[PATCH] remove unnecessary handle_IRQ_event() prototypes

The function prototype for handle_IRQ_event() in a few architctures is not
needed because they use GENERIC_HARDIRQ.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-mips/irq.h

@@ -49,7 +49,4 @@ do {									\
 
 extern void arch_init_irq(void);
 
-struct irqaction;
-int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
-
 #endif /* _ASM_IRQ_H */

include/asm-ppc/irq.h

@@ -404,9 +404,5 @@ extern unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
 extern unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
 extern atomic_t ppc_n_lost_interrupts;
 
-struct irqaction;
-struct pt_regs;
-int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
-
 #endif /* _ASM_IRQ_H */
 #endif /* __KERNEL__ */

include/asm-sh/irq.h

@@ -587,10 +587,6 @@ static inline int generic_irq_demux(int irq)
 #define irq_canonicalize(irq)	(irq)
 #define irq_demux(irq)		__irq_demux(sh_mv.mv_irq_demux(irq))
 
-struct irqaction;
-struct pt_regs;
-int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
-
 #if defined(CONFIG_CPU_SUBTYPE_SH73180)
 #include <asm/irq-sh73180.h>
 #endif

include/asm-x86_64/irq.h

@@ -48,10 +48,6 @@ static __inline__ int irq_canonicalize(int irq)
 #define ARCH_HAS_NMI_WATCHDOG		/* See include/linux/nmi.h */
 #endif
 
-struct irqaction;
-struct pt_regs;
-int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
-
 #ifdef CONFIG_HOTPLUG_CPU
 #include <linux/cpumask.h>
 extern void fixup_irqs(cpumask_t map);