From 7a55713ab456d267815fd5ca3c3d0fd14301f306 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 29 Jun 2006 02:24:54 -0700 Subject: [PATCH] [PATCH] genirq: add handle_bad_irq() Handle bad IRQ vectors via the irqchip mechanism. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/irq/autoprobe.c | 8 ++++++++ kernel/irq/handle.c | 1 + 2 files changed, 9 insertions(+) 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 @@ #include #include +#include "internals.h" + /* * Autodetection depends on the fact that any interrupt that * 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); 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 * progress: 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 = { [0 ... NR_IRQS-1] = { .status = IRQ_DISABLED, .chip = &no_irq_type, + .handle_irq = handle_bad_irq, .depth = 1, .lock = SPIN_LOCK_UNLOCKED, #ifdef CONFIG_SMP -- 2.20.1