netdev - [PATCH net-next v2 6/7] net/mlx5e: Remove the wrong assumption about transport offset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20190221123908.7196-7-maximmi@mellanox.com>
Date:   Thu, 21 Feb 2019 12:40:04 +0000
From:   Maxim Mikityanskiy <maximmi@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Jason Wang <jasowang@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Eran Ben Elisha <eranbe@...lanox.com>,
        Tariq Toukan <tariqt@...lanox.com>,
        Maxim Mikityanskiy <maximmi@...lanox.com>
Subject: [PATCH net-next v2 6/7] net/mlx5e: Remove the wrong assumption about
 transport offset

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@...lanox.com>
Reviewed-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index c1334a8ac8f3..6ca834702306 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -172,15 +172,8 @@ 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);
-- 
2.19.1