linux-kernel - Re: [patch V2 41/46] platform-msi: Provide default irq

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Message-ID: <871rjt2j7s.wl-maz@kernel.org>
Date:   Wed, 26 Aug 2020 22:25:11 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Joerg Roedel <joro@...tes.org>,
        iommu@...ts.linux-foundation.org, linux-hyperv@...r.kernel.org,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Jon Derrick <jonathan.derrick@...el.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Wei Liu <wei.liu@...nel.org>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Steve Wahl <steve.wahl@....com>,
        Dimitri Sivanich <sivanich@....com>,
        Russ Anderson <rja@....com>, linux-pci@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        xen-devel@...ts.xenproject.org, Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Megha Dey <megha.dey@...el.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jacob Pan <jacob.jun.pan@...el.com>,
        Baolu Lu <baolu.lu@...el.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>
Subject: Re: [patch V2 41/46] platform-msi: Provide default irq_chip:: Ack

On Wed, 26 Aug 2020 12:17:09 +0100,
Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> From: Thomas Gleixner <tglx@...utronix.de>
> 
> For the upcoming device MSI support it's required to have a default
> irq_chip::ack implementation (irq_chip_ack_parent) so the drivers do not
> need to care.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> 
> ---
>  drivers/base/platform-msi.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> --- a/drivers/base/platform-msi.c
> +++ b/drivers/base/platform-msi.c
> @@ -95,6 +95,8 @@ static void platform_msi_update_chip_ops
>  		chip->irq_mask = irq_chip_mask_parent;
>  	if (!chip->irq_unmask)
>  		chip->irq_unmask = irq_chip_unmask_parent;
> +	if (!chip->irq_ack)
> +		chip->irq_ack = irq_chip_ack_parent;
>  	if (!chip->irq_eoi)
>  		chip->irq_eoi = irq_chip_eoi_parent;
>  	if (!chip->irq_set_affinity)
> 
> 

Acked-by: Marc Zyngier <maz@...nel.org>

	M.

-- 
Without deviation from the norm, progress is not possible.