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arm64: clean up tools Makefile 

Remove unused gen-y.

Remove redundant $(shell ...) because 'mkdir' is done in cmd_gen_cpucaps.

Replace $(filter-out $(PHONY), $^) with the $(real-prereqs) shorthand.

The '&&' in cmd_gen_cpucaps should be replaced with ';' because it is
run under 'set -e' environment.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220227085232.206529-1-masahiroy@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Masahiro Yamada 2022-02-27 17:52:32 +09:00 committed by Will Deacon
parent ee94b5a061
commit 819a47d24b
1 changed files with 3 additions and 7 deletions
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10
arch/arm64/tools/Makefile
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@ -5,18 +5,14 @@ kapi := $(gen)/asm
kapi-hdrs-y := $(kapi)/cpucaps.h kapi-hdrs-y := $(kapi)/cpucaps.h
targets += $(addprefix ../../../,$(gen-y) $(kapi-hdrs-y)) targets += $(addprefix ../../../, $(kapi-hdrs-y))
PHONY += kapi PHONY += kapi
kapi: $(kapi-hdrs-y) $(gen-y) kapi: $(kapi-hdrs-y)
# Create output directory if not already present
_dummy := $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
quiet_cmd_gen_cpucaps = GEN $@ quiet_cmd_gen_cpucaps = GEN $@
cmd_gen_cpucaps = mkdir -p $(dir $@) && \ cmd_gen_cpucaps = mkdir -p $(dir $@); $(AWK) -f $(real-prereqs) > $@
$(AWK) -f $(filter-out $(PHONY),$^) > $@
$(kapi)/cpucaps.h: $(src)/gen-cpucaps.awk $(src)/cpucaps FORCE $(kapi)/cpucaps.h: $(src)/gen-cpucaps.awk $(src)/cpucaps FORCE
$(call if_changed,gen_cpucaps) $(call if_changed,gen_cpucaps)