Commit 877084fb authored Apr 19, 2008 by Akinobu Mita Committed by Ingo Molnar Apr 26, 2008

x86: cleanup div_sc() usage



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>

parent d454157b

arch/x86/kernel/apic_32.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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 =

arch/x86/kernel/apic_64.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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 =

arch/x86/kernel/hpet.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

arch/x86/kernel/i8253.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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 =

arch/x86/kernel/mfgpt_32.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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,