[PATCH 1/6] ARM: move ARCH config definitions into mach dirs

On 08/29/2012 06:31 PM, Russell King - ARM Linux wrote:

On Wed, Aug 29, 2012 at 05:49:55PM -0500, Rob Herring wrote:

quoted

From: Rob Herring <redacted>

In preparation for mulit-platform support, convert all platforms' ARCH_
definition to a hidden option and create a new choice option.

This is churn and annoyance.  It's definitely annoyance for the
autobuilder because it's going to have to have symbols changed in the
seed configs. It's annoyance for people because they're going to have
to manually reselect their SoC types in every build they do.

I think also that Kconfig will end up on 'make oldconfig' selecting
one of the platforms, deselecting all the dependencies on that platform,
which then means you'll have thousands of Kconfig options to answer.

I've been there with x86 configs, and spent something like an hour
piecing together a configuration for my laptop, answering one question
every couple of seconds.  That is not a nice experience to inflict on
people.

Then what do you suggest? I can think of a few alternatives.

Leave the current name and make the hidden option a new name like
ARCH_xx_OPTIONS. This would require renaming ARCH_xxx for each platform
all over the tree. I don't care to sign up for that task...

Move platforms one by one out of the choice as they are converted. I
can't think of a reason for a platform to be in both places except we
would have to figure out something for getting DEBUG_LL to work.

Rob