--- a/Makefile
+++ b/Makefile
@@ -354,7 +354,8 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstric
-fno-strict-aliasing -fno-common \
-Werror-implicit-function-declaration \
-Wno-format-security \
- -fno-delete-null-pointer-checks
+ -fno-delete-null-pointer-checks \
+ -Wno-error=unused-but-set-variable
KBUILD_AFLAGS_KERNEL :=
KBUILD_CFLAGS_KERNEL :=
KBUILD_AFLAGS := -D__ASSEMBLY__