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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2025-09-26 12:31:47 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2025-10-01 13:57:22 +0200
commit950c6451a5c38d375993c3b9da427e2e69b01c30 (patch)
tree8b8fbeef9719b4211cf2295dc51562edea39252a
parentc28a280bd465690981099cd6e43dfcfa5c28b133 (diff)
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>
-rw-r--r--Documentation/admin-guide/pm/cpufreq.rst4
-rw-r--r--Documentation/cpu-freq/cpu-drivers.rst3
-rw-r--r--Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst3
-rw-r--r--Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst3
-rw-r--r--include/linux/cpufreq.h5
5 files changed, 3 insertions, 15 deletions
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst
index cacb9f0307dd..738d7b4dc33a 100644
--- a/Documentation/admin-guide/pm/cpufreq.rst
+++ b/Documentation/admin-guide/pm/cpufreq.rst
@@ -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.
diff --git a/Documentation/cpu-freq/cpu-drivers.rst b/Documentation/cpu-freq/cpu-drivers.rst
index d84ededb66f9..c5635ac3de54 100644
--- a/Documentation/cpu-freq/cpu-drivers.rst
+++ b/Documentation/cpu-freq/cpu-drivers.rst
@@ -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) |
diff --git a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
index 2ca92042767b..8238f4c6e4f5 100644
--- a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
+++ b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
@@ -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) |
diff --git a/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst b/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst
index add3de2d4523..5435c3928d4b 100644
--- a/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst
+++ b/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst
@@ -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) |
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index bc8c083bc16a..0465d1e6f72a 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -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