[PATCH 2/4] irqdomain: augment add_simple() to allocate descs

[Paul Mundt]

On Thu, Sep 27, 2012 at 03:13:45PM +0200, Linus Walleij wrote:
> +	if (first_irq > 0) {
> +		int irq_base;
> +
> +		irq_base = irq_alloc_descs(first_irq, 0, size, numa_node_id());
> +		if (irq_base < 0) {
> +			WARN(1, "Cannot allocate irq_descs @ IRQ%d, assuming pre-allocated\n",
> +			     first_irq);
> +			irq_base = first_irq;
> +		}
> +		return irq_domain_add_legacy(of_node, size, irq_base, 0,
>  					     ops, host_data);

If first_irq is specified you presumably want irq_alloc_desc_at()
behaviour, so you should use irq_alloc_descs(first_irq, first_irq, ...),
similar to what irq_create_strict_mappings() does.

Also don't use numa_node_id() for this, of_node_to_nid() handles both the
OF and non-OF cases.