linux-kernel - RE: [PATCH V4 02/11] vfio/pci: Remove negative check on unsigned vector

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Message-ID: <BN9PR11MB5276DC8D4CE6751954C9501E8C6B9@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Fri, 28 Apr 2023 06:29:13 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     "Chatre, Reinette" <reinette.chatre@...el.com>,
        "jgg@...dia.com" <jgg@...dia.com>,
        "yishaih@...dia.com" <yishaih@...dia.com>,
        "shameerali.kolothum.thodi@...wei.com" 
        <shameerali.kolothum.thodi@...wei.com>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>
CC:     "tglx@...utronix.de" <tglx@...utronix.de>,
        "darwi@...utronix.de" <darwi@...utronix.de>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "Jiang, Dave" <dave.jiang@...el.com>,
        "Liu, Jing2" <jing2.liu@...el.com>,
        "Raj, Ashok" <ashok.raj@...el.com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        "tom.zanussi@...ux.intel.com" <tom.zanussi@...ux.intel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH V4 02/11] vfio/pci: Remove negative check on unsigned
 vector

> From: Chatre, Reinette <reinette.chatre@...el.com>
> Sent: Friday, April 28, 2023 1:36 AM
> 
> User space provides the vector as an unsigned int that is checked
> early for validity (vfio_set_irqs_validate_and_prepare()).
> 
> A later negative check of the provided vector is not necessary.
> 
> Remove the negative check and ensure the type used
> for the vector is consistent as an unsigned int.
> 
> Signed-off-by: Reinette Chatre <reinette.chatre@...el.com>

Reviewed-by: Kevin Tian <kevin.tian@...el.com>