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Commit 877084fb authored by Akinobu Mita's avatar Akinobu Mita Committed by Ingo Molnar
Browse files

x86: cleanup div_sc() usage 



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

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarIngo 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,