linux-kernel - Re: [PATCH 8/9] vfio/pci: use x86 naming instead of igd

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Date:   Tue, 2 Feb 2021 15:05:11 -0400
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Christoph Hellwig <hch@...radead.org>
CC:     Alex Williamson <alex.williamson@...hat.com>,
        Max Gurtovoy <mgurtovoy@...dia.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Matthew Rosato <mjrosato@...ux.ibm.com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <liranl@...dia.com>,
        <oren@...dia.com>, <tzahio@...dia.com>, <leonro@...dia.com>,
        <yarong@...dia.com>, <aviadye@...dia.com>, <shahafs@...dia.com>,
        <artemp@...dia.com>, <kwankhede@...dia.com>, <ACurrid@...dia.com>,
        <gmataev@...dia.com>, <cjia@...dia.com>, <yishaih@...dia.com>,
        <aik@...abs.ru>
Subject: Re: [PATCH 8/9] vfio/pci: use x86 naming instead of igd

On Tue, Feb 02, 2021 at 06:55:18PM +0000, Christoph Hellwig wrote:
> On Tue, Feb 02, 2021 at 02:50:17PM -0400, Jason Gunthorpe wrote:
> > For uAPI compatability vfio_pci.ko would need some
> > request_module()/symbol_get() trick to pass control over to the device
> > specific module.
> 
> Err, don't go there.
> 
> Please do the DRIVER_EXPLICIT_BIND_ONLY thing first, which avoids the
> need for such hacks.

Ah, right good point, we don't need to avoid loading the nvlink.ko if
loading it is harmless.

Jason