From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnd Bergmann <arnd@arndb.de>
Subject: Re: [RFC PATCH v2 03/10] ARM: at91: introduce OLD_IRQ_AT91 Kconfig option
Date: Sat, 29 Mar 2014 10:12:54 +0100
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Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>, Boris BREZILLON <b.brezillon.dev@gmail.com>, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, Nicolas Ferre <nicolas.ferre@atmel.com>, linux-kernel@vger.kernel.org, Rob Landley <rob@landley.net>, Thomas Gleixner <tglx@linutronix.de>, Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
List-Id: devicetree@vger.kernel.org

On Saturday 29 March 2014 10:06:39 Thomas Petazzoni wrote:
> Dear Boris BREZILLON,
> 
> On Fri, 28 Mar 2014 18:59:01 +0100, Boris BREZILLON wrote:
> 
> > +config OLD_IRQ_AT91
> > +     bool
> > +     default false
> 
> I don't think "default false" is a valid Kconfig construct. It could be
> "default n", but that's useless since "default n" is the default
> behavior. So I believe you can simply get rid of that line.

I think the above is syntactically correct, but it would be highly confusing in
anyone ever does

config false
	def_bool y

;-)

Aside from that, these three have completely identical meaning:

config OLD_IRQ_AT91
	bool

config OLD_IRQ_AT91
	def_bool n

config OLD_IRQ_AT91
	bool
	default n

	Arnd