diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/chip.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 10e006643c8..cc54c627635 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -589,3 +589,39 @@ set_irq_chip_and_handler_name(unsigned int irq, struct irq_chip *chip, set_irq_chip(irq, chip); __set_irq_handler(irq, handle, 0, name); } + +void __init set_irq_noprobe(unsigned int irq) +{ + struct irq_desc *desc; + unsigned long flags; + + if (irq >= NR_IRQS) { + printk(KERN_ERR "Trying to mark IRQ%d non-probeable\n", irq); + + return; + } + + desc = irq_desc + irq; + + spin_lock_irqsave(&desc->lock, flags); + desc->status |= IRQ_NOPROBE; + spin_unlock_irqrestore(&desc->lock, flags); +} + +void __init set_irq_probe(unsigned int irq) +{ + struct irq_desc *desc; + unsigned long flags; + + if (irq >= NR_IRQS) { + printk(KERN_ERR "Trying to mark IRQ%d probeable\n", irq); + + return; + } + + desc = irq_desc + irq; + + spin_lock_irqsave(&desc->lock, flags); + desc->status &= ~IRQ_NOPROBE; + spin_unlock_irqrestore(&desc->lock, flags); +} |