This is a note to let you know that I've just added the patch titled
kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kbuild-fix-make-modules-error-when-config_debug_info.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f9cd5fd158e64b1dacc778be813a7ee85938f622
Author: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Date: Tue Jan 10 14:48:00 2023 +0900
kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y
[ Upstream commit 74d3320f6f7cf72de88a7e8df573821f6db90239 ]
When CONFIG_DEBUG_INFO_BTF_MODULES=y, running 'make modules'
in the clean kernel tree will get the following error.
$ grep CONFIG_DEBUG_INFO_BTF_MODULES .config
CONFIG_DEBUG_INFO_BTF_MODULES=y
$ make -s clean
$ make modules
[snip]
AR vmlinux.a
ar: ./built-in.a: No such file or directory
make: *** [Makefile:1241: vmlinux.a] Error 1
'modules' depends on 'vmlinux', but builtin objects are not built.
Define KBUILD_BUILTIN.
Fixes: f73edc8951b2 ("kbuild: unify two modpost invocations")
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/Makefile b/Makefile
index 770e509d4da4..0904b82905d9 100644
--- a/Makefile
+++ b/Makefile
@@ -1529,6 +1529,7 @@ endif
# *.ko are usually independent of vmlinux, but CONFIG_DEBUG_INFOBTF_MODULES
# is an exception.
ifdef CONFIG_DEBUG_INFO_BTF_MODULES
+KBUILD_BUILTIN := 1
modules: vmlinux
endif
