linux-kernel - [PATCH AUTOSEL 6.1 16/47] thermal: core: constify params in thermal_zone_device

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Message-Id: <20230813160006.1073695-16-sashal@kernel.org>
Date:   Sun, 13 Aug 2023 11:59:11 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ahmad Fatoum <a.fatoum@...gutronix.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Sasha Levin <sashal@...nel.org>, rafael@...nel.org,
        linux-pm@...r.kernel.org
Subject: [PATCH AUTOSEL 6.1 16/47] thermal: core: constify params in thermal_zone_device_register

From: Ahmad Fatoum <a.fatoum@...gutronix.de>

[ Upstream commit 80ddce5f2dbd0e83eadc9f9d373439180d599fe5 ]

Since commit 3d439b1a2ad3 ("thermal/core: Alloc-copy-free the thermal zone
parameters structure"), thermal_zone_device_register() allocates a copy
of the tzp argument and callers need not explicitly manage its lifetime.

This means the function no longer cares about the parameter being
mutable, so constify it.

No functional change.

Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/thermal/thermal_core.c | 4 ++--
 include/linux/thermal.h        | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 1eae4ec719a8f..2d5085488733e 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1178,7 +1178,7 @@ static void thermal_set_delay_jiffies(unsigned long *delay_jiffies, int delay_ms
 struct thermal_zone_device *
 thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *trips, int num_trips, int mask,
 					void *devdata, struct thermal_zone_device_ops *ops,
-					struct thermal_zone_params *tzp, int passive_delay,
+					const struct thermal_zone_params *tzp, int passive_delay,
 					int polling_delay)
 {
 	struct thermal_zone_device *tz;
@@ -1335,7 +1335,7 @@ EXPORT_SYMBOL_GPL(thermal_zone_device_register_with_trips);
 
 struct thermal_zone_device *thermal_zone_device_register(const char *type, int ntrips, int mask,
 							 void *devdata, struct thermal_zone_device_ops *ops,
-							 struct thermal_zone_params *tzp, int passive_delay,
+							 const struct thermal_zone_params *tzp, int passive_delay,
 							 int polling_delay)
 {
 	return thermal_zone_device_register_with_trips(type, NULL, ntrips, mask,
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 5e093602e8fcd..a339d3af9f9f4 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -337,14 +337,14 @@ static inline void devm_thermal_of_zone_unregister(struct device *dev,
 #ifdef CONFIG_THERMAL
 struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
 		void *, struct thermal_zone_device_ops *,
-		struct thermal_zone_params *, int, int);
+		const struct thermal_zone_params *, int, int);
 
 void thermal_zone_device_unregister(struct thermal_zone_device *);
 
 struct thermal_zone_device *
 thermal_zone_device_register_with_trips(const char *, struct thermal_trip *, int, int,
 					void *, struct thermal_zone_device_ops *,
-					struct thermal_zone_params *, int, int);
+					const struct thermal_zone_params *, int, int);
 
 int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
 				     struct thermal_cooling_device *,
@@ -378,7 +378,7 @@ void thermal_zone_device_critical(struct thermal_zone_device *tz);
 static inline struct thermal_zone_device *thermal_zone_device_register(
 	const char *type, int trips, int mask, void *devdata,
 	struct thermal_zone_device_ops *ops,
-	struct thermal_zone_params *tzp,
+	const struct thermal_zone_params *tzp,
 	int passive_delay, int polling_delay)
 { return ERR_PTR(-ENODEV); }
 static inline void thermal_zone_device_unregister(
-- 
2.40.1