linux-kernel - Re: [PATCH v3 1/3] leds: triggers: provide led_trigger_register

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Message-ID: <906d2b27-2e8b-92a9-13ff-2676f48142f4@gmail.com>
Date:   Wed, 9 May 2018 21:57:15 +0200
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Marc Kleine-Budde <m.kleine-budde@...gutronix.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, Johan Hovold <johan@...nel.org>,
        Pavel Machek <pavel@....cz>,
        One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-serial@...r.kernel.org,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        linux-kernel@...r.kernel.org, linux-can@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de,
        Robin Murphy <robin.murphy@....com>, linux-leds@...r.kernel.org
Subject: Re: [PATCH v3 1/3] leds: triggers: provide
 led_trigger_register_format()

Hi Uwe,

On 05/08/2018 10:17 PM, Uwe Kleine-König wrote:
> Hello Jacek,
> 
> On Tue, May 08, 2018 at 09:33:14PM +0200, Jacek Anaszewski wrote:
>> Thank you for the patch. It looks fine, but please split
>> the drivers/net/can/led.c related changes into a separate one.
> 
> I renamed led_trigger_rename_static() to led_trigger_rename() (and
> changed the parameters). The can change just adapts the only user of
> led_trigger_rename_static() to use the new one.
> 
> It's not impossible to separate this patches, but I wonder if it's worth
> the effort.
> 
> The first patch would be like the patch under discussion, just without
> the can bits and introducing something like:
> 
> 	/*
> 	 * compat stuff to be removed once the only caller is converted
> 	 */
> 	static inline led_trigger_rename_static(const char *name, struct led_trigger *trig)
> 	{
> 		(void)led_trigger_rename(trig, "%s", name);
> 	}
> 
> Then the second patch would just be the 6-line can hunk. And a third
> patch would remove the compat function. (Maybe I'd choose to squash the
> two can patches together then, but this doesn't reduce the overhead
> considerably.) The only upside I can see here is that it increases my
> patch count, but it's otherwise not worth the effort for such an easy
> change. Further more as there is a strict dependency on these three
> patches this either delays the cleanup or (IMHO more likely) the can
> change would go in via the led tree anyhow.  (Mark already acked patch 2
> of this series and in private confirmed that the agrees to let this
> change go in via the led tree, too.)

OK, makes sense. I'll wait also for ack on 3/3 since it should
go through the LED tree as well - uses a new led_trigger_register_format().

-- 
Best regards,
Jacek Anaszewski