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[PATCH] genirq: add handle_bad_irq()

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Handle bad IRQ vectors via the irqchip mechanism.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-06-29 02:24:54 -07:00 committed by Linus Torvalds
parent dd87eb3a24
commit 7a55713ab4
2 changed files with 9 additions and 0 deletions
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8
kernel/irq/autoprobe.c
View File

@ -11,6 +11,8 @@
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/delay.h> #include <linux/delay.h>
#include "internals.h"
/* /*
* Autodetection depends on the fact that any interrupt that * Autodetection depends on the fact that any interrupt that
* comes in on to an unassigned handler will get stuck with * comes in on to an unassigned handler will get stuck with
@ -41,6 +43,12 @@ unsigned long probe_irq_on(void)
spin_lock_irq(&desc->lock); spin_lock_irq(&desc->lock);
if (!desc->action && !(desc->status & IRQ_NOPROBE)) { if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
/*
* An old-style architecture might still have
* the handle_bad_irq handler there:
*/
compat_irq_chip_set_default_handler(desc);
/* /*
* Some chips need to know about probing in * Some chips need to know about probing in
* progress: * progress:

1
kernel/irq/handle.c
View File

@ -46,6 +46,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned = {
[0 ... NR_IRQS-1] = { [0 ... NR_IRQS-1] = {
.status = IRQ_DISABLED, .status = IRQ_DISABLED,
.chip = &no_irq_type, .chip = &no_irq_type,
.handle_irq = handle_bad_irq,
.depth = 1, .depth = 1,
.lock = SPIN_LOCK_UNLOCKED, .lock = SPIN_LOCK_UNLOCKED,
#ifdef CONFIG_SMP #ifdef CONFIG_SMP