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x86: cleanup div_sc() usage

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Remove the magic number in the third argment of div_sc().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Akinobu Mita 2008-04-19 23:55:16 +09:00 committed by Ingo Molnar
parent d454157b11
commit 877084fb1c
5 changed files with 9 additions and 5 deletions
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3
arch/x86/kernel/apic_32.c
View file

@ -451,7 +451,8 @@ void __init setup_boot_APIC_clock(void)
}
/* Calculate the scaled math multiplication factor */
lapic_clockevent.mult = div_sc(delta, TICK_NSEC * LAPIC_CAL_LOOPS, 32);
lapic_clockevent.mult = div_sc(delta, TICK_NSEC * LAPIC_CAL_LOOPS,
lapic_clockevent.shift);
lapic_clockevent.max_delta_ns =
clockevent_delta2ns(0x7FFFFF, &lapic_clockevent);
lapic_clockevent.min_delta_ns =

3
arch/x86/kernel/apic_64.c
View file

@ -360,7 +360,8 @@ static void __init calibrate_APIC_clock(void)
result / 1000 / 1000, result / 1000 % 1000);
/* Calculate the scaled math multiplication factor */
lapic_clockevent.mult = div_sc(result, NSEC_PER_SEC, 32);
lapic_clockevent.mult = div_sc(result, NSEC_PER_SEC,
lapic_clockevent.shift);
lapic_clockevent.max_delta_ns =
clockevent_delta2ns(0x7FFFFF, &lapic_clockevent);
lapic_clockevent.min_delta_ns =

2
arch/x86/kernel/hpet.c
View file

@ -218,7 +218,7 @@ static void hpet_legacy_clockevent_register(void)
hpet_freq = 1000000000000000ULL;
do_div(hpet_freq, hpet_period);
hpet_clockevent.mult = div_sc((unsigned long) hpet_freq,
NSEC_PER_SEC, 32);
NSEC_PER_SEC, hpet_clockevent.shift);
/* Calculate the min / max delta */
hpet_clockevent.max_delta_ns = clockevent_delta2ns(0x7FFFFFFF,
&hpet_clockevent);

3
arch/x86/kernel/i8253.c
View file

@ -115,7 +115,8 @@ void __init setup_pit_timer(void)
* IO_APIC has been initialized.
*/
pit_clockevent.cpumask = cpumask_of_cpu(smp_processor_id());
pit_clockevent.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, 32);
pit_clockevent.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC,
pit_clockevent.shift);
pit_clockevent.max_delta_ns =
clockevent_delta2ns(0x7FFF, &pit_clockevent);
pit_clockevent.min_delta_ns =

3
arch/x86/kernel/mfgpt_32.c
View file

@ -364,7 +364,8 @@ int __init mfgpt_timer_setup(void)
geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_SETUP, val);
/* Set up the clock event */
mfgpt_clockevent.mult = div_sc(MFGPT_HZ, NSEC_PER_SEC, 32);
mfgpt_clockevent.mult = div_sc(MFGPT_HZ, NSEC_PER_SEC,
mfgpt_clockevent.shift);
mfgpt_clockevent.min_delta_ns = clockevent_delta2ns(0xF,
&mfgpt_clockevent);
mfgpt_clockevent.max_delta_ns = clockevent_delta2ns(0xFFFE,