linux-kernel - Re: [PATCH 12/12] dma-mapping: turn dma_cache_sync into a dma_map

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Message-ID: <CAMuHMdVwHx2aATKqYS7xXTjnCigoZzVFFfcZOmvNj3KcFFJehg@mail.gmail.com>
Date:   Mon, 28 Aug 2017 08:26:29 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Christoph Hellwig <hch@....de>
Cc:     iommu@...ts.linux-foundation.org,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Michal Simek <monstr@...str.eu>,
        David Howells <dhowells@...hat.com>,
        Guan Xuetao <gxt@...c.pku.edu.cn>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Linux MIPS Mailing List <linux-mips@...ux-mips.org>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-xtensa@...ux-xtensa.org" <linux-xtensa@...ux-xtensa.org>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 12/12] dma-mapping: turn dma_cache_sync into a dma_map_ops method

Hi Christoph,

On Sun, Aug 27, 2017 at 6:10 PM, Christoph Hellwig <hch@....de> wrote:
> After we removed all the dead wood it turns out only two architectures
> actually implement dma_cache_sync as a no-op: mips and parisc.  Add

s/no-op/real op/

> a cache_sync method to struct dma_map_ops and implement it for the
> mips defualt DMA ops, and the parisc pa11 ops.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds