netdev - [PATCH] vlan: Support sending custom Ethernet CRC.

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Message-Id: <1330999558-14270-1-git-send-email-greearb@candelatech.com>
Date:	Mon,  5 Mar 2012 18:05:58 -0800
From:	greearb@...delatech.com
To:	netdev@...r.kernel.org
Cc:	kaber@...sh.net, Ben Greear <greearb@...delatech.com>
Subject: [PATCH] vlan:  Support sending custom Ethernet CRC.

From: Ben Greear <greearb@...delatech.com>

If the underlying device supports sending custom Ethernet CRC,
then enable that feature in the VLANs as well.

NOTE:  You will probably have to disable any
VLAN hardware assist on the underlying device to get
this to properly send packets with this feature enabled.

Signed-off-by: Ben Greear <greearb@...delatech.com>
---
:100644 100644 9988d4a... 6aeb0a3... M	net/8021q/vlan_dev.c
 net/8021q/vlan_dev.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 9988d4a..6aeb0a3 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -543,6 +543,9 @@ static int vlan_dev_init(struct net_device *dev)
 	dev->features |= real_dev->vlan_features | NETIF_F_LLTX;
 	dev->gso_max_size = real_dev->gso_max_size;

+	if (netif_supports_nofcs(real_dev))
+		dev->priv_flags |= IFF_SUPP_NOFCS;
+
 	/* ipv6 shared card related stuff */
 	dev->dev_id = real_dev->dev_id;

-- 
1.7.3.4

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