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be0a3600aa
Both trip_point_temp_store() and trip_point_hyst_store() use thermal_zone_set_trip() to update a given trip point, but none of them actually needs to change more than one field in struct thermal_trip representing it. However, each of them effectively calls __thermal_zone_get_trip() twice in a row for the same trip index value, once directly and once via thermal_zone_set_trip(), which is not particularly efficient, and the way in which thermal_zone_set_trip() carries out the update is not particularly straightforward. Moreover, input processing need not be done under the thermal zone lock in any of these functions. Rework trip_point_temp_store() and trip_point_hyst_store() to address the above, move the part of thermal_zone_set_trip() that is still useful to a new function called thermal_zone_trip_updated() and drop the rest of it. While at it, make trip_point_hyst_store() reject negative hysteresis values. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.