linux-kernel - Re: [PATCH v8 0/7] Add non-strict mode support for iommu-dma

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Message-ID: <c1bda944-6279-4393-1277-c9df18594ca0@arm.com>
Date:   Fri, 28 Sep 2018 14:42:53 +0100
From:   Robin Murphy <robin.murphy@....com>
To:     Will Deacon <will.deacon@....com>
Cc:     joro@...tes.org, thunder.leizhen@...wei.com,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linuxarm@...wei.com, guohanjun@...wei.com, huawei.libin@...wei.com,
        john.garry@...wei.com
Subject: Re: [PATCH v8 0/7] Add non-strict mode support for iommu-dma

On 28/09/18 14:36, Will Deacon wrote:
> On Thu, Sep 20, 2018 at 05:10:20PM +0100, Robin Murphy wrote:
>> Hopefully this is the last spin of the series - I've now dropped my light
>> touch and fixed up all the various prose text, plus implemented the proper
>> quirk support for short-descriptor because it's actually just a trivial
>> cut-and-paste job.
> 
> Did you manage to clarify how the lifetime of the domain/flush queue interacts
> with the periodic timer after the cookie has been freed?

Oh, yes - it turned out to be wrapped up in put_iova_domain() already 
(see free_iova_flush_queue()), so all looks good in that regard.

Robin.