linux-kernel - Re: disabling CONFIG_LED_CLASS (SND_HDA_CODEC

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Message-ID: <20201014081305.GD29881@amd>
Date:   Wed, 14 Oct 2020 10:13:05 +0200
From:   Pavel Machek <pavel@....cz>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Udo van den Heuvel <udovdh@...all.nl>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-leds@...r.kernel.org, Dan Murphy <dmurphy@...com>,
        moderated for non-subscribers <alsa-devel@...a-project.org>
Subject: Re: disabling CONFIG_LED_CLASS (SND_HDA_CODEC_REALTEK)

On Wed 2020-10-14 10:08:27, Takashi Iwai wrote:
> On Wed, 14 Oct 2020 09:54:59 +0200,
> Pavel Machek wrote:
> > 
> > Hi!
> > 
> > > >>> I.e.: it looks like I will lose some funcionality when I disable
> > > >>> SND_HDA_CODEC_REALTEK.
> > > >>
> > > >> OK. At present you can't have it both ways, i.e., SND_HDA_CODEC_REALTEK
> > > >> with no LEDS. That driver apparently wants LEDS.
> > > > 
> > > > Thanks but why have I gone for years without LEDS?
> > > > I do not need LEDS, I do not want LEDS, I do not have LEDS (that are
> > > > visible, usable, etc).
> > > > 
> > > > Please make this selectable instead of forcing more bulk into my
> > >> kernel.
> > 
> > LED core is not that big, and this avoided some rather "interesting"
> > hacks IIRC. If Udo wants more config complexity, lets first make him
> > measure the benefits, second submit a patch.
> > 
> > But I'd suggest to just live with it.
> > 
> > And yes, we should probably get rid of "CONFIG_NEW_LEDS" symbol. That
> > one is actually useless.
> 
> IIRC, this was needed for the reverse selection of CONFIG_LEDS_CLASS
> and co.  But if it's really useless, I'll happily delete it.

It is needed for now. It is just something we should remove in
future. CONFIG options are not that cheap...

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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