linux-kernel - Re: [tpmdd-devel] [PATCH v2] drivers/tpm: add xen tpmfront interface

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Date:	Wed, 22 May 2013 14:47:01 -0500
From:	Kent Yoder <shpedoikal@...il.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	leosilva@...ux.vnet.ibm.com, adlai@...ux.vnet.ibm.com
Cc:	Daniel De Graaf <dgdegra@...ho.nsa.gov>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	TPM Device Driver List <tpmdd-devel@...ts.sourceforge.net>,
	Ian.Campbell@...rix.com, Jan Beulich <JBeulich@...e.com>,
	xen-devel@...ts.xen.org
Subject: Re: [tpmdd-devel] [PATCH v2] drivers/tpm: add xen tpmfront interface

>> +     notify_remote_via_evtchn(priv->evtchn);
>> +
>> +     ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
>
> Um, + 6? Why? Is there an #define for that magic constant?
> Should this value be read before you do the wait_for_tpm_stat stuff?

  This is hardcoded to 6 even in tpm.c.  Time for a #define...

> Otherwise it looks OK to me. Should this go through me or Kent?
> And if so, is Kent waiting for my feedback?

  My comments were minor -- I was expecting feedback on your earlier
comments before merging.  I think this should go through the tpmdd
maintainer if its going to live in drivers/char/tpm though.

Kent

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