函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\irqdomain.c Create Date:2022-07-27 11:14:06
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:q_domain_check_msi_remap - Check whether all MSI irq domains implement* IRQ remapping* Return: false if any MSI irq domain does not support IRQ remapping,* true otherwise (including if there is no MSI irq domain)

函数原型:bool irq_domain_check_msi_remap(void)

返回类型:bool

参数:

431  bool ret = true
433  mutex_lock( & irq_domain_mutex)
435  如果irq_domain_is_msi(h)且非irq_domain_hierarchical_is_msi_remap(h)则
437  ret = false
438  退出
441  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
442  返回:ret