net/mlx5: Node-aware allocation for the doorbell pgdir

The function is node-aware and gets the node as an argument.
Use a node-aware allocation for the doorbell pgdir structure.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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

@@ -183,11 +183,11 @@ static struct mlx5_db_pgdir *mlx5_alloc_db_pgdir(struct mlx5_core_dev *dev,
 	u32 db_per_page = PAGE_SIZE / cache_line_size();
 	struct mlx5_db_pgdir *pgdir;
 
-	pgdir = kzalloc(sizeof(*pgdir), GFP_KERNEL);
+	pgdir = kzalloc_node(sizeof(*pgdir), GFP_KERNEL, node);
 	if (!pgdir)
 		return NULL;
 
-	pgdir->bitmap = bitmap_zalloc(db_per_page, GFP_KERNEL);
+	pgdir->bitmap = bitmap_zalloc_node(db_per_page, GFP_KERNEL, node);
 	if (!pgdir->bitmap) {
 		kfree(pgdir);
 		return NULL;