linux-kernel - Re: [patch, rfc] mm.h, security.h, key.h and preventing namespace poisoning

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Message-Id: <20071225140504.f4c255d3.akpm@linux-foundation.org>
Date:	Tue, 25 Dec 2007 14:05:04 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	James Morris <jmorris@...ei.org>
Cc:	David Chinner <dgc@....com>, lkml <linux-kernel@...r.kernel.org>,
	linux-security-module@...r.kernel.org,
	Eric Paris <eparis@...hat.com>, dhowells@...hat.com
Subject: Re: [patch, rfc] mm.h, security.h, key.h and preventing namespace
 poisoning

On Thu, 20 Dec 2007 15:11:40 +1100 (EST) James Morris <jmorris@...ei.org> wrote:

> > > +#ifdef CONFIG_SECURITY
> > > +extern unsigned long mmap_min_addr;
> > > +#endif
> > > +
> > >  #include <asm/page.h>
> > >  #include <asm/pgtable.h>
> > >  #include <asm/processor.h>
> > 
> > Fine by me.
> 
> I'll queue it for -mm & 2.6.25.

I don't think we need the ifdef.  If someone incorrectly refers to this
then they'll get a link-time error rather than a compile-time error (bad). 
But we lose an ifdef (good).

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