netdev - [PATCH net-next 04/10] sfc: Stop changing header offsets on TX

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Message-ID: <1342548382.2698.22.camel@bwh-desktop.uk.solarflarecom.com>
Date:	Tue, 17 Jul 2012 19:06:22 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>
Subject: [PATCH net-next 04/10] sfc: Stop changing header offsets on TX

There is nothing in the VLAN driver or core VLAN support that
invalidates the TCP and IP header offsets.

Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
---
 drivers/net/ethernet/sfc/tx.c |    9 ---------
 1 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index cfa5f6d..9b225a7 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -651,17 +651,8 @@ static __be16 efx_tso_check_protocol(struct sk_buff *skb)
 	EFX_BUG_ON_PARANOID(((struct ethhdr *)skb->data)->h_proto !=
 			    protocol);
 	if (protocol == htons(ETH_P_8021Q)) {
-		/* Find the encapsulated protocol; reset network header
-		 * and transport header based on that. */
 		struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
 		protocol = veh->h_vlan_encapsulated_proto;
-		skb_set_network_header(skb, sizeof(*veh));
-		if (protocol == htons(ETH_P_IP))
-			skb_set_transport_header(skb, sizeof(*veh) +
-						 4 * ip_hdr(skb)->ihl);
-		else if (protocol == htons(ETH_P_IPV6))
-			skb_set_transport_header(skb, sizeof(*veh) +
-						 sizeof(struct ipv6hdr));
 	}
 
 	if (protocol == htons(ETH_P_IP)) {
-- 
1.7.7.6



-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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