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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@tilera.com>
This commit is contained in:
Chris Metcalf 2013-08-09 15:41:09 -04:00
parent d4d9eab4ad
commit 8d8cf06740
1 changed files with 2 additions and 1 deletions
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3
arch/tile/kernel/irq.c
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@ -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