linux-kernel - [PATCH v1 0/3] tpm: prepare for TPM2

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Date:	Wed, 22 Oct 2014 19:23:53 +0300
From:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:	Peter Huewe <peterhuewe@....de>, Ashley Lai <ashley@...leylai.com>,
	Marcel Selhorst <tpmdd@...horst.net>
Cc:	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org, josh.triplett@...el.com,
	christophe.ricard@...il.com, jason.gunthorpe@...idianresearch.com,
	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Subject: [PATCH v1 0/3] tpm: prepare for TPM2

This patch set fixes two race conditions in the TPM subsystem:

* Two-phase initialization for struct tpm_chip so that device can
  initialize fully initialize before exposing itself to the user
  space. Also, in future TPM2 devices must be flagged before they
  can be registered.
* Machines where there are two TPM devices exposed by ACPI have
  a racy lookup for the PPI interface. This patch set fixes this
  issues

In addition, transmit_cmd() is renamed as tpm_transmit_cmd() and
made opaque so that separate command structure can be introduced
for TPM2.

Comments about v1:
* I think this could be pulled to 3.18 because this clearly fixes
  bugs in the current implementation.

Jarkko Sakkinen (3):
  tpm: merge duplicate transmit_cmd() functions
  tpm: two-phase chip management functions
  tpm: fix multiple race conditions in tpm_ppi.c

 drivers/char/tpm/Makefile           |   2 +-
 drivers/char/tpm/tpm-chip.c         | 190 ++++++++++++++++++++++++++++++++++
 drivers/char/tpm/tpm-dev.c          |   4 +-
 drivers/char/tpm/tpm-interface.c    | 201 ++++++------------------------------
 drivers/char/tpm/tpm-sysfs.c        |  23 +----
 drivers/char/tpm/tpm.h              |  32 +++---
 drivers/char/tpm/tpm_atmel.c        |  11 +-
 drivers/char/tpm/tpm_i2c_atmel.c    |  33 ++----
 drivers/char/tpm/tpm_i2c_infineon.c |  37 ++-----
 drivers/char/tpm/tpm_i2c_nuvoton.c  |  44 +++-----
 drivers/char/tpm/tpm_i2c_stm_st33.c |  22 ++--
 drivers/char/tpm/tpm_ibmvtpm.c      |  17 ++-
 drivers/char/tpm/tpm_infineon.c     |  13 ++-
 drivers/char/tpm/tpm_nsc.c          |  11 +-
 drivers/char/tpm/tpm_ppi.c          | 137 ++++++++++++++----------
 drivers/char/tpm/tpm_tis.c          |  94 ++++++++---------
 drivers/char/tpm/xen-tpmfront.c     |  14 +--
 17 files changed, 458 insertions(+), 427 deletions(-)
 create mode 100644 drivers/char/tpm/tpm-chip.c

-- 
2.1.0

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