linux-kernel - Re: [PATCH 2/2] ASoC: atmel: compile pcm driver in snd-soc-atmel_ssc

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Message-ID: <20150527091902.GN3199@piout.net>
Date:	Wed, 27 May 2015 11:19:02 +0200
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Paul Bolle <pebolle@...cali.nl>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Mark Brown <broonie@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ASoC: atmel: compile pcm driver in
 snd-soc-atmel_ssc_dai

On 27/05/2015 at 09:50:24 +0200, Paul Bolle wrote :
> Now that this patch is already applied my remarks can only be addressed
> in a follow up patch. (Perhaps such a patch is already queued.)
> 
> On Tue, 2015-05-26 at 00:04 +0200, Alexandre Belloni wrote:
> > --- a/sound/soc/atmel/Kconfig
> > +++ b/sound/soc/atmel/Kconfig
>  
> >  config SND_ATMEL_SOC_PDC
> > -	tristate
> > +	bool
> >  
> >  config SND_ATMEL_SOC_DMA
> > -	tristate
> > +	bool
> >  	select SND_SOC_GENERIC_DMAENGINE_PCM
> 
> > --- a/sound/soc/atmel/Makefile
> > +++ b/sound/soc/atmel/Makefile
> 
> > -snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
> > -snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
> > -snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o
> > +snd-soc-atmel-pcm-$(CONFIG_SND_ATMEL_SOC_PDC) := atmel-pcm-pdc.o
> > +snd-soc-atmel-pcm-$(CONFIG_SND_ATMEL_SOC_DMA) += atmel-pcm-dma.o
> > +snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o $(snd-soc-atmel-pcm-y)
> >  
> > -obj-$(CONFIG_SND_ATMEL_SOC_PDC) += snd-soc-atmel-pcm-pdc.o
> > -obj-$(CONFIG_SND_ATMEL_SOC_DMA) += snd-soc-atmel-pcm-dma.o
> >  obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
> 
> The code in atmel-pcm-pdc.c and atmel-pcm-dma.c will now either be part
> of the snd-soc-atmel_ssc_dai.ko or be built-in. That means, I think,
> that:
> - the (in total) four uses of EXPORT_SYMBOL() in these two files can be
>   dropped;
> - MODULE_AUTHOR() and friends, and probably also the include of
>   linux/module.h, can be dropped from these two files.
> 

Yeah, I as not sure how to merge those MODULE_AUTHOR but I checked and
the information is correctly included.

> Furthermore, the references to CONFIG_SND_ATMEL_SOC_PDC_MODULE and
> CONFIG_SND_ATMEL_SOC_DMA_MODULE in atmel-pcm.h can be removed now.
> 

Indeed.

However, the Kconfig maintainer found a way to do the right thing so we
may as well drop that patch and keep those as modules.

Nicolas, what do you think?

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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