linux-kernel - Re: [PATCH v11 06/10] genirq/msi-doorbell: msi_doorbell

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Message-ID: <alpine.DEB.2.11.1607201010350.3564@nanos>
Date:	Wed, 20 Jul 2016 10:12:18 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Eric Auger <eric.auger@...hat.com>
cc:	eric.auger.pro@...il.com, marc.zyngier@....com,
	christoffer.dall@...aro.org, andre.przywara@....com,
	robin.murphy@....com, alex.williamson@...hat.com,
	will.deacon@....com, joro@...tes.org, jason@...edaemon.net,
	linux-arm-kernel@...ts.infradead.org, drjones@...hat.com,
	kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org,
	pbonzini@...hat.com, linux-kernel@...r.kernel.org,
	Bharat.Bhushan@...escale.com, pranav.sawargaonkar@...il.com,
	p.fedin@...sung.com, iommu@...ts.linux-foundation.org,
	Jean-Philippe.Brucker@....com, yehuday@...vell.com,
	Manish.Jaggi@...iumnetworks.com, robert.richter@...iumnetworks.com
Subject: Re: [PATCH v11 06/10] genirq/msi-doorbell: msi_doorbell_safe

On Tue, 19 Jul 2016, Eric Auger wrote:
> +bool msi_doorbell_safe(void)
> +{
> +	struct irqchip_doorbell *db;
> +	bool irq_remapping = true;
> +
> +	mutex_lock(&irqchip_doorbell_mutex);
> +	list_for_each_entry(db, &irqchip_doorbell_list, next) {
> +		irq_remapping &= db->info.irq_remapping;

db->info.irq_remapping is set in msi_doorbell_register(). So you can keep book
about that there. No need to iterate here.

Thanks,

	tglx