PM: QoS: Drop the PM_QOS_SUM QoS type

The PM_QOS_SUM QoS type is not used, so drop it along with the code referring to it in pm_qos_get_value() and the related local variables in there. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <[email protected]> Reviewed-by: Ulf Hansson <[email protected]> Reviewed-by: Amit Kucheria <[email protected]> Tested-by: Amit Kucheria <[email protected]>
kmaincent · Feb 13, 2020 · 87ad735 · 87ad735
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diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
@@ -53,7 +53,6 @@ enum pm_qos_type {
 	PM_QOS_UNITIALIZED,
 	PM_QOS_MAX,		/* return the largest value */
 	PM_QOS_MIN,		/* return the smallest value */
-	PM_QOS_SUM		/* return the sum */
 };
 
 /*

diff --git a/kernel/power/qos.c b/kernel/power/qos.c
@@ -101,9 +101,6 @@ static const struct file_operations pm_qos_power_fops = {
 /* unlocked internal variant */
 static inline int pm_qos_get_value(struct pm_qos_constraints *c)
 {
-	struct plist_node *node;
-	int total_value = 0;
-
 	if (plist_head_empty(&c->list))
 		return c->no_constraint_value;
 
@@ -114,12 +111,6 @@ static inline int pm_qos_get_value(struct pm_qos_constraints *c)
 	case PM_QOS_MAX:
 		return plist_last(&c->list)->prio;
 
-	case PM_QOS_SUM:
-		plist_for_each(node, &c->list)
-			total_value += node->prio;
-
-		return total_value;
-
 	default:
 		/* runtime check for not using enum */
 		BUG();