[PATCH 4/4] kbuild: error out if $(INSTALL_MOD_PATH) contains % or :

[Masahiro Yamada]

If the directory pass given to INSTALL_MOD_PATH contains % or :,
the module_install fails.

% is used in pattern rules, and : as the separator of dependencies.

Bail out with a clearer error message.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---

 scripts/Makefile.modinst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 16a02e9237d3..a4c987c23750 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -18,6 +18,9 @@ INSTALL_MOD_DIR ?= extra
 dst := $(MODLIB)/$(INSTALL_MOD_DIR)
 endif
 
+$(foreach x, % :, $(if $(findstring $x, $(dst)), \
+	$(error module installation path cannot contain '$x')))
+
 suffix-y				:=
 suffix-$(CONFIG_MODULE_COMPRESS_GZIP)	:= .gz
 suffix-$(CONFIG_MODULE_COMPRESS_XZ)	:= .xz
-- 
2.34.1