linux-kernel - Re: NFC: CONFIG_NFC

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Date:	Tue, 28 Apr 2015 10:35:52 +0200
From:	Valentin Rothberg <valentinrothberg@...il.com>
To:	Clément Perrochaud 
	<clement.perrochaud@...innov.com>
Cc:	sameo@...ux.intel.com, linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org, lauro.venancio@...nbossa.org,
	aloisio.almeida@...nbossa.org, Paul Bolle <pebolle@...cali.nl>,
	Andreas Ruprecht <rupran@...server.de>,
	hengelein Stefan <stefan.hengelein@....de>
Subject: Re: NFC: CONFIG_NFC_DEBUG not defined

Hi Clément,

thanks for your answer.

On Tue, Apr 28, 2015 at 10:23 AM, Clément Perrochaud
<clement.perrochaud@...innov.com> wrote:
> On Mon, Apr 27, 2015 at 9:03 AM, Valentin Rothberg wrote:
>> Hi Clément,
>>
>> your commit dece45855a8b ("NFC: nxp-nci: Add support for NXP NCI
>> chips") adds the Makefile drivers/nfc/nxp-nci/Makefile with the
>> following line:
>>
>> +ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
>>
>> The Kconfig option NFC_DEBUG is not defined so the line turns out to
>> be a nop.  There is another reference in drivers/nfc/Makefile.  Is
>> there a patch queued somewhere to add the option?
>>
>> I found this issue with ./scripts/checkkconfigsymbols.py by diffing
>> v4.0 and v4.1-rc1.
>
> Hi Valentin,
>
> I only included this line because it was present in the upper-level
> Makefile drivers/nfc/Makefile . As far as I know, there is no plan to
> add this option to the configuration.
>
> What would the most sensible solution to this issue be ? Add the NFC
> Debug feature to the configuration ? Remove it altogether ?

DEBUG is not used in any of the files in drivers/nfc/ so I think we
can safely remove the two lines from the Makefiles.  Do you want me to
prepare a patch?

Kind regards,
 Valentin

> Regards,
>
> --
> Clément Perrochaud
>
> Eff'Innov Technologies
> Caen, Aix-En-Provence, Grenoble
>
> Eff'Innov Technologies
> Campus EffiScience
> 2, Esplanade Anton Philips
> 14460 Colombelles, FRANCE
>
> http://www.effinnov.com
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