From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 28 Oct 2010 02:33:21 +0000 (+0900)
Subject: sh: fix up cpu hotplug IRQ migration for irq_data changes.
X-Git-Tag: v2.6.37-rc1~61^2~1
X-Git-Url: https://bbs.cooldavid.org/git/?a=commitdiff_plain;h=fb41a49d96cd0fb6c63362ff1c8de22e9e7399af;p=net-next-2.6.git

sh: fix up cpu hotplug IRQ migration for irq_data changes.

This fixes up the __cpu_disable() path's IRQ migration for the
irq_data changes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 995301afa36..68ecbe6c881 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -296,13 +296,16 @@ int __init arch_probe_nr_irqs(void)
 #endif
 
 #ifdef CONFIG_HOTPLUG_CPU
-static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int 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, desc->node, cpu);
+	       irq, data->node, cpu);
 
 	raw_spin_lock_irq(&desc->lock);
-	desc->chip->set_affinity(irq, cpumask_of(cpu));
+	chip->irq_set_affinity(data, cpumask_of(cpu), false);
 	raw_spin_unlock_irq(&desc->lock);
 }
 
@@ -313,24 +316,25 @@ static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int cpu)
  */
 void migrate_irqs(void)
 {
-	struct irq_desc *desc;
 	unsigned int irq, cpu = smp_processor_id();
 
-	for_each_irq_desc(irq, desc) {
-		if (desc->node == cpu) {
-			unsigned int newcpu = cpumask_any_and(desc->affinity,
+	for_each_active_irq(irq) {
+		struct irq_data *data = irq_get_irq_data(irq);
+
+		if (data->node == cpu) {
+			unsigned int newcpu = cpumask_any_and(data->affinity,
 							      cpu_online_mask);
 			if (newcpu >= nr_cpu_ids) {
 				if (printk_ratelimit())
 					printk(KERN_INFO "IRQ%u no longer affine to CPU%u\n",
 					       irq, cpu);
 
-				cpumask_setall(desc->affinity);
-				newcpu = cpumask_any_and(desc->affinity,
+				cpumask_setall(data->affinity);
+				newcpu = cpumask_any_and(data->affinity,
 							 cpu_online_mask);
 			}
 
-			route_irq(desc, irq, newcpu);
+			route_irq(data, irq, newcpu);
 		}
 	}
 }