linux-kernel - Re: [PATCH v2] tpm_tis: Remove the HID IFX0102

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Date:   Wed, 24 Jun 2020 23:21:50 -0700
From:   Jerry Snitselaar <jsnitsel@...hat.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     linux-integrity@...r.kernel.org,
        Kylene Jo Hall <kjhall@...ibm.com>,
        "Ferry Toth :" <ferry.toth@...inga.info>,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...l.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] tpm_tis: Remove the HID IFX0102

On Thu Jun 25 20, Jarkko Sakkinen wrote:
>Acer C720 running Linux v5.3 reports this in klog:
>
>tpm_tis: 1.2 TPM (device-id 0xB, rev-id 16)
>tpm tpm0: tpm_try_transmit: send(): error -5
>tpm tpm0: A TPM error (-5) occurred attempting to determine the timeouts
>tpm_tis tpm_tis: Could not get TPM timeouts and durations
>tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
>tpm tpm0: tpm_try_transmit: send(): error -5
>tpm tpm0: A TPM error (-5) occurred attempting to determine the timeouts
>tpm_tis 00:08: Could not get TPM timeouts and durations
>ima: No TPM chip found, activating TPM-bypass!
>tpm_inf_pnp 00:08: Found TPM with ID IFX0102
>
>% git --no-pager grep IFX0102 drivers/char/tpm
>drivers/char/tpm/tpm_infineon.c:	{"IFX0102", 0},
>drivers/char/tpm/tpm_tis.c:	{"IFX0102", 0},		/* Infineon */
>
>Obviously IFX0102 was added to the HID table for the TCG TIS driver by
>mistake.
>
>Fixes: 93e1b7d42e1e ("[PATCH] tpm: add HID module parameter")
>Link: https://bugzilla.kernel.org/show_bug.cgi?id=203877
>Cc: Kylene Jo Hall <kjhall@...ibm.com>
>Reported-by: Ferry Toth: <ferry.toth@...inga.info>
>Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

Reviewed-by: Jerry Snitselaar <jsnitsel@...hat.com>