appletalk: Use frag list abstraction interfaces.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index d6a9243641afaa82cbf9894935a0ddf9acb7a288..b603cbacdc58eccf171c84599a9c2bfd426f74f4 100644 (file)
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -939,6 +939,7 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
                                   int len, unsigned long sum)
 {
        int start = skb_headlen(skb);
+       struct sk_buff *frag_iter;
        int i, copy;
 
        /* checksum stuff in header space */
@@ -977,26 +978,22 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
                start = end;
        }
 
-       if (skb_shinfo(skb)->frag_list) {
-               struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
-               for (; list; list = list->next) {
-                       int end;
+       skb_walk_frags(skb, frag_iter) {
+               int end;
 
-                       WARN_ON(start > offset + len);
+               WARN_ON(start > offset + len);
 
-                       end = start + list->len;
-                       if ((copy = end - offset) > 0) {
-                               if (copy > len)
-                                       copy = len;
-                               sum = atalk_sum_skb(list, offset - start,
-                                                   copy, sum);
-                               if ((len -= copy) == 0)
-                                       return sum;
-                               offset += copy;
-                       }
-                       start = end;
+               end = start + frag_iter->len;
+               if ((copy = end - offset) > 0) {
+                       if (copy > len)
+                               copy = len;
+                       sum = atalk_sum_skb(frag_iter, offset - start,
+                                           copy, sum);
+                       if ((len -= copy) == 0)
+                               return sum;
+                       offset += copy;
                }
+               start = end;
        }
 
        BUG_ON(len > 0);