[PATCH 5/9] sched/clock: Remove unused argument to sched_clock_idle_wakeup_event()

From: Peter Zijlstra
Date: Fri Apr 21 2017 - 13:09:41 EST


The argument to sched_clock_idle_wakeup_event() has not been used in a
long time. Remove it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
arch/x86/kernel/tsc.c | 2 +-
include/linux/sched/clock.h | 4 ++--
kernel/sched/clock.c | 4 ++--
kernel/time/tick-sched.c | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)

--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -284,7 +284,7 @@ static void set_cyc2ns_scale(unsigned lo
cyc2ns_write_end(cpu, data);

done:
- sched_clock_idle_wakeup_event(0);
+ sched_clock_idle_wakeup_event();
local_irq_restore(flags);
}
/*
--- a/include/linux/sched/clock.h
+++ b/include/linux/sched/clock.h
@@ -39,7 +39,7 @@ static inline void sched_clock_idle_slee
{
}

-static inline void sched_clock_idle_wakeup_event(u64 delta_ns)
+static inline void sched_clock_idle_wakeup_event(void)
{
}

@@ -66,7 +66,7 @@ extern u64 __sched_clock_offset;
extern void sched_clock_tick(void);
extern void sched_clock_tick_stable(void);
extern void sched_clock_idle_sleep_event(void);
-extern void sched_clock_idle_wakeup_event(u64 delta_ns);
+extern void sched_clock_idle_wakeup_event(void);

/*
* As outlined in clock.c, provides a fast, high resolution, nanosecond
--- a/kernel/sched/clock.c
+++ b/kernel/sched/clock.c
@@ -410,9 +410,9 @@ void sched_clock_idle_sleep_event(void)
EXPORT_SYMBOL_GPL(sched_clock_idle_sleep_event);

/*
- * We just idled delta nanoseconds (called with irqs disabled):
+ * We just idled; resync with ktime. (called with irqs disabled):
*/
-void sched_clock_idle_wakeup_event(u64 delta_ns)
+void sched_clock_idle_wakeup_event(void)
{
if (timekeeping_suspended)
return;
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -573,7 +573,7 @@ static void tick_nohz_stop_idle(struct t
update_ts_time_stats(smp_processor_id(), ts, now, NULL);
ts->idle_active = 0;

- sched_clock_idle_wakeup_event(0);
+ sched_clock_idle_wakeup_event();
}

static ktime_t tick_nohz_start_idle(struct tick_sched *ts)