1. 根目录:
2. arch
3. arm64
4. include
5. asm
6. irq_work.h

#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H

#include <asm/smp.h>

static inline bool arch_irq_work_has_interrupt(void)
{
	return !!__smp_cross_call;
}

#endif /* __ASM_IRQ_WORK_H */