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Date: Thu, 26 May 2016 05:06:35 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>, Laura Abbott <labbott@redhat.com>,
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Subject: Re: [RFC][PATCH 1/3] staging: ion: Move away from the DMA APIs for
 cache flushing
Message-ID: <20160526120635.GA28564@infradead.org>
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On Thu, May 26, 2016 at 11:59:22AM +0100, Russell King - ARM Linux wrote:
> I _really_ hate seeing architecture internal functions being abused in
> drivers - architecture internal functions are there to implement the
> official kernel APIs and are not for drivers to poke about with.

Exactly - if drivers like drm and ion want to do something out side the
current DMA API we need to add a proper API, not hack around the lack of
one.