linux-kernel - Re: [PATCH v3 3/5] tpm: migrate tpm2_probe() to use struct tpm

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Message-ID: <20180316122129.GA2458@linux.intel.com>
Date:   Fri, 16 Mar 2018 14:21:29 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/5] tpm: migrate tpm2_probe() to use struct tpm_buf

On Mon, Mar 05, 2018 at 05:52:24PM -0500, Mimi Zohar wrote:
> Hi Jarrko,
> 
> On Mon, 2018-03-05 at 18:56 +0200, Jarkko Sakkinen wrote:
> > In order to make struct tpm_buf the first class object for constructing TPM
> > commands, migrate tpm2_probe() to use it.
> > 
> > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
> 
> With this patch, the Pi doesn't find the TPM.  I'm seeing the
> following line in dmesg.
> 
> [    1.087414] tpm_tis_spi: probe of spi0.0 failed with error 256

Thank you for reporting this Mimi. Does it have TPM1/TPM2?

/Jarkko