From: Maxim Mikityanskiy <maximmi@mellanox.com>
Date: Thu, 21 Feb 2019 12:40:04 +0000
Subject: net/mlx5e: Remove the wrong assumption about transport offset
Patch-mainline: v5.1-rc1
Git-commit: 3517dfe6f23608951044cbfc833fa108603441fa
References: bsc#1176081

skb_transport_offset() == 0 is not a special value. The only special
value is when skb->transport_header is ~0U, and it's checked by
skb_transport_header_was_set().

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Michal Kubecek <mkubecek@suse.cz>

---
 drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -143,15 +143,8 @@ static inline u16 mlx5e_calc_min_inline(enum mlx5_inline_modes mode,
 			hlen += VLAN_HLEN;
 		break;
 	case MLX5_INLINE_MODE_IP:
-		/* When transport header is set to zero, it means no transport
-		 * header. When transport header is set to 0xff's, it means
-		 * transport header wasn't set.
-		 */
-		if (skb_transport_offset(skb)) {
-			hlen = mlx5e_skb_l3_header_offset(skb);
-			break;
-		}
-		/* fall through */
+		hlen = mlx5e_skb_l3_header_offset(skb);
+		break;
 	case MLX5_INLINE_MODE_L2:
 	default:
 		hlen = mlx5e_skb_l2_header_offset(skb);