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FROMLIST: time/sched_clock: Export sched_clock_register()

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clocksource driver may use sched_clock_register()
to resigter itself as a sched_clock source.
Export it to support building such driver
as module, like timer-mediatek.c

Link: https://lore.kernel.org/lkml/20230421034649.15247-5-walter.chang@mediatek.com/T/
Bug: 161675989
Change-Id: Ib052d1fd7ccf6a7422eb6f1755515e1236285e01
Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com>
This commit is contained in:
Chun-Hung Wu
2023-02-14 18:53:11 +08:00
committed by Greg Kroah-Hartman
parent bdad41f4cc
commit c451105379
1 changed files with 2 additions and 2 deletions
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4
kernel/time/sched_clock.c
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@@ -151,8 +151,7 @@ static enum hrtimer_restart sched_clock_poll(struct hrtimer *hrt)
return HRTIMER_RESTART;
}
void __init
sched_clock_register(u64 (*read)(void), int bits, unsigned long rate)
void sched_clock_register(u64 (*read)(void), int bits, unsigned long rate)
{
u64 res, wrap, new_mask, new_epoch, cyc, ns;
u32 new_mult, new_shift;
@@ -224,6 +223,7 @@ sched_clock_register(u64 (*read)(void), int bits, unsigned long rate)
pr_debug("Registered %pS as sched_clock source\n", read);
}
EXPORT_SYMBOL_GPL(sched_clock_register);
void __init generic_sched_clock_init(void)
{