net/mptcp/protocol.c

214 	struct sk_buff *skb1;
262 		skb1 = rb_to_skb(parent);
263 		if (before64(seq, MPTCP_SKB_CB(skb1)->map_seq)) {
267 		if (before64(seq, MPTCP_SKB_CB(skb1)->end_seq)) {
268 			if (!after64(end_seq, MPTCP_SKB_CB(skb1)->end_seq)) {
274 			if (after64(seq, MPTCP_SKB_CB(skb1)->map_seq)) {
277 				 *  |     skb1    |
281 				/* skb's seq == skb1's seq and skb covers skb1.
282 				 * Replace skb1 with skb.
284 				rb_replace_node(&skb1->rbnode, &skb->rbnode,
286 				mptcp_drop(sk, skb1);
290 		} else if (mptcp_ooo_try_coalesce(msk, skb1, skb)) {
304 	while ((skb1 = skb_rb_next(skb)) != NULL) {
305 		if (before64(end_seq, MPTCP_SKB_CB(skb1)->end_seq))
307 		rb_erase(&skb1->rbnode, &msk->out_of_order_queue);
308 		mptcp_drop(sk, skb1);
312 	if (!skb1)