:07.347392792 +0300
@@ -448,3 +448,11 @@
 {
 	return class_register(&net_class);
 }
+
+int netdev_register_interface(struct class_interface *intf)
+{
+	intf->class = &net_class;
+	return class_interface_register(intf);
+}
+
+EXPORT_SYMBOL_GPL(netdev_register_interface);
Index: linux/include/linux/netdevice.h
===================================================================
--- linux.orig/include/linux/netdevice.h	2004-09-27 18:27:54.000000000 +0300
+++ linux/include/linux/netdevice.h	2004-10-06 13:29:51.031902032 +0300
@@ -953,6 +953,12 @@
 extern char *net_sysctl_strdup(const char *s);
 #endif
 
+#ifdef CONFIG_SYSFS
+extern int netdev_register_interface(struct class_interface *intf);
+#define netdev_unregister_interface(intf) \
+	class_interface_unregister(intf)
+#endif
+
 #endif /* __KERNEL__ */
 
 #endif	/* _LINUX_DEV_H */