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    Subject[PATCH v2 3/7] irqdomain: Make irq_domain_alloc_irqs_recursive available
    Date
    We are soon going to need the MSI layer to call into the domain
    allocators. Instead of open coding this, make the standard
    irq_domain_alloc_irqs_recursive function available to the MSI
    layer.

    Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
    ---
    include/linux/irqdomain.h | 3 +++
    kernel/irq/irqdomain.c | 6 +++---
    2 files changed, 6 insertions(+), 3 deletions(-)

    diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
    index d5e5c5b..cf96c6a 100644
    --- a/include/linux/irqdomain.h
    +++ b/include/linux/irqdomain.h
    @@ -367,6 +367,9 @@ static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
    return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false);
    }

    +extern int irq_domain_alloc_irqs_recursive(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,
    unsigned int virq,
    irq_hw_number_t hwirq,
    diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
    index 22aa961..1c9973e 100644
    --- a/kernel/irq/irqdomain.c
    +++ b/kernel/irq/irqdomain.c
    @@ -1125,9 +1125,9 @@ static void irq_domain_free_irqs_recursive(struct irq_domain *domain,
    }
    }

    -static int irq_domain_alloc_irqs_recursive(struct irq_domain *domain,
    - unsigned int irq_base,
    - unsigned int nr_irqs, void *arg)
    +int irq_domain_alloc_irqs_recursive(struct irq_domain *domain,
    + unsigned int irq_base,
    + unsigned int nr_irqs, void *arg)
    {
    int ret = 0;
    struct irq_domain *parent = domain->parent;
    --
    2.1.4


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