net/mlx5: Remove unused msix related exported APIs

MSIX irq allocation and free APIs are no longer
in use. Hence, remove the dead code.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://lore.kernel.org/r/20240512124306.740898-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c

@@ -507,58 +507,6 @@ struct mlx5_irq *mlx5_irq_request(struct mlx5_core_dev *dev, u16 vecidx,
 	return irq;
 }
 
-/**
- * mlx5_msix_alloc - allocate msix interrupt
- * @dev: mlx5 device from which to request
- * @handler: interrupt handler
- * @affdesc: affinity descriptor
- * @name: interrupt name
- *
- * Returns: struct msi_map with result encoded.
- * Note: the caller must make sure to release the irq by calling
- *       mlx5_msix_free() if shutdown was initiated.
- */
-struct msi_map mlx5_msix_alloc(struct mlx5_core_dev *dev,
-			       irqreturn_t (*handler)(int, void *),
-			       const struct irq_affinity_desc *affdesc,
-			       const char *name)
-{
-	struct msi_map map;
-	int err;
-
-	if (!dev->pdev) {
-		map.virq = 0;
-		map.index = -EINVAL;
-		return map;
-	}
-
-	map = pci_msix_alloc_irq_at(dev->pdev, MSI_ANY_INDEX, affdesc);
-	if (!map.virq)
-		return map;
-
-	err = request_irq(map.virq, handler, 0, name, NULL);
-	if (err) {
-		mlx5_core_warn(dev, "err %d\n", err);
-		pci_msix_free_irq(dev->pdev, map);
-		map.virq = 0;
-		map.index = -ENOMEM;
-	}
-	return map;
-}
-EXPORT_SYMBOL(mlx5_msix_alloc);
-
-/**
- * mlx5_msix_free - free a previously allocated msix interrupt
- * @dev: mlx5 device associated with interrupt
- * @map: map previously returned by mlx5_msix_alloc()
- */
-void mlx5_msix_free(struct mlx5_core_dev *dev, struct msi_map map)
-{
-	free_irq(map.virq, NULL);
-	pci_msix_free_irq(dev->pdev, map);
-}
-EXPORT_SYMBOL(mlx5_msix_free);
-
 /**
  * mlx5_irq_release_vector - release one IRQ back to the system.
  * @irq: the irq to release.

include/linux/mlx5/driver.h

@@ -1374,11 +1374,4 @@ static inline bool mlx5_is_macsec_roce_supported(struct mlx5_core_dev *mdev)
 enum {
 	MLX5_OCTWORD = 16,
 };
-
-struct msi_map mlx5_msix_alloc(struct mlx5_core_dev *dev,
-			       irqreturn_t (*handler)(int, void *),
-			       const struct irq_affinity_desc *affdesc,
-			       const char *name);
-void mlx5_msix_free(struct mlx5_core_dev *dev, struct msi_map map);
-
 #endif /* MLX5_DRIVER_H */