From b7fb06052f6e13e44038dda0bd610e0eb4dfff76 Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simonduq@sics.se>
Date: Thu, 1 Oct 2015 12:05:03 +0200
Subject: [PATCH] cc2530: do not declare sfd_timestamp if not used

---
 dev/cc2520/cc2520.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dev/cc2520/cc2520.c b/dev/cc2520/cc2520.c
index b31302c43..3b40c8879 100644
--- a/dev/cc2520/cc2520.c
+++ b/dev/cc2520/cc2520.c
@@ -436,17 +436,17 @@ cc2520_transmit(unsigned short payload_len)
 #endif /* WITH_SEND_CCA */
   for(i = LOOP_20_SYMBOLS; i > 0; i--) {
     if(CC2520_SFD_IS_1) {
+#if PACKETBUF_WITH_PACKET_TYPE
       {
         rtimer_clock_t sfd_timestamp;
         sfd_timestamp = cc2520_sfd_start_time;
-#if PACKETBUF_WITH_PACKET_TYPE
         if(packetbuf_attr(PACKETBUF_ATTR_PACKET_TYPE) ==
            PACKETBUF_ATTR_PACKET_TYPE_TIMESTAMP) {
           /* Write timestamp to last two bytes of packet in TXFIFO. */
           CC2520_WRITE_RAM(&sfd_timestamp, CC2520RAM_TXFIFO + payload_len - 1, 2);
         }
-#endif
       }
+#endif /* PACKETBUF_WITH_PACKET_TYPE */
 
       if(!(status() & BV(CC2520_TX_ACTIVE))) {
         /* SFD went high but we are not transmitting. This means that