Merge branch 'cpus4096' into irq/threaded

[safe/jmp/linux-2.6] / kernel / irq / chip.c

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index f63c706..c687ba4 100644 (file)
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -46,7 +46,10 @@ void dynamic_irq_init(unsigned int irq)
        desc->irq_count = 0;
        desc->irqs_unhandled = 0;
 #ifdef CONFIG_SMP
-       cpumask_setall(&desc->affinity);
+       cpumask_setall(desc->affinity);
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+       cpumask_clear(desc->pending_mask);
+#endif
 #endif
        spin_unlock_irqrestore(&desc->lock, flags);
 }
@@ -78,6 +81,7 @@ void dynamic_irq_cleanup(unsigned int irq)
        desc->handle_irq = handle_bad_irq;
        desc->chip = &no_irq_chip;
        desc->name = NULL;
+       clear_kstat_irqs(desc);
        spin_unlock_irqrestore(&desc->lock, flags);
 }
 
@@ -290,7 +294,8 @@ static inline void mask_ack_irq(struct irq_desc *desc, int irq)
                desc->chip->mask_ack(irq);
        else {
                desc->chip->mask(irq);
-               desc->chip->ack(irq);
+               if (desc->chip->ack)
+                       desc->chip->ack(irq);
        }
 }
 
@@ -383,6 +388,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
 out_unlock:
        spin_unlock(&desc->lock);
 }
+EXPORT_SYMBOL_GPL(handle_level_irq);
 
 /**
  *     handle_fasteoi_irq - irq handler for transparent controllers
@@ -475,7 +481,8 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
        kstat_incr_irqs_this_cpu(irq, desc);
 
        /* Start handling the irq */
-       desc->chip->ack(irq);
+       if (desc->chip->ack)
+               desc->chip->ack(irq);
        desc = irq_remap_to_desc(irq, desc);
 
        /* Mark the IRQ currently in progress.*/
@@ -593,6 +600,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
        }
        spin_unlock_irqrestore(&desc->lock, flags);
 }
+EXPORT_SYMBOL_GPL(__set_irq_handler);
 
 void
 set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip,