mac80211: make noack test available

There's this internal wifi_wme_noack_test variable that
we use to set the QoS control if set. For one, it is
unlikely that it is set. Secondly, if set it needs to
influence the IEEE80211_TX_CTL_NO_ACK TX control flag,
and finally we should also be able to set it at all, so
make it available in debugfs.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 0b8ad1f4ecdd..45b74f38b867 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -133,7 +133,7 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
                 u8 *p = ieee80211_get_qos_ctl(hdr);
                 u8 ack_policy = 0;
                 tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
-                if (local->wifi_wme_noack_test)
+                if (unlikely(local->wifi_wme_noack_test))
                         ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
                                         QOS_CONTROL_ACK_POLICY_SHIFT;
                 /* qos header is 2 bytes, second reserved */