phonet: Use frag list abstraction interfaces.

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

net/phonet/pep-gprs.c

@@ -115,10 +115,10 @@ static int gprs_recv(struct gprs_dev *gp, struct sk_buff *skb)
 		rskb->truesize += rskb->len;
 
 		/* Avoid nested fragments */
-		for (fs = skb_shinfo(skb)->frag_list; fs; fs = fs->next)
+		skb_walk_frags(skb, fs)
 			flen += fs->len;
 		skb->next = skb_shinfo(skb)->frag_list;
-		skb_shinfo(skb)->frag_list = NULL;
+		skb_frag_list_init(skb);
 		skb->len -= flen;
 		skb->data_len -= flen;
 		skb->truesize -= flen;

net/phonet/pep.c

@@ -940,10 +940,10 @@ int pep_write(struct sock *sk, struct sk_buff *skb)
 	rskb->truesize += rskb->len;
 
 	/* Avoid nested fragments */
-	for (fs = skb_shinfo(skb)->frag_list; fs; fs = fs->next)
+	skb_walk_frags(skb, fs)
 		flen += fs->len;
 	skb->next = skb_shinfo(skb)->frag_list;
-	skb_shinfo(skb)->frag_list = NULL;
+	skb_frag_list_init(skb);
 	skb->len -= flen;
 	skb->data_len -= flen;
 	skb->truesize -= flen;