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Subject: [PATCH 18/32] perf/alibaba_uncore: Assign parents for event_source device
Date:   Tue, 4 Apr 2023 14:42:11 +0100
Message-ID: <20230404134225.13408-19-Jonathan.Cameron@huawei.com>
In-Reply-To: <20230404134225.13408-1-Jonathan.Cameron@huawei.com>
References: <20230404134225.13408-1-Jonathan.Cameron@huawei.com>
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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/
Cc: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/perf/alibaba_uncore_drw_pmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/alibaba_uncore_drw_pmu.c b/drivers/perf/alibaba_uncore_drw_pmu.c
index a7689fecb49d..0d129acf3f84 100644
--- a/drivers/perf/alibaba_uncore_drw_pmu.c
+++ b/drivers/perf/alibaba_uncore_drw_pmu.c
@@ -683,6 +683,7 @@ static int ali_drw_pmu_probe(struct platform_device *pdev)
 
 	drw_pmu->pmu = (struct pmu) {
 		.module		= THIS_MODULE,
+		.parent		= &pdev->dev,
 		.task_ctx_nr	= perf_invalid_context,
 		.event_init	= ali_drw_pmu_event_init,
 		.add		= ali_drw_pmu_add,
-- 
2.37.2