net/mlx5: Use first online CPU instead of hard coded CPU

Hard coded CPU (0 in our case) might be offline. Hence, use the first
online CPU instead.

Fixes: f891b7cdbdcd ("net/mlx5: Enable single IRQ for PCI Function")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
index 830444f..0e84c00 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
@@ -398,7 +398,7 @@ irq_pool_request_vector(struct mlx5_irq_pool *pool, int vecidx,
        cpumask_copy(irq->mask, affinity);
        if (!irq_pool_is_sf_pool(pool) && !pool->xa_num_irqs.max &&
            cpumask_empty(irq->mask))
-               cpumask_set_cpu(0, irq->mask);
+               cpumask_set_cpu(cpumask_first(cpu_online_mask), irq->mask);
        irq_set_affinity_hint(irq->irqn, irq->mask);
 unlock:
        mutex_unlock(&pool->lock);