genirq: Provide default irq init flags
Arch code sets it's own irq_desc.status flags right after boot and for
dynamically allocated interrupts. That might involve iterating over a
huge array.
Allow ARCH_IRQ_INIT_FLAGS to set separate flags aside of IRQ_DISABLED
which is the default.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 659be32..3405761 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -31,7 +31,7 @@
/* Ensure we don't have left over values from a previous use of this irq */
raw_spin_lock_irqsave(&desc->lock, flags);
- desc->status = IRQ_DISABLED;
+ desc->status = IRQ_DEFAULT_INIT_FLAGS;
desc->irq_data.chip = &no_irq_chip;
desc->handle_irq = handle_bad_irq;
desc->depth = 1;