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Subject[PATCH 15/17] clocksource/drivers/mips-gic-timer: Remove pointless irq_save,restore
Date
From: Matt Redfearn <matt.redfearn@mips.com>

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>
---
drivers/clocksource/mips-gic-timer.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index ae3167c..775dea0 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -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;
}
--
2.7.4
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