[patch 05/26] sh: Use irq_set_affinity instead of homebrewn code

From: Thomas Gleixner
Date: Sun Feb 23 2014 - 16:41:56 EST


There is no point in having an incomplete copy of irq_set_affinity()
for the hotplug irq migration code.

Use the core function instead.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: sh <linux-sh@xxxxxxxxxxxxxxx>
---
arch/sh/kernel/irq.c | 16 +---------------
1 file changed, 1 insertion(+), 15 deletions(-)

Index: tip/arch/sh/kernel/irq.c
===================================================================
--- tip.orig/arch/sh/kernel/irq.c
+++ tip/arch/sh/kernel/irq.c
@@ -217,19 +217,6 @@ 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);
-
- printk(KERN_INFO "IRQ%u: moving from cpu%u to cpu%u\n",
- irq, data->node, cpu);
-
- raw_spin_lock_irq(&desc->lock);
- chip->irq_set_affinity(data, cpumask_of(cpu), false);
- raw_spin_unlock_irq(&desc->lock);
-}
-
/*
* The CPU has been marked offline. Migrate IRQs off this CPU. If
* the affinity settings do not allow other CPUs, force them onto any
@@ -253,8 +240,7 @@ void migrate_irqs(void)
newcpu = cpumask_any_and(data->affinity,
cpu_online_mask);
}
-
- route_irq(data, irq, newcpu);
+ irq_set_affinity(irq, cpumask_of(newcpu));
}
}
}


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