linux-kernel - RE: [patch 17/20] platform-msi: Switch to the domain id aware MSI interfaces

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Message-ID: <BN9PR11MB5276453E63A0C02A4BB386F58C099@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Fri, 18 Nov 2022 08:53:07 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
CC:     "x86@...nel.org" <x86@...nel.org>, Joerg Roedel <joro@...tes.org>,
        "Will Deacon" <will@...nel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "Lorenzo Pieralisi" <lorenzo.pieralisi@....com>,
        Marc Zyngier <maz@...nel.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        Jason Gunthorpe <jgg@...lanox.com>,
        "Jiang, Dave" <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        "Williams, Dan J" <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        "Raj, Ashok" <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>,
        "Ahmed S. Darwish" <darwi@...utronix.de>,
        "Chatre, Reinette" <reinette.chatre@...el.com>
Subject: RE: [patch 17/20] platform-msi: Switch to the domain id aware MSI
 interfaces

> From: Thomas Gleixner <tglx@...utronix.de>
> Sent: Friday, November 11, 2022 9:57 PM
> 
> From: Ahmed S. Darwish <darwi@...utronix.de>
> 
> Switch to the new domain id aware interfaces to phase out the previous
> ones. No functional change.
> 
> Signed-off-by: Ahmed S. Darwish <darwi@...utronix.de>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> ---
>  drivers/base/platform-msi.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> --- a/drivers/base/platform-msi.c
> +++ b/drivers/base/platform-msi.c
> @@ -213,7 +213,7 @@ int platform_msi_domain_alloc_irqs(struc
>  	if (err)
>  		return err;
> 
> -	err = msi_domain_alloc_irqs(dev->msi.domain, dev, nvec);
> +	err = msi_domain_alloc_irqs_range(dev, MSI_DEFAULT_DOMAIN, 0,
> nvec - 1);
>  	if (err)
>  		platform_msi_free_priv_data(dev);
> 

Out of curiosity. Why don't we provide an unlocked version of
msi_domain_alloc_irqs_all()?