linux-kernel - Re: [PATCH] iommu/iova: Fix module config properly

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Date:   Wed, 14 Sep 2022 11:48:31 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Robin Murphy <robin.murphy@....com>
Cc:     joro@...tes.org, will@...nel.org, iommu@...ts.linux.dev,
        linux-kernel@...r.kernel.org, John Garry <john.garry@...wei.com>
Subject: Re: [PATCH] iommu/iova: Fix module config properly

On Tue, Sep 13, 2022 at 12:47:20PM +0100, Robin Murphy wrote:
> IOMMU_IOVA is intended to be an optional library for users to select as
> and when they desire. Since it can be a module now, this means that
> built-in code which has chosen not to select it should not fail to link
> if it happens to have selected as a module by someone else. Replace
> IS_ENABLED() with IS_REACHABLE() to do the right thing.
> 
> CC: Thierry Reding <thierry.reding@...il.com>
> Reported-by: John Garry <john.garry@...wei.com>
> Fixes: 15bbdec3931e ("iommu: Make the iova library a module")
> Signed-off-by: Robin Murphy <robin.murphy@....com>
> ---
> 
> Phrased as a fix for the sake of complete honesty, but it seems
> everyone's been making do for years already so by now it's really
> just more of an enhancement.
> 
>  include/linux/iova.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Thierry Reding <treding@...dia.com>

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