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From: <y@shlinux1.ap.freescale.net>
To: <linux-kernel@vger.kernel.org>
CC: <davem@davemloft.net>, <dborkman@redhat.com>, <tglx@linutronix.de>,
        <john.stultz@linaro.org>, <liu.y.victor@gmail.com>,
        Liu Ying <Ying.Liu@freescale.com>
Subject: [PATCH 1/1] ktime: Use macro NSEC_PER_USEC instead of a magic number
Date: Mon, 6 May 2013 20:42:15 +0800
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From: Liu Ying <Ying.Liu@freescale.com>

We've got the macro NSEC_PER_USEC defined in header file
include/linux/time.h. To make the code decent, this patch
replaces the magic number 1000 to convert bewteen a time
value in microseconds and one in nanoseconds with the
macro NSEC_PER_USEC.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
---
 include/linux/ktime.h |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index bbca128..5de963d 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -229,7 +229,8 @@ static inline ktime_t timespec_to_ktime(const struct timespec ts)
 static inline ktime_t timeval_to_ktime(const struct timeval tv)
 {
 	return (ktime_t) { .tv = { .sec = (s32)tv.tv_sec,
-				   .nsec = (s32)tv.tv_usec * 1000 } };
+				   .nsec = (s32)tv.tv_usec *
+					   (s32)NSEC_PER_USEC} };
 }
 
 /**
@@ -320,12 +321,12 @@ static inline s64 ktime_us_delta(const ktime_t later, const ktime_t earlier)
 
 static inline ktime_t ktime_add_us(const ktime_t kt, const u64 usec)
 {
-	return ktime_add_ns(kt, usec * 1000);
+	return ktime_add_ns(kt, usec * NSEC_PER_USEC);
 }
 
 static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
 {
-	return ktime_sub_ns(kt, usec * 1000);
+	return ktime_sub_ns(kt, usec * NSEC_PER_USEC);
 }
 
 extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs);
-- 
1.7.1


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