From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Drop CPUFREQ_ETERNAL that has no users any more along with all
references to it in the documentation.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Documentation/admin-guide/pm/cpufreq.rst | 4 ----
Documentation/cpu-freq/cpu-drivers.rst | 3 +--
Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst | 3 +--
Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst | 3 +--
include/linux/cpufreq.h | 5 -----
5 files changed, 3 insertions(+), 15 deletions(-)
--- 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.
--- 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 follow
+-----------------------------------+--------------------------------------+
|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) |
--- 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_driv
| | |
+-----------------------------------+--------------------------------------+
|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) |
--- 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_driv
| | |
+-----------------------------------+--------------------------------------+
|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) |
--- 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_TANSITION_LATENCY_NS NSEC_PER_MSEC
#define CPUFREQ_NAME_LEN 16On 9/25/2025 11:47 PM, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > Drop CPUFREQ_ETERNAL that has no users any more along with all > references to it in the documentation. > > No functional impact. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Jie Zhan <zhanjie9@hisilicon.com> > --- > Documentation/admin-guide/pm/cpufreq.rst | 4 ---- > Documentation/cpu-freq/cpu-drivers.rst | 3 +-- > Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst | 3 +-- > Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst | 3 +-- > include/linux/cpufreq.h | 5 ----- > 5 files changed, 3 insertions(+), 15 deletions(-)
On 9/25/2025 10:47 AM, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > Drop CPUFREQ_ETERNAL that has no users any more along with all > references to it in the documentation. > > No functional impact. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>> --- > Documentation/admin-guide/pm/cpufreq.rst | 4 ---- > Documentation/cpu-freq/cpu-drivers.rst | 3 +-- > Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst | 3 +-- > Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst | 3 +-- > include/linux/cpufreq.h | 5 ----- > 5 files changed, 3 insertions(+), 15 deletions(-) > > --- 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. > > --- 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 follow > +-----------------------------------+--------------------------------------+ > |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) | > --- 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_driv > | | | > +-----------------------------------+--------------------------------------+ > |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) | > --- 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_driv > | | | > +-----------------------------------+--------------------------------------+ > |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) | > --- 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_TANSITION_LATENCY_NS NSEC_PER_MSEC > > #define CPUFREQ_NAME_LEN 16 > > >
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