anchao commented on a change in pull request #4069:
URL: https://github.com/apache/incubator-nuttx/pull/4069#discussion_r663831124
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File path: net/udp/udp_callback.c
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@@ -83,6 +83,14 @@ static uint16_t udp_datahandler(FAR struct net_driver_s *dev,
FAR void *src_addr;
uint8_t src_addr_size;
+#if CONFIG_NET_RECV_BUFSIZE > 0
+ while (iob_get_queue_size(&conn->readahead) > conn->rcvbufs)
+ {
+ iob = iob_remove_queue(&conn->readahead);
+ iob_free_chain(iob, IOBUSER_NET_UDP_READAHEAD);
+ }
+#endif
Review comment:
Yes, I can't find a suitable reference except Linux. Do you have any
suggestions?
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