[1/2] cpuidle: governors: Drop redundant checks related to PM QoS
diff mbox

Message ID 2392049.LpkvHV6nCY@aspire.rjw.lan
State Mainlined
Delegated to: Rafael Wysocki
Headers show

Commit Message

Rafael J. Wysocki May 30, 2018, 11:41 a.m. UTC
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

PM_QOS_RESUME_LATENCY_NO_CONSTRAINT is defined as the 32-bit integer
maximum, so it is not necessary to test the return value of
dev_pm_qos_raw_read_value() against it directly in the menu and
ladder cpuidle governors.

Drop these redundant checks.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/governors/ladder.c |    3 +--
 drivers/cpuidle/governors/menu.c   |    3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

Patch
diff mbox

Index: linux-pm/drivers/cpuidle/governors/ladder.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/governors/ladder.c
+++ linux-pm/drivers/cpuidle/governors/ladder.c
@@ -76,8 +76,7 @@  static int ladder_select_state(struct cp
 	int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
 	int resume_latency = dev_pm_qos_raw_read_value(device);
 
-	if (resume_latency < latency_req &&
-	    resume_latency != PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
+	if (resume_latency < latency_req)
 		latency_req = resume_latency;
 
 	/* Special case when user has set very strict latency requirement */
Index: linux-pm/drivers/cpuidle/governors/menu.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/governors/menu.c
+++ linux-pm/drivers/cpuidle/governors/menu.c
@@ -304,8 +304,7 @@  static int menu_select(struct cpuidle_dr
 		data->needs_update = 0;
 	}
 
-	if (resume_latency < latency_req &&
-	    resume_latency != PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
+	if (resume_latency < latency_req)
 		latency_req = resume_latency;
 
 	/* Special case when user has set very strict latency requirement */