diff --git a/src/main/common/maths.c b/src/main/common/maths.c
index 9123d643e8..6c867d3c67 100644
--- a/src/main/common/maths.c
+++ b/src/main/common/maths.c
@@ -532,19 +532,19 @@ float fast_fsqrtf(const double value) {
 #endif
     if (isnan(ret))
     {
-        return 0;
+        return 0.0f;
     }
     return ret;
 }
 
 // function to calculate the normalization (pythagoras) of a 2-dimensional vector
-float calc_length_pythagorean_2D(const float firstElement, const float secondElement)
+float NOINLINE calc_length_pythagorean_2D(const float firstElement, const float secondElement)
 {
   return fast_fsqrtf(sq(firstElement) + sq(secondElement));
 }
 
 // function to calculate the normalization (pythagoras) of a 3-dimensional vector
-float calc_length_pythagorean_3D(const float firstElement, const float secondElement, const float thirdElement)
+float NOINLINE calc_length_pythagorean_3D(const float firstElement, const float secondElement, const float thirdElement)
 {
   return fast_fsqrtf(sq(firstElement) + sq(secondElement) + sq(thirdElement));
 }
\ No newline at end of file