extern int gsi_to_vector (unsigned int gsi);
extern int gsi_to_irq (unsigned int gsi);
extern void __init iosapic_parse_prt (void);
+extern void iosapic_enable_intr (unsigned int vector);
extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity,
unsigned long trigger);
extern void __init iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,