Messages in this thread Patch in this message | | | Date | Sun, 2 Aug 2009 10:45:39 +0200 (CEST) | From | Julia Lawall <> | Subject | [PATCH 4/15] arch/arm/mach-ep93xx: 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-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) {
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