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    Subject[tip: irq/msi] genirq/irqdomain: Remove the param count restriction from select()
    The following commit has been merged into the irq/msi branch of tip:

    Commit-ID: de1ff306dcf4546d6a8863b1f956335e0d3fbb9b
    Gitweb: https://git.kernel.org/tip/de1ff306dcf4546d6a8863b1f956335e0d3fbb9b
    Author: Thomas Gleixner <tglx@linutronix.de>
    AuthorDate: Sat, 27 Jan 2024 21:47:30 +05:30
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitterDate: Thu, 15 Feb 2024 17:55:39 +01:00

    genirq/irqdomain: Remove the param count restriction from select()

    Now that the GIC-v3 callback can handle invocation with a fwspec parameter
    count of 0 lift the restriction in the core code and invoke select()
    unconditionally when the domain provides it.

    Preparatory change for per device MSI domains.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Anup Patel <apatel@ventanamicro.com>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Link: https://lore.kernel.org/r/20240127161753.114685-3-apatel@ventanamicro.com

    ---
    kernel/irq/irqdomain.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
    index 0bdef4f..8fee379 100644
    --- a/kernel/irq/irqdomain.c
    +++ b/kernel/irq/irqdomain.c
    @@ -448,7 +448,7 @@ struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec,
    */
    mutex_lock(&irq_domain_mutex);
    list_for_each_entry(h, &irq_domain_list, link) {
    - if (h->ops->select && fwspec->param_count)
    + if (h->ops->select)
    rc = h->ops->select(h, fwspec, bus_token);
    else if (h->ops->match)
    rc = h->ops->match(h, to_of_node(fwnode), bus_token);
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