From: Yaxiong Tian Date: Tue, 30 Dec 2025 06:15:34 +0000 (+0800) Subject: PM: EM: Fix incorrect description of the cost field in struct em_perf_state X-Git-Tag: v6.19-rc6~23^2^2~5 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54b603f2db6b95495bc33a8f2bde80f044baff9a;p=thirdparty%2Flinux.git PM: EM: Fix incorrect description of the cost field in struct em_perf_state Due to commit 1b600da51073 ("PM: EM: Optimize em_cpu_energy() and remove division"), the logic for energy consumption calculation has been modified. The actual calculation of cost is 10 * power * max_frequency / frequency instead of power * max_frequency / frequency. Therefore, the comment for cost has been updated to reflect the correct content. Fixes: 1b600da51073 ("PM: EM: Optimize em_cpu_energy() and remove division") Signed-off-by: Yaxiong Tian Reviewed-by: Lukasz Luba [ rjw: Added Fixes: tag ] Link: https://patch.msgid.link/20251230061534.816894-1-tianyaxiong@kylinos.cn Signed-off-by: Rafael J. Wysocki --- diff --git a/include/linux/energy_model.h b/include/linux/energy_model.h index 43aa6153dc57..e7497f804644 100644 --- a/include/linux/energy_model.h +++ b/include/linux/energy_model.h @@ -18,7 +18,7 @@ * @power: The power consumed at this level (by 1 CPU or by a registered * device). It can be a total power: static and dynamic. * @cost: The cost coefficient associated with this level, used during - * energy calculation. Equal to: power * max_frequency / frequency + * energy calculation. Equal to: 10 * power * max_frequency / frequency * @flags: see "em_perf_state flags" description below. */ struct em_perf_state {