[3.19.y-ckt stable] Patch "iwlwifi: mvm: clear csa countdown when AP is stopped" has been added to staging queue

[Kamal Mostafa]

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

    iwlwifi: mvm: clear csa countdown when AP is stopped

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt10.

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

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 79cf6e31fb1f78c16675e6b8a290b444aa512bff Mon Sep 17 00:00:00 2001
From: Avraham Stern <avraham.stern at intel.com>
Date: Mon, 31 Aug 2015 11:08:27 +0300
Subject: [PATCH 067/120] iwlwifi: mvm: clear csa countdown when AP is stopped

commit e9cb0327b26dd7ba43a3b7a05b4b62219decf42d upstream.

The csa_countdown flag was not cleared when the AP is stopped.
As a result, if the AP was stopped after csa_countdown had started,
all the folowing channel switch commands would fail.
Fix that by clearing the csa_countdown flag when the AP is stopped.

Signed-off-by: Avraham Stern <avraham.stern at intel.com>
Signed-off-by: Luca Coelho <luciano.coelho at intel.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 7b0d757..ba2b6f5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1818,6 +1818,7 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
 		iwl_mvm_remove_time_event(mvm, mvmvif,
 					  &mvmvif->time_event_data);
 		RCU_INIT_POINTER(mvm->csa_vif, NULL);
+		mvmvif->csa_countdown = false;
 	}

 	if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
--
1.9.1