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authorIngo Molnar <mingo@elte.hu>2006-06-29 05:24:54 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-29 13:26:24 -0400
commit7a55713ab456d267815fd5ca3c3d0fd14301f306 (patch)
treea318479efa070eb912fa3dd43738d2b1ae252837 /kernel/irq
parentdd87eb3a24c4527741122713e223d74b85d43c85 (diff)
[PATCH] genirq: add handle_bad_irq()
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>
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/autoprobe.c8
-rw-r--r--kernel/irq/handle.c1
2 files changed, 9 insertions, 0 deletions
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index cfdb63eb5c94..533068cfb607 100644
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -11,6 +11,8 @@
11#include <linux/interrupt.h> 11#include <linux/interrupt.h>
12#include <linux/delay.h> 12#include <linux/delay.h>
13 13
14#include "internals.h"
15
14/* 16/*
15 * Autodetection depends on the fact that any interrupt that 17 * Autodetection depends on the fact that any interrupt that
16 * comes in on to an unassigned handler will get stuck with 18 * comes in on to an unassigned handler will get stuck with
@@ -42,6 +44,12 @@ unsigned long probe_irq_on(void)
42 spin_lock_irq(&desc->lock); 44 spin_lock_irq(&desc->lock);
43 if (!desc->action && !(desc->status & IRQ_NOPROBE)) { 45 if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
44 /* 46 /*
47 * An old-style architecture might still have
48 * the handle_bad_irq handler there:
49 */
50 compat_irq_chip_set_default_handler(desc);
51
52 /*
45 * Some chips need to know about probing in 53 * Some chips need to know about probing in
46 * progress: 54 * progress:
47 */ 55 */
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index a04b516afa59..3a2dbcc9e215 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -46,6 +46,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned = {
46 [0 ... NR_IRQS-1] = { 46 [0 ... NR_IRQS-1] = {
47 .status = IRQ_DISABLED, 47 .status = IRQ_DISABLED,
48 .chip = &no_irq_type, 48 .chip = &no_irq_type,
49 .handle_irq = handle_bad_irq,
49 .depth = 1, 50 .depth = 1,
50 .lock = SPIN_LOCK_UNLOCKED, 51 .lock = SPIN_LOCK_UNLOCKED,
51#ifdef CONFIG_SMP 52#ifdef CONFIG_SMP