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authorThomas Gleixner <tglx@linutronix.de>2011-02-07 01:24:07 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-19 12:58:12 +0100
commita60a5dc2db3b08b3c2900614c43b1262410c2d8c (patch)
tree74fc245bc6ddc7c134daa29bab83e43dd8258611 /kernel/irq/chip.c
parenta7ae4de5c8ae8110556f0f9c7241093ef984605c (diff)
downloadop-kernel-dev-a60a5dc2db3b08b3c2900614c43b1262410c2d8c.zip
op-kernel-dev-a60a5dc2db3b08b3c2900614c43b1262410c2d8c.tar.gz
genirq: Use handle_irq_event() in handle_edge_irq()
It's safe to drop the IRQ_INPROGRESS flag between action chain walks as we are protected by desc->lock. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r--kernel/irq/chip.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index a499ca5..3ccff4d 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -583,14 +583,8 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
/* Start handling the irq */
desc->irq_data.chip->irq_ack(&desc->irq_data);
- /* Mark the IRQ currently in progress.*/
- desc->status |= IRQ_INPROGRESS;
-
do {
- struct irqaction *action = desc->action;
- irqreturn_t action_ret;
-
- if (unlikely(!action)) {
+ if (unlikely(!desc->action)) {
mask_irq(desc);
goto out_unlock;
}
@@ -606,16 +600,10 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
unmask_irq(desc);
}
- desc->status &= ~IRQ_PENDING;
- raw_spin_unlock(&desc->lock);
- action_ret = handle_IRQ_event(irq, action);
- if (!noirqdebug)
- note_interrupt(irq, desc, action_ret);
- raw_spin_lock(&desc->lock);
+ handle_irq_event(desc);
} while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING);
- desc->status &= ~IRQ_INPROGRESS;
out_unlock:
raw_spin_unlock(&desc->lock);
}
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