[SKB]: __skb_queue_after(prev) = __skb_insert(prev, prev->next)

By reordering, __skb_queue_after() is expressed in terms of __skb_insert().

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index c211620..bb107ab 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -663,11 +663,21 @@ static inline void skb_queue_head_init_class(struct sk_buff_head *list,
 }
 
 /*
- *     Insert an sk_buff at the start of a list.
+ *     Insert an sk_buff on a list.
  *
  *     The "__skb_xxxx()" functions are the non-atomic ones that
  *     can only be called with interrupts disabled.
  */
+extern void        skb_insert(struct sk_buff *old, struct sk_buff *newsk, struct sk_buff_head *list);
+static inline void __skb_insert(struct sk_buff *newsk,
+                               struct sk_buff *prev, struct sk_buff *next,
+                               struct sk_buff_head *list)
+{
+       newsk->next = next;
+       newsk->prev = prev;
+       next->prev  = prev->next = newsk;
+       list->qlen++;
+}
 
 /**
  *     __skb_queue_after - queue a buffer at the list head
@@ -684,13 +694,7 @@ static inline void __skb_queue_after(struct sk_buff_head *list,
                                     struct sk_buff *prev,
                                     struct sk_buff *newsk)
 {
-       struct sk_buff *next;
-       list->qlen++;
-
-       next = prev->next;
-       newsk->next = next;
-       newsk->prev = prev;
-       next->prev  = prev->next = newsk;
+       __skb_insert(newsk, prev, prev->next, list);
 }
 
 /**
@@ -734,20 +738,6 @@ static inline void __skb_queue_tail(struct sk_buff_head *list,
        next->prev  = prev->next = newsk;
 }
 
-/*
- *     Insert a packet on a list.
- */
-extern void        skb_insert(struct sk_buff *old, struct sk_buff *newsk, struct sk_buff_head *list);
-static inline void __skb_insert(struct sk_buff *newsk,
-                               struct sk_buff *prev, struct sk_buff *next,
-                               struct sk_buff_head *list)
-{
-       newsk->next = next;
-       newsk->prev = prev;
-       next->prev  = prev->next = newsk;
-       list->qlen++;
-}
-
 /*
  *     Place a packet after a given packet in a list.
  */