On 04/04/2023 14:42, Jonathan Cameron wrote:
> Currently all these devices appear directly under /sys/devices/
> Only root busses should appear there, so instead assign the pmu->dev
> parents 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_cspmu/arm_cspmu.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/perf/arm_cspmu/arm_cspmu.c b/drivers/perf/arm_cspmu/arm_cspmu.c
> index e31302ab7e37..4390e4fb1e95 100644
> --- a/drivers/perf/arm_cspmu/arm_cspmu.c
> +++ b/drivers/perf/arm_cspmu/arm_cspmu.c
> @@ -1155,6 +1155,7 @@ static int arm_cspmu_register_pmu(struct arm_cspmu *cspmu)
> cspmu->pmu = (struct pmu){
> .task_ctx_nr = perf_invalid_context,
> .module = THIS_MODULE,
> + .parent = cspmu->dev,
> .pmu_enable = arm_cspmu_enable,
> .pmu_disable = arm_cspmu_disable,
> .event_init = arm_cspmu_event_init,
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>