#define DEBUG 1
#if DEBUG
#define debug_print(fmt, args...) printk( KERN_DEBUG "xxx_debug:" fmt, ## args)
#else
#define debug_print(fmt, args...) do{}while(0)
#endif
#define DEBUG 1
#if DEBUG
#define debug_print(fmt, args...) printk( KERN_DEBUG "xxx_debug:" fmt, ## args)
#else
#define debug_print(fmt, args...) do{}while(0)
#endif