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clocksource/drivers/mips-gic-timer: Remove pointless irq_save,restore

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The function gic_next_event is always called with interrupts disabled, so
the local_irq_save / local_irq_restore are pointless - remove them.

[Daniel Lezcano: Fixed warning by removing unused variable 'flags']

Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Matt Redfearn 2017-10-19 12:55:34 +01:00 committed by Daniel Lezcano
parent a7fb4577bb
commit 7957b07b55
1 changed files with 0 additions and 3 deletions
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3
drivers/clocksource/mips-gic-timer.c
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@ -39,16 +39,13 @@ static u64 notrace gic_read_count(void)
static int gic_next_event(unsigned long delta, struct clock_event_device *evt)
{
unsigned long flags;
u64 cnt;
int res;
cnt = gic_read_count();
cnt += (u64)delta;
local_irq_save(flags);
write_gic_vl_other(mips_cm_vp_id(cpumask_first(evt->cpumask)));
write_gic_vo_compare(cnt);
local_irq_restore(flags);
res = ((int)(gic_read_count() - cnt) >= 0) ? -ETIME : 0;
return res;
}