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Commit faa89577 authored by Dai Haruki's avatar Dai Haruki Committed by Jeff Garzik
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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: default avatarDai Haruki <dai.haruki@freescale.com>
Signed-off-by: default avatarAndy Fleming <afleming@freescale.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent a3cb96a1

drivers/net/gianfar.c

+1 −1
Original line number Diff line number Diff line
@@ -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;