linux-kernel - [PATCH V4 4/4] cpufreq: Remove stop

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Date:   Wed, 23 Jun 2021 09:54:42 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Jonathan Corbet <corbet@....net>, Alex Shi <alexs@...nel.org>
Cc:     linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V4 4/4] cpufreq: Remove stop_cpu() callback

Now that all users of stop_cpu() are migrated to use other callbacks,
lets remove its support from the core.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 Documentation/cpu-freq/cpu-drivers.rst                    | 3 ---
 Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst | 3 ---
 drivers/cpufreq/cpufreq.c                                 | 3 ---
 include/linux/cpufreq.h                                   | 1 -
 4 files changed, 10 deletions(-)

diff --git a/Documentation/cpu-freq/cpu-drivers.rst b/Documentation/cpu-freq/cpu-drivers.rst
index a697278ce190..74fac797c396 100644
--- a/Documentation/cpu-freq/cpu-drivers.rst
+++ b/Documentation/cpu-freq/cpu-drivers.rst
@@ -71,9 +71,6 @@ And optionally
  .exit - A pointer to a per-policy cleanup function called during
  CPU_POST_DEAD phase of cpu hotplug process.
 
- .stop_cpu - A pointer to a per-policy stop function called during
- CPU_DOWN_PREPARE phase of cpu hotplug process.
-
  .suspend - A pointer to a per-policy suspend function which is called
  with interrupts disabled and _after_ the governor is stopped for the
  policy.
diff --git a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
index 0ca2cb646666..9570e9c9e939 100644
--- a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
+++ b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
@@ -76,9 +76,6 @@ 并且可选择
  .exit - 一个指向per-policy清理函数的指针，该函数在cpu热插拔过程的CPU_POST_DEAD
  阶段被调用。
 
- .stop_cpu - 一个指向per-policy停止函数的指针，该函数在cpu热插拔过程的CPU_DOWN_PREPARE
- 阶段被调用。
-
  .suspend - 一个指向per-policy暂停函数的指针，该函数在关中断且在该策略的调节器停止
  后被调用。
 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index cbab834c37a0..5e4b5316d254 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1606,9 +1606,6 @@ static int cpufreq_offline(unsigned int cpu)
 		policy->cdev = NULL;
 	}
 
-	if (cpufreq_driver->stop_cpu)
-		cpufreq_driver->stop_cpu(policy);
-
 	if (has_target())
 		cpufreq_exit_governor(policy);
 
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 353969c7acd3..2e2267a36502 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -371,7 +371,6 @@ struct cpufreq_driver {
 	int		(*online)(struct cpufreq_policy *policy);
 	int		(*offline)(struct cpufreq_policy *policy);
 	int		(*exit)(struct cpufreq_policy *policy);
-	void		(*stop_cpu)(struct cpufreq_policy *policy);
 	int		(*suspend)(struct cpufreq_policy *policy);
 	int		(*resume)(struct cpufreq_policy *policy);
 
-- 
2.31.1.272.g89b43f80a514