From: françois romieu <romieu@fr.zoreil.com>
Date: Fri, 1 May 2015 20:14:38 +0000 (+0200)
Subject: via-rhine: commit receive buffer address before descriptor status update.
X-Git-Tag: firefly_0821_release~176^2~1587^2~379^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e45af497950a89459a0c4b13ffd91e1729fffef4;p=firefly-linux-kernel-4.4.55.git

via-rhine: commit receive buffer address before descriptor status update.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index de2850497c09..88b45c7a35e0 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2075,6 +2075,7 @@ static int rhine_rx(struct net_device *dev, int limit)
 				break;
 			}
 			rp->rx_ring[entry].addr = cpu_to_le32(rp->rx_skbuff_dma[entry]);
+			dma_wmb();
 		}
 		rp->rx_ring[entry].rx_status = cpu_to_le32(DescOwn);
 	}