linux-kernel - Re: [2.6.24-rc5-mm1] Why CONFIG_BLK_DEV_RAM=m makes \\\"#ifdef CONFIG_BLK_DEV

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Message-Id: <200712140615.lBE6FX4b058136@www262.sakura.ne.jp>
Date:	Fri, 14 Dec 2007 15:15:32 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	linux-kernel@...r.kernel.org,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Subject: Re: [2.6.24-rc5-mm1] Why CONFIG_BLK_DEV_RAM=m makes \\\"#ifdef CONFIG_BLK_DEV_RAM\\\" false?

Hello.

Randy Dunlap <randy.dunlap@...cle.com> wrote:
> I don't think that this is a change from the recent past.

Oh, it is my mistake.

I found that choosing CONFIG_BLK_DEV_RAM=m makes
impossible to pass an initrd image since
populate_rootfs() in init/initramfs.c omits
code for checking whether the image is an initrd or not.
But I didn't know CONFIG_BLK_DEV_RAM is tristate.
So, I have to change to CONFIG_BLK_DEV_RAM=y when
I want to pass an initrd image after "make allmodconfig".

Thank you.
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