linux-kernel - [PATCH v5 0/4] user space client interface driver

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Message-Id: <1596696063-17802-1-git-send-email-hemantk@codeaurora.org>
Date:   Wed,  5 Aug 2020 23:40:59 -0700
From:   Hemant Kumar <hemantk@...eaurora.org>
To:     gregkh@...uxfoundation.org, manivannan.sadhasivam@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        jhugo@...eaurora.org, bbhatt@...eaurora.org,
        Hemant Kumar <hemantk@...eaurora.org>
Subject: [PATCH v5 0/4] user space client interface driver

V5:
- Removed mhi_uci_drv structure.
- Used idr instead of creating global list of uci devices.
- Used kref instead of local ref counting for uci device and
  open count.
- Removed unlikely macro.

V4:
- Fix locking to protect proper struct members.
- Updated documentation describing uci client driver use cases.
- Fixed uci ref counting in mhi_uci_open for error case.
- Addressed style related review comments.

V3: Added documentation for MHI UCI driver.

V2: Added mutex lock to prevent multiple readers to access same
mhi buffer which can result into use after free.

Hemant Kumar (4):
  bus: mhi: core: Add helper API to return number of free TREs
  bus: mhi: core: Move MHI_MAX_MTU to external header file
  docs: Add documentation for userspace client interface
  bus: mhi: clients: Add userspace client interface driver

 Documentation/mhi/index.rst      |   1 +
 Documentation/mhi/uci.rst        |  39 +++
 drivers/bus/mhi/Kconfig          |   6 +
 drivers/bus/mhi/Makefile         |   1 +
 drivers/bus/mhi/clients/Kconfig  |  15 +
 drivers/bus/mhi/clients/Makefile |   3 +
 drivers/bus/mhi/clients/uci.c    | 662 +++++++++++++++++++++++++++++++++++++++
 drivers/bus/mhi/core/internal.h  |   1 -
 drivers/bus/mhi/core/main.c      |  12 +
 include/linux/mhi.h              |  12 +
 10 files changed, 751 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/mhi/uci.rst
 create mode 100644 drivers/bus/mhi/clients/Kconfig
 create mode 100644 drivers/bus/mhi/clients/Makefile
 create mode 100644 drivers/bus/mhi/clients/uci.c

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