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authorThomas Gleixner <tglx@linutronix.de>2011-03-27 16:05:36 +0200
committerThomas Gleixner <tglx@linutronix.de>2011-03-27 17:45:58 +0200
commitb3d422329f2e061d66af4f933ef316e50e5edcac (patch)
tree530100dd1733e24a017f4b3df4959c667369d236 /kernel
parent0fdb4b259ed3e91b687ac26848202f5e7c217e62 (diff)
downloadlinux-b3d422329f2e061d66af4f933ef316e50e5edcac.tar.bz2
genirq: Add chip flag for restricting cpu_on/offline calls
Add a flag which indicates that the on/offline callback should only be called on enabled interrupts. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/chip.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 44b16a1ecd9a..9283d3300ea9 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -718,8 +718,9 @@ void irq_cpu_online(void)
raw_spin_lock_irqsave(&desc->lock, flags);
chip = irq_data_get_irq_chip(&desc->irq_data);
-
- if (chip && chip->irq_cpu_online)
+ if (chip && chip->irq_cpu_online &&
+ (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
+ !(desc->istate & IRQS_DISABLED)))
chip->irq_cpu_online(&desc->irq_data);
raw_spin_unlock_irqrestore(&desc->lock, flags);
@@ -747,8 +748,9 @@ void irq_cpu_offline(void)
raw_spin_lock_irqsave(&desc->lock, flags);
chip = irq_data_get_irq_chip(&desc->irq_data);
-
- if (chip && chip->irq_cpu_offline)
+ if (chip && chip->irq_cpu_offline &&
+ (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
+ !(desc->istate & IRQS_DISABLED)))
chip->irq_cpu_offline(&desc->irq_data);
raw_spin_unlock_irqrestore(&desc->lock, flags);