mac80211: defines for AC numbers

In many places we've just hardcoded the
AC numbers -- which is a relic from the
original mac80211 (d80211). Add constants
for them so we know what we're talking
about.

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

include/net/mac80211.h

@@ -96,6 +96,20 @@ enum ieee80211_max_queues {
 	IEEE80211_MAX_QUEUES =		4,
 };
 
+/**
+ * enum ieee80211_ac_numbers - AC numbers as used in mac80211
+ * @IEEE80211_AC_VO: voice
+ * @IEEE80211_AC_VI: video
+ * @IEEE80211_AC_BE: best effort
+ * @IEEE80211_AC_BK: background
+ */
+enum ieee80211_ac_numbers {
+	IEEE80211_AC_VO		= 0,
+	IEEE80211_AC_VI		= 1,
+	IEEE80211_AC_BE		= 2,
+	IEEE80211_AC_BK		= 3,
+};
+
 /**
  * struct ieee80211_tx_queue_params - transmit queue configuration
  *

net/mac80211/wme.c

@@ -21,7 +21,16 @@
 /* Default mapping in classifier to work with default
  * queue setup.
  */
-const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
+const int ieee802_1d_to_ac[8] = {
+	IEEE80211_AC_BE,
+	IEEE80211_AC_BK,
+	IEEE80211_AC_BK,
+	IEEE80211_AC_BE,
+	IEEE80211_AC_VI,
+	IEEE80211_AC_VI,
+	IEEE80211_AC_VO,
+	IEEE80211_AC_VO
+};
 
 static int wme_downgrade_ac(struct sk_buff *skb)
 {