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authorJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2020-04-16 14:35:16 +0300
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2020-04-16 14:35:16 +0300
commit2b703bbda2713fd2a7d98029ea6c44f9c3159f34 (patch)
tree00aabbb35186a4541ccccf89dead04e251d0541d /net/ipv4/tcp_input.c
parentdrm/i915: HDCP: fix Ri prime check done during link check (diff)
parentLinux 5.7-rc1 (diff)
downloadwireguard-linux-2b703bbda2713fd2a7d98029ea6c44f9c3159f34.tar.xz
wireguard-linux-2b703bbda2713fd2a7d98029ea6c44f9c3159f34.zip
Merge drm/drm-next into drm-intel-next-queued
Backmerging in order to pull "topic/phy-compliance". Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 316ebdf8151d..bf4ced9273e8 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2865,7 +2865,7 @@ static void tcp_fastretrans_alert(struct sock *sk, const u32 prior_snd_una,
(*ack_flag & FLAG_LOST_RETRANS)))
return;
/* Change state if cwnd is undone or retransmits are lost */
- /* fall through */
+ fallthrough;
default:
if (tcp_is_reno(tp)) {
if (flag & FLAG_SND_UNA_ADVANCED)
@@ -6124,7 +6124,11 @@ static void tcp_rcv_synrecv_state_fastopen(struct sock *sk)
{
struct request_sock *req;
- tcp_try_undo_loss(sk, false);
+ /* If we are still handling the SYNACK RTO, see if timestamp ECR allows
+ * undo. If peer SACKs triggered fast recovery, we can't undo here.
+ */
+ if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss)
+ tcp_try_undo_loss(sk, false);
/* Reset rtx states to prevent spurious retransmits_timed_out() */
tcp_sk(sk)->retrans_stamp = 0;
@@ -6363,7 +6367,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
mptcp_incoming_options(sk, skb, &tp->rx_opt);
break;
}
- /* fall through */
+ fallthrough;
case TCP_FIN_WAIT1:
case TCP_FIN_WAIT2:
/* RFC 793 says to queue data in these states,
@@ -6378,7 +6382,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
return 1;
}
}
- /* Fall through */
+ fallthrough;
case TCP_ESTABLISHED:
tcp_data_queue(sk, skb);
queued = 1;