linux-kernel - Re: [PATCH] kbuild: generate modules.builtin

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Date:	Wed, 27 May 2009 23:26:12 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Michal Marek <mmarek@...e.cz>
Cc:	Sam Ravnborg <sam@...nborg.org>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kbuild: generate modules.builtin

On Tue, May 26, 2009 at 17:25, Michal Marek <mmarek@...e.cz> wrote:
> To make it easier for tools like mkinitrd to detect whether a needed
> module is missing or whether it is compiled into the kernel, install a
> modules.builtin file listing all modules built into the kernel. This is
> done by generating an alternate config file with all tristate =y options
> set to =Y and reading the makefiles with this config included. The built
> in modules then appear in obj-Y.

That looks very useful.

We like to have that for modprobe not to throw an error if a "module"
is already in the kernel, because it is compiled in. Only modules with
parameters show up in /sys/modules/ and they are already handled fine.

Thanks,
Kay
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