linux-kernel - Re: [PATCH] iommu/qcom: Use domain rather than dev as tlb cookie

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Message-ID: <20200722131009.GD27672@8bytes.org>
Date:   Wed, 22 Jul 2020 15:10:10 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     Rob Clark <robdclark@...il.com>, iommu@...ts.linux-foundation.org,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Robin Murphy <robin.murphy@....com>,
        Rob Clark <robdclark@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        open list <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>, lkft-triage@...ts.linaro.org
Subject: Re: [PATCH] iommu/qcom: Use domain rather than dev as tlb cookie

On Tue, Jul 21, 2020 at 12:45:17AM +0530, Naresh Kamboju wrote:
> On Mon, 20 Jul 2020 at 21:21, Rob Clark <robdclark@...il.com> wrote:
> >
> > From: Rob Clark <robdclark@...omium.org>
> >
> > The device may be torn down, but the domain should still be valid.  Lets
> > use that as the tlb flush ops cookie.
> >
> > Fixes a problem reported in [1]
> 
> This proposed fix patch applied on top of linux mainline master
> and boot test PASS on db410c.
> 
> The reported problem got fixed.

Is this needed for v5.8/stable? A fixes tag would be great too.

Regards,

	Joerg