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, 27 deletions

diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 61f09fb969ee..4beb9a13873d 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -211,33 +211,6 @@ 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).
- */
-unsigned int do_IRQ(struct pt_regs *regs)
-{
-        struct pt_regs *old_regs;
-        /* high bit used in ret_from_ code */
-        unsigned vector = ~regs->orig_ax;
-        unsigned irq;
-
-        old_regs = set_irq_regs(regs);
-        irq_enter();
-        irq = __get_cpu_var(vector_irq)[vector];
-
-        if (!handle_irq(irq, regs)) {
-                printk(KERN_EMERG "%s: cannot handle IRQ %d vector %#x cpu %d\n",
-                                        __func__, irq, vector, smp_processor_id());
-                BUG();
-        }
-
-        irq_exit();
-        set_irq_regs(old_regs);
-        return 1;
-}
-
 #ifdef CONFIG_HOTPLUG_CPU
 #include <asm/genapic.h>