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Patch "ath10k: wake up offchannel queue properly" has been added to the 4.2-stable tree

PATCH [email protected] 1 participant 1 message Oct 17, 2015

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This is a note to let you know that I've just added the patch titled

ath10k: wake up offchannel queue properly

to the 4.2-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:
ath10k-wake-up-offchannel-queue-properly.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 3a73d1a6f22bf13044056543ad43b2a304ee0022 Mon Sep 17 00:00:00 2001

From: Michal Kazior <[email protected]>
Date: Thu, 6 Aug 2015 14:46:54 +0200
Subject: ath10k: wake up offchannel queue properly

From: Michal Kazior <[email protected]>

commit 3a73d1a6f22bf13044056543ad43b2a304ee0022 upstream.

Once HTT Tx queue got full offchannel queue was stopped and never woken up again. This broke, e.g. P2P. This could be reproduced after running a lot of traffic enough to saturate 100% of the driver Tx queue and then trying to send offchannel traffic.

Fixes 96d828d45e16 ("ath10k: rework tx queue locking")
---
 drivers/net/wireless/ath/ath10k/mac.c |    2 ++
 1 file changed, 2 insertions(+)
drivers/net/wireless/ath/ath10k/mac.c +2 -0
@@ -3003,6 +3003,8 @@ void ath10k_mac_tx_unlock(struct ath10k
 						   IEEE80211_IFACE_ITER_RESUME_ALL,
 						   ath10k_mac_tx_unlock_iter,
 						   ar);
+
+	ieee80211_wake_queue(ar->hw, ar->hw->offchannel_tx_hw_queue);
 }
 
 void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)

Patches currently in stable-queue which might be from [email protected] are

queue-4.2/ath10k-fix-dma_mapping_error-handling.patch queue-4.2/ath10k-wake-up-queue-upon-vif-creation.patch queue-4.2/ath10k-fix-peer-limit-enforcement.patch queue-4.2/ath10k-reject-11b-tx-fragmentation-configuration.patch queue-4.2/ath10k-fix-per-vif-queue-locking.patch queue-4.2/ath10k-wake-up-offchannel-queue-properly.patch