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SubjectRe: [PATCH 1/3] time/sched_clock: Export sched_clock_register()
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On 08/02/2023 10:48, walter.chang@mediatek.com wrote:
> From: Chun-Hung Wu <chun-hung.wu@mediatek.com>
>
> 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
>
> Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com>
> ---
> kernel/time/sched_clock.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
> index 8464c5acc913..8e49e87d1221 100644
> --- a/kernel/time/sched_clock.c
> +++ b/kernel/time/sched_clock.c
> @@ -150,8 +150,7 @@ 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)

Is there a non-init caller?

> {
> u64 res, wrap, new_mask, new_epoch, cyc, ns;
> u32 new_mult, new_shift;
> @@ -223,6 +222,7 @@ 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);

Where is the module using it?

You need to bring users of these two changes, not just prepare something
for your out of tree patches.


Best regards,
Krzysztof

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