linux-kernel - Re: Aw: Re: Re: [PATCH] pci: mediatek: fix warning in msi.h

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Message-ID: <87blgbl887.fsf@nanos.tec.linutronix.de>
Date:   Fri, 06 Nov 2020 00:00:40 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Marc Zyngier <maz@...nel.org>
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Ryder Lee <ryder.lee@...iatek.com>,
        linux-mediatek@...ts.infradead.org,
        Frank Wunderlich <linux@...web.de>,
        linux-kernel@...r.kernel.org,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: Aw: Re:  Re: [PATCH] pci: mediatek: fix warning in msi.h

On Thu, Nov 05 2020 at 09:20, Marc Zyngier wrote:
> On 2020-11-04 23:14, Thomas Gleixner wrote:
>>  	/* Resource alignment requirements */
>>  	resource_size_t (*align_resource)(struct pci_dev *dev,
>
> If that's the direction of travel, we also need something like this
> for configuration where the host bridge relies on an external MSI block
> that uses MSI domains (boot-tested in a GICv3 guest).

Some more context would be helpful. Brain fails to decode the logic
here.