Fix another mistake regarding recv timestamps

packet-exchange/src/recv_packet.c

@@ -153,17 +153,16 @@ packet_timestamps_t recv_udp_packet(int use_timestamps, int use_histograms, int6
 
         struct timespec *stamp = (struct timespec *)CMSG_DATA(cmsg);
         packet_ts.kernelspace_ts = ts_to_uint(*stamp);
+
+        clock_gettime(CLOCK_REALTIME, &ts);
+        packet_ts.userspace_exit_ts = ts_to_uint(ts);
+
         if(use_histograms)
           fill_histograms(&packet_ts, histograms);
       }
     }
   }
 
-  if (use_timestamps) {
-    clock_gettime(CLOCK_REALTIME, &ts);
-    packet_ts.userspace_exit_ts = ts_to_uint(ts);
-  }
-
   return packet_ts;
 }