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Date: Sun, 08 Sep 2013 19:24:19 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
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 09/08/2013 06:59 PM, Greg Kroah-Hartman wrote:
> 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?
>
Other architectures implement it as define as far as I can see.
>> 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?
>
That would be another option.
Actually, turns out Geert submitted a patch to do this for mips already, and Ralf applied it:
https://lkml.org/lkml/2013/9/5/111
So please forget this patch. If sh/xtensa actually need it, we can do the same there.
Guenter
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