LXR linux/include/linux/irqnr.h

   1#ifndef _LINUX_IRQNR_H
   2#define _LINUX_IRQNR_H
   3
   4#include <uapi/linux/irqnr.h>
   5
   6
   7extern int nr_irqs;
   8extern struct irq_desc *irq_to_desc(unsigned int irq);
   9unsigned int irq_get_next_irq(unsigned int offset);
  10
  11# define for_each_irq_desc(irq, desc)                                   \
  12        for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs;           \
  13             irq++, desc = irq_to_desc(irq))                            \
  14                if (!desc)                                              \
  15                        ;                                               \
  16                else
  17
  18
  19# define for_each_irq_desc_reverse(irq, desc)                           \
  20        for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0;      \
  21             irq--, desc = irq_to_desc(irq))                            \
  22                if (!desc)                                              \
  23                        ;                                               \
  24                else
  25
  26# define for_each_active_irq(irq)                       \
  27        for (irq = irq_get_next_irq(0); irq < nr_irqs;  \
  28             irq = irq_get_next_irq(irq + 1))
  29
  30#define for_each_irq_nr(irq)                   \
  31       for (irq = 0; irq < nr_irqs; irq++)
  32
  33#endif
  34