diff --git a/include/net/sock.h b/include/net/sock.h
index 858891c36f94ad2577726d6d21cf871dbcd55d98..00d09140e35474fb686a41e019d3f82f8920da47 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -907,7 +907,10 @@ static inline int sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 
 static inline void sk_incoming_cpu_update(struct sock *sk)
 {
-	sk->sk_incoming_cpu = raw_smp_processor_id();
+	int cpu = raw_smp_processor_id();
+
+	if (unlikely(sk->sk_incoming_cpu != cpu))
+		sk->sk_incoming_cpu = cpu;
 }
 
 static inline void sock_rps_record_flow_hash(__u32 hash)