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path: root/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
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Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 1e33abde4a3e..39af4f85379d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -2591,7 +2591,8 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode)
wmb();
txdata->tx_db.data.prod += 2;
- barrier();
+ /* make sure descriptor update is observed by the HW */
+ wmb();
DOORBELL(bp, txdata->cid, txdata->tx_db.raw);
mmiowb();