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    Subject[PATCH v3 00/12] add header file for kelvin to/from Celsius conversion helpers
    Date
    There are several helper macros to convert kelvin to/from Celsius in
    <linux/thermal.h> for thermal drivers. These are useful for any other
    drivers or subsystems, but it's odd to include <linux/thermal.h> just for
    the helpers.

    This adds a new <linux/units.h> that provides the equivalent inline
    functions for any drivers or subsystems, and switches all the users of
    conversion helpers in <linux/thermal.h> to use <linux/units.h>
    helpers.

    * v3
    - rename new header name from <linux/temperature.h> to <linux/units.h>
    - add milli_kelvin_to_millicelsius() and millicelsius_to_milli_kelvin() and
    use them for implementing other helpers
    - add MILLIDEGREE_PER_DEGREE and MILLIDEGREE_PER_DECIDEGREE and replace
    the hardcoded constants
    - add kelvin_to_celsius() and celsius_to_kelvin() in <linux/units.h>
    - add Reviewed-by tags
    - switch iwlegacy driver to use <linux/units.h> helpers
    - switch iwlwifi driver to use <linux/units.h> helpers
    - remove unused TO_MCELSIUS macro in armada thermal driver
    - switch qcom-vadc-common module to use <linux/units.h> helpers

    * v2
    - add deci_kelvin_to_millicelsius_with_offset() in linux/temperature.h
    - stop including linux/temperature.h from linux/thermal.h
    - include <linux/temperature.h> explicitly from thermal drivers
    - fix s/temprature/temperature/ typo in commit log
    - use deci_kelvin_to_millicelsius_with_offset() in ACPI thermal zone driver
    - don't mix up another fix (format string for cellsius value)
    - add Acked-by and Reviewed-by tags

    Akinobu Mita (12):
    add helpers for kelvin to/from Celsius conversion
    ACPI: thermal: switch to use <linux/units.h> helpers
    platform/x86: asus-wmi: switch to use <linux/units.h> helpers
    platform/x86: intel_menlow: switch to use <linux/units.h> helpers
    thermal: int340x: switch to use <linux/units.h> helpers
    thermal: intel_pch: switch to use <linux/units.h> helpers
    nvme: hwmon: switch to use <linux/units.h> helpers
    thermal: remove kelvin to/from Celsius conversion helpers from
    <linux/thermal.h>
    wireless: iwlegacy: use <linux/units.h> helpers
    wireless: iwlwifi: use <linux/units.h> helpers
    thermal: armada: remove unused TO_MCELSIUS macro
    iio: adc: qcom-vadc-common: use <linux/units.h> helpers

    drivers/acpi/thermal.c | 36 +++++-----
    drivers/iio/adc/qcom-vadc-common.c | 6 +-
    drivers/iio/adc/qcom-vadc-common.h | 1 -
    drivers/net/wireless/intel/iwlegacy/4965-mac.c | 3 +-
    drivers/net/wireless/intel/iwlegacy/4965.c | 11 +--
    drivers/net/wireless/intel/iwlegacy/common.h | 3 -
    drivers/net/wireless/intel/iwlwifi/dvm/dev.h | 5 --
    drivers/net/wireless/intel/iwlwifi/dvm/devices.c | 6 +-
    drivers/nvme/host/hwmon.c | 13 ++--
    drivers/platform/x86/asus-wmi.c | 7 +-
    drivers/platform/x86/intel_menlow.c | 9 ++-
    drivers/thermal/armada_thermal.c | 2 -
    .../intel/int340x_thermal/int340x_thermal_zone.c | 7 +-
    drivers/thermal/intel/intel_pch_thermal.c | 3 +-
    include/linux/thermal.h | 11 ---
    include/linux/units.h | 84 ++++++++++++++++++++++
    16 files changed, 139 insertions(+), 68 deletions(-)
    create mode 100644 include/linux/units.h

    Cc: Sujith Thomas <sujith.thomas@intel.com>
    Cc: Darren Hart <dvhart@infradead.org>
    Cc: Andy Shevchenko <andy@infradead.org>
    Cc: Zhang Rui <rui.zhang@intel.com>
    Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
    Cc: Amit Kucheria <amit.kucheria@verdurent.com>
    Cc: Jean Delvare <jdelvare@suse.com>
    Cc: Guenter Roeck <linux@roeck-us.net>
    Cc: Keith Busch <kbusch@kernel.org>
    Cc: Jens Axboe <axboe@fb.com>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Sagi Grimberg <sagi@grimberg.me>
    Cc: Kalle Valo <kvalo@codeaurora.org>
    Cc: Stanislaw Gruszka <sgruszka@redhat.com>
    Cc: Johannes Berg <johannes.berg@intel.com>
    Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
    Cc: Luca Coelho <luciano.coelho@intel.com>
    Cc: Intel Linux Wireless <linuxwifi@intel.com>
    Cc: Jonathan Cameron <jic23@kernel.org>
    Cc: Hartmut Knaack <knaack.h@gmx.de>
    Cc: Lars-Peter Clausen <lars@metafoo.de>
    Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
    --
    2.7.4

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