Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling

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From	Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups	linux.kernel
Subject	Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling
Date	Tue, 06 Jun 2017 17:30:01 +0200
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Hi Wolfram,

On Tue, Jun 6, 2017 at 1:23 PM, Wolfram Sang <wsa@the-dreams.de> wrote:
>> I have it enabled all the time. So my devices may stop working...
>
> If you have enabled it all the time, then there won't be a difference
> from now. Or?
>
> That also shows how rarely I2C DMA transfers are triggered from within
> the kernel :)

... how rarely i2c DMA transfers from possibly unsafe buffers...

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

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[RFC PATCH 2/4] i2c: add docs to clarify DMA handling Wolfram Sang <wsa+renesas@sang-engineering.com> - 2017-06-06 11:30 +0200
  Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Geert Uytterhoeven <geert@linux-m68k.org> - 2017-06-06 12:10 +0200
    Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Wolfram Sang <wsa@the-dreams.de> - 2017-06-06 12:30 +0200
      Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Geert Uytterhoeven <geert@linux-m68k.org> - 2017-06-06 12:40 +0200
        Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Wolfram Sang <wsa@the-dreams.de> - 2017-06-06 13:00 +0200
          Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Geert Uytterhoeven <geert@linux-m68k.org> - 2017-06-06 13:20 +0200
            Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Wolfram Sang <wsa@the-dreams.de> - 2017-06-06 13:30 +0200
              Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling Geert Uytterhoeven <geert@linux-m68k.org> - 2017-06-06 17:30 +0200

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