diff --git a/Makefile b/Makefile
index 02aff718a11d..18a237743a02 100644
--- a/Makefile
+++ b/Makefile
@@ -846,7 +846,7 @@ NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 KBUILD_CFLAGS += -Wdeclaration-after-statement
 
 # Warn about unmarked fall-throughs in switch statement.
-KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough=3,)
+KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough,)
 
 # Variable Length Arrays (VLAs) should not be used anywhere in the kernel
 KBUILD_CFLAGS += -Wvla
diff --git a/arch/parisc/math-emu/Makefile b/arch/parisc/math-emu/Makefile
index 55c1396580a4..3747a0cbd3b8 100644
--- a/arch/parisc/math-emu/Makefile
+++ b/arch/parisc/math-emu/Makefile
@@ -18,4 +18,4 @@ obj-y	 := frnd.o driver.o decode_exc.o fpudispatch.o denormal.o \
 # other very old or stripped-down PA-RISC CPUs -- not currently supported
 
 obj-$(CONFIG_MATH_EMULATION)	+= unimplemented-math-emulation.o
-CFLAGS_REMOVE_fpudispatch.o	= -Wimplicit-fallthrough=3
+CFLAGS_REMOVE_fpudispatch.o	= -Wimplicit-fallthrough