linux-kernel - Re: sys_kcmp (was: Re: [PATCH 1/2] ARM: add finit

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Message-ID: <20120922153744.GB11610@moon>
Date:	Sat, 22 Sep 2012 19:37:44 +0400
From:	Cyrill Gorcunov <gorcunov@...nvz.org>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Kees Cook <keescook@...omium.org>,
	linux-kernel@...r.kernel.org,
	Linux-Arch <linux-arch@...r.kernel.org>,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: sys_kcmp (was: Re: [PATCH 1/2] ARM: add finit_module syscall to
 ARM)

On Sat, Sep 22, 2012 at 03:38:47PM +0200, Ralf Baechle wrote:
> On Sat, Sep 22, 2012 at 02:20:46PM +0100, Russell King wrote:
> 
> > 2. There allegedly exists a patch to remove x86isms from sys_kcmp -
> >    allegedly also in akpm's tree.  However, I've looked through the code in
> >    mainline, and nothing stands out.  Ralf Beachle also said yesterday that
> >    he has looked through from the MIPS PoV and also can't see any x86isms,
> >    so we're both thinking that it should merely have the x86 dependency
> >    removed.
> > 
> > 3. Until the x86 dependency is gone (that depends on what akpm proposes to
> >    do with the patches he's allegedly sitting on), non-x86 arches can only
> >    reserve the syscall, and add an IGNORE for it.
> 
> There is a weak definition provided in kernel/sys_ni.c so it actually can
> be properly wired up in preparation for the day when the dependency in
> Kconfig gets fixed.
> 
> > It would be good to at least get checksyscalls.sh fixed so arch maintainers
> > get their warnings for new syscalls back.
> 
> Indeed.  That script has become just too important.

These are the patches from linux-next/akpm

commit 6dfc4cffd24b0c7dc04ca36471a4a6b2a9fc1377
Author: Heiko Carstens <heiko.carstens@...ibm.com>
Date:   Fri Sep 21 11:01:56 2012 +1000

    syscalls: make kcmp syscall available for all architectures

commit 7f36f199e958ce7009285cd887323cb222ed6b1e
Author: Heiko Carstens <heiko.carstens@...ibm.com>
Date:   Fri Sep 21 10:57:07 2012 +1000

    checksyscalls: fix "here document" handling

So I guess this tree in a good shape just checksyscalls.sh fix should
go upstream, right?
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