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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-17 19:02:43 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-28 09:11:17 +0900
commitafa974b771281fd89e8fdcb71152152f17fb8303 (patch)
treeb6a3de04148c2207d3cd094b70820160e24d0420 /Documentation/devicetree/bindings/Makefile
parent5d680056cb6de18f0221e321ee51d60ccd700781 (diff)
kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^)
In Kbuild, if_changed and friends must have FORCE as a prerequisite. Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common idiom to get the names of all the prerequisites except phony targets. Add real-prereqs as a shorthand. Note: We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may include auto-generated dependencies from the .*.cmd file when a single object module is changed into a multi object module. Refer to commit 69ea912fda74 ("kbuild: remove unneeded link_multi_deps"). I added some comment to avoid accidental breakage. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/Makefile')
-rw-r--r--Documentation/devicetree/bindings/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 6e5cef0ed6fb..e4eb5d1ea3b5 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -15,7 +15,7 @@ DT_TMP_SCHEMA := processed-schema.yaml
extra-y += $(DT_TMP_SCHEMA)
quiet_cmd_mk_schema = SCHEMA $@
- cmd_mk_schema = $(DT_MK_SCHEMA) $(DT_MK_SCHEMA_FLAGS) -o $@ $(filter-out FORCE, $^)
+ cmd_mk_schema = $(DT_MK_SCHEMA) $(DT_MK_SCHEMA_FLAGS) -o $@ $(real-prereqs)
DT_DOCS = $(shell cd $(srctree)/$(src) && find * -name '*.yaml')
DT_SCHEMA_FILES ?= $(addprefix $(src)/,$(DT_DOCS))