cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events

No driver makes reference to these events now, remove them and the code related to them. Signed-off-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
EttusResearch · Sep 2, 2019 · df0eea4 · df0eea4
1 parent d15ce41
commit df0eea4
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Showing 2 changed files with 9 additions and 33 deletions.
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
@@ -2360,15 +2360,13 @@ EXPORT_SYMBOL(cpufreq_get_policy);
  * @policy: Policy object to modify.
  * @new_policy: New policy data.
  *
- * Pass @new_policy to the cpufreq driver's ->verify() callback, run the
- * installed policy notifiers for it with the CPUFREQ_ADJUST value, pass it to
- * the driver's ->verify() callback again and run the notifiers for it again
- * with the CPUFREQ_NOTIFY value.  Next, copy the min and max parameters
- * of @new_policy to @policy and either invoke the driver's ->setpolicy()
- * callback (if present) or carry out a governor update for @policy.  That is,
- * run the current governor's ->limits() callback (if the governor field in
- * @new_policy points to the same object as the one in @policy) or replace the
- * governor for @policy with the new one stored in @new_policy.
+ * Pass @new_policy to the cpufreq driver's ->verify() callback. Next, copy the
+ * min and max parameters of @new_policy to @policy and either invoke the
+ * driver's ->setpolicy() callback (if present) or carry out a governor update
+ * for @policy.  That is, run the current governor's ->limits() callback (if the
+ * governor field in @new_policy points to the same object as the one in
+ * @policy) or replace the governor for @policy with the new one stored in
+ * @new_policy.
  *
  * The cpuinfo part of @policy is not updated by this function.
  */
@@ -2396,26 +2394,6 @@ int cpufreq_set_policy(struct cpufreq_policy *policy,
 	if (ret)
 		return ret;
 
-	/*
-	 * The notifier-chain shall be removed once all the users of
-	 * CPUFREQ_ADJUST are moved to use the QoS framework.
-	 */
-	/* adjust if necessary - all reasons */
-	blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
-			CPUFREQ_ADJUST, new_policy);
-
-	/*
-	 * verify the cpu speed can be set within this limit, which might be
-	 * different to the first one
-	 */
-	ret = cpufreq_driver->verify(new_policy);
-	if (ret)
-		return ret;
-
-	/* notification of the new policy */
-	blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
-			CPUFREQ_NOTIFY, new_policy);
-
 	policy->min = new_policy->min;
 	policy->max = new_policy->max;
 	trace_cpu_frequency_limits(policy);

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
@@ -456,10 +456,8 @@ static inline void cpufreq_resume(void) {}
 #define CPUFREQ_POSTCHANGE		(1)
 
 /* Policy Notifiers  */
-#define CPUFREQ_ADJUST			(0)
-#define CPUFREQ_NOTIFY			(1)
-#define CPUFREQ_CREATE_POLICY		(2)
-#define CPUFREQ_REMOVE_POLICY		(3)
+#define CPUFREQ_CREATE_POLICY		(0)
+#define CPUFREQ_REMOVE_POLICY		(1)
 
 #ifdef CONFIG_CPU_FREQ
 int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);