linux-kernel - Re: [PATCH v5] watchdog: add driver for StreamLabs USB watchdog device

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Date:   Mon, 25 Jul 2022 10:51:43 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Alexey Klimov <klimov.linux@...il.com>
Cc:     linux-watchdog@...r.kernel.org, wim@...ux-watchdog.org,
        linux@...ck-us.net, oneukum@...e.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, atishp@...osinc.com,
        atishp@...shpatra.org, yury.norov@...il.com, aklimov@...hat.com,
        atomlin@...hat.com
Subject: Re: [PATCH v5] watchdog: add driver for StreamLabs USB watchdog
 device

On Mon, Jul 25, 2022 at 04:06:05AM +0100, Alexey Klimov wrote:
> +static bool nowayout = WATCHDOG_NOWAYOUT;
> +module_param(nowayout, bool, 0);
> +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
> +			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
> +

Meta-comment about watchdog drivers, this is per-driver, not per-device,
which does not make sense for when these devices are on removable busses
where you can have multiple ones.

I don't suggest changing this (as it follows the current style of other
watchdog drivers), but perhaps a sysfs attribute for watchdog devices
can do the same thing in the future so you can do this on a per-device
basis.

Anyway, driver looks good to me, nice work!

Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>