mlx4: remove num_lro parameter

As suggested by David, this parameter can die, we can use ethtool
to turn LRO on/off. Compile tests only.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index efc3fad..2add040 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -320,9 +320,9 @@
 	ring->lro.frag_align_pad = NET_IP_ALIGN;
 	ring->lro.ip_summed = CHECKSUM_UNNECESSARY;
 	ring->lro.ip_summed_aggr = CHECKSUM_UNNECESSARY;
-	ring->lro.max_desc = mdev->profile.num_lro;
+	ring->lro.max_desc = MLX4_EN_MAX_LRO_DESCRIPTORS;
 	ring->lro.max_aggr = MAX_SKB_FRAGS;
-	ring->lro.lro_arr = kcalloc(mdev->profile.num_lro,
+	ring->lro.lro_arr = kcalloc(MLX4_EN_MAX_LRO_DESCRIPTORS,
 				    sizeof(struct net_lro_desc),
 				    GFP_KERNEL);
 	if (!ring->lro.lro_arr) {