linux-kernel - Re: [PATCH 1/5] ARM: defconfigs: add MTD_SPI

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Message-ID: <20140429182815.GA28069@arch.cereza>
Date:	Tue, 29 Apr 2014 15:28:15 -0300
From:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
To:	Jason Cooper <jason@...edaemon.net>
Cc:	Brian Norris <computersforpeace@...il.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Marek Vasut <marex@...x.de>,
	Russell King <linux@....linux.org.uk>,
	Thierry Reding <thierry.reding@...il.com>,
	linux-mtd@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>,
	Olof Johansson <olof@...om.net>,
	Shawn Guo <shawn.guo@...escale.com>
Subject: Re: [PATCH 1/5] ARM: defconfigs: add MTD_SPI_NOR (new dependency for
 M25P80)

On Apr 29, Jason Cooper wrote:
> On Tue, Apr 29, 2014 at 02:22:27PM -0300, Ezequiel Garcia wrote:
> > On Apr 25, Stephen Warren wrote:
> > > On 04/17/2014 01:21 AM, Brian Norris wrote:
> > > > These defconfigs contain the CONFIG_M25P80 symbol, which is now
> > > > dependent on the MTD_SPI_NOR symbol. Add CONFIG_MTD_SPI_NOR to the
> > > > relevant defconfigs.
> > > > 
> > > > At the same time, drop the now-nonexistent CONFIG_MTD_CHAR symbol.
> 
> Excuse my ignorance of the history of this bug, but shouldn't this be
> solved in the Kconfig logic?  Since when do we solve config symbol
> dependency bugs in the defconfigs?
> 

Long story short: it was decided that select'ing this new symbol was not
appropriate. Instead, it must be explicitly selected by the user, hence
the defconfig fix.

The full story: https://lkml.org/lkml/2014/4/17/45

And in particular: https://lkml.org/lkml/2014/4/21/425
-- 
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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