diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index 16f1ed1f6b1b..4409bdb70fe9 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -144,7 +144,7 @@ struct tipc_tfm {
  * @rcu: struct rcu_head
  * @key: the aead key
  * @gen: the key's generation
- * @seqno: the key seqno (cluster scope)
+ * @seqno: the per-key TX nonce counter
  * @refcnt: the key reference counter
  */
 struct tipc_aead {
@@ -190,7 +190,6 @@ struct tipc_crypto_stats {
  * @rekeying_intv: rekeying interval (in minutes)
  * @stats: the crypto statistics
  * @name: the crypto name
- * @sndnxt: the per-peer sndnxt (TX)
  * @timer1: general timer 1 (jiffies)
  * @timer2: general timer 2 (jiffies)
  * @working: the crypto is working or not
@@ -219,7 +218,6 @@ struct tipc_crypto {
 	struct tipc_crypto_stats __percpu *stats;
 	char name[48];
 
-	atomic64_t sndnxt ____cacheline_aligned;
 	unsigned long timer1;
 	unsigned long timer2;
 	union {
@@ -1051,14 +1049,11 @@ static int tipc_ehdr_build(struct net *net, struct tipc_aead *aead,
 	WARN_ON(skb_headroom(skb) < ehsz);
 	ehdr = (struct tipc_ehdr *)skb_push(skb, ehsz);
 
-	/* Obtain a seqno first:
-	 * Use the key seqno (= cluster wise) if dest is unknown or we're in
-	 * cluster key mode, otherwise it's better for a per-peer seqno!
+	/*
+	 * Keep the nonce unique for the lifetime of the TX key,
+	 * including key state changes and peer reconnection.
 	 */
-	if (!__rx || aead->mode == CLUSTER_KEY)
-		seqno = atomic64_inc_return(&aead->seqno);
-	else
-		seqno = atomic64_inc_return(&__rx->sndnxt);
+	seqno = atomic64_inc_return(&aead->seqno);
 
 	/* Revoke the key if seqno is wrapped around */
 	if (unlikely(!seqno))
@@ -1237,7 +1232,6 @@ void tipc_crypto_key_flush(struct tipc_crypto *c)
 	tipc_crypto_key_set_state(c, 0, 0, 0);
 	for (k = KEY_MIN; k <= KEY_MAX; k++)
 		tipc_crypto_key_detach(c->aead[k], &c->lock);
-	atomic64_set(&c->sndnxt, 0);
 	spin_unlock_bh(&c->lock);
 }
 
@@ -1384,8 +1378,6 @@ static struct tipc_aead *tipc_crypto_key_pick_tx(struct tipc_crypto *tx,
  * It also considers if peer has no key, then we need to make own master key
  * (if any) taking over i.e. starting grace period and also trigger key
  * distributing process.
- *
- * The "per-peer" sndnxt is also reset when the peer key has switched.
  */
 static void tipc_crypto_key_synch(struct tipc_crypto *rx, struct sk_buff *skb)
 {
@@ -1436,7 +1428,6 @@ static void tipc_crypto_key_synch(struct tipc_crypto *rx, struct sk_buff *skb)
 		if (cur)
 			tipc_aead_users_dec(tx->aead[cur], 0);
 
-		atomic64_set(&rx->sndnxt, 0);
 		/* Mark the point TX key users changed */
 		tx->timer1 = jiffies;
 
@@ -1501,7 +1492,6 @@ int tipc_crypto_start(struct tipc_crypto **crypto, struct net *net,
 	tipc_crypto_key_set_state(c, 0, 0, 0);
 	atomic_set(&c->key_distr, 0);
 	atomic_set(&c->peer_rx_active, 0);
-	atomic64_set(&c->sndnxt, 0);
 	c->timer1 = jiffies;
 	c->timer2 = jiffies;
 	c->rekeying_intv = TIPC_REKEYING_INTV_DEF;