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From:   Valentin Schneider <vschneid@redhat.com>
To:     netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     Saeed Mahameed <saeedm@nvidia.com>,
        Leon Romanovsky <leon@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
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        Barry Song <song.bao.hua@hisilicon.com>,
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        Tony Luck <tony.luck@intel.com>,
        Jonathan Cameron <Jonathan.Cameron@huawei.com>,
        Gal Pressman <gal@nvidia.com>, Tariq Toukan <tariqt@nvidia.com>
Subject: [PATCH v2 5/5] SHOWCASE: net/mlx5e: Leverage for_each_numa_hop_cpu()
Date:   Thu, 18 Aug 2022 17:45:22 +0100
Message-Id: <20220818164522.1087673-3-vschneid@redhat.com>
In-Reply-To: <20220818164522.1087673-1-vschneid@redhat.com>
References: <20220817175812.671843-1-vschneid@redhat.com>
 <20220818164522.1087673-1-vschneid@redhat.com>
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Not-signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eq.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 229728c80233..0a5432903edd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -812,6 +812,7 @@ static int comp_irqs_request(struct mlx5_core_dev *dev)
 	int ncomp_eqs = table->num_comp_eqs;
 	u16 *cpus;
 	int ret;
+	int cpu;
 	int i;
 
 	ncomp_eqs = table->num_comp_eqs;
@@ -830,8 +831,15 @@ static int comp_irqs_request(struct mlx5_core_dev *dev)
 		ret = -ENOMEM;
 		goto free_irqs;
 	}
-	for (i = 0; i < ncomp_eqs; i++)
-		cpus[i] = cpumask_local_spread(i, dev->priv.numa_node);
+
+	rcu_read_lock();
+	for_each_numa_hop_cpus(cpu, dev->priv.numa_node) {
+		cpus[i] = cpu;
+		if (++i == ncomp_eqs)
+			goto spread_done;
+	}
+spread_done:
+	rcu_read_unlock();
 	ret = mlx5_irqs_request_vectors(dev, cpus, ncomp_eqs, table->comp_irqs);
 	kfree(cpus);
 	if (ret < 0)
-- 
2.31.1