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, 4 insertions, 2 deletions

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 980001c2cf96..72745ce588c6 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -285,7 +285,9 @@ static struct lock_class_key macvlan_netdev_xmit_lock_key;
 #define MACVLAN_STATE_MASK \
         ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT))
 
-static void macvlan_set_lockdep_class_one(struct netdev_queue *txq)
+static void macvlan_set_lockdep_class_one(struct net_device *dev,
+                                          struct netdev_queue *txq,
+                                          void *_unused)
 {
         lockdep_set_class(&txq->_xmit_lock,
                           &macvlan_netdev_xmit_lock_key);
@@ -293,7 +295,7 @@ static void macvlan_set_lockdep_class_one(struct netdev_queue *txq)
 
 static void macvlan_set_lockdep_class(struct net_device *dev)
 {
-        macvlan_set_lockdep_class_one(&dev->tx_queue);
+        netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL);
 }
 
 static int macvlan_init(struct net_device *dev)