x86: unify do_IRQ()

With the differences in interrupt handling hoisted into handle_irq(),
do_IRQ is more or less identical between 32 and 64 bit, so unify it.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 33 deletions

diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index a93f3b0dc7f2..977d8b43a0dd 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -62,39 +62,6 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
         return true;
 }
 
-/*
- * do_IRQ handles all normal device IRQ's (the special
- * SMP cross-CPU interrupts have their own specific
- * handlers).
- */
-asmlinkage unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
-{
-        struct pt_regs *old_regs = set_irq_regs(regs);
-
-        /* high bit used in ret_from_ code  */
-        unsigned vector = ~regs->orig_ax;
-        unsigned irq;
-
-        exit_idle();
-        irq_enter();
-
-        irq = __get_cpu_var(vector_irq)[vector];
-
-        if (!handle_irq(irq, regs)) {
-                if (!disable_apic)
-                        ack_APIC_irq();
-
-                if (printk_ratelimit())
-                        printk(KERN_EMERG "%s: %d.%d No irq handler for vector\n",
-                                __func__, smp_processor_id(), vector);
-        }
-
-        irq_exit();
-
-        set_irq_regs(old_regs);
-        return 1;
-}
-
 #ifdef CONFIG_HOTPLUG_CPU
 /* A cpu has been removed from cpu_online_mask.  Reset irq affinities. */
 void fixup_irqs(void)