Index: sys/netinet/cc/cc_cubic.c
===================================================================
--- sys/netinet/cc/cc_cubic.c
+++ sys/netinet/cc/cc_cubic.c
@@ -137,10 +137,7 @@
 	 * or are doing ABC and we've sent a cwnd's worth of bytes.
 	 */
 	if (type == CC_ACK && !IN_RECOVERY(CCV(ccv, t_flags)) &&
-	    (ccv->flags & CCF_CWND_LIMITED) && (!V_tcp_do_rfc3465 ||
-	    (cubic_data->flags & (CUBICFLAG_IN_SLOWSTART | CUBICFLAG_IN_APPLIMIT)) ||
-	    CCV(ccv, snd_cwnd) <= CCV(ccv, snd_ssthresh) ||
-	    (V_tcp_do_rfc3465 && (ccv->flags & CCF_ABC_SENTAWND)))) {
+	    (ccv->flags & CCF_CWND_LIMITED)) {
 		 /* Use the logic in NewReno ack_received() for slow start. */
 		if (CCV(ccv, snd_cwnd) <= CCV(ccv, snd_ssthresh) ||
 		    cubic_data->min_rtt_ticks == TCPTV_SRTTBASE) {