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Date: Sat, 20 May 2006 14:19:24 -0700
From: Andrew Morton <akpm@osdl.org>
To: "Josh Boyer" <jwboyer@gmail.com>
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Cc: linux-mtd@lists.infradead.org
Subject: Re: [MTD] Avoid 64-bit division in mtdconcat
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"Josh Boyer" <jwboyer@gmail.com> wrote:
>
> On 5/20/06, Linux-MTD Mailing List <linux-mtd@lists.infradead.org> wrote:
> > Commit:     6c8b44abc86a3e23dd1a22c0ee187f06bd7c7f5d
> > Parent:     5fc3dbc418e01345e25e96b3192a1c46051c3fdc
> > Author:     Andrew Morton <akpm@osdl.org>
> > AuthorDate: Sat May 20 10:17:21 2006 +0100
> > Commit:     David Woodhouse <dwmw2@infradead.org>
> > CommitDate: Sat May 20 10:17:21 2006 +0100
> >
> >     [MTD] Avoid 64-bit division in mtdconcat
> >
> >     WARNING: "__moddi3" [drivers/mtd/mtdconcat.ko] undefined!
> >
> >     Signed-off-by: Andrew Morton <akpm@osdl.org>
> >     Signed-off-by: David Woodhouse <dwmw2@infradead.org>
> 
> NAK.  asm-ppc/div64.h doesn't exist.

It must exist.  Things like mm/vmscan.c include it.