-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41)
-# include <linux/workqueue.h>
-#else
-# include <linux/tqueue.h>
-# define work_struct tq_struct
-# define INIT_WORK INIT_TQUEUE
-# define schedule_work schedule_task
-#endif
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,23)
-#define free_netdev(x) kfree(x)
-#define pci_name(x) x->slot_name
-#endif
-