diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2014-02-23 22:40:10 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-03-04 17:37:55 +0100 |
| commit | b58d971da3433654787a88c40c6fca00f5bbaa04 (patch) | |
| tree | 4c4cb014db37762b43674c2814593860e27d088c /arch/xtensa/kernel/irq.c | |
| parent | irqchip: xtensa: Select only an online cpu (diff) | |
| download | linux-b58d971da3433654787a88c40c6fca00f5bbaa04.tar.xz linux-b58d971da3433654787a88c40c6fca00f5bbaa04.zip | |
xtensa: Use irq_set_affinity instead of homebrewn code
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@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: xtensa <linux-xtensa@linux-xtensa.org>
Link: http://lkml.kernel.org/r/20140223212736.664624945@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/xtensa/kernel/irq.c')
| -rw-r--r-- | arch/xtensa/kernel/irq.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c index 482868a2de6e..3eee94f621eb 100644 --- a/arch/xtensa/kernel/irq.c +++ b/arch/xtensa/kernel/irq.c @@ -155,18 +155,6 @@ void __init init_IRQ(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 @@ -175,10 +163,9 @@ static void route_irq(struct irq_data *data, unsigned int irq, unsigned int cpu) 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)) @@ -194,11 +181,8 @@ void migrate_irqs(void) i, cpu); cpumask_setall(data->affinity); - newcpu = cpumask_any_and(data->affinity, - cpu_online_mask); } - - route_irq(data, i, newcpu); + irq_set_affinity(i, data->affinity); } } #endif /* CONFIG_HOTPLUG_CPU */ |