Merge pull request #1052 from simonduq/packetbuf-cleanup

Packetbuf cleanup

core/net/ipv6/sicslowpan.c

@@ -1336,11 +1336,6 @@ send_packet(linkaddr_t *dest)
   packetbuf_set_addr(PACKETBUF_ADDR_SENDER,(void*)&uip_lladdr);
 #endif
 
-  /* Force acknowledge from sender (test hardware autoacks) */
-#if SICSLOWPAN_CONF_ACK_ALL
-    packetbuf_set_attr(PACKETBUF_ATTR_RELIABLE, 1);
-#endif
-
   /* Provide a callback function to receive the result of
      a packet transmission. */
   NETSTACK_LLSEC.send(&packet_sent, NULL);
@@ -1388,6 +1383,7 @@ output(const uip_lladdr_t *localdest)
     set_packet_attrs();
   }
 
+#if PACKETBUF_WITH_PACKET_TYPE
 #define TCP_FIN 0x01
 #define TCP_ACK 0x10
 #define TCP_CTL 0x3f
@@ -1402,6 +1398,7 @@ output(const uip_lladdr_t *localdest)
     packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
                        PACKETBUF_ATTR_PACKET_TYPE_STREAM_END);
   }
+#endif
 
   /*
    * The destination address will be tagged to each outbound