netdrv: don't truncate VLAN TCI with VLAN stripping

The vlan_hwaccel_{rx,receive_skb} functions expect the full TCI field
for priority mappings, don't truncate the upper 4 bits.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index cb8dadd..41f3adf 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -2045,16 +2045,14 @@
 #ifdef CONFIG_IXGB_NAPI
 		if(adapter->vlgrp && (status & IXGB_RX_DESC_STATUS_VP)) {
 			vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
-				le16_to_cpu(rx_desc->special) &
-					IXGB_RX_DESC_SPECIAL_VLAN_MASK);
+				le16_to_cpu(rx_desc->special));
 		} else {
 			netif_receive_skb(skb);
 		}
 #else /* CONFIG_IXGB_NAPI */
 		if(adapter->vlgrp && (status & IXGB_RX_DESC_STATUS_VP)) {
 			vlan_hwaccel_rx(skb, adapter->vlgrp,
-				le16_to_cpu(rx_desc->special) &
-					IXGB_RX_DESC_SPECIAL_VLAN_MASK);
+				le16_to_cpu(rx_desc->special));
 		} else {
 			netif_rx(skb);
 		}