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Message-ID: <ad1dfa58888f82d7cf6fd1b86d2df3821511cf33.camel@infradead.org>
Subject: Re: [patch V3 16/22] genirq/msi: Provide new domain id based
 interfaces for freeing interrupts
From:   David Woodhouse <dwmw2@infradead.org>
To:     Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>,
        Juergen Gross <jgross@suse.com>,
        xen-devel <xen-devel@lists.xen.org>
Cc:     x86@kernel.org, Joerg Roedel <joro@8bytes.org>,
        Will Deacon <will@kernel.org>, linux-pci@vger.kernel.org,
        Bjorn Helgaas <bhelgaas@google.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Marc Zyngier <maz@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jason Gunthorpe <jgg@mellanox.com>,
        Dave Jiang <dave.jiang@intel.com>,
        Alex Williamson <alex.williamson@redhat.com>,
        Kevin Tian <kevin.tian@intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Logan Gunthorpe <logang@deltatee.com>,
        Ashok Raj <ashok.raj@intel.com>, Jon Mason <jdmason@kudzu.us>,
        Allen Hubbe <allenbh@gmail.com>
Date:   Mon, 16 Jan 2023 10:10:39 +0000
In-Reply-To: <1901d84f8f999ac6b2f067360f098828cb8c17cf.camel@infradead.org>
References: <20221124225331.464480443@linutronix.de>
         <20221124230314.337844751@linutronix.de>
         <1901d84f8f999ac6b2f067360f098828cb8c17cf.camel@infradead.org>
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On Mon, 2023-01-16 at 09:56 +0000, David Woodhouse wrote:
>=20
> =C2=A0	msi_for_each_desc(msidesc, &dev->dev, MSI_DESC_ASSOCIATED) {
> -		for (i =3D 0; i < msidesc->nvec_used; i++)
> +		for (i =3D 0; i < msidesc->nvec_used; i++) {
> =C2=A0			xen_destroy_irq(msidesc->irq + i);
> +			msidesc->irq =3D 0;
> +		}
> =C2=A0	}
> =C2=A0}
> =C2=A0

Der, setting it to zero wants to be in the msi_for_each_desc() loop and
*not* in the 'for i' loop of course.

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