linux-kernel - Re: [PATCH] iommu/io-pgtable-arm: Remove iommu

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Message-ID: <YxiMOO+8Zz5bnUQ3@8bytes.org>
Date:   Wed, 7 Sep 2022 14:19:04 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Robin Murphy <robin.murphy@....com>
Cc:     will@...nel.org, iommu@...ts.linux.dev, subkhankulov@...ras.ru,
        khoroshilov@...ras.ru, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iommu/io-pgtable-arm: Remove iommu_dev==NULL special case

On Mon, Aug 15, 2022 at 05:15:55PM +0100, Robin Murphy wrote:
> The special case to allow iommu_dev==NULL in __arm_lpae_alloc_pages() is
> confusing to static checkers (and possibly readers in general), since
> it's not obvious that that is only intended for the selftests. However
> it only serves to get around the dev_to_node() call, and we can easily
> fake up enough to make that work anyway, so let's simply remove this
> consideration from the normal flow and punt the responsibility over to
> the test harness itself.
> 
> Reported-by: Rustam Subkhankulov <subkhankulov@...ras.ru>
> Signed-off-by: Robin Murphy <robin.murphy@....com>

Applied, thanks.