linux-kernel - Re: [PATCH V2] genirq/affinity: add helper of irq_affinity_calc

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Date:   Tue, 20 Jul 2021 09:50:25 +0200
From:   Christoph Hellwig <hch@....de>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <helgaas@...nel.org>, linux-pci@...r.kernel.org,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH V2] genirq/affinity: add helper of
 irq_affinity_calc_sets

> +int irq_affinity_calc_sets(unsigned int affvecs, struct irq_affinity *affd)
> +{
> +	/*
> +	 * Simple invocations do not provide a calc_sets() callback. Call
> +	 * the generic one.
> +	 */
> +	if (!affd->calc_sets)
> +		default_calc_sets(affd, affvecs);
> +	else
> +		affd->calc_sets(affd, affvecs);

Nit: avoid pointless negations:

	if (affd->calc_sets)
		affd->calc_sets(affd, affvecs);
	else
		default_calc_sets(affd, affvecs);

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@....de>