函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\irqdesc.c Create Date:2022-07-27 11:08:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：free_desc

函数原型：static void free_desc(unsigned int irq)

返回类型：void

参数：

类型参数名称
unsigned intirq
589  desc等于中断转换为描述
592  raw_spin_lock_irqsave( & 自旋锁, flags)
593  desc_set_defaults(irq, desc, irq_desc_get_node(desc), NULL, NULL)
594  raw_spin_unlock_irqrestore( & 自旋锁, flags)
调用者
名称描述
irq_free_descsq_free_descs - free irq descriptors*@from: Start of descriptor range*@cnt: Number of consecutive irqs to free