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>,
Sumit Semwal <sumit.semwal@linaro.org>,
John Stultz <john.stultz@linaro.org>,
Arve Hj?nnev?g <arve@android.com>,
Riley Andrews <riandrews@android.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
linaro-mm-sig@lists.linaro.org, devel@driverdev.osuosl.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Eun Taik Lee <eun.taik.lee@samsung.com>,
Rohit kumar <rohit.kr@samsung.com>,
Jon Medhurst <tixy@linaro.org>,
Mitchel Humpherys <mitchelh@codeaurora.org>,
Jeremy Gebben <jgebben@codeaurora.org>,
Bryan Huntsman <bryanh@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Android Kernel Team <kernel-team@android.com>
Subject: Re: [RFC][PATCH 1/3] staging: ion: Move away from the DMA APIs for cache flushing
Date: Thu, 26 May 2016 05:06:35 -0700 [thread overview]
Message-ID: <20160526120635.GA28564@infradead.org> (raw)
In-Reply-To: <20160526105922.GH19428@n2100.arm.linux.org.uk>
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.
next prev parent reply other threads:[~2016-05-26 12:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 19:48 [RFC][PATCH 0/3] Clean up Ion mapping/caching Laura Abbott
2016-05-25 19:48 ` [RFC][PATCH 1/3] staging: ion: Move away from the DMA APIs for cache flushing Laura Abbott
2016-05-26 9:58 ` Liviu Dudau
2016-05-26 10:59 ` Russell King - ARM Linux
2016-05-26 12:06 ` Christoph Hellwig [this message]
2016-06-03 1:57 ` [Linaro-mm-sig] " Li, Xiaoquan
2016-05-25 19:48 ` [RFC][PATCH 2/3] staging: ion: Add support for syncing with DMA_BUF_IOCTL_SYNC Laura Abbott
2016-05-25 19:48 ` [RFC][PATCH 3/3] staging: ion: Add dma_map/dma_unmap calls to dma_buf calls Laura Abbott
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