From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Alexandre Courbot <acourbot@nvidia.com>, Ben Skeggs <bskeggs@redhat.com>,
        David Airlie <airlied@linux.ie>, gnurou@gmail.com,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        Thierry Reding <treding@nvidia.com>
Subject: Re: [PATCH] drm/nouveau/platform: fix compilation if !CONFIG_IOMMU
Date: Wed, 20 May 2015 09:07:04 +0200
Message-ID: <3919309.jIrkBUJG1x@wuerfel>
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On Wednesday 20 May 2015 15:10:24 Alexandre Courbot wrote:
> The lack of IOMMU API support can make nouveau_platform_probe_iommu()
> fail to compile because struct iommu_ops is then empty. Fix this by
> skipping IOMMU probe in that case - lack of IOMMU on platform devices
> is sub-optimal, but is not an error.
> 
> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
> ---
> This is an alternative to https://lkml.org/lkml/2015/5/19/484. Most users
> of Nouveau do not care about IOMMU support, so we should not impose that
> option on them.
> 

Yes, good idea.

Acked-by: Arnd Bergmann <arnd@arndb.de>
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