The IRQF_DISABLED is a NOOP and scheduled to be removed. According to Ingo Molnar (e58aa3d2d0cc01ad8d6f7f640a0670433f794922) running IRQ handlers with interrupts enabled can cause stack overflows when the interrupt line of the issuing device is still active. Signed-off-by: Valentin Rothberg <Valentin.Rothberg@xxxxxxx> --- arch/mips/loongson/loongson-3/hpet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/loongson/loongson-3/hpet.c b/arch/mips/loongson/loongson-3/hpet.c index e898d68..5c21cd3 100644 --- a/arch/mips/loongson/loongson-3/hpet.c +++ b/arch/mips/loongson/loongson-3/hpet.c @@ -162,7 +162,7 @@ static irqreturn_t hpet_irq_handler(int irq, void *data) static struct irqaction hpet_irq = { .handler = hpet_irq_handler, - .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER, + .flags = IRQF_NOBALANCING | IRQF_TIMER, .name = "hpet", }; -- 1.9.1