linux-kernel - [PATCH 0/5] tee: shared memory cleanup

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Date:   Thu,  9 Jan 2020 13:36:46 +0100
From:   Jens Wiklander <jens.wiklander@...aro.org>
To:     tee-dev@...ts.linaro.org, linux-kernel@...r.kernel.org
Cc:     Jerome Forissier <jerome@...issier.org>,
        Sumit Garg <sumit.garg@...aro.org>,
        Etienne Carriere <etienne.carriere@...aro.org>,
        Rijo Thomas <Rijo-john.Thomas@....com>,
        Devaraj Rangasamy <Devaraj.Rangasamy@....com>,
        Jens Wiklander <jens.wiklander@...aro.org>
Subject: [PATCH 0/5] tee: shared memory cleanup

Hi,

Here's a group of patches to the tee subsystem with cleanups and not so
urgent fixes related to tee shared memory.

- Unused parts of the shared memory object (struct tee_shm) are removed.
- Shared memory ids usable from user space are not assigned to driver
  private shared memory objects
- The TEE_SHM_USER_MAPPED is used instead of TEE_SHM_REGISTER to accurately
  tell if a shared memory object originates from another user space mapping.

Only unused "features" should be removed with this patch set, there should
be no change in behaviour or breakage with other code.

Thanks,
Jens

Jens Wiklander (5):
  tee: remove linked list of struct tee_shm
  tee: remove unused tee_shm_priv_alloc()
  tee: don't assign shm id for private shms
  tee: remove redundant teedev in struct tee_shm
  tee: tee_shm_op_mmap(): use TEE_SHM_USER_MAPPED

 drivers/tee/tee_core.c    |  1 -
 drivers/tee/tee_private.h |  3 +-
 drivers/tee/tee_shm.c     | 85 +++++++++++----------------------------
 include/linux/tee_drv.h   | 19 +--------
 4 files changed, 27 insertions(+), 81 deletions(-)

-- 
2.17.1