From: Masahiro Yamada masahiroy@kernel.org
commit 4b50c8c4eaf06a825d1c005c0b1b4a8307087b83 upstream.
This code does not work as stated in the comment.
$(CONFIG_MODVERSIONS) is always empty because it is expanded before include/config/auto.conf is included. Hence, 'make modules' with CONFIG_MODVERSION=y cannot record the version CRCs.
This has been broken since 2003, commit ("kbuild: Enable modules to be build using the "make dir/" syntax"). [1]
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?... Cc: linux-stable stable@vger.kernel.org # v2.5.71+ Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- Makefile | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
--- a/Makefile +++ b/Makefile @@ -542,12 +542,8 @@ KBUILD_MODULES := KBUILD_BUILTIN := 1
# If we have only "make modules", don't compile built-in objects. -# When we're building modules with modversions, we need to consider -# the built-in objects during the descend as well, in order to -# make sure the checksums are up to date before we record them. - ifeq ($(MAKECMDGOALS),modules) - KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) + KBUILD_BUILTIN := endif
# If we have "make <whatever> modules", compile modules @@ -1249,6 +1245,13 @@ ifdef CONFIG_MODULES
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