netdev - Re: [PATCH RFC] [1/9] Core module symbol namespaces code and intro.

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Date:	Wed, 28 Nov 2007 12:34:02 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Roland Dreier <rdreier@...co.com>, Andi Kleen <ak@...e.de>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	sam@...nborg.org
Subject: Re: [PATCH RFC] [1/9] Core module symbol namespaces code and intro.

On Tuesday 27 November 2007 21:50:16 Andi Kleen wrote:
> Goals are:
> - Limit the interfaces available for out of tree modules to reasonably
> stable ones that are already used by a larger set of drivers.

Not the goals.  I haven't seen the *problem* yet.

> - Limit size of exported API to make stable ABIs for enterprise
> distributions easier
> [Yes I know that is not a popular topic on l-k, but it's a day-to-day
> problem for these distros and out of tree solutions do not work]

That's a real problem, and I sympathise with the idea of marking symbols as 
externally useful (or, practically, mark internal).

But we now need to decide what's "externally useful".  The currently line for 
exports is simple: someone in-tree needs it.  You dislike the suggestion to 
extend this to "if more than one in-tree needs it it's open".

Currently your criterion seems to be "does the maintainer hate external 
modules?" which I don't think will be what you want...

Cheers,
Rusty.
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