diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h
index b90b11d0b886b34ea45a57c012c57d77fe54daf3..3f2470e9e67808d63f2bdbb71418ebcb36d2c212 100644
--- a/include/asm-mips/irq.h
+++ b/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 */
diff --git a/include/asm-ppc/irq.h b/include/asm-ppc/irq.h
index b4b270457eddce51eac0e30a6e604fb82630740e..55752474d0d9471ec28da282b5ed9024dd699f5c 100644
--- a/include/asm-ppc/irq.h
+++ b/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__ */
diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h
index 831e52ee45b594a8a8583cfc32f806f9fa91acc9..614a8c13b72169cca810974d7388342887b4a03a 100644
--- a/include/asm-sh/irq.h
+++ b/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
diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h
index 4482657777bbdbe2a576c3d073ac39eab113dada..fb724ba37ae630d85e38d77714822f08c973a537 100644
--- a/include/asm-x86_64/irq.h
+++ b/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);