Merge tag 'powerpc-4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...

[firefly-linux-kernel-4.4.55.git] / net / tipc / msg.h

diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 2f1563b47e24f78373bb9d1b57b3c8ec426f5f91..a82c5848d4bc22129bd1e6ba7f677795febdc9e9 100644 (file)
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -110,7 +110,6 @@ struct tipc_skb_cb {
        struct sk_buff *tail;
        bool validated;
        bool wakeup_pending;
-       bool bundling;
        u16 chain_sz;
        u16 chain_imp;
 };
@@ -559,15 +558,6 @@ static inline void msg_set_node_capabilities(struct tipc_msg *m, u32 n)
        msg_set_bits(m, 1, 15, 0x1fff, n);
 }
 
-static inline bool msg_dup(struct tipc_msg *m)
-{
-       if (likely(msg_user(m) != TUNNEL_PROTOCOL))
-               return false;
-       if (msg_type(m) != SYNCH_MSG)
-               return false;
-       return true;
-}
-
 /*
  * Word 2
  */
@@ -621,12 +611,12 @@ static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n)
 }
 
 
-static inline u32 msg_next_sent(struct tipc_msg *m)
+static inline u16 msg_next_sent(struct tipc_msg *m)
 {
        return msg_bits(m, 4, 0, 0xffff);
 }
 
-static inline void msg_set_next_sent(struct tipc_msg *m, u32 n)
+static inline void msg_set_next_sent(struct tipc_msg *m, u16 n)
 {
        msg_set_bits(m, 4, 0, 0xffff, n);
 }
@@ -727,12 +717,12 @@ static inline char *msg_media_addr(struct tipc_msg *m)
 /*
  * Word 9
  */
-static inline u32 msg_msgcnt(struct tipc_msg *m)
+static inline u16 msg_msgcnt(struct tipc_msg *m)
 {
        return msg_bits(m, 9, 16, 0xffff);
 }
 
-static inline void msg_set_msgcnt(struct tipc_msg *m, u32 n)
+static inline void msg_set_msgcnt(struct tipc_msg *m, u16 n)
 {
        msg_set_bits(m, 9, 16, 0xffff, n);
 }
@@ -767,26 +757,25 @@ static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n)
        msg_set_bits(m, 9, 0, 0xffff, n);
 }
 
-static inline bool msg_is_traffic(struct tipc_msg *m)
+static inline bool msg_peer_link_is_up(struct tipc_msg *m)
 {
        if (likely(msg_user(m) != LINK_PROTOCOL))
                return true;
-       if ((msg_type(m) == RESET_MSG) || (msg_type(m) == ACTIVATE_MSG))
-               return false;
-       return true;
+       if (msg_type(m) == STATE_MSG)
+               return true;
+       return false;
 }
 
-static inline bool msg_peer_is_up(struct tipc_msg *m)
+static inline bool msg_peer_node_is_up(struct tipc_msg *m)
 {
-       if (likely(msg_is_traffic(m)))
-               return false;
+       if (msg_peer_link_is_up(m))
+               return true;
        return msg_redundant_link(m);
 }
 
 struct sk_buff *tipc_buf_acquire(u32 size);
 bool tipc_msg_validate(struct sk_buff *skb);
-bool tipc_msg_reverse(u32 own_addr, struct sk_buff *buf, u32 *dnode,
-                     int err);
+bool tipc_msg_reverse(u32 own_addr, struct sk_buff **skb, int err);
 void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type,
                   u32 hsize, u32 destnode);
 struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,
@@ -799,8 +788,7 @@ bool tipc_msg_make_bundle(struct sk_buff **skb, struct tipc_msg *msg,
 bool tipc_msg_extract(struct sk_buff *skb, struct sk_buff **iskb, int *pos);
 int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m,
                   int offset, int dsz, int mtu, struct sk_buff_head *list);
-bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, u32 *dnode,
-                         int *err);
+bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err);
 struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list);
 
 static inline u16 buf_seqno(struct sk_buff *skb)
@@ -874,28 +862,6 @@ static inline struct sk_buff *tipc_skb_dequeue(struct sk_buff_head *list,
        return skb;
 }
 
-/* tipc_skb_queue_tail(): add buffer to tail of list;
- * @list: list to be appended to
- * @skb: buffer to append. Always appended
- * @dport: the destination port of the buffer
- * returns true if dport differs from previous destination
- */
-static inline bool tipc_skb_queue_tail(struct sk_buff_head *list,
-                                      struct sk_buff *skb, u32 dport)
-{
-       struct sk_buff *_skb = NULL;
-       bool rv = false;
-
-       spin_lock_bh(&list->lock);
-       _skb = skb_peek_tail(list);
-       if (!_skb || (msg_destport(buf_msg(_skb)) != dport) ||
-           (skb_queue_len(list) > 32))
-               rv = true;
-       __skb_queue_tail(list, skb);
-       spin_unlock_bh(&list->lock);
-       return rv;
-}
-
 /* tipc_skb_queue_sorted(); sort pkt into list according to sequence number
  * @list: list to be appended to
  * @skb: buffer to add
@@ -928,4 +894,33 @@ static inline bool __tipc_skb_queue_sorted(struct sk_buff_head *list,
        return false;
 }
 
+/* tipc_skb_queue_splice_tail - append an skb list to lock protected list
+ * @list: the new list to append. Not lock protected
+ * @head: target list. Lock protected.
+ */
+static inline void tipc_skb_queue_splice_tail(struct sk_buff_head *list,
+                                             struct sk_buff_head *head)
+{
+       spin_lock_bh(&head->lock);
+       skb_queue_splice_tail(list, head);
+       spin_unlock_bh(&head->lock);
+}
+
+/* tipc_skb_queue_splice_tail_init - merge two lock protected skb lists
+ * @list: the new list to add. Lock protected. Will be reinitialized
+ * @head: target list. Lock protected.
+ */
+static inline void tipc_skb_queue_splice_tail_init(struct sk_buff_head *list,
+                                                  struct sk_buff_head *head)
+{
+       struct sk_buff_head tmp;
+
+       __skb_queue_head_init(&tmp);
+
+       spin_lock_bh(&list->lock);
+       skb_queue_splice_tail_init(list, &tmp);
+       spin_unlock_bh(&list->lock);
+       tipc_skb_queue_splice_tail(&tmp, head);
+}
+
 #endif