linux-kernel - Re: disabling CONFIG_LED_CLASS (SND_HDA_CODEC

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Message-ID: <20201014075458.GA29881@amd>
Date:   Wed, 14 Oct 2020 09:54:59 +0200
From:   Pavel Machek <pavel@....cz>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     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>,
        Takashi Iwai <tiwai@...e.de>,
        moderated for non-subscribers <alsa-devel@...a-project.org>
Subject: Re: disabling CONFIG_LED_CLASS (SND_HDA_CODEC_REALTEK)

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.

Best regards,
								Pavel
								
> and this Kconfig entry:
> 
> config SND_HDA_CODEC_REALTEK
> 	tristate "Build Realtek HD-audio codec support"
> 	select SND_HDA_GENERIC
> 	select SND_HDA_GENERIC_LEDS
> 
> it seems that LED support is not always wanted (please see above).
> I.e., user(s) would like to build a kernel without LED support at all.
> 
> Can you make it a build option?
> 
> thanks.

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

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