diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c
index 0779daa8aa8f..ab86c720b3ec 100644
--- a/net/llc/llc_c_ac.c
+++ b/net/llc/llc_c_ac.c
@@ -1005,8 +1005,8 @@ static int llc_conn_ac_inc_npta_value(struct sock *sk, struct sk_buff *skb)
 		llc->dec_step = 0;
 		llc->dec_cntr = llc->inc_cntr = 2;
 		++llc->npta;
-		if (llc->npta > (u8) ~LLC_2_SEQ_NBR_MODULO)
-			llc->npta = (u8) ~LLC_2_SEQ_NBR_MODULO;
+		if (llc->npta > LLC_2_SEQ_NBR_MODULO - 1)
+			llc->npta = LLC_2_SEQ_NBR_MODULO - 1;
 	} else
 		--llc->inc_cntr;
 	return 0;
@@ -1096,8 +1096,8 @@ int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb)
 	struct llc_sock *llc = llc_sk(sk);
 
 	llc->k += 1;
-	if (llc->k > (u8) ~LLC_2_SEQ_NBR_MODULO)
-		llc->k = (u8) ~LLC_2_SEQ_NBR_MODULO;
+	if (llc->k > LLC_2_SEQ_NBR_MODULO - 1)
+		llc->k = LLC_2_SEQ_NBR_MODULO - 1;
 	return 0;
 }