linux-kernel - [PATCH 01/17] PM: EM: Refactor em_cpufreq_update

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Message-Id: <20230314103357.26010-2-lukasz.luba@arm.com>
Date:   Tue, 14 Mar 2023 10:33:41 +0000
From:   Lukasz Luba <lukasz.luba@....com>
To:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        rafael@...nel.org
Cc:     lukasz.luba@....com, dietmar.eggemann@....com, rui.zhang@...el.com,
        amit.kucheria@...durent.com, amit.kachhap@...il.com,
        daniel.lezcano@...aro.org, viresh.kumar@...aro.org,
        len.brown@...el.com, pavel@....cz, Pierre.Gondois@....com,
        ionela.voinescu@....com, rostedt@...dmis.org, mhiramat@...nel.org
Subject: [PATCH 01/17] PM: EM: Refactor em_cpufreq_update_efficiencies() arguments

In order to prepare the code for the modifiable EM perf_state table,
refactor existing function em_cpufreq_update_efficiencies().

Signed-off-by: Lukasz Luba <lukasz.luba@....com>
---
 kernel/power/energy_model.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
index f82111837b8d..265d51a948d4 100644
--- a/kernel/power/energy_model.c
+++ b/kernel/power/energy_model.c
@@ -240,10 +240,10 @@ static int em_create_pd(struct device *dev, int nr_states,
 	return 0;
 }
 
-static void em_cpufreq_update_efficiencies(struct device *dev)
+static void
+em_cpufreq_update_efficiencies(struct device *dev, struct em_perf_state *table)
 {
 	struct em_perf_domain *pd = dev->em_pd;
-	struct em_perf_state *table;
 	struct cpufreq_policy *policy;
 	int found = 0;
 	int i;
@@ -257,8 +257,6 @@ static void em_cpufreq_update_efficiencies(struct device *dev)
 		return;
 	}
 
-	table = pd->table;
-
 	for (i = 0; i < pd->nr_perf_states; i++) {
 		if (!(table[i].flags & EM_PERF_STATE_INEFFICIENT))
 			continue;
@@ -400,7 +398,7 @@ int em_dev_register_perf_domain(struct device *dev, unsigned int nr_states,
 
 	dev->em_pd->flags |= flags;
 
-	em_cpufreq_update_efficiencies(dev);
+	em_cpufreq_update_efficiencies(dev, dev->em_pd->table);
 
 	em_debug_create_pd(dev);
 	dev_info(dev, "EM: created perf domain\n");
-- 
2.17.1