Patch "iwlwifi: mvm: use the PROBE_RESP_QUEUE to send deauth to unknown station" has been added to the 4.9-stable tree

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

iwlwifi: mvm: use the PROBE_RESP_QUEUE to send deauth to unknown station

to the 4.9-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:
iwlwifi-mvm-use-the-probe_resp_queue-to-send-deauth-to-unknown-station.patch
and it can be found in the queue-4.9 subdirectory.

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

From: Emmanuel Grumbach <[email protected]>
Date: Sat, 7 Oct 2017 22:36:51 +0000
Subject: iwlwifi: mvm: use the PROBE_RESP_QUEUE to send deauth to unknown station

From: Emmanuel Grumbach <[email protected]>

[ Upstream commit d45cb20e123c5d7d6cd56301bc98f0bfd725cd77 ]

When we send a deauth to a station we don't know about, we need to use the PROBE_RESP queue. This can happen when we send a deauth to a station that is not associated to us.

---
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

@@ -499,15 +499,17 @@ static int iwl_mvm_get_ctrl_vif_queue(st
 	switch (info->control.vif->type) {
 	case NL80211_IFTYPE_AP:
 		/*
-		 * handle legacy hostapd as well, where station may be added
-		 * only after assoc.
+		 * Handle legacy hostapd as well, where station may be added
+		 * only after assoc. Take care of the case where we send a
+		 * deauth to a station that we don't have.
 		 */
-		if (ieee80211_is_probe_resp(fc) || ieee80211_is_auth(fc))
+		if (ieee80211_is_probe_resp(fc) || ieee80211_is_auth(fc) ||
+		    ieee80211_is_deauth(fc))
 			return IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
 		if (info->hw_queue == info->control.vif->cab_queue)
 			return info->hw_queue;
 
-		WARN_ON_ONCE(1);
+		WARN_ONCE(1, "fc=0x%02x", le16_to_cpu(fc));
 		return IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
 	case NL80211_IFTYPE_P2P_DEVICE:
 		if (ieee80211_is_mgmt(fc))

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

queue-4.9/iwlwifi-mvm-use-the-probe_resp_queue-to-send-deauth-to-unknown-station.patch