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Diffstat (limited to 'arch/x86/kernel/irq_64.c')
-rw-r--r--arch/x86/kernel/irq_64.c58
1 files changed, 0 insertions, 58 deletions
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 977d8b43a0d..acf8fbf8fbd 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -62,64 +62,6 @@ 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;
- static int warned;
- struct irq_desc *desc;
-
- for_each_irq_desc(irq, desc) {
- int break_affinity = 0;
- int set_affinity = 1;
- const struct cpumask *affinity;
-
- if (!desc)
- continue;
- if (irq == 2)
- continue;
-
- /* interrupt's are disabled at this point */
- spin_lock(&desc->lock);
-
- affinity = desc->affinity;
- if (!irq_has_action(irq) ||
- cpumask_equal(affinity, cpu_online_mask)) {
- spin_unlock(&desc->lock);
- continue;
- }
-
- if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
- break_affinity = 1;
- affinity = cpu_all_mask;
- }
-
- if (desc->chip->mask)
- desc->chip->mask(irq);
-
- if (desc->chip->set_affinity)
- desc->chip->set_affinity(irq, affinity);
- else if (!(warned++))
- set_affinity = 0;
-
- if (desc->chip->unmask)
- desc->chip->unmask(irq);
-
- spin_unlock(&desc->lock);
-
- if (break_affinity && set_affinity)
- printk("Broke affinity for irq %i\n", irq);
- else if (!set_affinity)
- printk("Cannot set affinity for irq %i\n", irq);
- }
-
- /* That doesn't seem sufficient. Give it 1ms. */
- local_irq_enable();
- mdelay(1);
- local_irq_disable();
-}
-#endif
extern void call_softirq(void);