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Rafael J. Wysocki 8c69a777e4 thermal: core: Fix the handling of invalid trip points 
Commit 9ad18043fb ("thermal: core: Send trip crossing notifications
at init time if needed") overlooked the case when a trip point that
has started as invalid is set to a valid temperature later.  Namely,
the initial threshold value for all trips is zero, so if a previously
invalid trip becomes valid and its (new) low temperature is above the
zone temperature, a spurious trip crossing notification will occur and
it may trigger the WARN_ON() in handle_thermal_trip().

To address this, set the initial threshold for all trips to INT_MAX.

There is also the case when a valid writable trip becomes invalid that
requires special handling.  First, in accordance with the change
mentioned above, the trip's threshold needs to be set to INT_MAX to
avoid the same issue.  Second, if the trip in question is passive and
it has been crossed by the thermal zone temperature on the way up, the
zone's passive count has been incremented and it is in the passive
polling mode, so its passive count needs to be adjusted to allow the
passive polling to be turned off eventually.

Fixes: 9ad18043fb ("thermal: core: Send trip crossing notifications at init time if needed")
Fixes: 042a3d80f1 ("thermal: core: Move passive polling management to the core")
Reported-by: Zhang Rui <zhang.rui@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Wendy Wang <wendy.wang@intel.com>
History 2024-05-17 12:37:33 +02:00
arch OpenRISC updates for 6.10 2024-05-14 11:27:32 -07:00
block for-6.10/block-20240511 2024-05-13 13:03:54 -07:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto This update includes the following changes: 2024-05-13 14:53:05 -07:00
Documentation Thermal control updates for 6.10-rc1 2024-05-14 12:53:26 -07:00
drivers thermal: core: Fix the handling of invalid trip points 2024-05-17 12:37:33 +02:00
fs hardening updates for 6.10-rc1 2024-05-13 14:14:05 -07:00
include Thermal control updates for 6.10-rc1 2024-05-14 12:53:26 -07:00
init Scheduler changes for v6.10: 2024-05-13 17:18:51 -07:00
io_uring for-6.10/io_uring-20240511 2024-05-13 12:48:06 -07:00
ipc fs: Add FOP_HUGE_PAGES 2024-04-09 10:53:44 +02:00
kernel linux_kselftest-kunit-6.10-rc1 2024-05-14 11:32:52 -07:00
lib linux_kselftest-kunit-6.10-rc1 2024-05-14 11:32:52 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm for-6.10/io_uring-20240511 2024-05-13 12:48:06 -07:00
net for-6.10/io_uring-20240511 2024-05-13 12:48:06 -07:00
rust Timers and timekeeping updates: 2024-05-14 09:27:40 -07:00
samples rust: sync: update Arc and UniqueArc to take allocation flags 2024-04-16 22:50:04 +02:00
scripts arm64 updates for 6.10 2024-05-14 11:09:39 -07:00
security Hi 2024-05-13 10:48:35 -07:00
sound ALSA: hda/realtek: Fix build error without CONFIG_PM 2024-05-02 08:25:06 +02:00
tools linux_kselftest-next-6.10-rc1 2024-05-14 11:36:54 -07:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start() 2024-04-11 12:58:53 -07:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap Another not-too-busy cycle for documentation, including: 2024-05-13 10:51:53 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer 2024-03-27 13:41:02 -05:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS arm64 updates for 6.10 2024-05-14 11:09:39 -07:00
Makefile Linux 6.9 2024-05-12 14:12:29 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.