linux-kernel - Re: [PATCH] staging: Disable lustre file system for MIPS, SH, and XTENSA

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Date:	Sun, 8 Sep 2013 18:59:45 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	Peng Tao <tao.peng@....com>, Peng Tao <bergwolf@...il.com>
Subject: Re: [PATCH] staging: Disable lustre file system for MIPS, SH, and
 XTENSA

On Sun, Sep 08, 2013 at 06:03:00PM -0700, Guenter Roeck wrote:
> mips allmodconfig fails with
> 
> ERROR: "copy_from_user_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko]
> undefined!
> 
> which is due to LUSTRE using copy_from_user_page which is not exported by any
> architecture.

Any, or just these arches?

> Unfortunately, LUSTRE can only be built as module, so there is no
> easy fix.

Can't we just export the functions for those arches?  Surely lutre
isn't the first/only driver that needs this?

thanks,

greg k-h
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