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gianfar: Fix frame size calculation when hardware VLAN acceleration is on 

In gfar_change_mtu(), the frame size needs to be increased to account
for the extra 4 bytes VLAN adds to the ethernet header.  However,
it was being increased by the length of the whole header (18 bytes),
which is wrong.

Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Dai Haruki 2008-03-24 10:53:26 -05:00 committed by Jeff Garzik
parent a3cb96a13c
commit faa8957762
1 changed files with 1 additions and 1 deletions
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2
drivers/net/gianfar.c
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@ -1185,7 +1185,7 @@ static int gfar_change_mtu(struct net_device *dev, int new_mtu)
int frame_size = new_mtu + ETH_HLEN;
if (priv->vlan_enable)
frame_size += VLAN_ETH_HLEN;
frame_size += VLAN_HLEN;
if (gfar_uses_fcb(priv))
frame_size += GMAC_FCB_LEN;