From: David Ahern <david.ahern@xxxxxxxxxx>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 5b0d4b5514bbcce69b516d0742f2cfc84ebd6db3 ]
perf_pmu_disable is called by core perf code before pmu->del and the
enable function is called by core perf code afterwards. No need to
call again within sparc_pmu_del.
Ditto for pmu->add and sparc_pmu_add.
Signed-off-by: David Ahern <david.ahern@xxxxxxxxxx>
Acked-by: Bob Picco <bob.picco@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
arch/sparc/kernel/perf_event.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 46a5e45..6dc4e79 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1101,7 +1101,6 @@ static void sparc_pmu_del(struct perf_event *event, int _flags)
int i;
local_irq_save(flags);
- perf_pmu_disable(event->pmu);
for (i = 0; i < cpuc->n_events; i++) {
if (event == cpuc->event[i]) {
@@ -1127,7 +1126,6 @@ static void sparc_pmu_del(struct perf_event *event, int _flags)
}
}
- perf_pmu_enable(event->pmu);
local_irq_restore(flags);
}
@@ -1361,7 +1359,6 @@ static int sparc_pmu_add(struct perf_event *event, int ef_flags)
unsigned long flags;
local_irq_save(flags);
- perf_pmu_disable(event->pmu);
n0 = cpuc->n_events;
if (n0 >= sparc_pmu->max_hw_events)
@@ -1394,7 +1391,6 @@ nocheck:
ret = 0;
out:
- perf_pmu_enable(event->pmu);
local_irq_restore(flags);
return ret;
}
--
2.1.0
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