modpost: turn missing MODULE_LICENSE() into error
Do not create modules with no license tag.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 43e0086..d55d7e5 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2018,7 +2018,7 @@ static void read_symbols(const char *modname)
if (!mod->is_vmlinux) {
license = get_modinfo(&info, "license");
if (!license)
- warn("missing MODULE_LICENSE() in %s\n", modname);
+ error("missing MODULE_LICENSE() in %s\n", modname);
while (license) {
if (license_is_gpl_compatible(license))
mod->gpl_compatible = 1;