linux-kernel - Re: [PATCH v2 1/5] genirq: introduce irq_domain_translate

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Date:   Wed, 20 Nov 2019 11:48:28 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Marc Zyngier <maz@...nel.org>
cc:     Yash Shah <yash.shah@...ive.com>, linus.walleij@...aro.org,
        bgolaszewski@...libre.com, robh+dt@...nel.org,
        mark.rutland@....com, palmer@...belt.com,
        "Paul Walmsley ( Sifive)" <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, jason@...edaemon.net, bmeng.cn@...il.com,
        atish.patra@....com, Sagar Kadam <sagar.kadam@...ive.com>,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Sachin Ghadi <sachin.ghadi@...ive.com>
Subject: Re: [PATCH v2 1/5] genirq: introduce irq_domain_translate_onecell

On Wed, 20 Nov 2019, Marc Zyngier wrote:

> On 2019-11-20 09:34, Thomas Gleixner wrote:
> > On Wed, 20 Nov 2019, Yash Shah wrote:
> > 
> > > Add a new function irq_domain_translate_onecell() that is to be used as
> > > the translate function in struct irq_domain_ops for the v2 IRQ API.
> > 
> > What is the V2 IRQ API?
> 
> I believe that's a reference to a rather misleading comment in irqdomain.h:
> 
> #ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
> 	/* extended V2 interfaces to support hierarchy irq_domains */
> 
> which we could drop, as everything refers to hierarchical domain
> support.

Yes, which reminds me that we also need to update the horribly stale
documentation of all this mess.

Thanks,

	tglx