mac80211: reduce max number of queues

No hw/driver actually supports more than four queues right now,
and we allocate a number of things per queue which means we
waste a bit of memory. Reduce the maximum number to four to
accurately reflect what we do (and need for QoS). Even if we
had hardware supporting more queues we couldn't take advantage
of that right now anyway.

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

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 3bfc6c6..a38a82c 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -97,7 +97,7 @@ struct ieee80211_ht_bss_info {
  *     for A-MPDU operation.
  */
 enum ieee80211_max_queues {
-       IEEE80211_MAX_QUEUES =          16,
+       IEEE80211_MAX_QUEUES =          4,
        IEEE80211_MAX_AMPDU_QUEUES =    16,
 };