linux-kernel - Re: [PATCH] NOMMU: Work around the lack of vmap()/vunmap() in firmware_loading

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Message-ID: <AANLkTinK43xhXCYNPfbQq-ak+1hZf2+ykr097GASNyoH@mail.gmail.com>
Date:	Thu, 17 Mar 2011 02:40:31 -0400
From:	Mike Frysinger <vapier@...too.org>
To:	David Howells <dhowells@...hat.com>
Cc:	uclinux-dev@...inux.org, linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org
Subject: Re: [PATCH] NOMMU: Work around the lack of vmap()/vunmap() in
 firmware_loading_store() [ver #2]

On Thu, Apr 8, 2010 at 09:51, David Howells wrote:
> Work around the lack of vmap()/vunmap() in firmware_loading_store() when
> operating in NOMMU mode.  vmap() cannot be implemented as there's no virtual
> mapping available.
>
> Instead, in NOMMU mode, make available a function (vcoalesce()) that can
> coalesce the supplied data into one big buffer and store as the address vmap()
> would've returned.
>
> This can be #defined to vmap() in NOMMU mode by interested parties.

these things work for us ... were you going to push them up to mainline ?
-mike
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