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>

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);