--- a/Makefile
+++ b/Makefile
-@@ -640,12 +640,12 @@ KBUILD_CFLAGS += $(call cc-option,-fdata
- endif
+@@ -656,12 +656,12 @@ endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
--KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
-+KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
+ KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
+-KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
++KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
-KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,)