linux-kernel - Re: [PATCH] tpm: vtpm_proxy: Do not run tpm2

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Message-ID: <20170525204414.GA13742@obsidianresearch.com>
Date:   Thu, 25 May 2017 14:44:14 -0600
From:   Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:     Stefan Berger <stefanb@...ux.vnet.ibm.com>
Cc:     jarkko.sakkinen@...ux.intel.com, tpmdd-devel@...ts.sourceforge.net,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tpm: vtpm_proxy: Do not run tpm2_shutdown

On Thu, May 25, 2017 at 04:32:50PM -0400, Stefan Berger wrote:

> It doesn't hang. Everything is torn down immediately. What is primarily
> annoying are these two log messages:
> tpm tpm0: tpm_transmit: tpm_send: error -32
> tpm tpm0: transmit returned -32 while stopping the TPM

I think it would be better to change the core to suppress that logging
if the FD is closed.

Jason