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genirq/irqdomain: Remove auto-recursive hierarchy support

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It did seem like a good idea at the time, but it never really
caught on, and auto-recursive domains remain unused 3 years after
having been introduced.

Oh well, time for a late spring cleanup.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Marc Zyngier 2017-06-20 22:17:44 +01:00 • committed by Thomas Gleixner
parent 96f0d93a48
commit 6a6544e520
3 changed files with 17 additions and 49 deletions
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9
include/linux/irqdomain.h
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@ -180,8 +180,8 @@ enum {
/* Irq domain is hierarchical */
IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0),
/* Core calls alloc/free recursive through the domain hierarchy. */
IRQ_DOMAIN_FLAG_AUTO_RECURSIVE = (1 << 1),
/* Irq domain name was allocated in __irq_domain_add() */
IRQ_DOMAIN_NAME_ALLOCATED = (1 << 6),
/* Irq domain is an IPI domain with virq per cpu */
IRQ_DOMAIN_FLAG_IPI_PER_CPU = (1 << 2),
@ -195,9 +195,6 @@ enum {
/* Irq domain implements MSI remapping */
IRQ_DOMAIN_FLAG_MSI_REMAP = (1 << 5),
/* Irq domain name was allocated in __irq_domain_add() */
IRQ_DOMAIN_NAME_ALLOCATED = (1 << 6),
/*
* Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
* for implementation specific purposes and ignored by the
@ -448,7 +445,7 @@ static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
NULL);
}
extern int irq_domain_alloc_irqs_recursive(struct irq_domain *domain,
extern int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain,
unsigned int irq_base,
unsigned int nr_irqs, void *arg);
extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain,