From: Dave Jones <davej@redhat.com>
To: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
Roland Dreier <rdreier@cisco.com>, Andi Kleen <ak@suse.de>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
sam@ravnborg.org
Subject: Re: [PATCH RFC] [1/9] Core module symbol namespaces code and intro.
Date: Tue, 27 Nov 2007 14:00:37 -0500 [thread overview]
Message-ID: <20071127190037.GB30057@redhat.com> (raw)
In-Reply-To: <20071126102533.1c774870@freepuppy.rosehill.pdx.hemminger.net>
On Mon, Nov 26, 2007 at 10:25:33AM -0800, Stephen Hemminger wrote:
> 1) Why is everyone so concerned that export symbol space is large?
> - does it cost cpu or running memory?
> - does it cause bugs?
> - or are you just worried about "evil modules"?
To clarify something here, by "evil", don't necessarily think "binary only".
Out of tree modules are frequently using symbols that they shouldn't be.
Because they get no peer-review here, they 'get away with it' for the most part.
Until distro vendors push rebased kernel updates that removed exports that
should never have been exported, and suddenly people like me get bombed
with "Fedora broke my xyz driver" mails.
Reducing the opportunity for people to screw things up is a good thing.
If a symbol is exported, most out-of-tree driver authors seem to
think its "fair game" to use it.
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2007-11-27 19:00 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-22 2:43 [PATCH RFC] [1/9] Core module symbol namespaces code and intro Andi Kleen
2007-11-22 2:43 ` [PATCH RFC] [2/9] Fix duplicate symbol check to also check future gpl and unused symbols Andi Kleen
2007-11-22 2:43 ` [PATCH RFC] [3/9] modpost: Declare the modpost error functions as printf like Andi Kleen
2007-12-10 18:50 ` Sam Ravnborg
2007-12-10 18:58 ` Andi Kleen
2007-12-12 1:37 ` Rusty Russell
2007-11-22 2:43 ` [PATCH RFC] [4/9] modpost: Fix format string warnings Andi Kleen
2007-12-10 18:50 ` Sam Ravnborg
2007-11-22 2:43 ` [PATCH RFC] [5/9] modpost: Fix a buffer overflow in modpost Andi Kleen
2007-12-10 19:32 ` Sam Ravnborg
2007-12-10 19:57 ` Andi Kleen
2007-12-10 20:07 ` Sam Ravnborg
2007-11-22 2:43 ` [PATCH RFC] [6/9] Implement namespace checking " Andi Kleen
2007-11-22 2:43 ` [PATCH RFC] [7/9] Convert TCP exports into namespaces Andi Kleen
2007-11-22 2:43 ` [PATCH RFC] [8/9] Put UDP exports into a namespace Andi Kleen
2007-11-22 2:43 ` [PATCH RFC] [9/9] Add a inet namespace Andi Kleen
2007-11-22 3:03 ` [PATCH RFC] [1/9] Core module symbol namespaces code and intro Arjan van de Ven
2007-11-22 3:37 ` Andi Kleen
2007-11-22 3:52 ` Dave Jones
2007-11-22 3:56 ` Rusty Russell
2007-11-22 8:41 ` Dave Young
2007-11-22 18:19 ` Andi Kleen
2007-11-23 2:06 ` Dave Young
2007-11-22 11:05 ` Christoph Hellwig
2007-11-23 0:25 ` Rusty Russell
2007-11-23 1:36 ` Andi Kleen
2007-11-23 3:35 ` Rusty Russell
2007-11-23 19:53 ` Andi Kleen
2007-11-24 4:53 ` Rusty Russell
2007-11-24 12:39 ` Andi Kleen
2007-11-26 1:23 ` Rusty Russell
2007-11-22 11:46 ` Andi Kleen
2007-11-23 0:29 ` Rusty Russell
2007-11-25 20:29 ` Roland Dreier
2007-11-26 1:25 ` Rusty Russell
2007-11-26 5:58 ` Roland Dreier
2007-11-27 4:26 ` Rusty Russell
2007-11-27 10:50 ` Andi Kleen
2007-11-27 13:58 ` Herbert Xu
2007-11-27 14:12 ` Andi Kleen
2007-11-27 14:36 ` Herbert Xu
2007-11-27 20:02 ` Valdis.Kletnieks
2007-11-28 1:34 ` Rusty Russell
2007-11-22 11:06 ` Christoph Hellwig
2007-11-22 11:54 ` Andi Kleen
2007-11-22 12:03 ` Christoph Hellwig
2007-11-22 12:01 ` Arnaldo Carvalho de Melo
2007-11-22 18:17 ` Andi Kleen
2007-11-25 20:27 ` Roland Dreier
2007-11-26 1:28 ` Rusty Russell
2007-11-26 6:15 ` Roland Dreier
2007-11-27 4:49 ` Rusty Russell
2007-11-27 5:35 ` Tom Tucker
2007-11-27 9:02 ` Andi Kleen
2007-11-27 17:24 ` Adrian Bunk
2007-11-27 17:15 ` Adrian Bunk
2007-11-27 17:45 ` Tom Tucker
2007-11-27 18:59 ` Adrian Bunk
2007-11-28 1:27 ` Rusty Russell
2007-11-28 4:12 ` Tom Tucker
2007-11-27 15:43 ` Jonathan Corbet
2007-11-27 15:58 ` Andi Kleen
2007-11-27 16:33 ` Christoph Hellwig
2007-11-27 22:31 ` Jon Masters
[not found] ` <1196202698.3415.119.camel@jcmlaptop>
2007-11-27 22:37 ` Andi Kleen
2007-11-27 23:00 ` Stephen Hemminger
2007-11-27 23:06 ` Andi Kleen
2007-11-28 16:48 ` Adrian Bunk
2007-11-28 17:31 ` Andi Kleen
2007-11-26 18:25 ` Stephen Hemminger
2007-11-26 22:18 ` Roland Dreier
2007-11-27 19:00 ` Dave Jones [this message]
[not found] ` <20071127210942.GF3406@stusta.de>
2007-11-27 21:15 ` Rick Jones
2007-11-27 21:38 ` Adrian Bunk
2007-11-28 2:01 ` Rick Jones
2007-11-27 21:25 ` Dave Jones
2007-11-27 23:00 ` Valdis.Kletnieks
2007-11-29 16:53 ` Arjan van de Ven
2007-11-30 2:18 ` Rusty Russell
2007-11-29 9:55 ` Arnd Bergmann
2007-11-29 10:00 ` Andi Kleen
2007-11-29 10:21 ` Arnd Bergmann
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