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mn10300: Cleanup irq_desc access 

The migration needs only access to irq_data.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-03-24 17:36:37 +01:00
parent f4c547ebb4
commit 232f1d8591
1 changed files with 5 additions and 6 deletions
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11
arch/mn10300/kernel/irq.c
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@ -403,23 +403,22 @@ int show_interrupts(struct seq_file *p, void *v)
#ifdef CONFIG_HOTPLUG_CPU
void migrate_irqs(void)
{
irq_desc_t *desc;
int irq;
unsigned int self, new;
unsigned long flags;
self = smp_processor_id();
for (irq = 0; irq < NR_IRQS; irq++) {
desc = irq_desc + irq;
struct irq_data *data = irq_get_irq_data(irq);
if (desc->status == IRQ_PER_CPU)
if (irqd_is_per_cpu(data))
continue;
if (cpu_isset(self, irq_desc[irq].affinity) &&
if (cpu_isset(self, data->affinity) &&
!cpus_intersects(irq_affinity[irq], cpu_online_map)) {
int cpu_id;
cpu_id = first_cpu(cpu_online_map);
cpu_set(cpu_id, irq_desc[irq].affinity);
cpu_set(cpu_id, data->affinity);
}
/* We need to operate irq_affinity_online atomically. */
arch_local_cli_save(flags);
@ -430,7 +429,7 @@ void migrate_irqs(void)
GxICR(irq) = x & GxICR_LEVEL;
tmp = GxICR(irq);
new = any_online_cpu(irq_desc[irq].affinity);
new = any_online_cpu(data->affinity);
irq_affinity_online[irq] = new;
CROSS_GxICR(irq, new) =