linux-kernel - [PATCH 2/2] thermal/core: Remove unused EXPORT

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Message-Id: <20210422113457.51578-2-daniel.lezcano@linaro.org>
Date:   Thu, 22 Apr 2021 13:34:56 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     daniel.lezcano@...aro.org
Cc:     Jonathan Corbet <corbet@....net>, Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amitk@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Thara Gopinath <thara.gopinath@...aro.org>,
        Flavio Suligoi <f.suligoi@...m.it>,
        linux-doc@...r.kernel.org (open list:DOCUMENTATION),
        linux-kernel@...r.kernel.org (open list),
        linux-pm@...r.kernel.org (open list:THERMAL)
Subject: [PATCH 2/2] thermal/core: Remove unused EXPORT_SYMBOLS

The functions exported in the thermal_helpers.c file are only used by
the governors and those are not compilable as module.

Remove the EXPORT_SYMBOL as no module code needs them.

Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 .../driver-api/thermal/sysfs-api.rst          | 28 +------------------
 drivers/thermal/thermal_helpers.c             |  3 --
 2 files changed, 1 insertion(+), 30 deletions(-)

diff --git a/Documentation/driver-api/thermal/sysfs-api.rst b/Documentation/driver-api/thermal/sysfs-api.rst
index 4b638c14bc16..c35266bbc119 100644
--- a/Documentation/driver-api/thermal/sysfs-api.rst
+++ b/Documentation/driver-api/thermal/sysfs-api.rst
@@ -711,33 +711,7 @@ method, the sys I/F structure will be built like this::
     |---temp1_input:		37000
     |---temp1_crit:		100000
 
-4. Export Symbol APIs
-=====================
-
-4.1. get_tz_trend
------------------
-
-This function returns the trend of a thermal zone, i.e the rate of change
-of temperature of the thermal zone. Ideally, the thermal sensor drivers
-are supposed to implement the callback. If they don't, the thermal
-framework calculated the trend by comparing the previous and the current
-temperature values.
-
-4.2. get_thermal_instance
--------------------------
-
-This function returns the thermal_instance corresponding to a given
-{thermal_zone, cooling_device, trip_point} combination. Returns NULL
-if such an instance does not exist.
-
-4.3. thermal_cdev_update
-------------------------
-
-This function serves as an arbitrator to set the state of a cooling
-device. It sets the cooling device to the deepest cooling state if
-possible.
-
-5. thermal_emergency_poweroff
+4. thermal_emergency_poweroff
 =============================
 
 On an event of critical trip temperature crossing. Thermal framework
diff --git a/drivers/thermal/thermal_helpers.c b/drivers/thermal/thermal_helpers.c
index 7f50f412e02a..0ecf2c66aa76 100644
--- a/drivers/thermal/thermal_helpers.c
+++ b/drivers/thermal/thermal_helpers.c
@@ -39,7 +39,6 @@ int get_tz_trend(struct thermal_zone_device *tz, int trip)
 
 	return trend;
 }
-EXPORT_SYMBOL(get_tz_trend);
 
 struct thermal_instance *
 get_thermal_instance(struct thermal_zone_device *tz,
@@ -63,7 +62,6 @@ get_thermal_instance(struct thermal_zone_device *tz,
 
 	return target_instance;
 }
-EXPORT_SYMBOL(get_thermal_instance);
 
 /**
  * thermal_zone_get_temp() - returns the temperature of a thermal zone
@@ -221,7 +219,6 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev)
 	trace_cdev_update(cdev, target);
 	dev_dbg(&cdev->device, "set to state %lu\n", target);
 }
-EXPORT_SYMBOL(thermal_cdev_update);
 
 /**
  * thermal_zone_get_slope - return the slope attribute of the thermal zone
-- 
2.25.1