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genirq: Simplify irq_data_to_desc()

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Avoid the lookup of irq_desc and use the same mechanism for
hierarchical and flat irqdomains.

Based-on-a-patch-from: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2015-09-16 14:37:12 +02:00
parent 123236ccac
commit 755d119a62
1 changed files with 1 additions and 5 deletions

6
include/linux/irqdesc.h
View File

@ -98,11 +98,7 @@ extern struct irq_desc irq_desc[NR_IRQS];
static inline struct irq_desc *irq_data_to_desc(struct irq_data *data) static inline struct irq_desc *irq_data_to_desc(struct irq_data *data)
{ {
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY return container_of(data->common, struct irq_desc, irq_common_data);
return irq_to_desc(data->irq);
#else
return container_of(data, struct irq_desc, irq_data);
#endif
} }
static inline unsigned int irq_desc_get_irq(struct irq_desc *desc) static inline unsigned int irq_desc_get_irq(struct irq_desc *desc)