linux-kernel - [PATCH 1/2] ACPI: processor_perflib: Simplify code and stop using CPUFREQ

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Date:   Thu,  5 Jan 2017 11:34:30 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>, Len Brown <lenb@...nel.org>
Cc:     linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-acpi@...r.kernel.org
Subject: [PATCH 1/2] ACPI: processor_perflib: Simplify code and stop using CPUFREQ_START

acpi_processor_ppc_notifier() can live without using CPUFREQ_START
(which is gonna be removed soon). Simplify it a bit.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
Rebased over: https://marc.info/?l=linux-kernel&m=148359167516831&w=2

 drivers/acpi/processor_perflib.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index f0b4a981b8d3..1ceea1143a1c 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -75,14 +75,12 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
 	struct acpi_processor *pr;
 	unsigned int ppc = 0;
 
-	if (event == CPUFREQ_START && ignore_ppc <= 0) {
-		ignore_ppc = 0;
-		return 0;
-	}
-
 	if (ignore_ppc)
 		return 0;
 
+	if (ignore_ppc < 0)
+		ignore_ppc = 0;
+
 	if (event != CPUFREQ_ADJUST)
 		return 0;
 
-- 
2.7.1.410.g6faf27b