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Date: Fri, 9 Aug 2013 15:41:09 -0400 From: Chris Metcalf <cmetcalf@...era.com> To: <linux-kernel@...r.kernel.org> Subject: [PATCH] tile: fix panic with large IRQ number The "available_irqs" value needs to actually reflect the IRQs available, not just start as an all-ones mask, since we only have 32 IRQs available even on a 64-bit platform. Signed-off-by: Chris Metcalf <cmetcalf@...era.com> --- arch/tile/kernel/irq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c index c90de6c..0e6c521 100644 --- a/arch/tile/kernel/irq.c +++ b/arch/tile/kernel/irq.c @@ -55,7 +55,8 @@ static DEFINE_PER_CPU(int, irq_depth); /* State for allocating IRQs on Gx. */ #if CHIP_HAS_IPI() -static unsigned long available_irqs = ~(1UL << IRQ_RESCHEDULE); +static unsigned long available_irqs = ((1UL << NR_IRQS) - 1) & + (~(1UL << IRQ_RESCHEDULE)); static DEFINE_SPINLOCK(available_irqs_lock); #endif -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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