函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\chip.c Create Date:2022-07-27 11:11:35
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：handle_untracked_irq - Simple and software-decoded IRQs.*@desc: the interrupt description structure for this irq* Untracked interrupts are sent from a demultiplexing interrupt* handler when the demultiplexer does not know which device it its

函数原型：void handle_untracked_irq(struct irq_desc *desc)

返回类型：void

参数：

类型参数名称
struct irq_desc *desc
575  flags等于0
577  raw_spin_lock( & 自旋锁)
579  如果非irq_may_run(desc)则转到:out_unlock
582  istate与等于IRQS_REPLAY按位或IRQS_WAITING的值的反
584  如果此条件成立可能性小(为编译器优化)(!中断服务例程链表 || irqd_irq_disabled( & irq_data))则
585  istate或等于IRQS_PENDING
586  转到:out_unlock
589  istate与等于IRQS_PENDING的反
590  设置中断标志
591  raw_spin_unlock( & 自旋锁)
593  __handle_irq_event_percpu(desc, & flags)
595  raw_spin_lock( & 自旋锁)
596  清除中断标志
598  out_unlock :
599  raw_spin_unlock( & 自旋锁)