3.11.10.7 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Emmanuel Grumbach <[email protected]>

commit 1e9291996c4eedf79883f47ec635235e39d3d6cd upstream.

Since the statistics handler is asynchrous, it can very well
be that we will handle the statistics (hence the RSSI
fluctuation) when we already disassociated.
Don't WARN on this case.

This solves: https://bugzilla.redhat.com/show_bug.cgi?id=1071998

Fixes: 2b76ef13086f ("iwlwifi: mvm: implement reduced Tx power")
Reviewed-by: Johannes Berg <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
[ luis: backported to 3.11: adjusted context ]
Signed-off-by: Luis Henriques <[email protected]>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c 
b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index dbd622a..1486767 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -544,8 +544,11 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct 
ieee80211_vif *vif,
 
        mutex_lock(&mvm->mutex);
 
-       /* Rssi update while not associated ?! */
-       if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
+       /*
+        * Rssi update while not associated - can happen since the statistics
+        * are handled asynchronously
+        */
+       if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
                goto out_unlock;
 
        /* No open connection - reports should be disabled */
-- 
1.9.1

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