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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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