linux-kernel - [PATCH] net: fs_enet: explicitly remove I flag on TX partial frames

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Message-Id: <20150811101101.116E41A2414@localhost.localdomain>
Date:	Tue, 11 Aug 2015 12:11:00 +0200 (CEST)
From:	Christophe Leroy <christophe.leroy@....fr>
To:	Pantelis Antoniou <pantelis.antoniou@...il.com>,
	Vitaly Bordug <vbordug@...mvista.com>, davem@...emloft.net
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	netdev@...r.kernel.org
Subject: [PATCH] net: fs_enet: explicitly remove I flag on TX partial frames

We are not interested in interrupts for partially transmitted frames,
we have to clear BD_ENET_TX_INTR explicitly otherwise it may remain
from a previously used descriptor.

Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
 drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index b9ad34e..84c18ee 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -585,7 +585,8 @@ static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	frag = skb_shinfo(skb)->frags;
 	while (nr_frags) {
 		CBDC_SC(bdp,
-			BD_ENET_TX_STATS | BD_ENET_TX_LAST | BD_ENET_TX_TC);
+			BD_ENET_TX_STATS | BD_ENET_TX_INTR | BD_ENET_TX_LAST |
+			BD_ENET_TX_TC);
 		CBDS_SC(bdp, BD_ENET_TX_READY);
 
 		if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0)
-- 
2.1.0

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