anchao commented on code in PR #7916:
URL: https://github.com/apache/nuttx/pull/7916#discussion_r1051623857
##########
net/tcp/tcp_callback.c:
##########
@@ -258,12 +258,15 @@ uint16_t tcp_datahandler(FAR struct net_driver_s *dev,
iob_concat(conn->readahead, iob);
}
-#ifdef CONFIG_NET_TCP_RECV_CONTIG
+#ifdef CONFIG_NET_TCP_RECV_PACK
/* Merge an iob chain into a continuous space, thereby reducing iob
* consumption.
*/
- conn->readahead = iob_contig(conn->readahead);
+ if (conn->readahead->io_flink != NULL)
Review Comment:
If it is not chain and does not need pack, reduce copy once
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