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kbuild: fix DT binding schema rule to detect command line changes

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commit 7a04960560640ac5b0b89461f7757322b57d0c7a upstream.

This if_change_rule is not working properly; it cannot detect any
command line change.

The reason is because cmd-check in scripts/Kbuild.include compares
$(cmd_$@) and $(cmd_$1), but cmd_dtc_dt_yaml does not exist here.

For if_change_rule to work properly, the stem part of cmd_* and rule_*
must match. Because this cmd_and_fixdep invokes cmd_dtc, this rule must
be named rule_dtc.

Fixes: 4f0e3a57d6eb ("kbuild: Add support for DT binding schema checks")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Masahiro Yamada 2020-02-23 04:04:31 +09:00 committed by Greg Kroah-Hartman
parent f2688e7537
commit f5cfa47505
1 changed files with 2 additions and 2 deletions
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4
scripts/Makefile.lib
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@ -305,13 +305,13 @@ DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.yaml
quiet_cmd_dtb_check = CHECK $@
cmd_dtb_check = $(DT_CHECKER) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ ;
define rule_dtc_dt_yaml
define rule_dtc
$(call cmd_and_fixdep,dtc,yaml)
$(call cmd,dtb_check)
endef
$(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
$(call if_changed_rule,dtc_dt_yaml)
$(call if_changed_rule,dtc)
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)