271 		if (t->pl.probe_size == SCTP_BASE_PLPMTU) { /* BASE_PLPMTU Confirmation Failed */  in sctp_transport_pl_send()
279 		if (t->pl.pmtu == t->pl.probe_size) { /* Black Hole Detected */  in sctp_transport_pl_send()
281 			t->pl.probe_size = SCTP_BASE_PLPMTU;  in sctp_transport_pl_send()
288 			t->pl.probe_high = t->pl.probe_size;  in sctp_transport_pl_send()
289 			t->pl.probe_size = t->pl.pmtu;  in sctp_transport_pl_send()
292 		if (t->pl.pmtu == t->pl.probe_size) { /* Black Hole Detected */  in sctp_transport_pl_send()
294 			t->pl.probe_size = SCTP_BASE_PLPMTU;  in sctp_transport_pl_send()
304 		 __func__, t, t->pl.state, t->pl.pmtu, t->pl.probe_size, t->pl.probe_high);  in sctp_transport_pl_send()
311 		 __func__, t, t->pl.state, t->pl.pmtu, t->pl.probe_size, t->pl.probe_high);  in sctp_transport_pl_recv()
313 	t->pl.pmtu = t->pl.probe_size;  in sctp_transport_pl_recv()
317 		t->pl.probe_size += SCTP_PL_BIG_STEP;  in sctp_transport_pl_recv()
321 		t->pl.pmtu = t->pl.probe_size;  in sctp_transport_pl_recv()
324 		t->pl.probe_size += SCTP_PL_BIG_STEP;  in sctp_transport_pl_recv()
327 			if (t->pl.probe_size < SCTP_MAX_PLPMTU) {  in sctp_transport_pl_recv()
328 				t->pl.probe_size = min(t->pl.probe_size + SCTP_PL_BIG_STEP,  in sctp_transport_pl_recv()
334 		t->pl.probe_size += SCTP_PL_MIN_STEP;  in sctp_transport_pl_recv()
335 		if (t->pl.probe_size >= t->pl.probe_high) {  in sctp_transport_pl_recv()
339 			t->pl.probe_size = t->pl.pmtu;  in sctp_transport_pl_recv()
347 		t->pl.probe_size = min(t->pl.probe_size + SCTP_PL_MIN_STEP, SCTP_MAX_PLPMTU);  in sctp_transport_pl_recv()
356 		 __func__, t, t->pl.state, t->pl.pmtu, t->pl.probe_size, pmtu);  in sctp_transport_pl_toobig()
358 	if (pmtu < SCTP_MIN_PLPMTU || pmtu >= t->pl.probe_size)  in sctp_transport_pl_toobig()
372 			t->pl.probe_size = SCTP_BASE_PLPMTU;  in sctp_transport_pl_toobig()
379 		} else if (pmtu > t->pl.pmtu && pmtu < t->pl.probe_size) {  in sctp_transport_pl_toobig()
380 			t->pl.probe_size = pmtu;  in sctp_transport_pl_toobig()
386 			t->pl.probe_size = SCTP_BASE_PLPMTU;  in sctp_transport_pl_toobig()