1 files changed, 17 insertions, 7 deletions

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 2524267210d..e9e23121586 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -14,6 +14,7 @@
 
 struct netpoll {
 	struct net_device *dev;
+	struct net_device *real_dev;
 	char dev_name[IFNAMSIZ];
 	const char *name;
 	void (*rx_hook)(struct netpoll *, int, char *, int);
@@ -21,18 +22,26 @@ struct netpoll {
 	__be32 local_ip, remote_ip;
 	u16 local_port, remote_port;
 	u8 remote_mac[ETH_ALEN];
+
+	struct list_head rx; /* rx_np list element */
 };
 
 struct netpoll_info {
 	atomic_t refcnt;
+
 	int rx_flags;
 	spinlock_t rx_lock;
-	struct netpoll *rx_np; /* netpoll that registered an rx_hook */
+	struct list_head rx_np; /* netpolls that registered an rx_hook */
+
 	struct sk_buff_head arp_tx; /* list of arp requests to reply to */
 	struct sk_buff_head txq;
+
 	struct delayed_work tx_work;
+
+	struct netpoll *netpoll;
 };
 
+void netpoll_poll_dev(struct net_device *dev);
 void netpoll_poll(struct netpoll *np);
 void netpoll_send_udp(struct netpoll *np, const char *msg, int len);
 void netpoll_print_options(struct netpoll *np);
@@ -42,22 +51,23 @@ int netpoll_trap(void);
 void netpoll_set_trap(int trap);
 void netpoll_cleanup(struct netpoll *np);
 int __netpoll_rx(struct sk_buff *skb);
+void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb);
 
 
 #ifdef CONFIG_NETPOLL
-static inline int netpoll_rx(struct sk_buff *skb)
+static inline bool netpoll_rx(struct sk_buff *skb)
 {
 	struct netpoll_info *npinfo = skb->dev->npinfo;
 	unsigned long flags;
-	int ret = 0;
+	bool ret = false;
 
-	if (!npinfo || (!npinfo->rx_np && !npinfo->rx_flags))
-		return 0;
+	if (!npinfo || (list_empty(&npinfo->rx_np) && !npinfo->rx_flags))
+		return false;
 
 	spin_lock_irqsave(&npinfo->rx_lock, flags);
 	/* check rx_flags again with the lock held */
 	if (npinfo->rx_flags && __netpoll_rx(skb))
-		ret = 1;
+		ret = true;
 	spin_unlock_irqrestore(&npinfo->rx_lock, flags);
 
 	return ret;
@@ -67,7 +77,7 @@ static inline int netpoll_rx_on(struct sk_buff *skb)
 {
 	struct netpoll_info *npinfo = skb->dev->npinfo;
 
-	return npinfo && (npinfo->rx_np || npinfo->rx_flags);
+	return npinfo && (!list_empty(&npinfo->rx_np) || npinfo->rx_flags);
 }
 
 static inline int netpoll_receive_skb(struct sk_buff *skb)