Messages in this thread Patch in this message |  | | Date | Sun, 2 Aug 2009 10:46:05 +0200 (CEST) | From | Julia Lawall <> | Subject | [PATCH 5/15] arch/arm/mach-ixp2000: Use DIV_ROUND_CLOSEST |
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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-ixp2000/core.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c index babb225..037342b 100644 --- a/arch/arm/mach-ixp2000/core.c +++ b/arch/arm/mach-ixp2000/core.c @@ -219,7 +219,7 @@ static struct irqaction ixp2000_timer_irq = { void __init ixp2000_init_time(unsigned long tick_rate) { - ticks_per_jiffy = (tick_rate + HZ/2) / HZ; + ticks_per_jiffy = DIV_ROUND_CLOSEST(tick_rate, HZ); ticks_per_usec = tick_rate / 1000000; /*
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