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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-05-07 21:54:02 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-05-07 21:55:01 +0100
commitd9cadb0d2ffed847851945a66e80d0b9d767611c (patch)
treee4794d3e8bfc554d6659948344350b5b84a937d8 /arch/arm/mach-ns9xxx/irq.c
parent592eb9997dc89cd0c8f89a505e5348bbddce70f6 (diff)
parent21f20b69a567ca8971fe643d2ebe5d680c9b43af (diff)
Merge branch 'irq-fix' of git://www.modarm9.com/gitsrc/pub/people/ukleinek/linux-2.6.git
Diffstat (limited to 'arch/arm/mach-ns9xxx/irq.c')
-rw-r--r--arch/arm/mach-ns9xxx/irq.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/arm/mach-ns9xxx/irq.c b/arch/arm/mach-ns9xxx/irq.c
index 36e5835e609..ca85d24cf39 100644
--- a/arch/arm/mach-ns9xxx/irq.c
+++ b/arch/arm/mach-ns9xxx/irq.c
@@ -62,7 +62,7 @@ static struct irq_chip ns9xxx_chip = {
#if 0
#define handle_irq handle_level_irq
#else
-void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
+static void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
{
unsigned int cpu = smp_processor_id();
struct irqaction *action;
@@ -70,27 +70,35 @@ void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
spin_lock(&desc->lock);
- if (unlikely(desc->status & IRQ_INPROGRESS))
- goto out_unlock;
+ BUG_ON(desc->status & IRQ_INPROGRESS);
desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
kstat_cpu(cpu).irqs[irq]++;
action = desc->action;
if (unlikely(!action || (desc->status & IRQ_DISABLED)))
- goto out_unlock;
+ goto out_mask;
desc->status |= IRQ_INPROGRESS;
spin_unlock(&desc->lock);
action_ret = handle_IRQ_event(irq, action);
+ /* XXX: There is no direct way to access noirqdebug, so check
+ * unconditionally for spurious irqs...
+ * Maybe this function should go to kernel/irq/chip.c? */
+ note_interrupt(irq, desc, action_ret);
+
spin_lock(&desc->lock);
desc->status &= ~IRQ_INPROGRESS;
- if (!(desc->status & IRQ_DISABLED) && desc->chip->ack)
- desc->chip->ack(irq);
-out_unlock:
+ if (desc->status & IRQ_DISABLED)
+out_mask:
+ desc->chip->mask(irq);
+
+ /* ack unconditionally to unmask lower prio irqs */
+ desc->chip->ack(irq);
+
spin_unlock(&desc->lock);
}
#define handle_irq handle_prio_irq