linux-kernel - Re: [PATCH v2 02/13] iommu/rockchip: Suppress unbinding

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Date:   Wed, 17 Jan 2018 13:23:33 +0900
From:   Tomasz Figa <tfiga@...omium.org>
To:     Jeffy Chen <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 list:IOMMU DRIVERS" <iommu@...ts.linux-foundation.org>,
        Joerg Roedel <joro@...tes.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 02/13] iommu/rockchip: Suppress unbinding

On Tue, Jan 16, 2018 at 10:25 PM, Jeffy Chen <jeffy.chen@...k-chips.com> wrote:
> It's not safe to unbind rockchip IOMMU driver.

Might be good to explain why it is not safe and actually add that it
does not make any sense for such low level devices.

Best regards,
Tomasz