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Groups > linux.kernel > #1658861
| From | Geert Uytterhoeven <geert@linux-m68k.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling |
| Date | 2017-06-06 17:30 +0200 |
| Message-ID | <tPoAF-27S-3@gated-at.bofh.it> (permalink) |
| References | (3 earlier) <tPjUl-7rj-7@gated-at.bofh.it> <tPk41-7uB-7@gated-at.bofh.it> <tPknp-7Bq-49@gated-at.bofh.it> <tPkGJ-82Q-3@gated-at.bofh.it> <tPkQp-89v-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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