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Filename Latest commit message Latest commit date
Rafael J. Wysocki f331413e1c ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily
commit 99387b016022c29234c4ebf9abd34358c6e56532 upstream.

Modify acpi_processor_get_platform_limit() to avoid updating its
frequency QoS request when the _PPC return value has not changed
by comparing that value to the previous _PPC return value stored in
the performance_platform_limit field of the struct acpi_processor
corresponding to the given CPU.

While at it, do the _PPC return value check against the state count
earlier, to avoid setting performance_platform_limit to an invalid
value, and make acpi_processor_ppc_init() use FREQ_QOS_MAX_DEFAULT_VALUE
as the "no limit" frequency QoS for consistency.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Hagar Hemdan <hagarhem@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-11 11:53:53 +02:00
arch
block
certs
crypto
Documentation Documentation: security-bugs.rst: clarify CVE handling 2023-08-11 11:53:52 +02:00
drivers ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily 2023-08-11 11:53:53 +02:00
fs btrfs: check if the transaction was aborted at btrfs_wait_for_commit() 2023-08-11 11:53:52 +02:00
include block: Fix a source code comment in include/uapi/linux/blkzoned.h 2023-08-11 11:53:49 +02:00
init
ipc
kernel tracing: Fix warning in trace_buffered_event_disable() 2023-08-11 11:53:50 +02:00
lib
LICENSES
mm
net net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64 2023-08-11 11:53:48 +02:00
samples
scripts
security keys: Fix linking a duplicate key to a keyring's assoc_array 2023-08-11 11:53:47 +02:00
sound ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register 2023-08-11 11:53:53 +02:00
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README

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.