linux-kernel - Re: [PATCH] intel-iommu: Turn off translations at shutdown

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Message-ID: <CABeXuvpYE9FCdX-FXTEg-rN_dtoxVn5+2psgU_AxPUPk38fQEw@mail.gmail.com>
Date:   Thu, 7 Nov 2019 13:27:35 -0800
From:   Deepa Dinamani <deepa.kernel@...il.com>
To:     joro@...tes.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        iommu@...ts.linux-foundation.org
Subject: Re: [PATCH] intel-iommu: Turn off translations at shutdown

On Thu, Nov 7, 2019 at 12:59 PM Deepa Dinamani <deepa.kernel@...il.com> wrote:
> +static void intel_iommu_shutdown(void)
> +       if (no_iommu || dmar_disabled)
> +               return;

This check is actually not required here, as the handler is only
installed after these have been checked in intel_iommu_init.
I can remove this in the next version of the patch, but I'll wait a
few days for comments.

-Deepa