Merge branches 'irq/sparseirq', 'irq/genirq' and 'irq/urgent'; commit 'v2.6.28' into...
[linux-3.10.git] / kernel / irq / chip.c
index 7765d4c..6eb3c79 100644 (file)
  */
 void dynamic_irq_init(unsigned int irq)
 {
-       struct irq_desc *desc = irq_to_desc(irq);
+       struct irq_desc *desc;
        unsigned long flags;
 
+       desc = irq_to_desc(irq);
        if (!desc) {
                WARN(1, KERN_ERR "Trying to initialize invalid IRQ%d\n", irq);
                return;
@@ -353,6 +354,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 
        spin_lock(&desc->lock);
        mask_ack_irq(desc, irq);
+       desc = irq_remap_to_desc(irq, desc);
 
        if (unlikely(desc->status & IRQ_INPROGRESS))
                goto out_unlock;
@@ -430,6 +432,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
        desc->status &= ~IRQ_INPROGRESS;
 out:
        desc->chip->eoi(irq);
+       desc = irq_remap_to_desc(irq, desc);
 
        spin_unlock(&desc->lock);
 }
@@ -466,12 +469,14 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
                    !desc->action)) {
                desc->status |= (IRQ_PENDING | IRQ_MASKED);
                mask_ack_irq(desc, irq);
+               desc = irq_remap_to_desc(irq, desc);
                goto out_unlock;
        }
        kstat_incr_irqs_this_cpu(irq, desc);
 
        /* Start handling the irq */
        desc->chip->ack(irq);
+       desc = irq_remap_to_desc(irq, desc);
 
        /* Mark the IRQ currently in progress.*/
        desc->status |= IRQ_INPROGRESS;
@@ -532,8 +537,10 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
        if (!noirqdebug)
                note_interrupt(irq, desc, action_ret);
 
-       if (desc->chip->eoi)
+       if (desc->chip->eoi) {
                desc->chip->eoi(irq);
+               desc = irq_remap_to_desc(irq, desc);
+       }
 }
 
 void
@@ -568,8 +575,10 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
 
        /* Uninstall? */
        if (handle == handle_bad_irq) {
-               if (desc->chip != &no_irq_chip)
+               if (desc->chip != &no_irq_chip) {
                        mask_ack_irq(desc, irq);
+                       desc = irq_remap_to_desc(irq, desc);
+               }
                desc->status |= IRQ_DISABLED;
                desc->depth = 1;
        }