setup_percpu

函数名称：setup_percpu_irq - setup a per-cpu interrupt*@irq: Interrupt line to setup*@act: irqaction for the interrupt* Used to statically setup per-cpu interrupts in the early boot process.

函数原型：int setup_percpu_irq(unsigned int irq, struct irqaction *act)

返回类型：int

参数：

类型	参数	名称
unsigned int	irq
struct irqaction *	act

2373

desc等于中断转换为描述

2376

如果非desc或非irq_settings_is_per_cpu_devid(desc)则返回:负EINVAL

2379

retval等于q_chip_pm_get - Enable power for an IRQ chip*@data: Pointer to interrupt specific data* Enable the power to the IRQ chip referenced by the interrupt data* structure.

2380

如果retval小于0则返回:retval

2383

retval等于注册中断

2385

如果retval则q_chip_pm_put - Disable power for an IRQ chip*@data: Pointer to interrupt specific data* Disable the power to the IRQ chip referenced by the interrupt data* structure, belongs. Note that power will only be disabled, once this

2388

返回:retval

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