Re: [PATCH 04/11] ia64: make dma_cache_sync a no-op
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- To: David Laight <David.Laight@xxxxxxxxxx>
- Subject: Re: [PATCH 04/11] ia64: make dma_cache_sync a no-op
- From: "'Christoph Hellwig'" <hch@xxxxxx>
- Date: Wed, 4 Oct 2017 11:06:31 +0200
- Cc: "'Christoph Hellwig'" <hch@xxxxxx>, "iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Chris Zankel <chris@xxxxxxxxxx>, Michal Simek <monstr@xxxxxxxxx>, "linux-ia64@xxxxxxxxxxxxxxx" <linux-ia64@xxxxxxxxxxxxxxx>, "linux-mips@xxxxxxxxxxxxxx" <linux-mips@xxxxxxxxxxxxxx>, "linux-sh@xxxxxxxxxxxxxxx" <linux-sh@xxxxxxxxxxxxxxx>, "linuxppc-dev@xxxxxxxxxxxxxxxx" <linuxppc-dev@xxxxxxxxxxxxxxxx>, "linux-xtensa@xxxxxxxxxxxxxxxx" <linux-xtensa@xxxxxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, David Howells <dhowells@xxxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, Guan Xuetao <gxt@xxxxxxxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
- In-reply-to: <063D6719AE5E284EB5DD2968C1650D6DD0089626@AcuExch.aculab.com>
- References: <20171003104311.10058-1-hch@lst.de> <20171003104311.10058-5-hch@lst.de> <063D6719AE5E284EB5DD2968C1650D6DD0089626@AcuExch.aculab.com>
- User-agent: Mutt/1.5.17 (2007-11-01)
On Wed, Oct 04, 2017 at 08:59:24AM +0000, David Laight wrote:
> Are you sure about this one?
Yes. And if you are not you haven't read either of the cover letter,
the DMA-API documentation, or the reply from Thomas to your mail
yesterday.
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