linux-kernel - Re: [PATCH v3 08/10] ARM: configs: add MPS2 defconfig

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Date:	Tue, 16 Feb 2016 15:14:14 +0000
From:	Vladimir Murzin <vladimir.murzin@....com>
To:	Arnd Bergmann <arnd@...db.de>, linux-arm-kernel@...ts.infradead.org
CC:	mark.rutland@....com, devicetree@...r.kernel.org,
	linux@....linux.org.uk, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, gregkh@...uxfoundation.org,
	daniel.lezcano@...aro.org, linux-kernel@...r.kernel.org,
	robh+dt@...nel.org, andy.shevchenko@...il.com,
	galak@...eaurora.org, linux-serial@...r.kernel.org,
	u.kleine-koenig@...gutronix.de, tglx@...utronix.de,
	linux-api@...r.kernel.org, jslaby@...e.cz
Subject: Re: [PATCH v3 08/10] ARM: configs: add MPS2 defconfig

On 16/02/16 15:08, Arnd Bergmann wrote:
> On Tuesday 16 February 2016 14:51:59 Vladimir Murzin wrote:
>>>
>>> Why CONFIG_EMBEDDED? You probably mean CONFIG_EXPERT, but then what do
>>> you need that for?
>>
>> TBH, I have no special requirement for this option to be set and now,
>> looking at Kconfig entry for this option, I think that I got it here
>> because I stated configuration with allnoconfig.
>>
>> OTOH, I don't see how harmful it can be since description says:
>>
>>           This option should be enabled if compiling the kernel for
>>           an embedded system so certain expert options are available
>>           for configuration
>>
>> yes, it selects CONFIG_EXPERT and that had side effect that, for
>> example, CONFIG_NAMESPACE could be compiled out.
>>
>> Have I missed something around it?
> 
> Just the history behind this symbol. We removed it a while ago in
> favor if CONFIG_EXPERT, assuming that it makes it clearer that it's
> not just for embedded systems, or for systems with small memory.
> 
> It's  basically a zombie symbol that nobody should use directly
> (independent of what the documentation says...).

Good to know! I'll drop it then.

Thanks
Vladimir

> 
> 	Arnd
> 
> 
>