[SPARC64]: dr-cpu unconfigure support.

[deliverable/linux.git] / arch / sparc64 / kernel / irq.c

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index a1c916f35baa5f185ac62f179220d8d42e656544..8cb3358674f5257fcaff2ee83448592b1732e3dd 100644 (file)
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -803,6 +803,26 @@ void handler_irq(int irq, struct pt_regs *regs)
        set_irq_regs(old_regs);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+void fixup_irqs(void)
+{
+       unsigned int irq;
+
+       for (irq = 0; irq < NR_IRQS; irq++) {
+               unsigned long flags;
+
+               spin_lock_irqsave(&irq_desc[irq].lock, flags);
+               if (irq_desc[irq].action &&
+                   !(irq_desc[irq].status & IRQ_PER_CPU)) {
+                       if (irq_desc[irq].chip->set_affinity)
+                               irq_desc[irq].chip->set_affinity(irq,
+                                       irq_desc[irq].affinity);
+               }
+               spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
+       }
+}
+#endif
+
 struct sun5_timer {
        u64     count0;
        u64     limit0;