x86: Unify fixup_irqs() for 32-bit and 64-bit kernels

There is no reason to have different fixup_irqs() for 32-bit and
64-bit kernels. Unify by using the superior 64-bit version for
both the kernels.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
LKML-Reference: <20091026230001.562512739@sbs-t61.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 45 deletions

diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 7d35d0fe2329..10709f29d166 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -211,48 +211,3 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
 
         return true;
 }
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/* A cpu has been removed from cpu_online_mask.  Reset irq affinities. */
-void fixup_irqs(void)
-{
-        unsigned int irq;
-        struct irq_desc *desc;
-
-        for_each_irq_desc(irq, desc) {
-                const struct cpumask *affinity;
-
-                if (!desc)
-                        continue;
-                if (irq == 2)
-                        continue;
-
-                affinity = desc->affinity;
-                if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
-                        printk("Breaking affinity for irq %i\n", irq);
-                        affinity = cpu_all_mask;
-                }
-                if (desc->chip->set_affinity)
-                        desc->chip->set_affinity(irq, affinity);
-                else if (desc->action)
-                        printk_once("Cannot set affinity for irq %i\n", irq);
-        }
-
-#if 0
-        barrier();
-        /* Ingo Molnar says: "after the IO-APIC masks have been redirected
-           [note the nop - the interrupt-enable boundary on x86 is two
-           instructions from sti] - to flush out pending hardirqs and
-           IPIs. After this point nothing is supposed to reach this CPU." */
-        __asm__ __volatile__("sti; nop; cli");
-        barrier();
-#else
-        /* That doesn't seem sufficient.  Give it 1ms. */
-        local_irq_enable();
-        mdelay(1);
-        local_irq_disable();
-#endif
-}
-#endif
-