struct pt_regs *old_regs;
unsigned long eirr_val;
int irq, cpu = smp_processor_id();
-#ifdef CONFIG_SMP
struct irq_data *irq_data;
+#ifdef CONFIG_SMP
cpumask_t dest;
#endif
goto set_out;
irq = eirr_to_irq(eirr_val);
-#ifdef CONFIG_SMP
irq_data = irq_get_irq_data(irq);
+
+ /* Filter out spurious interrupts, mostly from serial port at bootup */
+ if (unlikely(!irq_desc_has_action(irq_data_to_desc(irq_data))))
+ goto set_out;
+
+#ifdef CONFIG_SMP
cpumask_copy(&dest, irq_data_get_affinity_mask(irq_data));
if (irqd_is_per_cpu(irq_data) &&
!cpumask_test_cpu(smp_processor_id(), &dest)) {