aboutsummaryrefslogtreecommitdiff
path: root/kernel/irq/handle.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/irq/handle.c')
-rw-r--r--kernel/irq/handle.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 8aa09547f5e..f1a23069c20 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -23,7 +23,7 @@
/*
* lockdep: we want to handle all irq_desc locks as a single lock-class:
*/
-static struct lock_class_key irq_desc_lock_class;
+struct lock_class_key irq_desc_lock_class;
/**
* handle_bad_irq - handle spurious and unhandled irqs
@@ -73,7 +73,7 @@ static struct irq_desc irq_desc_init = {
#endif
};
-static void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr)
+void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr)
{
unsigned long bytes;
char *ptr;
@@ -113,7 +113,7 @@ static void init_one_irq_desc(int irq, struct irq_desc *desc, int cpu)
/*
* Protect the sparse_irqs:
*/
-static DEFINE_SPINLOCK(sparse_irq_lock);
+DEFINE_SPINLOCK(sparse_irq_lock);
struct irq_desc *irq_desc_ptrs[NR_IRQS] __read_mostly;
@@ -337,8 +337,11 @@ unsigned int __do_IRQ(unsigned int irq)
/*
* No locking required for CPU-local interrupts:
*/
- if (desc->chip->ack)
+ if (desc->chip->ack) {
desc->chip->ack(irq);
+ /* get new one */
+ desc = irq_remap_to_desc(irq, desc);
+ }
if (likely(!(desc->status & IRQ_DISABLED))) {
action_ret = handle_IRQ_event(irq, desc->action);
if (!noirqdebug)
@@ -349,8 +352,10 @@ unsigned int __do_IRQ(unsigned int irq)
}
spin_lock(&desc->lock);
- if (desc->chip->ack)
+ if (desc->chip->ack) {
desc->chip->ack(irq);
+ desc = irq_remap_to_desc(irq, desc);
+ }
/*
* REPLAY is when Linux resends an IRQ that was dropped earlier
* WAITING is used by probe to mark irqs that are being tested