skb_rb_next
skb = skb_rb_next(skb))
skb = skb_rb_next(skb))
for (; tmp = skb ? skb_rb_next(skb) : NULL, (skb != NULL); \
tcp_sk(sk)->highest_sack = skb_rb_next(skb);
if (skb && !skb_rb_next(skb)) {
skb = skb_rb_next(prev);
next = skb_rb_next(skb);
while ((skb1 = skb_rb_next(skb)) != NULL) {
return skb_rb_next(skb);
skb = skb_rb_next(skb);
skb = skb_rb_next(skb);
struct sk_buff *next_skb = skb_rb_next(skb);
while ((skb1 = skb_rb_next(skb)) != NULL) {