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Message-ID: <20200415123140.GC21899@suse.de>
Date:   Wed, 15 Apr 2020 14:31:40 +0200
From:   Joerg Roedel <jroedel@...e.de>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rob Clark <robdclark@...il.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Gerald Schaefer <gerald.schaefer@...ibm.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-s390@...r.kernel.org,
        linux-tegra@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v2 07/33] iommu: Add probe_device() and remove_device()
 call-backs

On Wed, Apr 15, 2020 at 02:36:20PM +0800, Lu Baolu wrote:
> On 2020/4/14 21:15, Joerg Roedel wrote:
> > From: Joerg Roedel<jroedel@...e.de>
> > 
> > Add call-backs to 'struct iommu_ops' as an alternative to the
> > add_device() and remove_device() call-backs, which will be removed when
> > all drivers are converted.
> > 
> > The new call-backs will not setupt IOMMU groups and domains anymore,
> > so also add a probe_finalize() call-back where the IOMMU driver can do
> > per-device setup work which require the device to be set up with a
> > group and a domain.
> 
> The subject is inaccurate. probe_device() and release_device() are
> added to replace the add and remove pair.

This patch does not replace them yet, it just adds the new call-backs.
The removal of add_device()/remove_device() happens later in the
patch-set when all drivers are converted.

Regards,

	Joerg

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