1 files changed, 17 insertions, 0 deletions

diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index ab467261bd9d..9ace47f44a69 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -767,6 +767,23 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, u32 *dnode,
                           int *err);
 struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list);
 
+/* tipc_skb_peek(): peek and reserve first buffer in list
+ * @list: list to be peeked in
+ * Returns pointer to first buffer in list, if any
+ */
+static inline struct sk_buff *tipc_skb_peek(struct sk_buff_head *list,
+                                            spinlock_t *lock)
+{
+        struct sk_buff *skb;
+
+        spin_lock_bh(lock);
+        skb = skb_peek(list);
+        if (skb)
+                skb_get(skb);
+        spin_unlock_bh(lock);
+        return skb;
+}
+
 /* tipc_skb_peek_port(): find a destination port, ignoring all destinations
  *                       up to and including 'filter'.
  * Note: ignoring previously tried destinations minimizes the risk of