[ 3.5.y.z extended stable ] Patch "drivers: net: ethernet: davinci_emac: use netif_wake_queue()" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    drivers: net: ethernet: davinci_emac: use netif_wake_queue()

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 99545f2376d20a2bd4a5cf1160e470707d2e298d Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm at ti.com>
Date: Wed, 27 Mar 2013 04:42:00 +0000
Subject: [PATCH] drivers: net: ethernet: davinci_emac: use netif_wake_queue()
 while restarting tx queue

commit 7e51cde276ca820d526c6c21cf8147df595a36bf upstream.

To restart tx queue use netif_wake_queue() intead of netif_start_queue()
so that net schedule will restart transmission immediately which will
increase network performance while doing huge data transfers.

Reported-by: Dan Franke <dan.franke at schneider-electric.com>
Suggested-by: Sriramakrishnan A G <srk at ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm at ti.com>
Acked-by: Eric Dumazet <edumazet at google.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/net/ethernet/ti/davinci_emac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 4da93a5..762464e 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1053,7 +1053,7 @@ static void emac_tx_handler(void *token, int len, int status)
 	atomic_dec(&priv->cur_tx);

 	if (unlikely(netif_queue_stopped(ndev)))
-		netif_start_queue(ndev);
+		netif_wake_queue(ndev);
 	ndev->stats.tx_packets++;
 	ndev->stats.tx_bytes += len;
 	dev_kfree_skb_any(skb);
--
1.8.1.2