+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+#define net_xmit_eval(e) ((e) == NET_XMIT_CN? 0 : (e))
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
+extern void unregister_netdevice_queue(struct net_device *dev,
+ struct list_head *head);
+extern void unregister_netdevice_many(struct list_head *head);
+#endif
+
+#ifndef HAVE_DEV_DISABLE_LRO
+extern void dev_disable_lro(struct net_device *dev);
+#endif