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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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e9f95e6373
Fix off-by-one in for_each_irq_desc_reverse(). Impact is near zero in practice, because nothing substantial wants to iterate down to IRQ#0 - but fix it nevertheless. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
25 lines
564 B
C
25 lines
564 B
C
#ifndef _LINUX_IRQNR_H
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#define _LINUX_IRQNR_H
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#ifndef CONFIG_GENERIC_HARDIRQS
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#include <asm/irq.h>
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# define nr_irqs NR_IRQS
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# define for_each_irq_desc(irq, desc) \
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for (irq = 0; irq < nr_irqs; irq++)
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#else
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extern int nr_irqs;
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# define for_each_irq_desc(irq, desc) \
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for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
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# define for_each_irq_desc_reverse(irq, desc) \
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for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1); \
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irq >= 0; irq--, desc--)
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#endif
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#define for_each_irq_nr(irq) \
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for (irq = 0; irq < nr_irqs; irq++)
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#endif
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