linux-kernel - Re: [PATCH 2/2] leds: trigger/tty: Use led_set_brightness

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Message-ID: <20210219094632.GB5641@duo.ucw.cz>
Date:   Fri, 19 Feb 2021 10:46:32 +0100
From:   Pavel Machek <pavel@....cz>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-leds@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH 2/2] leds: trigger/tty: Use led_set_brightness_sync()
 from workqueue

On Fri 2021-02-19 09:29:55, Uwe Kleine-König wrote:
> led_set_brightness() involves scheduling a workqueue. As here the led's
> brightness setting is done in context of the trigger's workqueue this is
> unjustified overhead and it's more sensible to use
> led_set_brightness_sync().

Acked-by: Pavel Machek <pavel@....cz>

-- 
http://www.livejournal.com/~pavelmachek

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