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Date: Tue, 4 Apr 2023 14:42:13 +0100
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Mark Rutland <mark.rutland@....com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Will Deacon <will@...nel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<gregkh@...uxfoundation.org>
CC: <linuxarm@...wei.com>, Dan Williams <dan.j.williams@...el.com>,
Shaokun Zhang <zhangshaokun@...ilicon.com>,
Yicong Yang <yangyicong@...ilicon.com>,
Jiucheng Xu <jiucheng.xu@...ogic.com>,
Khuong Dinh <khuong@...amperecomputing.com>,
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Suzuki K Poulose <suzuki.poulose@....com>,
Liang Kan <kan.liang@...ux.intel.com>
Subject: [PATCH 20/32] perf/arm-ccn: Assign parents for event_source device
Currently the PMU device appears directly under /sys/devices/
Only root busses should appear there, so instead assign the pmu->dev
parent to be the platform device.
Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@kroah.com/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
---
drivers/perf/arm-ccn.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index 728d13d8e98a..dc8b0dcb436e 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -1265,6 +1265,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn)
/* Perf driver registration */
ccn->dt.pmu = (struct pmu) {
.module = THIS_MODULE,
+ .parent = ccn->dev,
.attr_groups = arm_ccn_pmu_attr_groups,
.task_ctx_nr = perf_invalid_context,
.event_init = arm_ccn_pmu_event_init,
--
2.37.2
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