linux-kernel - Re: char/tpm: tpm_infineon no longer loaded for HP 2510p laptop

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Date:	Thu, 21 Aug 2008 14:40:26 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Bjorn Helgaas <bjorn.helgaas@...com>, Frans Pop <elendil@...net.nl>
Cc:	linux-kernel@...r.kernel.org, Marcel Selhorst <tpm@...horst.net>,
	Kay Sievers <kay.sievers@...y.org>,
	Thomas Renninger <trenn@...e.de>,
	Adam Belay <ambx1@....rr.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: char/tpm: tpm_infineon no longer loaded for HP 2510p laptop

On Wednesday, 20 of August 2008, Bjorn Helgaas wrote:
> On Monday 18 August 2008 07:40:24 am Frans Pop wrote:
> > While comparing the loaded modules for 2.6.26 and 2.6.27-rc3 for my HP 
> > 2510p, I noticed that the tpm_infineon module and related modules no 
> > longer get loaded automatically.
> > 
> > The difference seems to be that 2.6.26 listed:
> > /lib/modules/2.6.26.2/modules.alias:alias pnp:dIFX0102* tpm_infineon
> > /lib/modules/2.6.26.2/modules.alias:alias pnp:dIFX0101* tpm_infineon
> > 
> > while 2.6.27 has:
> > /lib/modules/2.6.27-rc3/modules.alias:alias acpi*:IFX0101:* tpm_infineon
> > /lib/modules/2.6.27-rc3/modules.alias:alias pnp:dIFX0101* tpm_infineon
> > 
> > My system has:
> > $ grep IFX /sys/bus/pnp/devices/*/id
> > /sys/bus/pnp/devices/00:02/id:IFX0102
> 
> drivers/char/tpm/tpm_infineon.c hasn't changed since v2.6.26.  I think
> the problem is more likely related to commit 22454cb99fc39f2629a:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=22454cb99fc39f2629ad06a7eccb3df312f8830e

Frans, could you verify if reverting commit 22454cb99fc39f2629a fixes the
problem for you?

Thanks,
Rafael
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