diff --git a/Makefile b/Makefile
index 5a2a4c204273..85d240b3b6c7 100644
--- a/Makefile
+++ b/Makefile
@@ -1052,12 +1052,6 @@ KBUILD_CFLAGS += -Wno-pointer-sign
 # globally built with -Wcast-function-type.
 KBUILD_CFLAGS += $(call cc-option, -Wcast-function-type)
 
-# To gain proper coverage for CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE,
-# the kernel uses only C99 flexible arrays for dynamically sized trailing
-# arrays. Enforce this for everything that may examine structure sizes and
-# perform bounds checking.
-KBUILD_CFLAGS += $(call cc-option, -fstrict-flex-arrays=3)
-
 # disable stringop warnings in gcc 8+
 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)