From: Julia Lawall <julia@diku.dk>
To: hsweeten@visionengravers.com, ryan@bluewatersys.com,
linux-arm-kernel@lists.arm.linux.org.uk,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH 4/15] arch/arm/mach-ep93xx: Use DIV_ROUND_CLOSEST
Date: Sun, 2 Aug 2009 10:45:39 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.64.0908021045190.15557@ask.diku.dk> (raw)
From: Julia Lawall <julia@diku.dk>
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
#include <linux/kernel.h>
@depends on haskernel@
expression x,__divisor;
@@
- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
---
arch/arm/mach-ep93xx/core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 4075529..16b92c3 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -82,7 +82,7 @@ void __init ep93xx_map_io(void)
*/
static unsigned int last_jiffy_time;
-#define TIMER4_TICKS_PER_JIFFY ((CLOCK_TICK_RATE + (HZ/2)) / HZ)
+#define TIMER4_TICKS_PER_JIFFY DIV_ROUND_CLOSEST(CLOCK_TICK_RATE, HZ)
static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
{
next reply other threads:[~2009-08-02 8:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-02 8:45 Julia Lawall [this message]
2009-08-02 20:37 ` Ryan Mallon
2009-08-02 22:57 H Hartley Sweeten
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