linux-kernel - Re: [tpmdd-devel] TPM drivers support and Linux Integrity Module for 2.6.30

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Date:	Mon, 15 Jun 2009 18:42:35 -0300
From:	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>
To:	Eric Paris <eparis@...hat.com>
CC:	"dds (☕)" <dds@...gle.com>,
	seiji.munetoh@...il.com, tpmdd-devel@...ts.sourceforge.net,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Shahbaz Khan <shaz.linux@...il.com>
Subject: Re: [tpmdd-devel] TPM drivers support and Linux Integrity Module
 for 2.6.30


> 2- Forget manufacturer_id and base the decision on the PNP_ID as david
> suggested. I previously considered it but since it would end up in
> modifying tpm_tis_init() prototype (struct device * to struct pnp_dev *)
> and then wouldn't work when loading as a module with force option on, so
> I moved to the manufacturer_id approach.
>
> I'll get back to #2 meanwhile and post the patch, seems not hard to
> accomplish though..
>   
Yes, it wasn't hard, at all, just get the id with to_pnp_dev(dev)->id.

However, the chip is buggy, there's no reason to make a compliant
upstream code modify its behavior just due an 'exception' for a not
compliant hardware.
No need to worry about it too though, the workaround is available as I
pointed earlier (Seiji's)...

Thanks,
Rajiv


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