net: Simplify RX queue allocation

This patch move RX queue allocation to alloc_netdev_mq and freeing of
the queues to free_netdev (symmetric to TX queue allocation).  Each
kobject RX queue takes a reference to the queue's device so that the
device can't be freed before all the kobjects have been released-- this
obviates the need for reference counts specific to RX queues.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6e4cfbc53d4c..fccb11f879e5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -592,8 +592,7 @@ struct netdev_rx_queue {
         struct rps_map __rcu            *rps_map;
         struct rps_dev_flow_table __rcu *rps_flow_table;
         struct kobject                  kobj;
-        struct netdev_rx_queue          *first;
-        atomic_t                        count;
+        struct net_device               *dev;
 } ____cacheline_aligned_in_smp;
 #endif /* CONFIG_RPS */