Messages in this thread Patch in this message | | | From | Anshuman Khandual <> | Subject | [RFC 2/2] drivers: perf: arm_pmu: Drop 'pmu_lock' element from 'struct pmu_hw_events' | Date | Mon, 16 Oct 2023 10:54:31 +0530 |
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As 'pmu_lock' element is not being used in any ARM PMU implementation, just drop this from 'struct pmu_hw_events'.
Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> --- drivers/perf/arm_pmu.c | 1 - include/linux/perf/arm_pmu.h | 6 ------ 2 files changed, 7 deletions(-)
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index d712a19e47ac..379479b50bdd 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -893,7 +893,6 @@ struct arm_pmu *armpmu_alloc(void) struct pmu_hw_events *events; events = per_cpu_ptr(pmu->hw_events, cpu); - raw_spin_lock_init(&events->pmu_lock); events->percpu_pmu = pmu; } diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index 143fbc10ecfe..e2503d48ddee 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -59,12 +59,6 @@ struct pmu_hw_events { */ DECLARE_BITMAP(used_mask, ARMPMU_MAX_HWEVENTS); - /* - * Hardware lock to serialize accesses to PMU registers. Needed for the - * read/modify/write sequences. - */ - raw_spinlock_t pmu_lock; - /* * When using percpu IRQs, we need a percpu dev_id. Place it here as we * already have to allocate this struct per cpu. -- 2.25.1
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