kbuild: force to build vmlinux if CONFIG_MODVERSION=y
commit 4b50c8c4eaf06a825d1c005c0b1b4a8307087b83 upstream.
This code does not work as stated in the comment.
$(CONFIG_MODVERSIONS) is always empty because it is expanded before
include/config/auto.conf is included. Hence, 'make modules' with
CONFIG_MODVERSION=y cannot record the version CRCs.
This has been broken since 2003, commit ("kbuild: Enable modules to be
build using the "make dir/" syntax"). [1]
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?id=15c6240cdc44bbeef3c4797ec860f9765ef4f1a7
Cc: linux-stable <stable@vger.kernel.org> # v2.5.71+
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Makefile b/Makefile
index 6c3c6e1..561659a 100644
--- a/Makefile
+++ b/Makefile
@@ -313,12 +313,8 @@
KBUILD_BUILTIN := 1
# If we have only "make modules", don't compile built-in objects.
-# When we're building modules with modversions, we need to consider
-# the built-in objects during the descend as well, in order to
-# make sure the checksums are up to date before we record them.
-
ifeq ($(MAKECMDGOALS),modules)
- KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
+ KBUILD_BUILTIN :=
endif
# If we have "make <whatever> modules", compile modules
@@ -1237,6 +1233,13 @@
all: modules
+# When we're building modules with modversions, we need to consider
+# the built-in objects during the descend as well, in order to
+# make sure the checksums are up to date before we record them.
+ifdef CONFIG_MODVERSIONS
+ KBUILD_BUILTIN := 1
+endif
+
# Build modules
#
# A module can be listed more than once in obj-m resulting in