# \[PATCH v1 12/14\] hinic: Use irq\_set\_affinity\_and\_hint - From: Nitesh Narayan Lal \ - Date: 2021-06-17 18:25:23 - List: netdev - Page: https://ratatoskr.run/netdev/2021/06/1418301 - Thread: https://ratatoskr.run/linux-scsi/2021/06/1418288/t.md ```text The driver uses irq_set_affinity_hint() to: - Set the affinity_hint which is consumed by the userspace for distributing the interrupts - Enforce affinity As per commit 352f58b0d9f2 ("net-next/hinic: Set Rxq irq to specific cpu for NUMA"), the hinic driver enforces its own affinity to bind IRQs to the local NUMA node. However, irq_set_affinity_hint() applying the provided cpumask as an affinity for the interrupt is an undocumented side effect. To remove this side effect irq_set_affinity_hint() has been marked as deprecated and new interfaces have been introduced. Hence, replace the irq_set_affinity_hint() with the new interface irq_set_affinity_and_hint() that applies the affinity and updates the affinity_hint pointer. Also, use irq_update_affinity() when only affinity_hint needs to be updated. Signed-off-by: Nitesh Narayan Lal --- drivers/net/ethernet/huawei/hinic/hinic_rx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.c b/drivers/net/ethernet/huawei/hinic/hinic_rx.c index cce08647b9b2..c6cac4bbdb49 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_rx.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.c @@ -547,7 +547,7 @@ static int rx_request_irq(struct hinic_rxq *rxq) goto err_req_irq; cpumask_set_cpu(qp->q_id % num_online_cpus(), &rq->affinity_mask); - err = irq_set_affinity_hint(rq->irq, &rq->affinity_mask); + err = irq_set_affinity_and_hint(rq->irq, &rq->affinity_mask); if (err) goto err_irq_affinity; @@ -564,7 +564,7 @@ static void rx_free_irq(struct hinic_rxq *rxq) { struct hinic_rq *rq = rxq->rq; - irq_set_affinity_hint(rq->irq, NULL); + irq_update_affinity_hint(rq->irq, NULL); free_irq(rq->irq, rxq); rx_del_napi(rxq); } -- 2.27.0 ```