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path: root/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
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Diffstat (limited to 'drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c')
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 607bb7d4514d..87c642d3b075 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -772,6 +772,8 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
tx_ring->tx_stats.tx_bytes += skb->len;
tx_ring->tx_stats.xmit_called++;
+ /* Ensure writes are complete before HW fetches Tx descriptors */
+ wmb();
qlcnic_update_cmd_producer(tx_ring);
return NETDEV_TX_OK;