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Date: Wed, 3 Jul 2013 14:36:48 -0700 From: Andy Lutomirski <luto@...capital.net> To: Lucas De Marchi <lucas.demarchi@...fusion.mobi> Cc: Michal Marek <mmarek@...e.cz>, Jonathan Masters <jcm@...hat.com>, Rusty Russell <rusty@...tcorp.com.au>, "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 On Wed, Jul 3, 2013 at 2:31 PM, Lucas De Marchi <lucas.demarchi@...fusion.mobi> wrote: > On Wed, Jul 3, 2013 at 6:23 PM, Michal Marek <mmarek@...e.cz> wrote: >> 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? > > modprobe.blacklist=modname1,modname2,... is already there, though all > the silliness of blacklist applies unless "-b" is passed (that's the > equivalent behavior of udev) That would probably be good enough for me. It would be neat if this worked for built-in "modules" as well, but that would probably be quite intrusive. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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