This is a note to let you know that I've just added the patch titled
mac80211: use wake_queue to restart trasmit
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mac80211-use-wake_queue-to-restart-trasmit.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 470ab2a23b453518ac86937572b4531d8925ca55 Mon Sep 17 00:00:00 2001
From: Rajkumar Manoharan <[email protected]>
Date: Fri, 29 Apr 2011 14:48:45 +0530
Subject: mac80211: use wake_queue to restart trasmit
From: Rajkumar Manoharan <[email protected]>
commit 470ab2a23b453518ac86937572b4531d8925ca55 upstream.
netif_tx_start_all_queues is used to allow the upper layer
to transmit frames but it does not restart transmission.
To restart the trasmission use netif_tx_wake_all_queues.
Not doing so, sometimes stalls the transmission and the
application has to be restarted to proceed further.
This issue was originally found while sending udp traffic
in higer bandwidth in open environment without bgscan.
Signed-off-by: Rajkumar Manoharan <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/mac80211/mlme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -789,7 +789,7 @@ void ieee80211_dynamic_ps_enable_work(st
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
}
- netif_tx_start_all_queues(sdata->dev);
+ netif_tx_wake_all_queues(sdata->dev);
}
void ieee80211_dynamic_ps_timer(unsigned long data)
Patches currently in stable-queue which might be from [email protected] are
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