From b991d2bc4a6e1821555bdc2a682f9aed24650c98 Mon Sep 17 00:00:00 2001
From: Risto Suominen <Risto.Suominen@gmail.com>
Date: Sun, 8 Feb 2009 17:50:34 -0800
Subject: de2104x: force correct order when writing to rx ring

DescOwn should not be set, thus allowing the chip to use the
descriptor, before everything else is set up correctly.

Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/tulip/de2104x.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index 0bf2114738b..d4c5ecc51f7 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -464,13 +464,14 @@ static void de_rx (struct de_private *de)
 			drop = 1;
 
 rx_next:
-		de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn);
 		if (rx_tail == (DE_RX_RING_SIZE - 1))
 			de->rx_ring[rx_tail].opts2 =
 				cpu_to_le32(RingEnd | de->rx_buf_sz);
 		else
 			de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz);
 		de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping);
+		wmb();
+		de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn);
 		rx_tail = NEXT_RX(rx_tail);
 	}
 
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