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cpufreq: Drop unused symbol CPUFREQ_ETERNAL 

Drop CPUFREQ_ETERNAL that has no users any more along with all
references to it in the documentation.

No functional impact.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Jie Zhan <zhanjie9@hisilicon.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Qais Yousef <qyousef@layalina.io>
This commit is contained in:
Rafael J. Wysocki 2025-09-26 12:31:47 +02:00
parent c28a280bd4
commit 950c6451a5
5 changed files with 3 additions and 15 deletions
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4
Documentation/admin-guide/pm/cpufreq.rst
View File

@ -274,10 +274,6 @@ are the following:
The time it takes to switch the CPUs belonging to this policy from one
P-state to another, in nanoseconds.
If unknown or if known to be so high that the scaling driver does not
work with the `ondemand`_ governor, -1 (:c:macro:`CPUFREQ_ETERNAL`)
will be returned by reads from this attribute.
``related_cpus``
List of all (online and offline) CPUs belonging to this policy.

3
Documentation/cpu-freq/cpu-drivers.rst
View File

@ -109,8 +109,7 @@ Then, the driver must fill in the following values:
+-----------------------------------+--------------------------------------+
|policy->cpuinfo.transition_latency | the time it takes on this CPU to |
| | switch between two frequencies in |
| | nanoseconds (if appropriate, else |
| | specify CPUFREQ_ETERNAL) |
| | nanoseconds |
+-----------------------------------+--------------------------------------+
|policy->cur | The current operating frequency of |
| | this CPU (if appropriate) |

3
Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
View File

@ -112,8 +112,7 @@ CPUfreq核心层注册一个cpufreq_driver结构体。
| | |
+-----------------------------------+--------------------------------------+
|policy->cpuinfo.transition_latency | CPU在两个频率之间切换所需的时间，以 |
| | 纳秒为单位（如不适用，设定为 |
| | CPUFREQ_ETERNAL） |
| | 纳秒为单位 |
| | |
+-----------------------------------+--------------------------------------+
|policy->cur | 该CPU当前的工作频率(如适用) |

3
Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst
View File

@ -112,8 +112,7 @@ CPUfreq核心層註冊一個cpufreq_driver結構體。
| | |
+-----------------------------------+--------------------------------------+
|policy->cpuinfo.transition_latency | CPU在兩個頻率之間切換所需的時間，以 |
| | 納秒爲單位（如不適用，設定爲 |
| | CPUFREQ_ETERNAL） |
| | 納秒爲單位 |
| | |
+-----------------------------------+--------------------------------------+
|policy->cur | 該CPU當前的工作頻率(如適用) |

5
include/linux/cpufreq.h
View File

@ -26,13 +26,8 @@
*********************************************************************/
/*
* Frequency values here are CPU kHz
*
* Maximum transition latency is in nanoseconds - if it's unknown,
* CPUFREQ_ETERNAL shall be used.
*/
#define CPUFREQ_ETERNAL (-1)
#define CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS NSEC_PER_MSEC
#define CPUFREQ_NAME_LEN 16