There is no point in having an incomplete copy of irq_set_affinity()
for the hotplug irq migration code.
Use the core function instead and while at it switch to
for_each_active_irq()
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: James Hogan <james.hogan@xxxxxxxxxx>
Cc: metag <linux-metag@xxxxxxxxxxxxxxx>
---
arch/metag/kernel/irq.c | 20 +++-----------------
1 file changed, 3 insertions(+), 17 deletions(-)
Index: tip/arch/metag/kernel/irq.c
===================================================================
--- tip.orig/arch/metag/kernel/irq.c
+++ tip/arch/metag/kernel/irq.c
@@ -261,18 +261,6 @@ int __init arch_probe_nr_irqs(void)
}
#ifdef CONFIG_HOTPLUG_CPU
-static void route_irq(struct irq_data *data, unsigned int irq, unsigned int cpu)
-{
- struct irq_desc *desc = irq_to_desc(irq);
- struct irq_chip *chip = irq_data_get_irq_chip(data);
- unsigned long flags;
-
- raw_spin_lock_irqsave(&desc->lock, flags);
- if (chip->irq_set_affinity)
- chip->irq_set_affinity(data, cpumask_of(cpu), false);
- raw_spin_unlock_irqrestore(&desc->lock, flags);
-}
-
/*
* The CPU has been marked offline. Migrate IRQs off this CPU. If
* the affinity settings do not allow other CPUs, force them onto any
@@ -281,10 +269,9 @@ static void route_irq(struct irq_data *d
void migrate_irqs(void)
{
unsigned int i, cpu = smp_processor_id();
- struct irq_desc *desc;
- for_each_irq_desc(i, desc) {
- struct irq_data *data = irq_desc_get_irq_data(desc);
+ for_each_active_irq(i) {
+ struct irq_data *data = irq_get_irq_data(i);
unsigned int newcpu;
if (irqd_is_per_cpu(data))
@@ -303,8 +290,7 @@ void migrate_irqs(void)
newcpu = cpumask_any_and(data->affinity,
cpu_online_mask);
}
-
- route_irq(data, i, newcpu);
+ irq_set_affinity(i, cpumask_of(newcpu));
}
}
#endif /* CONFIG_HOTPLUG_CPU */
--
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