diff --git a/net/x25/x25_subr.c b/net/x25/x25_subr.c
index 8d6220a..511a598 100644
--- a/net/x25/x25_subr.c
+++ b/net/x25/x25_subr.c
@@ -359,7 +359,7 @@
 {
 	struct x25_sock *x25 = x25_sk(sk);
 
-	if (atomic_read(&sk->sk_rmem_alloc) < (sk->sk_rcvbuf / 2) &&
+	if (atomic_read(&sk->sk_rmem_alloc) < (sk->sk_rcvbuf >> 1) &&
 	    (x25->condition & X25_COND_OWN_RX_BUSY)) {
 		x25->condition &= ~X25_COND_OWN_RX_BUSY;
 		x25->condition &= ~X25_COND_ACK_PENDING;