diff options
Diffstat (limited to 'net/mptcp/options.c')
| -rw-r--r-- | net/mptcp/options.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c index 7adcbc1f7d49..bebb759f470e 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -971,9 +971,11 @@ static void ack_update_msk(struct mptcp_sock *msk, old_snd_una = msk->snd_una; new_snd_una = mptcp_expand_seq(old_snd_una, mp_opt->data_ack, mp_opt->ack64); - /* ACK for data not even sent yet? Ignore. */ - if (after64(new_snd_una, snd_nxt)) - new_snd_una = old_snd_una; + /* ACK for data not even sent yet and even above recovery bound? Ignore.*/ + if (unlikely(after64(new_snd_una, snd_nxt))) { + if (!msk->recovery || after64(new_snd_una, msk->recovery_snd_nxt)) + new_snd_una = old_snd_una; + } new_wnd_end = new_snd_una + tcp_sk(ssk)->snd_wnd; |