kbuild: remove extmod_prefix, MODORDER, MODULES_NSDEPS variables

With the previous changes, $(extmod_prefix), $(MODORDER), and
$(MODULES_NSDEPS) are constant. (empty, modules.order, and
modules.nsdeps, respectively).

Remove these variables and hard-code their values.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>

Makefile

@@ -1122,10 +1122,6 @@ export MODLIB
 
 PHONY += prepare0
 
-export extmod_prefix =
-export MODORDER := $(extmod_prefix)modules.order
-export MODULES_NSDEPS := $(extmod_prefix)modules.nsdeps
-
 ifeq ($(KBUILD_EXTMOD),)
 
 build-dir	:= .
@@ -1876,7 +1872,7 @@ endif
 
 ifdef CONFIG_MODULES
 
-$(MODORDER): $(build-dir)
+modules.order: $(build-dir)
 	@:
 
 # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
@@ -1887,7 +1883,7 @@ ifneq ($(KBUILD_MODPOST_NOFINAL),1)
 endif
 
 PHONY += modules_check
-modules_check: $(MODORDER)
+modules_check: modules.order
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh $<
 
 else # CONFIG_MODULES
@@ -1928,15 +1924,15 @@ $(single-ko): single_modules
 $(single-no-ko): $(build-dir)
 	@:
 
-# Remove MODORDER when done because it is not the real one.
+# Remove modules.order when done because it is not the real one.
 PHONY += single_modules
 single_modules: $(single-no-ko) modules_prepare
-	$(Q){ $(foreach m, $(single-ko), echo $(extmod_prefix)$(m:%.ko=%.o);) } > $(MODORDER)
+	$(Q){ $(foreach m, $(single-ko), echo $(m:%.ko=%.o);) } > modules.order
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
 ifneq ($(KBUILD_MODPOST_NOFINAL),1)
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modfinal
 endif
-	$(Q)rm -f $(MODORDER)
+	$(Q)rm -f modules.order
 
 single-goals := $(addprefix $(build-dir)/, $(single-no-ko))
 
@@ -2013,12 +2009,12 @@ nsdeps: modules
 quiet_cmd_gen_compile_commands = GEN     $@
       cmd_gen_compile_commands = $(PYTHON3) $< -a $(AR) -o $@ $(filter-out $<, $(real-prereqs))
 
-$(extmod_prefix)compile_commands.json: $(srctree)/scripts/clang-tools/gen_compile_commands.py \
+compile_commands.json: $(srctree)/scripts/clang-tools/gen_compile_commands.py \
 	$(if $(KBUILD_EXTMOD),, vmlinux.a $(KBUILD_VMLINUX_LIBS)) \
-	$(if $(CONFIG_MODULES), $(MODORDER)) FORCE
+	$(if $(CONFIG_MODULES), modules.order) FORCE
 	$(call if_changed,gen_compile_commands)
 
-targets += $(extmod_prefix)compile_commands.json
+targets += compile_commands.json
 
 PHONY += clang-tidy clang-analyzer
 
@@ -2026,7 +2022,7 @@ ifdef CONFIG_CC_IS_CLANG
 quiet_cmd_clang_tools = CHECK   $<
       cmd_clang_tools = $(PYTHON3) $(srctree)/scripts/clang-tools/run-clang-tools.py $@ $<
 
-clang-tidy clang-analyzer: $(extmod_prefix)compile_commands.json
+clang-tidy clang-analyzer: compile_commands.json
 	$(call cmd,clang_tools)
 else
 clang-tidy clang-analyzer:

scripts/Makefile.modfinal

@@ -13,7 +13,7 @@ include $(srctree)/scripts/Kbuild.include
 include $(srctree)/scripts/Makefile.lib
 
 # find all modules listed in modules.order
-modules := $(call read-file, $(MODORDER))
+modules := $(call read-file, modules.order)
 
 __modfinal: $(modules:%.o=%.ko)
 	@:
@@ -30,7 +30,7 @@ quiet_cmd_cc_o_c = CC [M]  $@
 %.mod.o: %.mod.c FORCE
 	$(call if_changed_dep,cc_o_c)
 
-$(extmod_prefix).module-common.o: $(srctree)/scripts/module-common.c FORCE
+.module-common.o: $(srctree)/scripts/module-common.c FORCE
 	$(call if_changed_dep,cc_o_c)
 
 quiet_cmd_ld_ko_o = LD [M]  $@
@@ -57,13 +57,13 @@ if_changed_except = $(if $(call newer_prereqs_except,$(2))$(cmd-check),      \
 	printf '%s\n' 'savedcmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
 
 # Re-generate module BTFs if either module's .ko or vmlinux changed
-%.ko: %.o %.mod.o $(extmod_prefix).module-common.o $(objtree)/scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),$(objtree)/vmlinux) FORCE
+%.ko: %.o %.mod.o .module-common.o $(objtree)/scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),$(objtree)/vmlinux) FORCE
 	+$(call if_changed_except,ld_ko_o,$(objtree)/vmlinux)
 ifdef CONFIG_DEBUG_INFO_BTF_MODULES
 	+$(if $(newer-prereqs),$(call cmd,btf_ko))
 endif
 
-targets += $(modules:%.o=%.ko) $(modules:%.o=%.mod.o) $(extmod_prefix).module-common.o
+targets += $(modules:%.o=%.ko) $(modules:%.o=%.mod.o) .module-common.o
 
 # Add FORCE to the prerequisites of a target to force it to be always rebuilt.
 # ---------------------------------------------------------------------------

scripts/Makefile.modinst

@@ -40,7 +40,7 @@ $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo modules.builtin.
 
 endif
 
-modules := $(call read-file, $(MODORDER))
+modules := $(call read-file, modules.order)
 
 ifeq ($(KBUILD_EXTMOD),)
 dst := $(MODLIB)/kernel
@@ -59,7 +59,7 @@ suffix-$(CONFIG_MODULE_COMPRESS_XZ)	:= .xz
 suffix-$(CONFIG_MODULE_COMPRESS_ZSTD)	:= .zst
 endif
 
-modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))
+modules := $(patsubst %.o, $(dst)/%.ko$(suffix-y), $(modules))
 install-$(CONFIG_MODULES) += $(modules)
 
 __modinst: $(install-y)
@@ -119,7 +119,7 @@ endif
 # Create necessary directories
 $(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir)))
 
-$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
+$(dst)/%.ko: %.ko FORCE
 	$(call cmd,install)
 	$(call cmd,strip)
 	$(call cmd,sign)

scripts/Makefile.modpost

@@ -46,7 +46,7 @@ modpost-args =										\
 	$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a)					\
 	$(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E)					\
 	$(if $(KBUILD_MODPOST_WARN),-w)							\
-	$(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS))					\
+	$(if $(KBUILD_NSDEPS),-d modules.nsdeps)					\
 	$(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N)	\
 	$(if $(findstring 1, $(KBUILD_EXTRA_WARN)),-W)					\
 	-o $@
@@ -61,8 +61,8 @@ endif
 # Read out modules.order to pass in modpost.
 # Otherwise, allmodconfig would fail with "Argument list too long".
 ifdef KBUILD_MODULES
-modpost-args += -T $(MODORDER)
-modpost-deps += $(MODORDER)
+modpost-args += -T modules.order
+modpost-deps += modules.order
 endif
 
 ifeq ($(KBUILD_EXTMOD),)

scripts/nsdeps

@@ -51,4 +51,4 @@ generate_deps() {
 while read line
 do
 	generate_deps $line
-done < $MODULES_NSDEPS
+done < modules.nsdeps