diff -drupN a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
--- a/scripts/Makefile.extrawarn	2018-08-06 17:23:04.000000000 +0300
+++ b/scripts/Makefile.extrawarn	2022-06-12 05:28:14.000000000 +0300
@@ -64,7 +64,6 @@ ifeq ($(cc-name),clang)
 KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides)
 KBUILD_CFLAGS += $(call cc-disable-warning, unused-value)
 KBUILD_CFLAGS += $(call cc-disable-warning, format)
-KBUILD_CFLAGS += $(call cc-disable-warning, unknown-warning-option)
 KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare)
 KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length)
 KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized)