diff options
| -rw-r--r-- | net/dccp/ccids/ccid3.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 2745d835f03..62c304200ed 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -264,13 +264,13 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, BUG_ON(hctx == NULL); - /* Check if pure ACK or Terminating*/ /* - * XXX: We only call this function for DATA and DATAACK, on, these - * packets can have zero length, but why the comment about "pure ACK"? + * This function is called only for Data and DataAck packets. Sending + * zero-sized Data(Ack)s is theoretically possible, but for congestion + * control this case is pathological - ignore it. */ if (unlikely(len == 0)) - return -ENOTCONN; + return -EBADMSG; /* See if last packet allocated was not sent */ new_packet = dccp_tx_hist_head(&hctx->ccid3hctx_hist); @@ -387,11 +387,7 @@ static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, int len) switch (hctx->ccid3hctx_state) { case TFRC_SSTATE_NO_SENT: - /* if first wasn't pure ack */ - if (len != 0) - DCCP_CRIT("%s, First packet sent is noted " - "as a data packet", dccp_role(sk)); - return; + /* fall through */ case TFRC_SSTATE_NO_FBACK: /* t_nom, t_ipi, delta do not change until feedback arrives */ return; |