Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Tue, 28 Sep 2021 11:30:43 +0200
From:   Joerg Roedel <joro@8bytes.org>
To:     Robin Murphy <robin.murphy@arm.com>
Cc:     will@kernel.org, iommu@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
        Marek Szyprowski <m.szyprowski@samsung.com>, x86@kernel.org,
        linux-ia64@vger.kernel.org
Subject: Re: [PATCH] iommu/dma: Tidy up Kconfig selects
Message-ID: <YVLgw1nfEf7U13Mh@8bytes.org>
References: <9ba6f2e8568a3ff6a94fade66668d99705433c44.1631536879.git.robin.murphy@arm.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <9ba6f2e8568a3ff6a94fade66668d99705433c44.1631536879.git.robin.murphy@arm.com>
Precedence: bulk

On Mon, Sep 13, 2021 at 01:41:19PM +0100, Robin Murphy wrote:
> Now that the dust has settled on converting all the x86 drivers to
> iommu-dma, we can punt the Kconfig selection to arch code where it
> was always intended to be.

Can we select IOMMU_DMA under IOMMU_SUPPORT instead? The only drivers
not using IOMMU_DMA are the arm32 ones, afaics.

If we could get rid of the arm32 exception, the IOMMU_DMA symbol could
also go away entirely and we handle it under IOMMU_SUPPORT instead. But
that is something for the future :)

Regards,

	Joerg