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authorJulia Lawall <julia@diku.dk>2009-08-02 04:47:27 -0400
committerHirokazu Takata <takata@linux-m32r.org>2009-11-03 18:31:50 -0500
commit560235857fb79da48d36e8f866a0ee3b10a232bf (patch)
tree5635f5ec3fca87f35caf0ef0bff7fdbc21782ff1 /arch/m32r/kernel
parentb419148e567728f6af0c3b01965c1cc141e3e13a (diff)
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>
Diffstat (limited to 'arch/m32r/kernel')
-rw-r--r--arch/m32r/kernel/time.c6
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)
75 count = 0; 75 count = 0;
76 76
77 count = (latch - count) * TICK_SIZE; 77 count = (latch - count) * TICK_SIZE;
78 elapsed_time = (count + latch / 2) / latch; 78 elapsed_time = DIV_ROUND_CLOSEST(count, latch);
79 /* NOTE: LATCH is equal to the "interval" value (= reload count). */ 79 /* NOTE: LATCH is equal to the "interval" value (= reload count). */
80 80
81#else /* CONFIG_SMP */ 81#else /* CONFIG_SMP */
@@ -93,7 +93,7 @@ u32 arch_gettimeoffset(void)
93 p_count = count; 93 p_count = count;
94 94
95 count = (latch - count) * TICK_SIZE; 95 count = (latch - count) * TICK_SIZE;
96 elapsed_time = (count + latch / 2) / latch; 96 elapsed_time = DIV_ROUND_CLOSEST(count, latch);
97 /* NOTE: LATCH is equal to the "interval" value (= reload count). */ 97 /* NOTE: LATCH is equal to the "interval" value (= reload count). */
98#endif /* CONFIG_SMP */ 98#endif /* CONFIG_SMP */
99#elif defined(CONFIG_CHIP_M32310) 99#elif defined(CONFIG_CHIP_M32310)
@@ -211,7 +211,7 @@ void __init time_init(void)
211 211
212 bus_clock = boot_cpu_data.bus_clock; 212 bus_clock = boot_cpu_data.bus_clock;
213 divide = boot_cpu_data.timer_divide; 213 divide = boot_cpu_data.timer_divide;
214 latch = (bus_clock/divide + HZ / 2) / HZ; 214 latch = DIV_ROUND_CLOSEST(bus_clock/divide, HZ);
215 215
216 printk("Timer start : latch = %ld\n", latch); 216 printk("Timer start : latch = %ld\n", latch);
217 217