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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-06-06 20:27:30 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-06-07 13:52:17 +0200 |
| commit | 7f18bd49cb6b6a3ab6d860fefccdc94f2a247db0 (patch) | |
| tree | 6b122b1758b1758306f0ba01055285d2a4658dd8 /net/unix/af_unix.c | |
| parent | 1af89dedc8a58006d8e385b1e0d2cd24df8a3b69 (diff) | |
thermal: ACPI: Invalidate trip points with temperature of 0 or below
It is reported that commit 950210887670 ("thermal: core: Drop
trips_disabled bitmask") causes the maximum frequency of CPUs to drop
further down with every system sleep-wake cycle on Intel Core i7-4710HQ.
This turns out to be due to a trip point whose temperature is equal to 0
degrees Celsius which is acted on every time the system wakes from sleep.
Before commit 950210887670 this trip point would be disabled wia the
trips_disabled bitmask, but now it is treated as a valid one.
Since ACPI thermal control is generally about protection against
overheating, trip points with temperature of 0 centigrade or below are
not particularly useful there, so initialize them all as invalid which
fixes the problem at hand.
Fixes: 950210887670 ("thermal: core: Drop trips_disabled bitmask")
Closes: https://lore.kernel.org/linux-pm/3f71747b-f852-4ee0-b384-cf46b2aefa3f@gmx.com
Reported-by: Tibor Billes <tbilles@gmx.com>
Tested-by: Tibor Billes <tbilles@gmx.com>
Cc: 6.7+ <stable@vger.kernel.org> # 6.7+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions