net: Avoid extra wakeups of threads blocked in wait_for_packet()

[safe/jmp/linux-2.6] / include / linux / netpoll.h

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index e3d7959..2524267 100644 (file)
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -18,7 +18,7 @@ struct netpoll {
        const char *name;
        void (*rx_hook)(struct netpoll *, int, char *, int);
 
-       u32 local_ip, remote_ip;
+       __be32 local_ip, remote_ip;
        u16 local_port, remote_port;
        u8 remote_mac[ETH_ALEN];
 };
@@ -63,6 +63,13 @@ static inline int netpoll_rx(struct sk_buff *skb)
        return ret;
 }
 
+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);
+}
+
 static inline int netpoll_receive_skb(struct sk_buff *skb)
 {
        if (!list_empty(&skb->dev->napi_list))
@@ -94,16 +101,15 @@ static inline void netpoll_poll_unlock(void *have)
        rcu_read_unlock();
 }
 
-static inline void netpoll_netdev_init(struct net_device *dev)
-{
-       INIT_LIST_HEAD(&dev->napi_list);
-}
-
 #else
 static inline int netpoll_rx(struct sk_buff *skb)
 {
        return 0;
 }
+static inline int netpoll_rx_on(struct sk_buff *skb)
+{
+       return 0;
+}
 static inline int netpoll_receive_skb(struct sk_buff *skb)
 {
        return 0;