genirq: Add irq disabled flag to irq_data state
Some irq_chip implementation require to know the disabled state of the
interrupt in certain callbacks. Add a state flag and accessor to
irq_data.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index c35d74c..0a890bd 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -141,12 +141,14 @@
static void irq_state_clr_disabled(struct irq_desc *desc)
{
desc->istate &= ~IRQS_DISABLED;
+ irqd_clear(&desc->irq_data, IRQD_IRQ_DISABLED);
irq_compat_clr_disabled(desc);
}
static void irq_state_set_disabled(struct irq_desc *desc)
{
desc->istate |= IRQS_DISABLED;
+ irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
irq_compat_set_disabled(desc);
}
@@ -648,8 +650,7 @@
if (handle == handle_bad_irq) {
if (desc->irq_data.chip != &no_irq_chip)
mask_ack_irq(desc);
- irq_compat_set_disabled(desc);
- desc->istate |= IRQS_DISABLED;
+ irq_state_set_disabled(desc);
desc->depth = 1;
}
desc->handle_irq = handle;