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Subject[PATCH 1/2] kbuild: reduce KBUILD_SINGLE_TARGETS as descending into subdirectories
Date
KBUILD_SINGLE_TARGETS does not need to contain all the targets.
Change it to keep track the targets only from the current directory
and its subdirectories.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

scripts/Makefile.build | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index a9e47953ca53..dcbb0124dac4 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -469,15 +469,15 @@ targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \

ifdef single-build

+KBUILD_SINGLE_TARGETS := $(filter $(obj)/%, $(KBUILD_SINGLE_TARGETS))
+
curdir-single := $(sort $(foreach x, $(KBUILD_SINGLE_TARGETS), \
$(if $(filter $(x) $(basename $(x)).o, $(targets)), $(x))))

# Handle single targets without any rule: show "Nothing to be done for ..." or
# "No rule to make target ..." depending on whether the target exists.
unknown-single := $(filter-out $(addsuffix /%, $(subdir-ym)), \
- $(filter $(obj)/%, \
- $(filter-out $(curdir-single), \
- $(KBUILD_SINGLE_TARGETS))))
+ $(filter-out $(curdir-single), $(KBUILD_SINGLE_TARGETS)))

__build: $(curdir-single) $(subdir-ym)
ifneq ($(unknown-single),)
--
2.17.1
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