linux-kernel - Re: [PATCH v4 2/4] tpm: ignore burstcount to improve tpm

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Message-ID: <20171126152218.c5fsr7uhs3ipwwha@linux.intel.com>
Date:   Sun, 26 Nov 2017 17:22:18 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Nayna Jain <nayna@...ux.vnet.ibm.com>
Cc:     Alexander.Steffen@...ineon.com, linux-integrity@...r.kernel.org,
        zohar@...ux.vnet.ibm.com, linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, peterhuewe@....de,
        tpmdd@...horst.net, patrickc@...ibm.com
Subject: Re: [PATCH v4 2/4] tpm: ignore burstcount to improve tpm_tis send()
 performance

On Thu, Nov 23, 2017 at 08:17:42PM +0530, Nayna Jain wrote:
> Yeah, you are right, the first version of this patch sent all the
> bytes together, but after hearing ddwg inputs, i.e. "The last byte was
> introduced for error checking purposes (history).", I reverted back to
> original to be safe.

What does that mean ie error checking purposes?

> It seems that the last byte was sent from the beginning (27084ef
> [PATCH] tpm: driver for next generation TPM chips,), does anyone
> remember the reason ?

Sent from the beginning?

/Jarkko