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From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [PATCH] watchdog: Handle timer wrap around
Date: Mon, 16 Mar 2020 15:19:11 +0100	[thread overview]
Message-ID: <b20947b7-6e0c-387f-ecb7-4096113694b9@denx.de> (raw)
In-Reply-To: <20200224002033.17860-1-judge.packham@gmail.com>

On 24.02.20 01:20, Chris Packham wrote:
> On some platforms/architectures the value from get_timer() can wrap.
> This is particularly problematic when long-running code needs to measure
> a time difference as is the case with watchdog_reset() which tries to
> avoid tickling the watchdog too frequently.
> 
> Use time_after() from time.h instead of a plain > comparison to avoid
> any issues with the time wrapping on a system that has been sitting in
> u-boot for a long time.
> 
> Signed-off-by: Chris Packham <judge.packham@gmail.com>

Applied to u-boot-marvell/master.

Thanks,
Stefan

      parent reply	other threads:[~2020-03-16 14:19 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-24  0:20 [PATCH] watchdog: Handle timer wrap around Chris Packham
2020-02-24 11:48 ` Stefan Roese
2020-03-16 14:19 ` Stefan Roese [this message]

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