From: Wolfram Sang <wsa@the-dreams.de>
To: Eugeniu Rosca <erosca@de.adit-jv.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Eugeniu Rosca <roscaeugeniu@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Vinod Koul <vkoul@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
"open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
dmaengine@vger.kernel.org,
"George G . Davis" <george_davis@mentor.com>
Subject: Re: [PATCH 0/2] serial: sh-sci: Fix .flush_buffer() issues
Date: Fri, 28 Jun 2019 14:55:34 +0200 [thread overview]
Message-ID: <20190628125534.GB1458@ninjato> (raw)
In-Reply-To: <20190628123907.GA10962@vmlxhi-102.adit-jv.com>
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> > If a serial port is used as a console, the port is used for both DMA
> > (normal use) and PIO (serial console output). The latter can have a
> > negative impact on the former, aggravating existing bugs, or triggering
> > more races, even in the hardware. So I think it's better to be more
> > cautious and keep DMA disabled for the console.
>
> Thanks for the extensive and comprehensible replies.
> No more questions from my end.
> Looking forward to picking the patches from vanilla/stable trees.
If you could formally add such a tag:
Tested-by: <your email>
(maybe also Acked-by: or Reviewed-by:, dunno if you think it is
apropriate)
to the patches, this would be much appreciated and will usually speed up
the patches getting applied.
Thanks for your help!
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next prev parent reply other threads:[~2019-06-28 12:55 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-24 12:35 [PATCH 0/2] serial: sh-sci: Fix .flush_buffer() issues Geert Uytterhoeven
2019-06-24 12:35 ` [PATCH 1/2] serial: sh-sci: Fix TX DMA buffer flushing and workqueue races Geert Uytterhoeven
2019-06-28 12:53 ` Eugeniu Rosca
2019-06-24 12:35 ` [PATCH 2/2] serial: sh-sci: Terminate TX DMA during buffer flushing Geert Uytterhoeven
2019-06-28 14:04 ` Eugeniu Rosca
2019-06-26 17:34 ` [PATCH 0/2] serial: sh-sci: Fix .flush_buffer() issues Eugeniu Rosca
2019-06-28 11:51 ` Geert Uytterhoeven
2019-06-28 12:39 ` Eugeniu Rosca
2019-06-28 12:55 ` Wolfram Sang [this message]
2019-06-28 13:02 ` Eugeniu Rosca
2019-06-28 13:14 ` Wolfram Sang
2019-07-03 17:30 ` Greg Kroah-Hartman
2019-07-03 18:15 ` Eugeniu Rosca
2019-07-03 18:44 ` Greg Kroah-Hartman
2019-07-03 21:08 ` Wolfram Sang
2019-06-28 16:29 ` George G. Davis
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