--- arch/x86/include/asm/io_apic.h
+++ arch/x86/include/asm/io_apic.h
@@ -160,6 +160,7 @@ extern int io_apic_get_redir_entries(int
struct io_apic_irq_attr;
extern int io_apic_set_pci_routing(struct device *dev, int irq,
struct io_apic_irq_attr *irq_attr);
+void setup_IO_APIC_irq_extra(u32 gsi);
extern int (*ioapic_renumber_irq)(int ioapic, int irq);
extern void ioapic_init_mappings(void);
extern void ioapic_insert_resources(void);