net/mlx5e: Fix RQ creation flow for queues which doesn't support XDP

Allow to create an RQ which is not registered as an XDP RQ. For example:
the trap-RQ doesn't register as an XDP RQ.

Fixes: 869c5f9262 ("net/mlx5e: Generalize open RQ")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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

@@ -510,8 +510,9 @@ static int mlx5e_alloc_rq(struct mlx5e_params *params,
 			rq->page_pool = NULL;
 			goto err_free_by_rq_type;
 		}
-		err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
-						 MEM_TYPE_PAGE_POOL, rq->page_pool);
+		if (xdp_rxq_info_is_reg(&rq->xdp_rxq))
+			err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq,
+							 MEM_TYPE_PAGE_POOL, rq->page_pool);
 	}
 	if (err)
 		goto err_free_by_rq_type;