Re: [PATCH 2/2] Enable 'make CONFIG_FOO=y oldconfig'

From: David Woodhouse
Date: Thu Aug 11 2011 - 11:51:07 EST


On Thu, 2011-08-11 at 17:24 +0200, Michal Marek wrote:
>
> One of my use cases for all.config is
>
> $ cp .../older-working-config all.config
> $ make KCONFIG_ALLCONFIG=1 allmodconfig
>
> i.e. reuse what is possible from an older config and enable all new
> options. Surely it sometimes results in suboptimal configuration with
> unwanted debug options enabled, but most of the time it works. I won't
> be happy if you make it hard fail because of renamed or removed config
> options.

On the other hand, 'make CONFIG_FOO=y oldconfig' probably *should* fail.
Perhaps it should set what it *can*, if you try to set multiple options
at once â but if it can't set all of them, it should exit with failure
status... which will mean that no subsequent build target will happen.

--
dwmw2

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