[IA64] use generic_handle_irq()

Use generic_handle_irq() to handle mixed-type irq handling.

Signed-off-by: Ingo Molnar <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/kernel/irq.c

···
 			struct pt_regs *old_regs = set_irq_regs(NULL);
 
 			vectors_in_migration[irq]=0;
-			__do_IRQ(irq);
+			generic_handle_irq(irq);
 			set_irq_regs(old_regs);
 		}
 	}

arch/ia64/kernel/irq_ia64.c

···
 			ia64_setreg(_IA64_REG_CR_TPR, vector);
 			ia64_srlz_d();
 
-			__do_IRQ(local_vector_to_irq(vector));
+			generic_handle_irq(local_vector_to_irq(vector));
 
 			/*
 			 * Disable interrupts and send EOI:
···
 			 * Probably could shared code.
 			 */
 			vectors_in_migration[local_vector_to_irq(vector)]=0;
-			__do_IRQ(local_vector_to_irq(vector));
+			generic_handle_irq(local_vector_to_irq(vector));
 			set_irq_regs(old_regs);
 
 			/*