linux-kernel - Re: [PATCH] VMware balloon: force compiling as a module

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Date:	Tue, 29 Jun 2010 18:28:59 +0200
From:	Bruno Prémont <bonbons@...ux-vserver.org>
To:	Alexander Clouter <alex@...riz.org.uk>,
	Dmitry Torokhov <dtor@...are.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] VMware balloon: force compiling as a module

On Tue, 29 June 2010 Alexander Clouter <alex@...riz.org.uk> wrote:
> Dmitry Torokhov <dtor@...are.com> wrote:
> >
> > VMware Tools installer requires the upstream driver to be compiled
> > as a module in order to detect its presence and avoid installing
> > our own version on top of it. To avoid surprises with 2 versions
> > of the driver being installed and fighting with each other, let's
> > force the driver to be compiled as a module unless user selects
> > CONFIG_EMBEDDED.
> >
> *barf*
> 
> This surely is a problem in the installer and not the kernel?  Can you 
> not nosey around in /sys/class/misc or where-ever your driver appears?  
> If it does not, then I would probably suggest a patch to your balloon 
> driver that dumps some details in there, including module version 
> information.
> 
> Eugh.

In addition, the installer may check under /sys/module/ for it (as for
any/most code that can be built as a module), even for built-in code.
(if balloon driver does not show up there when built-in it would be
better to get it to show up there)

Bruno
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