[ARM] sparse: quieten arch/arm/kernel/irq.c

Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/irq.h

@@ -22,6 +22,10 @@
 #ifndef __ASSEMBLY__
 struct irqaction;
 extern void migrate_irqs(void);
+
+extern void asm_do_IRQ(unsigned int, struct pt_regs *);
+void init_IRQ(void);
+
 #endif
 
 #endif