diff --git a/docs/design/firmware-design.rst b/docs/design/firmware-design.rst
index cf8cbc7..1306ecb 100644
--- a/docs/design/firmware-design.rst
+++ b/docs/design/firmware-design.rst
@@ -2599,6 +2599,9 @@
 section section can be reclaimed for any data which is accessed after cold
 boot initialization and it is upto the platform to make the decision.
 
+Please note that this will disable inlining for any functions with the __init
+attribute.
+
 .. _firmware_design_pmf:
 
 Performance Measurement Framework