PM / sleep: Print timing information if debug is enabled

Avoid printing the device suspend/resume timing information if
CONFIG_PM_DEBUG is not set to reduce the log noise level.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9faee1c893e53c8dea6e14d472a73a8b7131bf96..253f860e8981ef8bb3f7118661f8528bcdfc0a80 100644 (file)
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -417,6 +417,7 @@ static void pm_dev_err(struct device *dev, pm_message_t state, char *info,
                dev_name(dev), pm_verb(state.event), info, error);
 }
 
+#ifdef CONFIG_PM_DEBUG
 static void dpm_show_time(ktime_t starttime, pm_message_t state, char *info)
 {
        ktime_t calltime;
@@ -433,6 +434,9 @@ static void dpm_show_time(ktime_t starttime, pm_message_t state, char *info)
                info ?: "", info ? " " : "", pm_verb(state.event),
                usecs / USEC_PER_MSEC, usecs % USEC_PER_MSEC);
 }
+#else
+static inline void dpm_show_time(ktime_t starttime, pm_message_t state, char *info) {}
+#endif /* CONFIG_PM_DEBUG */
 
 static int dpm_run_callback(pm_callback_t cb, struct device *dev,
                            pm_message_t state, char *info)