diff options
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 85841fb1dfda..5c75217169f8 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -581,6 +581,13 @@ static int fec_enet_txq_submit_skb(struct sk_buff *skb, struct net_device *ndev) bdp->cbd_datlen = buflen; bdp->cbd_bufaddr = addr; + /* + * We need the preceding stores to the descriptor to complete + * before updating the status field, which hands it over to the + * hardware. The corresponding rmb() is "in the hardware". + */ + wmb(); + /* Send it on its way. Tell FEC it's ready, interrupt when done, * it's the last BD of the frame, and to put the CRC on the end. */ |