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[ARM] Quieten spurious IRQ detection 

Only issue a "nobody cared" warning after 99900 spurious interrupts.
This avoids the occasional spurious interrupt causing warnings, as
per x86.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-03-22 10:22:58 +00:00 committed by Russell King
parent 58e9ff5638
commit bec1b81936
2 changed files with 9 additions and 3 deletions
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11
arch/arm/kernel/irq.c
View File

@ -305,14 +305,19 @@ report_bad_irq(unsigned int irq, struct pt_regs *regs, struct irqdesc *desc, int
static int count = 100;
struct irqaction *action;
if (!count || noirqdebug)
if (noirqdebug)
return;
count--;
if (ret != IRQ_HANDLED && ret != IRQ_NONE) {
if (!count)
return;
count--;
printk("irq%u: bogus retval mask %x\n", irq, ret);
} else {
desc->irqs_unhandled++;
if (desc->irqs_unhandled <= 99900)
return;
desc->irqs_unhandled = 0;
printk("irq%u: nobody cared\n", irq);
}
show_regs(regs);

1
include/asm-arm/mach/irq.h
View File

@ -74,6 +74,7 @@ struct irqdesc {
unsigned int noautoenable : 1; /* don't automatically enable IRQ */
unsigned int unused :25;
unsigned int irqs_unhandled;
struct proc_dir_entry *procdir;
#ifdef CONFIG_SMP