netdev: Allocate multiple queues for TX.

alloc_netdev_mq() now allocates an array of netdev_queue
structures for TX, based upon the queue_count argument.

Furthermore, all accesses to the TX queues are now vectored
through the netdev_get_tx_queue() and netdev_for_each_tx_queue()
interfaces.  This makes it easy to grep the tree for all
things that want to get to a TX queue of a net device.

Problem spots which are not really multiqueue aware yet, and
only work with one queue, can easily be spotted by grepping
for all netdev_get_tx_queue() calls that pass in a zero index.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index af0056e7e5b3..b486e634f4fe 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -621,7 +621,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 
         /* ensure that TX flow won't interrupt us
          * until the end of the call to requeue function */
-        txq = &local->mdev->tx_queue;
+        txq = netdev_get_tx_queue(local->mdev, 0);
         spin_lock_bh(&txq->lock);
 
         /* create a new queue for this aggregation */
@@ -862,7 +862,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 
         /* avoid ordering issues: we are the only one that can modify
          * the content of the qdiscs */
-        txq = &local->mdev->tx_queue;
+        txq = netdev_get_tx_queue(local->mdev, 0);
         spin_lock_bh(&txq->lock);
         /* remove the queue for this aggregation */
         ieee80211_ht_agg_queue_remove(local, sta, tid, 1);