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genirq: Provide compat handling for chip->set_affinity()

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Wrap the old chip function set_affinity() until the migration is
complete and the old chip functions are removed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20100927121842.732894108@linutronix.de>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner
2010-09-27 12:45:41 +00:00
parent 37e12df709
commit c96b3b3c44
4 changed files with 19 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
kernel/irq/manage.c
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@@ -74,7 +74,7 @@ int irq_can_set_affinity(unsigned int irq)
struct irq_desc *desc = irq_to_desc(irq);
if (CHECK_IRQ_PER_CPU(desc->status) || !desc->irq_data.chip ||
!desc->irq_data.chip->set_affinity)
!desc->irq_data.chip->irq_set_affinity)
return 0;
return 1;
@@ -109,16 +109,17 @@ void irq_set_thread_affinity(struct irq_desc *desc)
int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
{
struct irq_desc *desc = irq_to_desc(irq);
struct irq_chip *chip = desc->irq_data.chip;
unsigned long flags;
if (!desc->irq_data.chip->set_affinity)
if (!chip->irq_set_affinity)
return -EINVAL;
raw_spin_lock_irqsave(&desc->lock, flags);
#ifdef CONFIG_GENERIC_PENDING_IRQ
if (desc->status & IRQ_MOVE_PCNTXT) {
if (!desc->irq_data.chip->set_affinity(irq, cpumask)) {
if (!chip->irq_set_affinity(&desc->irq_data, cpumask, false)) {
cpumask_copy(desc->irq_data.affinity, cpumask);
irq_set_thread_affinity(desc);
}
@@ -128,7 +129,7 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
cpumask_copy(desc->pending_mask, cpumask);
}
#else
if (!desc->irq_data.chip->set_affinity(irq, cpumask)) {
if (!chip->irq_set_affinity(&desc->irq_data, cpumask, false)) {
cpumask_copy(desc->irq_data.affinity, cpumask);
irq_set_thread_affinity(desc);
}
@@ -177,7 +178,7 @@ static int setup_affinity(unsigned int irq, struct irq_desc *desc)
cpumask_and(desc->irq_data.affinity, cpu_online_mask, irq_default_affinity);
set_affinity:
desc->irq_data.chip->set_affinity(irq, desc->irq_data.affinity);
desc->irq_data.chip->irq_set_affinity(&desc->irq_data, desc->irq_data.affinity, false);
return 0;
}