This is a note to let you know that I've just added the patch titled
kbuild: fix false-positive need-builtin calculation
to the 4.19-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-false-positive-need-builtin-calculation.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 09f75e4c4591af8ea05f768fafa7016312544e64
Author: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Date: Tue Aug 6 19:03:21 2019 +0900
kbuild: fix false-positive need-builtin calculation
[ Upstream commit d9f78edfd81b9e484423534360350ef7253cc888 ]
The current implementation of need-builtin is false-positive,
for example, in the following Makefile:
obj-m := foo/
obj-y := foo/bar/
..., where foo/built-in.a is not required.
Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Stable-dep-of: 2e3d0e20d845 ("ARM: dts: exynos: correct TMU phandle in Odroid HC1")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 64fac0ad32d6b..7635cc05fcfa3 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -541,7 +541,8 @@ targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \
PHONY += $(subdir-ym)
$(subdir-ym):
- $(Q)$(MAKE) $(build)=$@ need-builtin=$(if $(findstring $@,$(subdir-obj-y)),1)
+ $(Q)$(MAKE) $(build)=$@ \
+ need-builtin=$(if $(filter $@/built-in.a, $(subdir-obj-y)),1)
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------
