From 2ef75701d1711a1feee2a82b42a2597ddc05f88b Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 21 Jul 2011 14:51:13 +0100 Subject: [PATCH] ARM: CPU hotplug: fix abuse of irqdesc->node irqdesc's node member is supposed to mark the numa node number for the interrupt. Our use of it is non-standard. Remove this, replacing the functionality with a test of the affinity mask. Signed-off-by: Russell King --- arch/arm/common/gic.c | 1 - arch/arm/kernel/irq.c | 10 ++-------- 2 files changed, 2 insertions(+), 9 deletions(-) diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 4ddd0a6..635d985 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -189,7 +189,6 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val, bit = 1 << (cpu + shift); spin_lock(&irq_controller_lock); - d->node = cpu; val = readl_relaxed(reg) & ~mask; writel_relaxed(val | bit, reg); spin_unlock(&irq_controller_lock); diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 83bbad0..d7aa5c9 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -166,15 +166,9 @@ void migrate_irqs(void) bool affinity_broken = false; raw_spin_lock(&desc->lock); - do { - if (desc->action == NULL) - break; - - if (d->node != cpu) - break; - + if (desc->action != NULL && + cpumask_test_cpu(smp_processor_id(), d->affinity)) affinity_broken = migrate_one_irq(d); - } while (0); raw_spin_unlock(&desc->lock); if (affinity_broken && printk_ratelimit()) -- 2.7.4