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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-03-22 10:22:58 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-03-22 10:22:58 +0000 |
| commit | bec1b8193651ea4394cc4d6e18152cb83e735f93 (patch) | |
| tree | 7df3c9603a745b9f390a9132837c6909c4b96db3 | |
| parent | 58e9ff56382bdce340d50b6ff22c422dc617106c (diff) | |
| download | blackbird-op-linux-bec1b8193651ea4394cc4d6e18152cb83e735f93.tar.gz blackbird-op-linux-bec1b8193651ea4394cc4d6e18152cb83e735f93.zip | |
[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>
| -rw-r--r-- | arch/arm/kernel/irq.c | 11 | ||||
| -rw-r--r-- | include/asm-arm/mach/irq.h | 1 |
2 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 1d50d2b98f55..2d5896b36181 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -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); diff --git a/include/asm-arm/mach/irq.h b/include/asm-arm/mach/irq.h index 76d05244c632..d4d420ecf3a8 100644 --- a/include/asm-arm/mach/irq.h +++ b/include/asm-arm/mach/irq.h @@ -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 |
