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authorDaniel Lezcano <daniel.lezcano@linaro.org>2019-04-02 18:12:50 +0200
committerZhang Rui <rui.zhang@intel.com>2019-05-06 20:35:24 +0800
commitf37353320ee9905ef7aaba4c67eae85496bee950 (patch)
tree0044c8794bca5822c0d8ccec4efffdabd51e5807 /drivers/hwmon/hwmon.c
parent2e31c8560a564a70f13e3b6acab49bffbe41e965 (diff)
downloadlinux-f37353320ee9905ef7aaba4c67eae85496bee950.tar.gz
hwmon/drivers/core: Simplify complex dependency
As the thermal framework does not longer compile as a module, we can
simplify this condition below:

 if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF) && \
       (!defined(CONFIG_THERMAL_HWMON) || \
        !(defined(MODULE) && IS_MODULE(CONFIG_THERMAL)))

 if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF) && \
       (!defined(CONFIG_THERMAL_HWMON) || \
        !(defined(MODULE) && 0))

=> (whatever && 0) = 0

 if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF) && \
       (!defined(CONFIG_THERMAL_HWMON) || !(0))

 if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF) && \
       (!defined(CONFIG_THERMAL_HWMON) || 1)

=> (whatever || 1) = 1

 if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF) && \
       (1)

=> (whatever && 1) = whatever

 if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF)

CONFIG_THERMAL can not be a module anymore, then:

 if defined(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF)

And CONFIG_THERMAL_OF already depends on CONFIG_THERMAL, so:

 if defined(CONFIG_THERMAL_OF)

Thus,

 ifdef CONFIG_THERMAL_OF

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/hwmon/hwmon.c')
-rw-r--r--drivers/hwmon/hwmon.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index c22dc1e07911..6f76f2484db0 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -118,9 +118,7 @@ static DEFINE_IDA(hwmon_ida);
  * The complex conditional is necessary to avoid a cyclic dependency
  * between hwmon and thermal_sys modules.
  */
-#if IS_REACHABLE(CONFIG_THERMAL) && defined(CONFIG_THERMAL_OF) && \
-	(!defined(CONFIG_THERMAL_HWMON) || \
-	 !(defined(MODULE) && IS_MODULE(CONFIG_THERMAL)))
+#ifdef CONFIG_THERMAL_OF
 static int hwmon_thermal_get_temp(void *data, int *temp)
 {
 	struct hwmon_thermal_data *tdata = data;