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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 8 Sep 2013 19:31:52 -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 07:24:19PM -0700, Guenter Roeck wrote:
> 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.

Then why would it be a problem?

> >> 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.

Sounds good to me, consider it forgotten :)

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/