[PATCH 5/6] PM / sleep: Print timing information if debug is enabled

["Rafael J. Wysocki" <rjw@rjwysocki.net>]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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>
---
 drivers/base/power/main.c |    4 ++++
 1 file changed, 4 insertions(+)

Index: linux-pm/drivers/base/power/main.c
===================================================================
--- linux-pm.orig/drivers/base/power/main.c
+++ linux-pm/drivers/base/power/main.c
@@ -417,6 +417,7 @@ static void pm_dev_err(struct device *de
 		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 startt
 		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)