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genirq: Provide default irq init flags

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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>
This commit is contained in:
Thomas Gleixner 2010-09-27 21:01:37 +02:00
parent d895f51ebb
commit 1318a481fc
3 changed files with 10 additions and 4 deletions
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6
include/linux/irq.h
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@ -214,6 +214,12 @@ struct irq_chip {
*/
#include <asm/hw_irq.h>
#ifndef ARCH_IRQ_INIT_FLAGS
# define ARCH_IRQ_INIT_FLAGS 0
#endif
#define IRQ_DEFAULT_INIT_FLAGS (IRQ_DISABLED | ARCH_IRQ_INIT_FLAGS)
struct irqaction;
extern int setup_irq(unsigned int irq, struct irqaction *new);
extern void remove_irq(unsigned int irq, struct irqaction *act);