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include/linux/irqnr.h
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#ifndef _LINUX_IRQNR_H #define _LINUX_IRQNR_H |
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/* * Generic irq_desc iterators: */ #ifdef __KERNEL__ |
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#ifndef CONFIG_GENERIC_HARDIRQS #include <asm/irq.h> |
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/* * Wrappers for non-genirq architectures: */ #define nr_irqs NR_IRQS #define irq_to_desc(irq) (&irq_desc[irq]) |
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# define for_each_irq_desc(irq, desc) \ for (irq = 0; irq < nr_irqs; irq++) |
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# define for_each_irq_desc_reverse(irq, desc) \ for (irq = nr_irqs - 1; irq >= 0; irq--) |
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#else /* CONFIG_GENERIC_HARDIRQS */ |
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extern int nr_irqs; |
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extern struct irq_desc *irq_to_desc(unsigned int irq); |
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# define for_each_irq_desc(irq, desc) \ for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ |
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irq++, desc = irq_to_desc(irq)) \ |
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if (!desc) \ ; \ else |
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# define for_each_irq_desc_reverse(irq, desc) \ for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ |
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irq--, desc = irq_to_desc(irq)) \ |
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if (!desc) \ ; \ else |
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#ifdef CONFIG_SMP #define irq_node(irq) (irq_to_desc(irq)->node) #else #define irq_node(irq) 0 #endif |
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#endif /* CONFIG_GENERIC_HARDIRQS */ |
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#define for_each_irq_nr(irq) \ for (irq = 0; irq < nr_irqs; irq++) |
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#endif /* __KERNEL__ */ |
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#endif |