linux-kernel - Re: [PATCH v4 3/7] s390/pci: prepare is_passed

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Message-ID: <5989dc61-d589-aa66-bded-2d30dca4d0df@linux.ibm.com>
Date:   Tue, 17 Jan 2023 10:10:12 -0500
From:   Matthew Rosato <mjrosato@...ux.ibm.com>
To:     Niklas Schnelle <schnelle@...ux.ibm.com>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Wenjia Zhang <wenjia@...ux.ibm.com>
Cc:     Gerd Bayer <gbayer@...ux.ibm.com>,
        Pierre Morel <pmorel@...ux.ibm.com>, iommu@...ts.linux.dev,
        linux-s390@...r.kernel.org, borntraeger@...ux.ibm.com,
        hca@...ux.ibm.com, gor@...ux.ibm.com,
        gerald.schaefer@...ux.ibm.com, agordeev@...ux.ibm.com,
        svens@...ux.ibm.com, linux-kernel@...r.kernel.org,
        Julian Ruess <julianr@...ux.ibm.com>
Subject: Re: [PATCH v4 3/7] s390/pci: prepare is_passed_through() for
 dma-iommu

On 1/4/23 7:05 AM, Niklas Schnelle wrote:
> With the IOMMU always controlled through the IOMMU driver testing for
> zdev->s390_domain is not a valid indication of the device being
> passed-through. Instead test if zdev->kzdev is set.
> 
> Reviewed-by: Pierre Morel <pmorel@...ux.ibm.com>
> Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com>

Reviewed-by: Matthew Rosato <mjrosato@...ux.ibm.com>