Commit 
dc975382 "net: fec: add napi support to improve proformance"
converted the fec driver to the napi model. However, that commit
forgot to remove the call to skb_defer_rx_timestamp which is only
needed in non-napi drivers.
(The function napi_gro_receive eventually calls netif_receive_skb,
which in turn calls skb_defer_rx_timestamp.)
This patch should also be applied to the 3.9 and 3.10 kernels.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 
                                                       htons(ETH_P_8021Q),
                                                       vlan_tag);
 
-                       if (!skb_defer_rx_timestamp(skb))
-                               napi_gro_receive(&fep->napi, skb);
+                       napi_gro_receive(&fep->napi, skb);
                }
 
                bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, data,