linux-kernel - Re: [PATCH 1/2] tpm, tpm_tis: use acpi_driver instead of pnp

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Message-ID: <20150930055835.GB3874@intel.com>
Date:	Wed, 30 Sep 2015 08:58:35 +0300
From:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	peterhuewe@....de, gregkh@...uxfoundation.org,
	jgunthorpe@...idianresearch.com, akpm@...ux-foundation.org,
	Marcel Selhorst <tpmdd@...horst.net>
Subject: Re: [PATCH 1/2] tpm, tpm_tis: use acpi_driver instead of pnp_driver

On Tue, Sep 29, 2015 at 06:30:25PM +0100, Matthew Garrett wrote:
> On Tue, Sep 29, 2015 at 08:07:10PM +0300, Jarkko Sakkinen wrote:
> > Migrate to struct acpi_driver in order to get out of 7 character
> > limitation for the HID.
> 
> Are we guaranteed that there are no old systems reporting these devices 
> via pnpbios rather than acpi?

Right. I think it would make sense to be conservative and use
acpi_driver only for MSFT0101 because at least I don't know answer
to this question. It would be a risk to take these fixes to the stable
kernels othwerwise.

> -- 
> Matthew Garrett | mjg59@...f.ucam.org

/Jarkko
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