1 files changed, 42 insertions, 14 deletions

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 29930b71a9aa..20250d963d72 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -25,8 +25,6 @@ struct netpoll {
 
 struct netpoll_info {
         atomic_t refcnt;
-        spinlock_t poll_lock;
-        int poll_owner;
         int rx_flags;
         spinlock_t rx_lock;
         struct netpoll *rx_np; /* netpoll that registered an rx_hook */
@@ -37,6 +35,7 @@ struct netpoll_info {
 
 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);
 int netpoll_parse_options(struct netpoll *np, char *opt);
 int netpoll_setup(struct netpoll *np);
 int netpoll_trap(void);
@@ -64,32 +63,61 @@ static inline int netpoll_rx(struct sk_buff *skb)
         return ret;
 }
 
-static inline void *netpoll_poll_lock(struct net_device *dev)
+static inline int netpoll_receive_skb(struct sk_buff *skb)
 {
+        if (!list_empty(&skb->dev->napi_list))
+                return netpoll_rx(skb);
+        return 0;
+}
+
+static inline void *netpoll_poll_lock(struct napi_struct *napi)
+{
+        struct net_device *dev = napi->dev;
+
         rcu_read_lock(); /* deal with race on ->npinfo */
-        if (dev->npinfo) {
-                spin_lock(&dev->npinfo->poll_lock);
-                dev->npinfo->poll_owner = smp_processor_id();
-                return dev->npinfo;
+        if (dev && dev->npinfo) {
+                spin_lock(&napi->poll_lock);
+                napi->poll_owner = smp_processor_id();
+                return napi;
         }
         return NULL;
 }
 
 static inline void netpoll_poll_unlock(void *have)
 {
-        struct netpoll_info *npi = have;
+        struct napi_struct *napi = have;
 
-        if (npi) {
-                npi->poll_owner = -1;
-                spin_unlock(&npi->poll_lock);
+        if (napi) {
+                napi->poll_owner = -1;
+                spin_unlock(&napi->poll_lock);
         }
         rcu_read_unlock();
 }
 
+static inline void netpoll_netdev_init(struct net_device *dev)
+{
+        INIT_LIST_HEAD(&dev->napi_list);
+}
+
 #else
-#define netpoll_rx(a) 0
-#define netpoll_poll_lock(a) NULL
-#define netpoll_poll_unlock(a)
+static inline int netpoll_rx(struct sk_buff *skb)
+{
+        return 0;
+}
+static inline int netpoll_receive_skb(struct sk_buff *skb)
+{
+        return 0;
+}
+static inline void *netpoll_poll_lock(struct napi_struct *napi)
+{
+        return NULL;
+}
+static inline void netpoll_poll_unlock(void *have)
+{
+}
+static inline void netpoll_netdev_init(struct net_device *dev)
+{
+}
 #endif
 
 #endif