appletalk: Use frag list abstraction interfaces.

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

1 files changed, 14 insertions, 17 deletions

diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index d6a9243641af..b603cbacdc58 100644
--- 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);