diff options
| author | Julia Lawall <julia@diku.dk> | 2009-08-02 10:47:27 +0200 |
|---|---|---|
| committer | Hirokazu Takata <takata@linux-m32r.org> | 2009-11-04 00:31:50 +0100 |
| commit | 560235857fb79da48d36e8f866a0ee3b10a232bf (patch) | |
| tree | 5635f5ec3fca87f35caf0ef0bff7fdbc21782ff1 | |
| parent | Linux 2.6.32-rc6 (diff) | |
| download | linux-560235857fb79da48d36e8f866a0ee3b10a232bf.tar.xz linux-560235857fb79da48d36e8f866a0ee3b10a232bf.zip | |
arch/m32r: Use DIV_ROUND_CLOSEST
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@
@@
@depends on haskernel@
expression x,__divisor;
@@
- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
| -rw-r--r-- | arch/m32r/kernel/time.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c index e7fee0f198d5..9cedcef11575 100644 --- a/arch/m32r/kernel/time.c +++ b/arch/m32r/kernel/time.c @@ -75,7 +75,7 @@ u32 arch_gettimeoffset(void) count = 0; count = (latch - count) * TICK_SIZE; - elapsed_time = (count + latch / 2) / latch; + elapsed_time = DIV_ROUND_CLOSEST(count, latch); /* NOTE: LATCH is equal to the "interval" value (= reload count). */ #else /* CONFIG_SMP */ @@ -93,7 +93,7 @@ u32 arch_gettimeoffset(void) p_count = count; count = (latch - count) * TICK_SIZE; - elapsed_time = (count + latch / 2) / latch; + elapsed_time = DIV_ROUND_CLOSEST(count, latch); /* NOTE: LATCH is equal to the "interval" value (= reload count). */ #endif /* CONFIG_SMP */ #elif defined(CONFIG_CHIP_M32310) @@ -211,7 +211,7 @@ void __init time_init(void) bus_clock = boot_cpu_data.bus_clock; divide = boot_cpu_data.timer_divide; - latch = (bus_clock/divide + HZ / 2) / HZ; + latch = DIV_ROUND_CLOSEST(bus_clock/divide, HZ); printk("Timer start : latch = %ld\n", latch); |