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Message-ID: <14311965.TaHA55BQu8@bagend>
Date: Thu, 30 May 2024 15:57:38 +0200
From: Diederik de Haas <didi.debian@...ow.org>
To: David Woodhouse <dwmw2@...radead.org>,
 Lu Baolu <baolu.lu@...ux.intel.com>, Joerg Roedel <joro@...tes.org>,
 Will Deacon <will@...nel.org>
Cc: Robin Murphy <robin.murphy@....com>, iommu@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Diederik de Haas <didi.debian@...ow.org>
Subject:
 device_def_domain_type documentation header does not match implementation

Hi,

While looking into ``drivers/iommu/intel/iommu.c::device_def_domain_type`` 
function I noticed a discrepancy between the documentation header and the 
implementation.

``@...rtup: true if this is during early boot``
0e31a7266508 ("iommu/vt-d: Remove startup parameter from 
device_def_domain_type()")
removed the ``startup`` function parameter

returns ``IOMMU_DOMAIN_DMA: device requires a dynamic mapping domain``
28b41e2c6aeb ("iommu: Move def_domain type check for untrusted device into 
core") 
moved the possible return of ``IOMMU_DOMAIN_DMA`` to ``drivers/iommu/iommu.c``

But neither updated the documentation header.

Cheers,
  Diederik
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