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SubjectRe: [PATCH 20/32] perf/arm-ccn: Assign parents for event_source device
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On 04/04/2023 14:42, Jonathan Cameron wrote:
> 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@huawei.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,


Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>

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