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From: Cory Tusar <Cory.Tusar@zii.aero>
To: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: Re: [PATCH] serdev: Do not call .receive_buf() callback recursively
Date: Tue, 14 May 2019 01:49:32 +0000	[thread overview]
Message-ID: <20190514014927.GD31272@zii.aero> (raw)
In-Reply-To: <20190513235908.18693-1-andrew.smirnov@gmail.com>

On Mon, May 13, 2019 at 04:59:08PM -0700, Andrey Smirnov wrote:
> Code implementing .receive_buf() callback can potentially call
> serdev_device_write(), which will call serdev_device_poller(). We need
> to make sure that such a call is a no-op in order to prevent
> corrupting shared data buffer as well as breaking .receive_buf
> callback that most likely does not expect that to happen.
>
> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>

Tested-by: Cory Tusar <cory.tusar@zii.aero>


--
Cory Tusar
Senior Software Engineer
Zodiac Inflight Innovations
2929 E Imperial Hwy, Suite 170
Brea, CA 92821
(714) 203-0519

www.safran-aerosystems.com

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  reply	other threads:[~2019-05-14  1:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-13 23:59 Andrey Smirnov
2019-05-14  1:49 ` Cory Tusar [this message]
2019-05-15  8:10 ` Sascha Hauer

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