linux-kernel - Re: [RFC][PATCH] watchdog: rti-wdt: Provide set_timeout handler to make existing userspace happy

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Message-ID: <9ed68e05-5761-4dc9-b81c-fc847ec6d043@siemens.com>
Date: Mon, 22 Apr 2024 07:35:52 +0200
From: Jan Kiszka <jan.kiszka@...mens.com>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Wim Van Sebroeck <wim@...ux-watchdog.org>,
 Guenter Roeck <linux@...ck-us.net>, linux-watchdog@...r.kernel.org,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Tero Kristo <t-kristo@...com>,
 "Su, Bao Cheng (RC-CN DF FA R&D)" <baocheng.su@...mens.com>
Subject: Re: [RFC][PATCH] watchdog: rti-wdt: Provide set_timeout handler to
 make existing userspace happy

On 21.04.24 10:49, Francesco Dolcini wrote:
> Hello Jan,
> 
> On Mon, Sep 13, 2021 at 01:41:43PM +0200, Jan Kiszka wrote:
>> From: Jan Kiszka <jan.kiszka@...mens.com>
>>
>> Prominent userspace - systemd - cannot handle watchdogs without
>> WDIOF_SETTIMEOUT, even if it was configured to the same time as the
>> driver selected or was used by firmware to start the watchdog. To avoid
>> failing in this case, implement a handler that only fails if a deviating
>> set_timeout is requested.
>>
>> Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
> 
> Are you aware of this patch https://lore.kernel.org/all/20240417205700.3947408-1-jm@ti.com/ ?
> 

Thanks for the heads-up, we will surely try to test things on our setups
as well. But commenting on this dead and not directly related thread may
have caused some confusion...

Jan

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