netdev - [PATCH] gianfar:don't add FCB length to hard_header

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Date:	Tue, 22 May 2012 17:00:48 +0800
From:	Jiajun Wu <b06378@...escale.com>
To:	<netdev@...r.kernel.org>, <davem@...emloft.net>
CC:	<linuxppc-dev@...ts.ozlabs.org>, Jiajun Wu <b06378@...escale.com>
Subject: [PATCH] gianfar:don't add FCB length to hard_header_len

FCB(Frame Control Block) isn't the part of netdev hard header.
Add FCB to hard_header_len will make GRO fail at MAC comparision stage.

Signed-off-by: Jiajun Wu <b06378@...escale.com>
---
 drivers/net/ethernet/freescale/gianfar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 1adb024..0741ade 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1082,7 +1082,7 @@ static int gfar_probe(struct platform_device *ofdev)
 
 	if (dev->features & NETIF_F_IP_CSUM ||
 			priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)
-		dev->hard_header_len += GMAC_FCB_LEN;
+		dev->needed_headroom = GMAC_FCB_LEN;
 
 	/* Program the isrg regs only if number of grps > 1 */
 	if (priv->num_grps > 1) {
-- 
1.5.6.5


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