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-rw-r--r--net/mptcp/protocol.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index c2317919fc14..e85862352084 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -3504,7 +3504,8 @@ static void schedule_3rdack_retransmission(struct sock *ssk)
timeout += jiffies;
WARN_ON_ONCE(icsk->icsk_ack.pending & ICSK_ACK_TIMER);
- icsk->icsk_ack.pending |= ICSK_ACK_SCHED | ICSK_ACK_TIMER;
+ smp_store_release(&icsk->icsk_ack.pending,
+ icsk->icsk_ack.pending | ICSK_ACK_SCHED | ICSK_ACK_TIMER);
icsk->icsk_ack.timeout = timeout;
sk_reset_timer(ssk, &icsk->icsk_delack_timer, timeout);
}