linux-kernel - Re: [PATCH 5/6] module: make modversion_info contain a pointer, not an array.

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Message-Id: <1233211823.3937.1.camel@perihelion.bos.jonmasters.org>
Date:	Thu, 29 Jan 2009 01:50:23 -0500
From:	Jon Masters <jonathan@...masters.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	linux-kernel@...r.kernel.org, Shawn Bohrer <shawn.bohrer@...il.com>
Subject: Re: [PATCH 5/6] module: make modversion_info contain a pointer,
	not an array.

On Thu, 2009-01-29 at 08:59 +1030, Rusty Russell wrote:

> We did discuss changing modversions not to descend more than
> one level deep into types (ie. MODVERSION(int fn(struct foo *))
> would depend on the type of struct foo, but not the type of any
> struct pointers in struct foo) to reduce the problem where header
> changes cause type definitions to be exposed or hidden and thus
> change the modversion.

Yeah. We looked at that for a certain Enterprise Linux distribution but
various people suggested it was more hassle than it was worth to get it
right. I did do some initial poking - I'll dig it up and post it here.

Jon.


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