linux-kernel - [PATCH v2 0/6] Minor bug fixes and clean-up for MHI host driver

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Date:   Fri,  6 Nov 2020 09:44:44 -0800
From:   Bhaumik Bhatt <bbhatt@...eaurora.org>
To:     manivannan.sadhasivam@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, hemantk@...eaurora.org,
        jhugo@...eaurora.org, linux-kernel@...r.kernel.org,
        Bhaumik Bhatt <bbhatt@...eaurora.org>
Subject: [PATCH v2 0/6] Minor bug fixes and clean-up for MHI host driver

This patch series serves to clean up the MHI host driver by removing an
unnecessary counter and an unused function. It also renames a function to make
it clearly worded. There is currently no user of this exported function which
makes it is safe to do so now.

Bug fixes include adding a missing EXPORT_SYMBOL_GPL to a function, and adding
a return value check to bail out of RDDM download in kernel panic path.

An outlier among the group exports the mhi_get_exec_env() API for use by
controller drivers, in case they need to determine behavior on the basis of the
current execution environment.

This set of patches was tested on arm64.

v2:
-Removed the declaration for mhi_get_exec_env() from internal.h
-Improved on the error log message in RDDM download exit case due to unknown EE

Bhaumik Bhatt (6):
  bus: mhi: core: Remove unnecessary counter from mhi_firmware_copy()
  bus: mhi: core: Add missing EXPORT_SYMBOL for mhi_get_mhi_state()
  bus: mhi: core: Expose mhi_get_exec_env() API for controllers
  bus: mhi: core: Remove unused mhi_fw_load_worker() declaration
  bus: mhi: core: Rename RDDM download function to use proper words
  bus: mhi: core: Skip RDDM download for unknown execution environment

 drivers/bus/mhi/core/boot.c     | 15 +++++++++------
 drivers/bus/mhi/core/internal.h |  2 --
 drivers/bus/mhi/core/main.c     |  2 ++
 include/linux/mhi.h             | 12 +++++++++---
 4 files changed, 20 insertions(+), 11 deletions(-)

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