linux-kernel - Re: [PATCH 7/7] iommu: Add iommu_domain::domain

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Message-ID: <20220124172418.GE966497@nvidia.com>
Date:   Mon, 24 Jan 2022 13:24:18 -0400
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Ben Skeggs <bskeggs@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Ashok Raj <ashok.raj@...el.com>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Eric Auger <eric.auger@...hat.com>,
        Liu Yi L <yi.l.liu@...el.com>,
        Jacob jun Pan <jacob.jun.pan@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] iommu: Add iommu_domain::domain_ops

On Mon, Jan 24, 2022 at 01:37:21AM -0800, Christoph Hellwig wrote:
> On Mon, Jan 24, 2022 at 03:11:02PM +0800, Lu Baolu wrote:
> > Add a domain specific callback set, domain_ops, for vendor iommu driver
> > to provide domain specific operations. Move domain-specific callbacks
> > from iommu_ops to the domain_ops and hook them when a domain is allocated.
> 
> Ah, that's what I meant earlier.  Perfect!
> 
> Nit:  I don't think vendor is the right term here.

+1 please don't use the confusing 'vendor' in the kernel, if you feel
you want to write 'vendor' writing 'device driver' is usually a good
choice..

This whole series is nice, the few small notes aside, thanks for
making it!

Jason