[PATCH] remove dead skb_iter* functions

[Christoph Hellwig <hch@xxxxxx>]

Signed-off-by: Christoph Hellwig <hch@xxxxxx>



--- 1.56/include/linux/skbuff.h 2004-10-05 23:51:01 +02:00
+++ edited/include/linux/skbuff.h       2004-10-30 21:04:33 +02:00
@@ -592,7 +592,6 @@
 /*
  *     Insert a packet on a list.
  */
-extern void        skb_insert(struct sk_buff *old, struct sk_buff *newsk);
 static inline void __skb_insert(struct sk_buff *newsk,
                                struct sk_buff *prev, struct sk_buff *next,
                                struct sk_buff_head *list)
@@ -1120,22 +1119,6 @@
 
 extern void skb_init(void);
 extern void skb_add_mtu(int mtu);
-
-struct skb_iter {
-       /* Iteration functions set these */
-       unsigned char *data;
-       unsigned int len;
-
-       /* Private to iteration */
-       unsigned int nextfrag;
-       struct sk_buff *fraglist;
-};
-
-/* Keep iterating until skb_iter_next returns false. */
-extern void skb_iter_first(const struct sk_buff *skb, struct skb_iter *i);
-extern int skb_iter_next(const struct sk_buff *skb, struct skb_iter *i);
-/* Call this if aborting loop before !skb_iter_next */
-extern void skb_iter_abort(const struct sk_buff *skb, struct skb_iter *i);
 
 #ifdef CONFIG_NETFILTER
 static inline void nf_conntrack_put(struct nf_conntrack *nfct)
--- 1.39/net/core/skbuff.c      2004-10-20 06:56:24 +02:00
+++ edited/net/core/skbuff.c    2004-10-30 21:04:33 +02:00
@@ -929,72 +929,7 @@
        return -EFAULT;
 }
 
-/* Keep iterating until skb_iter_next returns false. */
-void skb_iter_first(const struct sk_buff *skb, struct skb_iter *i)
-{
-       i->len = skb_headlen(skb);
-       i->data = (unsigned char *)skb->data;
-       i->nextfrag = 0;
-       i->fraglist = NULL;
-}
-
-int skb_iter_next(const struct sk_buff *skb, struct skb_iter *i)
-{
-       /* Unmap previous, if not head fragment. */
-       if (i->nextfrag)
-               kunmap_skb_frag(i->data);
-
-       if (i->fraglist) {
-       fraglist:
-               /* We're iterating through fraglist. */
-               if (i->nextfrag < skb_shinfo(i->fraglist)->nr_frags) {
-                       i->data = kmap_skb_frag(&skb_shinfo(i->fraglist)
-                                               ->frags[i->nextfrag]);
-                       i->len = skb_shinfo(i->fraglist)->frags[i->nextfrag]
-                               .size;
-                       i->nextfrag++;
-                       return 1;
-               }
-               /* Fragments with fragments?  Too hard! */
-               BUG_ON(skb_shinfo(i->fraglist)->frag_list);
-               i->fraglist = i->fraglist->next;
-               if (!i->fraglist)
-                       goto end;
-
-               i->len = skb_headlen(i->fraglist);
-               i->data = i->fraglist->data;
-               i->nextfrag = 0;
-               return 1;
-       }
-
-       if (i->nextfrag < skb_shinfo(skb)->nr_frags) {
-               i->data = kmap_skb_frag(&skb_shinfo(skb)->frags[i->nextfrag]);
-               i->len = skb_shinfo(skb)->frags[i->nextfrag].size;
-               i->nextfrag++;
-               return 1;
-       }
-
-       i->fraglist = skb_shinfo(skb)->frag_list;
-       if (i->fraglist)
-               goto fraglist;
-
-end:
-       /* Bug trap for callers */
-       i->data = NULL;
-       return 0;
-}
-
-void skb_iter_abort(const struct sk_buff *skb, struct skb_iter *i)
-{
-       /* Unmap previous, if not head fragment. */
-       if (i->data && i->nextfrag)
-               kunmap_skb_frag(i->data);
-       /* Bug trap for callers */
-       i->data = NULL;
-}
-
 /* Checksum skb data. */
-
 unsigned int skb_checksum(const struct sk_buff *skb, int offset,
                          int len, unsigned int csum)
 {
@@ -1318,25 +1253,6 @@
 }
 
 
-/**
- *     skb_insert      -       insert a buffer
- *     @old: buffer to insert before
- *     @newsk: buffer to insert
- *
- *     Place a packet before a given packet in a list. The list locks are taken
- *     and this function is atomic with respect to other list locked calls
- *     A buffer cannot be placed on two lists at the same time.
- */
-
-void skb_insert(struct sk_buff *old, struct sk_buff *newsk)
-{
-       unsigned long flags;
-
-       spin_lock_irqsave(&old->list->lock, flags);
-       __skb_insert(newsk, old->prev, old, old->list);
-       spin_unlock_irqrestore(&old->list->lock, flags);
-}
-
 #if 0
 /*
  *     Tune the memory allocator for a new MTU size.
@@ -1444,7 +1360,6 @@
 EXPORT_SYMBOL(pskb_expand_head);
 EXPORT_SYMBOL(skb_checksum);
 EXPORT_SYMBOL(skb_clone);
-EXPORT_SYMBOL(skb_clone_fraglist);
 EXPORT_SYMBOL(skb_copy);
 EXPORT_SYMBOL(skb_copy_and_csum_bits);
 EXPORT_SYMBOL(skb_copy_and_csum_dev);
@@ -1456,13 +1371,8 @@
 EXPORT_SYMBOL(skb_under_panic);
 EXPORT_SYMBOL(skb_dequeue);
 EXPORT_SYMBOL(skb_dequeue_tail);
-EXPORT_SYMBOL(skb_insert);
 EXPORT_SYMBOL(skb_queue_purge);
 EXPORT_SYMBOL(skb_queue_head);
 EXPORT_SYMBOL(skb_queue_tail);
 EXPORT_SYMBOL(skb_unlink);
 EXPORT_SYMBOL(skb_append);
-EXPORT_SYMBOL(skb_split);
-EXPORT_SYMBOL(skb_iter_first);
-EXPORT_SYMBOL(skb_iter_next);
-EXPORT_SYMBOL(skb_iter_abort);