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Message-ID: <BN9PR11MB52769C45692D70021099966D8C139@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Mon, 28 Nov 2022 04:47:42 +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>
Subject: RE: [patch V3 29/33] PCI/MSI: Provide pci_ims_alloc/free_irq()

> From: Thomas Gleixner <tglx@...utronix.de>
> Sent: Friday, November 25, 2022 7:27 AM
> +/**
> + * pci_ims_free_irq - Allocate an interrupt on a PCI/IMS interrupt domain
> + *		      which was allocated via pci_ims_alloc_irq()
> + * @dev:	The PCI device to operate on
> + * @map:	A struct msi_map describing the interrupt to free as
> + *		returned from pci_ims_alloc_irq()
> + */
> +void pci_ims_free_irq(struct pci_dev *dev, struct msi_map map)
> +{
> +	if (WARN_ON_ONCE(map.index < 0 || !map.virq))
> +		return;

"map.virq <= 0"

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