irq_data_to_desc

函数名称：irq_data_to_desc

函数原型：static inline struct irq_desc *irq_data_to_desc(struct irq_data *data)

返回类型：struct irq_desc

参数：

类型	参数	名称
struct irq_data *	data

122

返回:container_of - cast a member of a structure out to the containing structure*@ptr: the pointer to the member.*@type: the type of the container struct this is embedded in.*@member: the name of the member within the struct.(共享数据指针, structirq_desc, irq_common_data)

**调用者**
名称	描述
apic_update_vector
ack_bad	What should we do if we get a hw irq event on an illegal vector?* Each architecture has to answer this themself.
irq_setup_alt_chip	q_setup_alt_chip - Switch to alternative chip@d: irq_data for this interrupt@type: Flow type to be initialized* Only to be called from chip->irq_set_type() callbacks.
irq_move_masked_irq
__irq_move_irq
irq_set_handler_locked	q_set_handler_locked - Set irq handler from a locked region@data: Pointer to the irq_data structure which identifies the irq@handler: Flow control handler function for this interrupt* Sets the handler in the irq descriptor associated to @data.
irq_set_chip_handler_name_locked	q_set_chip_handler_name_locked - Set chip, handler and name from a locked region@data: Pointer to the irq_data structure for which the chip is set@chip: Pointer to the new irq chip@handler: Flow control handler function for this interrupt@name: Name

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