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kbuild: make multiple directory targets work

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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>
This commit is contained in:
Masahiro Yamada 2020-02-05 15:51:52 +09:00
parent 089b7d890f
commit f566e1fbad
1 changed files with 1 additions and 1 deletions
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2
Makefile
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@ -1679,7 +1679,7 @@ 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))