power: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Greg KH <greg@kroah.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 03d6a38..138dd76 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -39,7 +39,7 @@
 	struct power_supply *psy = container_of(work, struct power_supply,
 						changed_work);
 
-	dev_dbg(psy->dev, "%s\n", __FUNCTION__);
+	dev_dbg(psy->dev, "%s\n", __func__);
 
 	class_for_each_device(power_supply_class, psy,
 			      __power_supply_changed_work);
@@ -51,7 +51,7 @@
 
 void power_supply_changed(struct power_supply *psy)
 {
-	dev_dbg(psy->dev, "%s\n", __FUNCTION__);
+	dev_dbg(psy->dev, "%s\n", __func__);
 
 	schedule_work(&psy->changed_work);
 }
@@ -82,7 +82,7 @@
 	error = class_for_each_device(power_supply_class, psy,
 				      __power_supply_am_i_supplied);
 
-	dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, error);
+	dev_dbg(psy->dev, "%s %d\n", __func__, error);
 
 	return error;
 }