1 files changed, 13 insertions, 17 deletions

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 333484537600..070e8a68cfc6 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -31,9 +31,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct net_bridge_mdb_entry *mdst;
 	struct br_cpu_netstats *brstats = this_cpu_ptr(br->stats);
 
+	rcu_read_lock();
 #ifdef CONFIG_BRIDGE_NETFILTER
 	if (skb->nf_bridge && (skb->nf_bridge->mask & BRNF_BRIDGED_DNAT)) {
 		br_nf_pre_routing_finish_bridge_slow(skb);
+		rcu_read_unlock();
 		return NETDEV_TX_OK;
 	}
 #endif
@@ -48,7 +50,6 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 	skb_reset_mac_header(skb);
 	skb_pull(skb, ETH_HLEN);
 
-	rcu_read_lock();
 	if (is_broadcast_ether_addr(dest))
 		br_flood_deliver(br, skb);
 	else if (is_multicast_ether_addr(dest)) {
@@ -206,24 +207,23 @@ static void br_poll_controller(struct net_device *br_dev)
 static void br_netpoll_cleanup(struct net_device *dev)
 {
 	struct net_bridge *br = netdev_priv(dev);
-	struct net_bridge_port *p, *n;
+	struct net_bridge_port *p;
 
-	list_for_each_entry_safe(p, n, &br->port_list, list) {
+	list_for_each_entry(p, &br->port_list, list)
 		br_netpoll_disable(p);
-	}
 }
 
-static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni)
+static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni,
+			    gfp_t gfp)
 {
 	struct net_bridge *br = netdev_priv(dev);
-	struct net_bridge_port *p, *n;
+	struct net_bridge_port *p;
 	int err = 0;
 
-	list_for_each_entry_safe(p, n, &br->port_list, list) {
+	list_for_each_entry(p, &br->port_list, list) {
 		if (!p->dev)
 			continue;
-
-		err = br_netpoll_enable(p);
+		err = br_netpoll_enable(p, gfp);
 		if (err)
 			goto fail;
 	}
@@ -236,17 +236,17 @@ fail:
 	goto out;
 }
 
-int br_netpoll_enable(struct net_bridge_port *p)
+int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp)
 {
 	struct netpoll *np;
 	int err = 0;
 
-	np = kzalloc(sizeof(*p->np), GFP_KERNEL);
+	np = kzalloc(sizeof(*p->np), gfp);
 	err = -ENOMEM;
 	if (!np)
 		goto out;
 
-	err = __netpoll_setup(np, p->dev);
+	err = __netpoll_setup(np, p->dev, gfp);
 	if (err) {
 		kfree(np);
 		goto out;
@@ -267,11 +267,7 @@ void br_netpoll_disable(struct net_bridge_port *p)
 
 	p->np = NULL;
 
-	/* Wait for transmitting packets to finish before freeing. */
-	synchronize_rcu_bh();
-
-	__netpoll_cleanup(np);
-	kfree(np);
+	__netpoll_free_rcu(np);
 }
 
 #endif