From 6ccf36439d93def3f6378f4cb426e3fd2fda1574 Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Wed, 19 Oct 2016 12:40:46 +1100
Subject: [PATCH] AP_Frsky_Telem: actually set _ap.value flags based in
 is_flying

Closes #5017
---
 libraries/AP_Frsky_Telem/AP_Frsky_Telem.cpp | 9 +++++++++
 libraries/AP_Frsky_Telem/AP_Frsky_Telem.h   | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/libraries/AP_Frsky_Telem/AP_Frsky_Telem.cpp b/libraries/AP_Frsky_Telem/AP_Frsky_Telem.cpp
index 3fae6058e1..ca35deb6ca 100644
--- a/libraries/AP_Frsky_Telem/AP_Frsky_Telem.cpp
+++ b/libraries/AP_Frsky_Telem/AP_Frsky_Telem.cpp
@@ -907,3 +907,12 @@ void AP_Frsky_Telem::calc_gps_position(void)
         _gps.speed_in_centimeter = 0;
     }
 }
+
+void AP_Frsky_Telem::set_is_flying(bool is_flying)
+{
+    if (is_flying) {
+        _ap.value |= AP_ISFLYING_FLAG;
+    } else {
+        _ap.value &= ~AP_ISFLYING_FLAG;
+    }
+}
diff --git a/libraries/AP_Frsky_Telem/AP_Frsky_Telem.h b/libraries/AP_Frsky_Telem/AP_Frsky_Telem.h
index dcca473737..d4fb903989 100644
--- a/libraries/AP_Frsky_Telem/AP_Frsky_Telem.h
+++ b/libraries/AP_Frsky_Telem/AP_Frsky_Telem.h
@@ -127,7 +127,7 @@ public:
     void update_control_mode(uint8_t mode) { _ap.control_mode = mode; }
 
     // update whether we're flying (used for Plane)
-    void set_is_flying(bool is_flying) { is_flying ? (_ap.value | AP_ISFLYING_FLAG) : (_ap.value & (~AP_ISFLYING_FLAG)); }
+    void set_is_flying(bool is_flying);
  
     // update error mask of sensors and subsystems. The mask uses the
     // MAV_SYS_STATUS_* values from mavlink. If a bit is set then it
-- 
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