linux-kernel - Re: [PATCH] ASoC: codecs: tlv320adc3xxx: Wrap adc3xxx_i2c_remove() in __exit

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Date:   Mon, 17 Oct 2022 14:59:01 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Ricard Wanderlof <ricardw@...s.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: codecs: tlv320adc3xxx: Wrap adc3xxx_i2c_remove() in __exit_p()

Hi Mark,

On Mon, Oct 17, 2022 at 1:36 PM Mark Brown <broonie@...nel.org> wrote:
> On Sun, Oct 16, 2022 at 10:33:50AM +0200, Geert Uytterhoeven wrote:
> > If CONFIG_SND_SOC_TLV320ADC3XXX=y:
> >
> >     `.exit.text' referenced in section `.data' of sound/soc/codecs/tlv320adc3xxx.o: defined in discarded section `.exit.text' of sound/soc/codecs/tlv320adc3xxx.o
> >
> > Fix this by wrapping the adc3xxx_i2c_remove() pointer in __exit_p().
>
> Why does this driver need this but most others don't?

Because most drivers don't annotate .remove() functions with __exit?
An alternative would be to drop the __exit annotation, at the expense
of a slightly larger kernel in the built-in case.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds