linux-kernel - Re: [PATCH 2/3] iommu/dma: Move public interfaces to linux/iommu.h

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Date:   Wed, 17 Aug 2022 13:19:10 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Robin Murphy <robin.murphy@....com>
Cc:     joro@...tes.org, will@...nel.org, catalin.marinas@....com,
        jean-philippe@...aro.org, inki.dae@...sung.com,
        sw0312.kim@...sung.com, kyungmin.park@...sung.com,
        tglx@...utronix.de, alex.williamson@...hat.com, cohuck@...hat.com,
        iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-acpi@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH 2/3] iommu/dma: Move public interfaces to linux/iommu.h

On Tue, 16 Aug 2022 18:28:04 +0100,
Robin Murphy <robin.murphy@....com> wrote:
> 
> The iommu-dma layer is now mostly encapsulated by iommu_dma_ops, with
> only a couple more public interfaces left pertaining to MSI integration.
> Since these depend on the main IOMMU API header anyway, move their
> declarations there, taking the opportunity to update the half-baked
> comments to proper kerneldoc along the way.
> 
> Signed-off-by: Robin Murphy <robin.murphy@....com>
> ---
> 
> Note that iommu_setup_dma_ops() should also become internal in a future
> phase of the great IOMMU API upheaval - for now as the last bit of true
> arch code glue I consider it more "necessarily exposed" than "public".
> 
>  arch/arm64/mm/dma-mapping.c       |  2 +-
>  drivers/iommu/dma-iommu.c         | 15 ++++++++++--
>  drivers/irqchip/irq-gic-v2m.c     |  2 +-
>  drivers/irqchip/irq-gic-v3-its.c  |  2 +-
>  drivers/irqchip/irq-gic-v3-mbi.c  |  2 +-
>  drivers/irqchip/irq-ls-scfg-msi.c |  2 +-
>  drivers/vfio/vfio_iommu_type1.c   |  1 -
>  include/linux/dma-iommu.h         | 40 -------------------------------
>  include/linux/iommu.h             | 36 ++++++++++++++++++++++++++++
>  9 files changed, 54 insertions(+), 48 deletions(-)

For the irqchip side:

Acked-by: Marc Zyngier <maz@...nel.org>

	M.

-- 
Without deviation from the norm, progress is not possible.