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# SPDX-License-Identifier: GPL-2.0# ==========================================================================# Cleaning up# ========================================================================== src := $(obj) PHONY := __clean__clean: include $(srctree)/scripts/Kbuild.include # The filename Kbuild has precedence over Makefilekbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) # Figure out what we need to build from the various variables# ========================================================================== subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \		$(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-)))) # Add subdir path subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn)) # build a list of files to remove, usually relative to the current# directory __clean-files	:= \	$(clean-files) $(targets) $(hostprogs) $(userprogs) \	$(extra-y) $(extra-m) $(extra-) \	$(always-y) $(always-m) $(always-) \	$(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \	$(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-) __clean-files   := $(filter-out $(no-clean-files), $(__clean-files)) # clean-files is given relative to the current directory, unless it# starts with $(objtree)/ (which means "./", so do not add "./" unless# you want to delete a file from the toplevel object directory). __clean-files   := $(wildcard                                               \		   $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \		   $(filter $(objtree)/%, $(__clean-files))) # ========================================================================== quiet_cmd_clean = CLEAN   $(obj)      cmd_clean = rm -rf $(__clean-files) __clean: $(subdir-ymn)ifneq ($(strip $(__clean-files)),)	$(call cmd,clean)endif	@:  # ===========================================================================# Generic stuff# =========================================================================== # Descending# --------------------------------------------------------------------------- PHONY += $(subdir-ymn)$(subdir-ymn):	$(Q)$(MAKE) $(clean)=$@ .PHONY: $(PHONY)