linux-kernel - Re: [RFC PATCH] Allow optional module parameters

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Message-ID: <51D49655.8030206@suse.cz>
Date:	Wed, 03 Jul 2013 23:23:33 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Jonathan Masters <jcm@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Lucas De Marchi <lucas.demarchi@...fusion.mobi>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ben Hutchings <bhutchings@...arflare.com>,
	"linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>
Subject: Re: [RFC PATCH] Allow optional module parameters

Dne 3.7.2013 23:17, Andy Lutomirski napsal(a):
> On Wed, Jul 3, 2013 at 2:03 PM, Michal Marek <mmarek@...e.cz> wrote:
>> Dne 1.7.2013 18:33, Jonathan Masters napsal(a):
>>> One caveat. Sometimes we have manufactured parameters intentionally
>>> to cause a module to fail. We should standardize that piece.
>>
>> You have:
>>
>>   blacklist foo
>>
>> to prevent udev from loading a module and
>>
>>   install foo /bin/true
>>
>> to prevent modprobe from loading the module at all. What is the
>> motivation for inventing a third way, through adding invalid parameters?
>>
> 
> FWIW, I've occasionally booted with modulename.garbage=1 to prevent
> modulename from loading at boot.  It may be worth adding a more
> intentional way to do that.

Hm, right, there seems to be no clean way to achieve this via a
commandline argument. Maybe define a magic module option to tell the
module loader not to load a module?

Thanks,
Michal

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