|  | /* | 
|  | * IRQ subsystem internal functions and variables: | 
|  | */ | 
|  |  | 
|  | extern int noirqdebug; | 
|  |  | 
|  | #ifdef CONFIG_PROC_FS | 
|  | extern void register_irq_proc(unsigned int irq); | 
|  | extern void register_handler_proc(unsigned int irq, struct irqaction *action); | 
|  | extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); | 
|  | #else | 
|  | static inline void register_irq_proc(unsigned int irq) { } | 
|  | static inline void register_handler_proc(unsigned int irq, | 
|  | struct irqaction *action) { } | 
|  | static inline void unregister_handler_proc(unsigned int irq, | 
|  | struct irqaction *action) { } | 
|  | #endif | 
|  |  |