18eefedfe8
Impact: cleanup all for_each_irq_desc() usage point have !desc check. then its check can move into for_each_irq_desc() macro. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
42 lines
982 B
C
42 lines
982 B
C
#ifndef _LINUX_IRQNR_H
|
|
#define _LINUX_IRQNR_H
|
|
|
|
/*
|
|
* Generic irq_desc iterators:
|
|
*/
|
|
#ifdef __KERNEL__
|
|
|
|
#ifndef CONFIG_GENERIC_HARDIRQS
|
|
#include <asm/irq.h>
|
|
# define nr_irqs NR_IRQS
|
|
|
|
# define for_each_irq_desc(irq, desc) \
|
|
for (irq = 0; irq < nr_irqs; irq++)
|
|
|
|
# define for_each_irq_desc_reverse(irq, desc) \
|
|
for (irq = nr_irqs - 1; irq >= 0; irq--)
|
|
#else /* CONFIG_GENERIC_HARDIRQS */
|
|
|
|
extern int nr_irqs;
|
|
extern struct irq_desc *irq_to_desc(unsigned int irq);
|
|
|
|
# define for_each_irq_desc(irq, desc) \
|
|
for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \
|
|
irq++, desc = irq_to_desc(irq)) \
|
|
if (desc)
|
|
|
|
|
|
# define for_each_irq_desc_reverse(irq, desc) \
|
|
for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \
|
|
irq--, desc = irq_to_desc(irq)) \
|
|
if (desc)
|
|
|
|
#endif /* CONFIG_GENERIC_HARDIRQS */
|
|
|
|
#define for_each_irq_nr(irq) \
|
|
for (irq = 0; irq < nr_irqs; irq++)
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif
|