linux-kernel - [PATCH 3.16.y-ckt 065/104] cpufreq: intel_pstate: Remove unnecessary type casting in div

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Date:	Mon, 26 Oct 2015 13:42:47 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Stratos Karafotis <stratosk@...aphore.gr>,
	Dirk Brandewie <dirk.j.brandewie@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 065/104] cpufreq: intel_pstate: Remove unnecessary type casting in div_s64() call

3.16.7-ckt19 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stratos Karafotis <stratosk@...aphore.gr>

commit fa30dff9a81ea9fdc2e985a14fe14ce6393a3214 upstream.

div_s64() accepts the divisor parameter as s32. Helper div_fp()
also accepts divisor as int32_t.

So, remove the unnecessary int64_t type casting.

Signed-off-by: Stratos Karafotis <stratosk@...aphore.gr>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@...el.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/cpufreq/intel_pstate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 0a91eea08198..08f653669a52 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -50,7 +50,7 @@ static inline int32_t mul_fp(int32_t x, int32_t y)
 
 static inline int32_t div_fp(int32_t x, int32_t y)
 {
-	return div_s64((int64_t)x << FRAC_BITS, (int64_t)y);
+	return div_s64((int64_t)x << FRAC_BITS, y);
 }
 
 static inline int ceiling_fp(int32_t x)
--
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