From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Date: Tue, 08 Sep 2020 18:04:17 +0000
Subject: Re: [PATCH 04/12] dma-mapping: fix DMA_OPS dependencies
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 <20200908164758.3177341-5-hch@lst.de>
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To: Christoph Hellwig <hch@lst.de>, Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, iommu@lists.linux-foundation.org
Cc: Tomasz Figa <tfiga@chromium.org>, Joerg Roedel <joro@8bytes.org>, Robin Murphy <robin.murphy@arm.com>, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org

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@lst.de>
[...]

MBR, Sergei