linux-kernel - Re: [PATCH 04/12] dma-mapping: fix DMA

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Date:   Tue, 8 Sep 2020 21:04:17 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...il.com>
To:     Christoph Hellwig <hch@....de>, Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        iommu@...ts.linux-foundation.org
Cc:     Tomasz Figa <tfiga@...omium.org>, Joerg Roedel <joro@...tes.org>,
        Robin Murphy <robin.murphy@....com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH 04/12] dma-mapping: fix DMA_OPS dependencies

Hello!

On 9/8/20 7:47 PM, Christoph Hellwig wrote:

> Driver that select DMA_OPS need to depend on HAS_DMA support to
> work.  The vop driver was missing that dependency, so add it, and also
> add a nother depends in DMA_OPS itself.  That won't fix the issue due

   Another? :-)

> to how the Kconfig dependencies work, but at least produce a warning
> about unmet dependencies.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
[...]

MBR, Sergei