[PATCH v2 08/20] arm: perf/core: remove unnecessary checks for exclusion

From: Andrew Murray
Date: Mon Nov 26 2018 - 06:14:09 EST


For drivers that do not support context exclusion we do not
advertise the PERF_PMU_CAP_EXCLUDE capability. This ensures that
perf will prevent us from handling events where any exclusion
flags are set. Let's remove the now unnecessary check for
exclusion flags.

Signed-off-by: Andrew Murray <andrew.murray@xxxxxxx>
---
arch/arm/mach-imx/mmdc.c | 8 +-------
arch/arm/mm/cache-l2x0-pmu.c | 8 --------
2 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/arch/arm/mach-imx/mmdc.c b/arch/arm/mach-imx/mmdc.c
index 04b3bf7..b937a15 100644
--- a/arch/arm/mach-imx/mmdc.c
+++ b/arch/arm/mach-imx/mmdc.c
@@ -293,13 +293,7 @@ static int mmdc_pmu_event_init(struct perf_event *event)
return -EOPNOTSUPP;
}

- if (event->attr.exclude_user ||
- event->attr.exclude_kernel ||
- event->attr.exclude_hv ||
- event->attr.exclude_idle ||
- event->attr.exclude_host ||
- event->attr.exclude_guest ||
- event->attr.sample_period)
+ if (event->attr.sample_period)
return -EINVAL;

if (cfg < 0 || cfg >= MMDC_NUM_COUNTERS)
diff --git a/arch/arm/mm/cache-l2x0-pmu.c b/arch/arm/mm/cache-l2x0-pmu.c
index afe5b4c..ba92f9e 100644
--- a/arch/arm/mm/cache-l2x0-pmu.c
+++ b/arch/arm/mm/cache-l2x0-pmu.c
@@ -314,14 +314,6 @@ static int l2x0_pmu_event_init(struct perf_event *event)
event->attach_state & PERF_ATTACH_TASK)
return -EINVAL;

- if (event->attr.exclude_user ||
- event->attr.exclude_kernel ||
- event->attr.exclude_hv ||
- event->attr.exclude_idle ||
- event->attr.exclude_host ||
- event->attr.exclude_guest)
- return -EINVAL;
-
if (event->cpu < 0)
return -EINVAL;

--
2.7.4