From: Anshuman Khandual Date: Wed, 15 Nov 2023 09:28:05 +0000 (+0530) Subject: drivers: perf: arm_pmu: Drop 'pmu_lock' element from 'struct pmu_hw_events' X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=118eb89b1e7f6807776c012cffc5c9b07fd26164;p=linux.git drivers: perf: arm_pmu: Drop 'pmu_lock' element from 'struct pmu_hw_events' As 'pmu_lock' element is not being used in any ARM PMU implementation, just drop this from 'struct pmu_hw_events'. Cc: Will Deacon Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual Acked-by: Mark Rutland Link: https://lore.kernel.org/r/20231115092805.737822-3-anshuman.khandual@arm.com Signed-off-by: Will Deacon --- diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index d712a19e47ac1..379479b50bdd7 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 143fbc10ecfe0..e2503d48ddee6 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.