[PATCH 3/7] genirq/affinity: factor out a irq_affinity_set helper

[Thomas Gleixner]

On Fri, 19 May 2017, Christoph Hellwig wrote:

> Factor out code from the x86 cpu hot plug code to program the affinity
> for a vector for a hot plug / hot unplug event.
> +bool irq_affinity_set(int irq, struct irq_desc *desc, const cpumask_t *mask)
> +{
> +	struct irq_data *data = irq_desc_get_irq_data(desc);
> +	struct irq_chip *chip = irq_data_get_irq_chip(data);
> +	bool ret = false;
> +
> +	if (!irqd_can_move_in_process_context(data) && chip->irq_mask)

Using that inline directly will make this function useless on architectures
which have GENERIC_PENDING_IRQS not set.

kernel/irq/manage.c has that wrapped. We need to move those wrappers to the
internal header file, so that it gets compiled out on other platforms.

Thanks,

	tglx