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Subject[PATCH AUTOSEL 5.5 536/542] kbuild: make multiple directory targets work
Date
From: Masahiro Yamada <masahiroy@kernel.org>

[ Upstream commit f566e1fbadb686e28f1c307e356114b2865ef588 ]

Currently, the single-target build does not work when two
or more sub-directories are given:

$ make fs/ kernel/ lib/
CALL scripts/checksyscalls.sh
CALL scripts/atomic/check-atomics.sh
DESCEND objtool
make[2]: Nothing to be done for 'kernel/'.
make[2]: Nothing to be done for 'fs/'.
make[2]: Nothing to be done for 'lib/'.

Make it work properly.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index fdaa1e262320d..b65e891c4deae 100644
--- a/Makefile
+++ b/Makefile
@@ -1691,7 +1691,7 @@ PHONY += descend $(build-dirs)
descend: $(build-dirs)
$(build-dirs): prepare
$(Q)$(MAKE) $(build)=$@ \
- single-build=$(if $(filter-out $@/, $(single-no-ko)),1) \
+ single-build=$(if $(filter-out $@/, $(filter $@/%, $(single-no-ko))),1) \
need-builtin=1 need-modorder=1

clean-dirs := $(addprefix _clean_, $(clean-dirs))
--
2.20.1
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