openwrt-xburst/package/ppp/patches/205-no_exponential_timeout.patch

--- a/pppd/plugins/rp-pppoe/discovery.c
+++ b/pppd/plugins/rp-pppoe/discovery.c
@@ -593,12 +593,14 @@ discovery(PPPoEConnection *conn)
 	conn->discoveryState = STATE_SENT_PADI;
 	waitForPADO(conn, timeout);
 
+#if 0
 	/* If we're just probing for access concentrators, don't do
 	   exponential backoff.  This reduces the time for an unsuccessful
 	   probe to 15 seconds. */
 	if (!conn->printACNames) {
 	    timeout *= 2;
 	}
+#endif
 	if (conn->printACNames && conn->numPADOs) {
 	    break;
 	}
@@ -621,7 +623,9 @@ discovery(PPPoEConnection *conn)
 	sendPADR(conn);
 	conn->discoveryState = STATE_SENT_PADR;
 	waitForPADS(conn, timeout);
+#if 0
 	timeout *= 2;
+#endif
     } while (conn->discoveryState == STATE_SENT_PADR);
 
     /* We're done. */