LXR linux/include/linux/irqnr.h

   1#ifndef _LINUX_IRQNR_H
   2#define _LINUX_IRQNR_H
   3
   4#ifndef CONFIG_GENERIC_HARDIRQS
   5#include <asm/irq.h>
   6# define nr_irqs                NR_IRQS
   7
   8# define for_each_irq_desc(irq, desc)           \
   9        for (irq = 0; irq < nr_irqs; irq++)
  10#else
  11extern int nr_irqs;
  12
  13# define for_each_irq_desc(irq, desc)           \
  14        for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
  15
  16# define for_each_irq_desc_reverse(irq, desc)                           \
  17        for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1);        \
  18             irq >= 0; irq--, desc--)
  19#endif
  20
  21#define for_each_irq_nr(irq)                    \
  22        for (irq = 0; irq < nr_irqs; irq++)
  23
  24#endif
  25