--- zzzz-none-000/linux-2.6.19.2/arch/mips/kernel/irq.c 2007-01-10 19:10:37.000000000 +0000 +++ davinci-8020-5504/linux-2.6.19.2/arch/mips/kernel/irq.c 2007-01-11 07:38:19.000000000 +0000 @@ -26,48 +26,6 @@ #include #include -static unsigned long irq_map[NR_IRQS / BITS_PER_LONG]; - -int __devinit allocate_irqno(void) -{ - int irq; - -again: - irq = find_first_zero_bit(irq_map, NR_IRQS); - - if (irq >= NR_IRQS) - return -ENOSPC; - - if (test_and_set_bit(irq, irq_map)) - goto again; - - return irq; -} - -EXPORT_SYMBOL_GPL(allocate_irqno); - -/* - * Allocate the 16 legacy interrupts for i8259 devices. This happens early - * in the kernel initialization so treating allocation failure as BUG() is - * ok. - */ -void __init alloc_legacy_irqno(void) -{ - int i; - - for (i = 0; i <= 16; i++) - BUG_ON(test_and_set_bit(i, irq_map)); -} - -void __devinit free_irqno(unsigned int irq) -{ - smp_mb__before_clear_bit(); - clear_bit(irq, irq_map); - smp_mb__after_clear_bit(); -} - -EXPORT_SYMBOL_GPL(free_irqno); - /* * 'what should we do if we get a hw irq event on an illegal vector'. * each architecture has to answer this themselves.