mac80211: use multi-queue master netdevice

This patch updates mac80211 and drivers to be multi-queue aware and
use that instead of the internal queue mapping. Also does a number
of cleanups in various pieces of the code that fall out and reduces
internal mac80211 state size.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c
index 4427bc9..b7172a1 100644
--- a/drivers/net/wireless/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl8180_dev.c
@@ -246,7 +246,7 @@
 	u16 plcp_len = 0;
 	__le16 rts_duration = 0;
 
-	prio = info->queue;
+	prio = skb_get_queue_mapping(skb);
 	ring = &priv->tx_ring[prio];
 
 	mapping = pci_map_single(priv->pdev, skb->data,
@@ -298,7 +298,7 @@
 	entry->flags = cpu_to_le32(tx_flags);
 	__skb_queue_tail(&ring->queue, skb);
 	if (ring->entries - skb_queue_len(&ring->queue) < 2)
-		ieee80211_stop_queue(dev, info->queue);
+		ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4)));