On Mon, Oct 5, 2020 at 7:13 PM Olaf Hering <olaf@xxxxxxxxx> wrote: > > Catch errors which at least gcc tolerates by default: > warning: 'return' with no value, in function returning non-void [-Wreturn-type] > > Signed-off-by: Olaf Hering <olaf@xxxxxxxxx> > --- > Makefile | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Makefile b/Makefile > index f84d7e4ca0be..7b2e63e7be18 100644 > --- a/Makefile > +++ b/Makefile > @@ -942,6 +942,9 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) > # enforce correct pointer usage > KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types) > > +# enforce correct return type > +KBUILD_CFLAGS += $(call cc-option,-Werror=return-type) > + cc-option is unneeded because the minimal supported versions of GCC/Clang support -Werror=return-type. You can hard-code and add it around line 500. > # Require designated initializers for all marked structures > KBUILD_CFLAGS += $(call cc-option,-Werror=designated-init) > -- Best Regards Masahiro Yamada
