Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Tue, 14 May 2019 10:28:34 +0200 | Subject | Re: [PATCH v2] serial: sh-sci: disable DMA for uart_console |
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Hi George,
On Mon, May 13, 2019 at 5:48 PM George G. Davis <george_davis@mentor.com> wrote: > As noted in commit 84b40e3b57ee ("serial: 8250: omap: Disable DMA for > console UART"), UART console lines use low-level PIO only access functions > which will conflict with use of the line when DMA is enabled, e.g. when > the console line is also used for systemd messages. So disable DMA > support for UART console lines. > > Fixes: https://patchwork.kernel.org/patch/10929511/
I don't think this is an appropriate reference, as it points to a patch that was never applied.
As the problem has basically existed forever, IMHO no Fixes tag is needed.
> Reported-by: Michael Rodin <mrodin@de.adit-jv.com> > Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com> > Reviewed-by: Simon Horman <horms+renesas@verge.net.au> > Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> > Cc: stable@vger.kernel.org > Signed-off-by: George G. Davis <george_davis@mentor.com> > --- > v2: Clarify comment regarding DMA support on kernel console, > add {Tested,Reviewed}-by:, and Cc: linux-stable lines.
Thanks for the update!
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
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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