From 19873f04d4f5c3b675ad8a28deae2df6e50f5ab1 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Tue, 21 Apr 2020 12:30:58 -0500
Subject: [PATCH] Fix M100 compile warning
---
Marlin/src/gcode/calibrate/M100.cpp | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/Marlin/src/gcode/calibrate/M100.cpp b/Marlin/src/gcode/calibrate/M100.cpp
index 6b8a0de528..fb04420e54 100644
--- a/Marlin/src/gcode/calibrate/M100.cpp
+++ b/Marlin/src/gcode/calibrate/M100.cpp
@@ -116,13 +116,18 @@
// Utility functions
//
-// Location of a variable on its stack frame. Returns a value above
-// the stack (once the function returns to the caller).
-char* top_of_stack() {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wreturn-local-addr"
+
+// Location of a variable in its stack frame.
+// The returned address will be above the stack (after it returns).
+char *top_of_stack() {
char x;
return &x + 1; // x is pulled on return;
}
+#pragma GCC diagnostic pop
+
// Count the number of test bytes at the specified location.
inline int32_t count_test_bytes(const char * const start_free_memory) {
for (uint32_t i = 0; i < 32000; i++)