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Subject[PATCH 4.9 007/171] mac80211: TDLS: fix skb queue/priority assignment
Date
4.9-stable review patch.  If anyone has any objections, please let me know.

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

[ Upstream commit cb59bc14e830028d2244861216df038165d7625d ]

If the TDLS setup happens over a connection to an AP that
doesn't have QoS, we nevertheless assign a non-zero TID
(skb->priority) and queue mapping, which may confuse us or
drivers later.

Fix it by just assigning the special skb->priority and then
using ieee80211_select_queue() just like other data frames
would go through.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/tdls.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index f20dcf1b1830..c64ae68ae4f8 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -16,6 +16,7 @@
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
+#include "wme.h"

/* give usermode some time for retries in setting up the TDLS session */
#define TDLS_PEER_SETUP_TIMEOUT (15 * HZ)
@@ -1019,14 +1020,13 @@ ieee80211_tdls_prep_mgmt_packet(struct wiphy *wiphy, struct net_device *dev,
switch (action_code) {
case WLAN_TDLS_SETUP_REQUEST:
case WLAN_TDLS_SETUP_RESPONSE:
- skb_set_queue_mapping(skb, IEEE80211_AC_BK);
- skb->priority = 2;
+ skb->priority = 256 + 2;
break;
default:
- skb_set_queue_mapping(skb, IEEE80211_AC_VI);
- skb->priority = 5;
+ skb->priority = 256 + 5;
break;
}
+ skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, skb));

/*
* Set the WLAN_TDLS_TEARDOWN flag to indicate a teardown in progress.
--
2.17.1


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