linux-kernel - Re: [PATCH v2 05/13] iommu/rockchip: Fix error handling in init

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Message-ID: <CAAFQd5D2YE+5g5r4-1cnqeThSVJBCg78mozCTuFfpwnifaGcwg@mail.gmail.com>
Date:   Wed, 17 Jan 2018 16:19:16 +0900
From:   Tomasz Figa <tfiga@...omium.org>
To:     JeffyChen <jeffy.chen@...k-chips.com>
Cc:     linux-kernel@...r.kernel.org, Ricky Liang <jcliang@...omium.org>,
        Robin Murphy <robin.murphy@....com>,
        simon xue <xxm@...k-chips.com>,
        Heiko Stuebner <heiko@...ech.de>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        open@....net,
        "list@....net:IOMMU DRIVERS <iommu@...ts.linux-foundation.org>, Joerg
        Roedel <joro@...tes.org>," <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 05/13] iommu/rockchip: Fix error handling in init

On Wed, Jan 17, 2018 at 4:14 PM, JeffyChen <jeffy.chen@...k-chips.com> wrote:
> Hi Tomasz,
>
> On 01/17/2018 01:26 PM, Tomasz Figa wrote:
>>
>> On Tue, Jan 16, 2018 at 10:25 PM, Jeffy Chen <jeffy.chen@...k-chips.com>
>> wrote:
>>>
>>> It's hard to undo bus_set_iommu() in the error path, so move it to the
>>> end of rk_iommu_probe().
>>
>>
>> Does this work fine now? I remember we used to need this called in an
>> early initcall for all the ARM/ARM64 DMA stuff to work.
>>
> yes, i think it works now, i saw there are some other iommu drivers also do
> this(arm-smmu-v3, mtk_iommu) :)

Okay, if so:

Reviewed-by: Tomasz Figa <tfiga@...omium.org>

Best regards,
Tomasz

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