[PATCH v2 2/4] perf/x86: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability

From: James Clark
Date: Mon Jul 24 2023 - 09:48:29 EST


Since commit bd2756811766 ("perf: Rewrite core context handling") the
relationship between perf_event_context and PMUs has changed so that
the error scenario that PERF_PMU_CAP_HETEROGENEOUS_CPUS originally
silenced no longer exists.

Remove the capability to avoid confusion that it actually influences
any perf core behavior. This change should be a no-op.

Acked-by: Ian Rogers <irogers@xxxxxxxxxx>
Signed-off-by: James Clark <james.clark@xxxxxxx>
---
arch/x86/events/core.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 9d248703cbdd..2353aaf0b248 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2168,7 +2168,6 @@ static int __init init_hw_perf_events(void)
hybrid_pmu->pmu = pmu;
hybrid_pmu->pmu.type = -1;
hybrid_pmu->pmu.attr_update = x86_pmu.attr_update;
- hybrid_pmu->pmu.capabilities |= PERF_PMU_CAP_HETEROGENEOUS_CPUS;
hybrid_pmu->pmu.capabilities |= PERF_PMU_CAP_EXTENDED_HW_TYPE;

err = perf_pmu_register(&hybrid_pmu->pmu, hybrid_pmu->name,
--
2.34.1