Merge tag 'kbuild-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Evaluate $(call cc-option,...) etc. only for build targets

 - Add CONFIG_VMLINUX_MAP to generate .map file when linking vmlinux

 - Remove unnecessary --gcc-toolchains Clang flag because the --prefix
   flag finds the toolchains

 - Do not pass Clang's --prefix flag when using the integrated as

 - Check the assembler version in Kconfig time

 - Add new CONFIG options, AS_VERSION, AS_IS_GNU, AS_IS_LLVM to clean up
   some dependencies in Kconfig

 - Fix invalid Module.symvers creation when building only modules
   without vmlinux

 - Fix false-positive modpost warnings when CONFIG_TRIM_UNUSED_KSYMS is
   set, but there is no module to build

 - Refactor module installation Makefile

 - Support zstd for module compression

 - Convert alpha and ia64 to use generic shell scripts to generate the
   syscall headers

 - Add a new elfnote to indicate if the kernel was built with LTO, which
   will be used by pahole

 - Flatten the directory structure under include/config/ so CONFIG
   options and filenames match

 - Change the deb source package name from linux-$(KERNELRELEASE) to
   linux-upstream

* tag 'kbuild-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (42 commits)
  kbuild: Add $(KBUILD_HOSTLDFLAGS) to 'has_libelf' test
  kbuild: deb-pkg: change the source package name to linux-upstream
  tools: do not include scripts/Kbuild.include
  kbuild: redo fake deps at include/config/*.h
  kbuild: remove TMPO from try-run
  MAINTAINERS: add pattern for dummy-tools
  kbuild: add an elfnote for whether vmlinux is built with lto
  ia64: syscalls: switch to generic syscallhdr.sh
  ia64: syscalls: switch to generic syscalltbl.sh
  alpha: syscalls: switch to generic syscallhdr.sh
  alpha: syscalls: switch to generic syscalltbl.sh
  sysctl: use min() helper for namecmp()
  kbuild: add support for zstd compressed modules
  kbuild: remove CONFIG_MODULE_COMPRESS
  kbuild: merge scripts/Makefile.modsign to scripts/Makefile.modinst
  kbuild: move module strip/compression code into scripts/Makefile.modinst
  kbuild: refactor scripts/Makefile.modinst
  kbuild: rename extmod-prefix to extmod_prefix
  kbuild: check module name conflict for external modules as well
  kbuild: show the target directory for depmod log
  ...

24 files changed, 405 insertions, 266 deletions

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 509e0856d653..82dd1b65b7a8 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -67,86 +67,6 @@ define filechk
 	fi
 endef
 
-######
-# gcc support functions
-# See documentation in Documentation/kbuild/makefiles.rst
-
-# cc-cross-prefix
-# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
-# Return first <prefix> where a <prefix>gcc is found in PATH.
-# If no gcc found in PATH with listed prefixes return nothing
-#
-# Note: '2>/dev/null' is here to force Make to invoke a shell. Otherwise, it
-# would try to directly execute the shell builtin 'command'. This workaround
-# should be kept for a long time since this issue was fixed only after the
-# GNU Make 4.2.1 release.
-cc-cross-prefix = $(firstword $(foreach c, $(1), \
-			$(if $(shell command -v -- $(c)gcc 2>/dev/null), $(c))))
-
-# output directory for tests below
-TMPOUT = $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_$$$$
-
-# try-run
-# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
-# Exit code chooses option. "$$TMP" serves as a temporary file and is
-# automatically cleaned up.
-try-run = $(shell set -e;		\
-	TMP=$(TMPOUT)/tmp;		\
-	TMPO=$(TMPOUT)/tmp.o;		\
-	mkdir -p $(TMPOUT);		\
-	trap "rm -rf $(TMPOUT)" EXIT;	\
-	if ($(1)) >/dev/null 2>&1;	\
-	then echo "$(2)";		\
-	else echo "$(3)";		\
-	fi)
-
-# as-option
-# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
-
-as-option = $(call try-run,\
-	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
-
-# as-instr
-# Usage: cflags-y += $(call as-instr,instr,option1,option2)
-
-as-instr = $(call try-run,\
-	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
-
-# __cc-option
-# Usage: MY_CFLAGS += $(call __cc-option,$(CC),$(MY_CFLAGS),-march=winchip-c6,-march=i586)
-__cc-option = $(call try-run,\
-	$(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
-
-# cc-option
-# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
-
-cc-option = $(call __cc-option, $(CC),\
-	$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS),$(1),$(2))
-
-# cc-option-yn
-# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
-cc-option-yn = $(call try-run,\
-	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
-
-# cc-disable-warning
-# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
-cc-disable-warning = $(call try-run,\
-	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
-
-# cc-ifversion
-# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
-cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || echo $(4))
-
-# ld-option
-# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
-ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
-
-# ld-ifversion
-# Usage:  $(call ld-ifversion, -ge, 22252, y)
-ld-ifversion = $(shell [ $(CONFIG_LD_VERSION)0 $(1) $(2)0 ] && echo $(3) || echo $(4))
-
-######
-
 ###
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
 # Usage:
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 58fdb5308725..0496efd6e117 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -45,6 +45,12 @@ $(error-if,$(success,test -z "$(cc-info)"),Sorry$(comma) this compiler is not su
 cc-name := $(shell,set -- $(cc-info) && echo $1)
 cc-version := $(shell,set -- $(cc-info) && echo $2)
 
+# Get the assembler name, version, and error out if it is not supported.
+as-info := $(shell,$(srctree)/scripts/as-version.sh $(CC) $(CLANG_FLAGS))
+$(error-if,$(success,test -z "$(as-info)"),Sorry$(comma) this assembler is not supported.)
+as-name := $(shell,set -- $(as-info) && echo $1)
+as-version := $(shell,set -- $(as-info) && echo $2)
+
 # Get the linker name, version, and error out if it is not supported.
 ld-info := $(shell,$(srctree)/scripts/ld-version.sh $(LD))
 $(error-if,$(success,test -z "$(ld-info)"),Sorry$(comma) this linker is not supported.)
diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index 82ad63dcd62b..1d501c57f9ef 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -14,10 +14,10 @@ src := $(subst /generated,,$(obj))
 
 # $(generic)/Kbuild lists mandatory-y. Exclude um since it is a special case.
 ifneq ($(SRCARCH),um)
-include $(generic)/Kbuild
+include $(srctree)/$(generic)/Kbuild
 endif
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 redundant := $(filter $(mandatory-y) $(generated-y), $(generic-y))
 redundant += $(foreach f, $(generic-y), $(if $(wildcard $(srctree)/$(src)/$(f)),$(f)))
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1b6094a13034..5e39b0517186 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -35,27 +35,28 @@ subdir-ccflags-y :=
 # Read auto.conf if it exists, otherwise ignore
 -include include/config/auto.conf
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
+include $(srctree)/scripts/Makefile.compiler
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
 kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
 include $(kbuild-file)
 
-include scripts/Makefile.lib
+include $(srctree)/scripts/Makefile.lib
 
 # Do not include hostprogs rules unless needed.
 # $(sort ...) is used here to remove duplicated words and excessive spaces.
 hostprogs := $(sort $(hostprogs))
 ifneq ($(hostprogs),)
-include scripts/Makefile.host
+include $(srctree)/scripts/Makefile.host
 endif
 
 # Do not include userprogs rules unless needed.
 # $(sort ...) is used here to remove duplicated words and excessive spaces.
 userprogs := $(sort $(userprogs))
 ifneq ($(userprogs),)
-include scripts/Makefile.userprogs
+include $(srctree)/scripts/Makefile.userprogs
 endif
 
 ifndef obj
@@ -238,8 +239,8 @@ endif # CONFIG_STACK_VALIDATION
 
 # Rebuild all objects when objtool changes, or is enabled/disabled.
 objtool_dep = $(objtool_obj)					\
-	      $(wildcard include/config/orc/unwinder.h		\
-			 include/config/stack/validation.h)
+	      $(wildcard include/config/ORC_UNWINDER		\
+			 include/config/STACK_VALIDATION)
 
 ifdef CONFIG_TRIM_UNUSED_KSYMS
 cmd_gen_ksymdeps = \
@@ -444,11 +445,11 @@ quiet_cmd_link_multi-m = LD [M]  $@
       cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(filter %.o,$^)
 endif
 
-$(multi-used-m): FORCE
+$(multi-obj-m): FORCE
 	$(call if_changed,link_multi-m)
-$(call multi_depend, $(multi-used-m), .o, -objs -y -m)
+$(call multi_depend, $(multi-obj-m), .o, -objs -y -m)
 
-targets += $(multi-used-m)
+targets += $(multi-obj-m)
 targets := $(filter-out $(PHONY), $(targets))
 
 # Add intermediate targets:
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index 22a8172bce1f..fd6175322470 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -8,7 +8,7 @@ src := $(obj)
 PHONY := __clean
 __clean:
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
diff --git a/scripts/Makefile.compiler b/scripts/Makefile.compiler
new file mode 100644
index 000000000000..86ecd2ac874c
--- /dev/null
+++ b/scripts/Makefile.compiler
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first <prefix> where a <prefix>gcc is found in PATH.
+# If no gcc found in PATH with listed prefixes return nothing
+#
+# Note: '2>/dev/null' is here to force Make to invoke a shell. Otherwise, it
+# would try to directly execute the shell builtin 'command'. This workaround
+# should be kept for a long time since this issue was fixed only after the
+# GNU Make 4.2.1 release.
+cc-cross-prefix = $(firstword $(foreach c, $(1), \
+			$(if $(shell command -v -- $(c)gcc 2>/dev/null), $(c))))
+
+# output directory for tests below
+TMPOUT = $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_$$$$
+
+# try-run
+# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
+# Exit code chooses option. "$$TMP" serves as a temporary file and is
+# automatically cleaned up.
+try-run = $(shell set -e;		\
+	TMP=$(TMPOUT)/tmp;		\
+	mkdir -p $(TMPOUT);		\
+	trap "rm -rf $(TMPOUT)" EXIT;	\
+	if ($(1)) >/dev/null 2>&1;	\
+	then echo "$(2)";		\
+	else echo "$(3)";		\
+	fi)
+
+# as-option
+# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
+
+as-option = $(call try-run,\
+	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
+
+# as-instr
+# Usage: cflags-y += $(call as-instr,instr,option1,option2)
+
+as-instr = $(call try-run,\
+	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
+
+# __cc-option
+# Usage: MY_CFLAGS += $(call __cc-option,$(CC),$(MY_CFLAGS),-march=winchip-c6,-march=i586)
+__cc-option = $(call try-run,\
+	$(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
+
+# cc-option
+# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
+
+cc-option = $(call __cc-option, $(CC),\
+	$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS),$(1),$(2))
+
+# cc-option-yn
+# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
+cc-option-yn = $(call try-run,\
+	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
+
+# cc-disable-warning
+# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
+cc-disable-warning = $(call try-run,\
+	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
+
+# cc-ifversion
+# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
+cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || echo $(4))
+
+# ld-option
+# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
+ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
+
+# ld-ifversion
+# Usage:  $(call ld-ifversion, -ge, 22252, y)
+ld-ifversion = $(shell [ $(CONFIG_LD_VERSION)0 $(1) $(2)0 ] && echo $(3) || echo $(4))
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index ba01f5ba2517..190d781e84f4 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -14,7 +14,7 @@ PHONY := __dtbs_install
 __dtbs_install:
 
 include include/config/auto.conf
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 include $(src)/Makefile
 
 dtbs    := $(addprefix $(dst)/, $(dtb-y) $(if $(CONFIG_OF_ALL_DTBS),$(dtb-)))
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 708fbd08a2c5..029d85bb0b23 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -12,7 +12,7 @@
 PHONY := __headers
 __headers:
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 src := $(srctree)/$(obj)
 gen := $(objtree)/$(subst include/,include/generated/,$(obj))
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 659bddbd55e2..64daf37e874b 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -45,16 +45,16 @@ obj-y		:= $(filter-out %/, $(obj-y))
 endif
 
 # Expand $(foo-objs) $(foo-y) by calling $(call suffix-search,foo.o,-objs -y)
-suffix-search = $(foreach s,$(2),$($(1:.o=$s)))
+suffix-search = $(strip $(foreach s, $2, $($(1:.o=$s))))
 # If $(foo-objs), $(foo-y), $(foo-m), or $(foo-) exists, foo.o is a composite object
-multi-search = $(sort $(foreach m,$(1), $(if $(strip $(call suffix-search,$(m),$(2) -)), $(m))))
-multi-used-y := $(call multi-search,$(obj-y),-objs -y)
-multi-used-m := $(call multi-search,$(obj-m),-objs -y -m)
-multi-used   := $(multi-used-y) $(multi-used-m)
+multi-search = $(sort $(foreach m, $1, $(if $(call suffix-search, $m, $2 -), $m)))
+multi-obj-y := $(call multi-search,$(obj-y),-objs -y)
+multi-obj-m := $(call multi-search,$(obj-m),-objs -y -m)
+multi-obj-ym := $(multi-obj-y) $(multi-obj-m)
 
 # Replace multi-part objects by their individual parts,
 # including built-in.a from subdirectories
-real-search = $(foreach m,$(1), $(if $(strip $(call suffix-search,$(m),$(2) -)),$(call suffix-search,$(m),$(2)),$(m)))
+real-search = $(foreach m, $1, $(if $(call suffix-search, $m, $2 -), $(call suffix-search, $m, $2), $m))
 real-obj-y := $(call real-search, $(obj-y),-objs -y)
 real-obj-m := $(call real-search, $(obj-m),-objs -y -m)
 
@@ -104,12 +104,12 @@ obj-m		:= $(addprefix $(obj)/,$(obj-m))
 lib-y		:= $(addprefix $(obj)/,$(lib-y))
 real-obj-y	:= $(addprefix $(obj)/,$(real-obj-y))
 real-obj-m	:= $(addprefix $(obj)/,$(real-obj-m))
-multi-used-m	:= $(addprefix $(obj)/,$(multi-used-m))
+multi-obj-m	:= $(addprefix $(obj)/, $(multi-obj-m))
 subdir-ym	:= $(addprefix $(obj)/,$(subdir-ym))
 
 # Finds the multi-part object the current object will be linked into.
 # If the object belongs to two or more multi-part objects, list them all.
-modname-multi = $(sort $(foreach m,$(multi-used),\
+modname-multi = $(sort $(foreach m,$(multi-obj-ym),\
 		$(if $(filter $*.o, $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$(m:.o=))))
 
 __modname = $(if $(modname-multi),$(modname-multi),$(basetarget))
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 5a4579e76485..ff9b09e4cfca 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -6,30 +6,109 @@
 PHONY := __modinst
 __modinst:
 
-include scripts/Kbuild.include
+include include/config/auto.conf
+include $(srctree)/scripts/Kbuild.include
 
-modules := $(sort $(shell cat $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/)modules.order))
+modules := $(sort $(shell cat $(MODORDER)))
+
+ifeq ($(KBUILD_EXTMOD),)
+dst := $(MODLIB)/kernel
+else
+INSTALL_MOD_DIR ?= extra
+dst := $(MODLIB)/$(INSTALL_MOD_DIR)
+endif
+
+suffix-y				:=
+suffix-$(CONFIG_MODULE_COMPRESS_GZIP)	:= .gz
+suffix-$(CONFIG_MODULE_COMPRESS_XZ)	:= .xz
+suffix-$(CONFIG_MODULE_COMPRESS_ZSTD)	:= .zst
+
+modules := $(patsubst $(extmod_prefix)%, $(dst)/%$(suffix-y), $(modules))
 
-PHONY += $(modules)
 __modinst: $(modules)
 	@:
 
-# Don't stop modules_install if we can't sign external modules.
-quiet_cmd_modules_install = INSTALL $@
-      cmd_modules_install = \
-    mkdir -p $(2) ; \
-    cp $@ $(2) ; \
-    $(mod_strip_cmd) $(2)/$(notdir $@) ; \
-    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) ; \
-    $(mod_compress_cmd) $(2)/$(notdir $@)
+quiet_cmd_none =
+      cmd_none = :
 
-# Modules built outside the kernel source tree go into extra by default
-INSTALL_MOD_DIR ?= extra
-ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(patsubst %/,%,$(KBUILD_EXTMOD)),,$(@D))
+#
+# Installation
+#
+quiet_cmd_install = INSTALL $@
+      cmd_install = mkdir -p $(dir $@); cp $< $@
+
+# Strip
+#
+# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they
+# are installed. If INSTALL_MOD_STRIP is '1', then the default option
+# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used
+# as the options to the strip command.
+ifdef INSTALL_MOD_STRIP
+
+ifeq ($(INSTALL_MOD_STRIP),1)
+strip-option := --strip-debug
+else
+strip-option := $(INSTALL_MOD_STRIP)
+endif
+
+quiet_cmd_strip = STRIP   $@
+      cmd_strip = $(STRIP) $(strip-option) $@
+
+else
+
+quiet_cmd_strip =
+      cmd_strip = :
+
+endif
+
+#
+# Signing
+# Don't stop modules_install even if we can't sign external modules.
+#
+ifeq ($(CONFIG_MODULE_SIG_ALL),y)
+quiet_cmd_sign = SIGN    $@
+$(eval $(call config_filename,MODULE_SIG_KEY))
+      cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY) certs/signing_key.x509 $@ \
+                 $(if $(KBUILD_EXTMOD),|| true)
+else
+quiet_cmd_sign :=
+      cmd_sign := :
+endif
+
+ifeq ($(modules_sign_only),)
+
+$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
+	$(call cmd,install)
+	$(call cmd,strip)
+	$(call cmd,sign)
+
+else
+
+$(dst)/%.ko: FORCE
+	$(call cmd,sign)
+
+endif
+
+#
+# Compression
+#
+quiet_cmd_gzip = GZIP    $@
+      cmd_gzip = $(KGZIP) -n -f $<
+quiet_cmd_xz = XZ      $@
+      cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
+quiet_cmd_zstd = ZSTD    $@
+      cmd_zstd = $(ZSTD) -T0 --rm -f -q $<
+
+$(dst)/%.ko.gz: $(dst)/%.ko FORCE
+	$(call cmd,gzip)
+
+$(dst)/%.ko.xz: $(dst)/%.ko FORCE
+	$(call cmd,xz)
 
-modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D))
+$(dst)/%.ko.zst: $(dst)/%.ko FORCE
+	$(call cmd,zstd)
 
-$(modules):
-	$(call cmd,modules_install,$(MODLIB)/$(modinst_dir))
+PHONY += FORCE
+FORCE:
 
 .PHONY: $(PHONY)
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 066beffca09a..c383ba33d837 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -32,8 +32,6 @@
 # Step 4 is solely used to allow module versioning in external modules,
 # where the CRC of each module is retrieved from the Module.symvers file.
 
-# KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined
-# symbols in the final module linking stage
 # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
 # This is solely useful to speed up test compiles
 
@@ -41,16 +39,15 @@ PHONY := __modpost
 __modpost:
 
 include include/config/auto.conf
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 # for ld_flags
-include scripts/Makefile.lib
+include $(srctree)/scripts/Makefile.lib
 
 MODPOST = scripts/mod/modpost								\
 	$(if $(CONFIG_MODVERSIONS),-m)							\
 	$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a)					\
 	$(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E)					\
-	$(if $(KBUILD_MODPOST_WARN),-w) \
 	-o $@
 
 ifdef MODPOST_VMLINUX
@@ -68,7 +65,20 @@ else
 ifeq ($(KBUILD_EXTMOD),)
 
 input-symdump := vmlinux.symvers
-output-symdump := Module.symvers
+output-symdump := modules-only.symvers
+
+quiet_cmd_cat = GEN     $@
+      cmd_cat = cat $(real-prereqs) > $@
+
+ifneq ($(wildcard vmlinux.symvers),)
+
+__modpost: Module.symvers
+Module.symvers: vmlinux.symvers modules-only.symvers FORCE
+	$(call if_changed,cat)
+
+targets += Module.symvers
+
+endif
 
 else
 
@@ -88,9 +98,11 @@ output-symdump := $(KBUILD_EXTMOD)/Module.symvers
 
 endif
 
+existing-input-symdump := $(wildcard $(input-symdump))
+
 # modpost options for modules (both in-kernel and external)
 MODPOST += \
-	$(addprefix -i ,$(wildcard $(input-symdump))) \
+	$(addprefix -i ,$(existing-input-symdump)) \
 	$(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \
 	$(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N)
 
@@ -104,6 +116,7 @@ VPATH :=
 $(input-symdump):
 	@echo >&2 'WARNING: Symbol version dump "$@" is missing.'
 	@echo >&2 '         Modules may not have dependencies or modversions.'
+	@echo >&2 '         You may get many unresolved symbol warnings.'
 
 ifdef CONFIG_LTO_CLANG
 # With CONFIG_LTO_CLANG, .o files might be LLVM bitcode, so we need to run
@@ -123,6 +136,11 @@ endif
 
 modules := $(sort $(shell cat $(MODORDER)))
 
+# KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined symbols
+ifneq ($(KBUILD_MODPOST_WARN)$(filter-out $(existing-input-symdump), $(input-symdump)),)
+MODPOST += -w
+endif
+
 # Read out modules.order to pass in modpost.
 # Otherwise, allmodconfig would fail with "Argument list too long".
 quiet_cmd_modpost = MODPOST $@
diff --git a/scripts/Makefile.modsign b/scripts/Makefile.modsign
deleted file mode 100644
index d7325cefe709..000000000000
--- a/scripts/Makefile.modsign
+++ /dev/null
@@ -1,29 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-# ==========================================================================
-# Signing modules
-# ==========================================================================
-
-PHONY := __modsign
-__modsign:
-
-include scripts/Kbuild.include
-
-modules := $(sort $(shell cat modules.order))
-
-PHONY += $(modules)
-__modsign: $(modules)
-	@:
-
-quiet_cmd_sign_ko = SIGN [M] $(2)/$(notdir $@)
-        cmd_sign_ko = $(mod_sign_cmd) $(2)/$(notdir $@)
-
-# Modules built outside the kernel source tree go into extra by default
-INSTALL_MOD_DIR ?= extra
-ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(patsubst %/,%,$(KBUILD_EXTMOD)),,$(@D))
-
-modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D))
-
-$(modules):
-	$(call cmd,sign_ko,$(MODLIB)/$(modinst_dir))
-
-.PHONY: $(PHONY)
diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index f952fb64789d..b74c65284fb2 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -25,7 +25,7 @@ include $(srctree)/scripts/Kbuild.include
 
 # Remove hyphens since they have special meaning in RPM filenames
 KERNELPATH := kernel-$(subst -,_,$(KERNELRELEASE))
-KDEB_SOURCENAME ?= linux-$(KERNELRELEASE)
+KDEB_SOURCENAME ?= linux-upstream
 KBUILD_PKG_ROOTCMD ?="fakeroot -u"
 export KDEB_SOURCENAME
 # Include only those top-level files that are needed by make, plus the GPL copy
diff --git a/scripts/as-version.sh b/scripts/as-version.sh
new file mode 100755
index 000000000000..8b9410e329df
--- /dev/null
+++ b/scripts/as-version.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Print the assembler name and its version in a 5 or 6-digit form.
+# Also, perform the minimum version check.
+# (If it is the integrated assembler, return 0 as the version, and
+# skip the version check.)
+
+set -e
+
+# Convert the version string x.y.z to a canonical 5 or 6-digit form.
+get_canonical_version()
+{
+	IFS=.
+	set -- $1
+
+	# If the 2nd or 3rd field is missing, fill it with a zero.
+	#
+	# The 4th field, if present, is ignored.
+	# This occurs in development snapshots as in 2.35.1.20201116
+	echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
+}
+
+# Clang fails to handle -Wa,--version unless -no-integrated-as is given.
+# We check -(f)integrated-as, expecting it is explicitly passed in for the
+# integrated assembler case.
+check_integrated_as()
+{
+	while [ $# -gt 0 ]; do
+		if [ "$1" = -integrated-as -o "$1" = -fintegrated-as ]; then
+			# For the intergrated assembler, we do not check the
+			# version here. It is the same as the clang version, and
+			# it has been already checked by scripts/cc-version.sh.
+			echo LLVM 0
+			exit 0
+		fi
+		shift
+	done
+}
+
+check_integrated_as "$@"
+
+orig_args="$@"
+
+# Get the first line of the --version output.
+IFS='
+'
+set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler /dev/null -o /dev/null 2>/dev/null)
+
+# Split the line on spaces.
+IFS=' '
+set -- $1
+
+min_tool_version=$(dirname $0)/min-tool-version.sh
+
+if [ "$1" = GNU -a "$2" = assembler ]; then
+	shift $(($# - 1))
+	version=$1
+	min_version=$($min_tool_version binutils)
+	name=GNU
+else
+	echo "$orig_args: unknown assembler invoked" >&2
+	exit 1
+fi
+
+# Some distributions append a package release number, as in 2.34-4.fc32
+# Trim the hyphen and any characters that follow.
+version=${version%-*}
+
+cversion=$(get_canonical_version $version)
+min_cversion=$(get_canonical_version $min_version)
+
+if [ "$cversion" -lt "$min_cversion" ]; then
+	echo >&2 "***"
+	echo >&2 "*** Assembler is too old."
+	echo >&2 "***   Your $name assembler version:    $version"
+	echo >&2 "***   Minimum $name assembler version: $min_version"
+	echo >&2 "***"
+	exit 1
+fi
+
+echo $name $cversion
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index d98540552941..44e887cff49b 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -34,7 +34,7 @@
  * the config symbols are rebuilt.
  *
  * So if the user changes his CONFIG_HIS_DRIVER option, only the objects
- * which depend on "include/config/his/driver.h" will be rebuilt,
+ * which depend on "include/config/HIS_DRIVER" will be rebuilt,
  * so most likely only his driver ;-)
  *
  * The idea above dates, by the way, back to Michael E Chastain, AFAIK.
@@ -74,7 +74,7 @@
  *
  * and then basically copies the .<target>.d file to stdout, in the
  * process filtering out the dependency on autoconf.h and adding
- * dependencies on include/config/my/option.h for every
+ * dependencies on include/config/MY_OPTION for every
  * CONFIG_MY_OPTION encountered in any of the prerequisites.
  *
  * We don't even try to really parse the header files, but
@@ -107,8 +107,8 @@ static void usage(void)
 
 /*
  * In the intended usage of this program, the stdout is redirected to .*.cmd
- * files. The return value of printf() and putchar() must be checked to catch
- * any error, e.g. "No space left on device".
+ * files. The return value of printf() must be checked to catch any error,
+ * e.g. "No space left on device".
  */
 static void xprintf(const char *format, ...)
 {
@@ -124,38 +124,6 @@ static void xprintf(const char *format, ...)
 	va_end(ap);
 }
 
-static void xputchar(int c)
-{
-	int ret;
-
-	ret = putchar(c);
-	if (ret == EOF) {
-		perror("fixdep");
-		exit(1);
-	}
-}
-
-/*
- * Print out a dependency path from a symbol name
- */
-static void print_dep(const char *m, int slen, const char *dir)
-{
-	int c, prev_c = '/', i;
-
-	xprintf("    $(wildcard %s/", dir);
-	for (i = 0; i < slen; i++) {
-		c = m[i];
-		if (c == '_')
-			c = '/';
-		else
-			c = tolower(c);
-		if (c != '/' || prev_c != '/')
-			xputchar(c);
-		prev_c = c;
-	}
-	xprintf(".h) \\\n");
-}
-
 struct item {
 	struct item	*next;
 	unsigned int	len;
@@ -220,7 +188,8 @@ static void use_config(const char *m, int slen)
 	    return;
 
 	define_config(m, slen, hash);
-	print_dep(m, slen, "include/config");
+	/* Print out a dependency path from a symbol name. */
+	xprintf("    $(wildcard include/config/%.*s) \\\n", slen, m);
 }
 
 /* test if s ends in sub */
diff --git a/scripts/cc-version.sh b/scripts/cc-version.sh
index 3f2ee885b116..f1952c522466 100755
--- a/scripts/cc-version.sh
+++ b/scripts/cc-version.sh
@@ -6,18 +6,6 @@
 
 set -e
 
-# When you raise the minimum compiler version, please update
-# Documentation/process/changes.rst as well.
-gcc_min_version=4.9.0
-clang_min_version=10.0.1
-icc_min_version=16.0.3 # temporary
-
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
-# https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
-if [ "$SRCARCH" = arm64 ]; then
-	gcc_min_version=5.1.0
-fi
-
 # Print the compiler name and some version components.
 get_compiler_info()
 {
@@ -48,18 +36,20 @@ set -- $(get_compiler_info "$@")
 
 name=$1
 
+min_tool_version=$(dirname $0)/min-tool-version.sh
+
 case "$name" in
 GCC)
 	version=$2.$3.$4
-	min_version=$gcc_min_version
+	min_version=$($min_tool_version gcc)
 	;;
 Clang)
 	version=$2.$3.$4
-	min_version=$clang_min_version
+	min_version=$($min_tool_version llvm)
 	;;
 ICC)
 	version=$(($2 / 100)).$(($2 % 100)).$3
-	min_version=$icc_min_version
+	min_version=$($min_tool_version icc)
 	;;
 *)
 	echo "$orig_args: unknown compiler" >&2
diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc
index 39e65fee59bd..f6d543725f1e 100755
--- a/scripts/dummy-tools/gcc
+++ b/scripts/dummy-tools/gcc
@@ -67,6 +67,12 @@ if arg_contain -E "$@"; then
 	fi
 fi
 
+# To set CONFIG_AS_IS_GNU
+if arg_contain -Wa,--version "$@"; then
+	echo "GNU assembler (scripts/dummy-tools) 2.50"
+	exit 0
+fi
+
 if arg_contain -S "$@"; then
 	# For scripts/gcc-x86-*-has-stack-protector.sh
 	if arg_contain -fstack-protector "$@"; then
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 2568dbe16ed6..c7b7e1c62a9c 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -130,19 +130,14 @@ static size_t depfile_prefix_len;
 static int conf_touch_dep(const char *name)
 {
 	int fd, ret;
-	const char *s;
-	char *d, c;
+	char *d;
 
-	/* check overflow: prefix + name + ".h" + '\0' must fit in buffer. */
-	if (depfile_prefix_len + strlen(name) + 3 > sizeof(depfile_path))
+	/* check overflow: prefix + name + '\0' must fit in buffer. */
+	if (depfile_prefix_len + strlen(name) + 1 > sizeof(depfile_path))
 		return -1;
 
 	d = depfile_path + depfile_prefix_len;
-	s = name;
-
-	while ((c = *s++))
-		*d++ = (c == '_') ? '/' : tolower(c);
-	strcpy(d, ".h");
+	strcpy(d, name);
 
 	/* Assume directory path already exists. */
 	fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
@@ -465,7 +460,7 @@ load:
 					 * Reading from include/config/auto.conf
 					 * If CONFIG_FOO previously existed in
 					 * auto.conf but it is missing now,
-					 * include/config/foo.h must be touched.
+					 * include/config/FOO must be touched.
 					 */
 					conf_touch_dep(line + strlen(CONFIG_));
 				else
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index 1bf3aadde9de..a78b804b680c 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -6,11 +6,6 @@
 
 set -e
 
-# When you raise the minimum linker version, please update
-# Documentation/process/changes.rst as well.
-bfd_min_version=2.23.0
-lld_min_version=10.0.1
-
 # Convert the version string x.y.z to a canonical 5 or 6-digit form.
 get_canonical_version()
 {
@@ -35,10 +30,12 @@ set -- $(LC_ALL=C "$@" --version)
 IFS=' '
 set -- $1
 
+min_tool_version=$(dirname $0)/min-tool-version.sh
+
 if [ "$1" = GNU -a "$2" = ld ]; then
 	shift $(($# - 1))
 	version=$1
-	min_version=$bfd_min_version
+	min_version=$($min_tool_version binutils)
 	name=BFD
 	disp_name="GNU ld"
 elif [ "$1" = GNU -a "$2" = gold ]; then
@@ -51,7 +48,7 @@ else
 
 	if [ "$1" = LLD ]; then
 		version=$2
-		min_version=$lld_min_version
+		min_version=$($min_tool_version llvm)
 		name=LLD
 		disp_name=LLD
 	else
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 667aacb9261c..7d112681f332 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -155,6 +155,7 @@ vmlinux_link()
 	local output=${1}
 	local objects
 	local strip_debug
+	local map_option
 
 	info LD ${output}
 
@@ -166,6 +167,10 @@ vmlinux_link()
 		strip_debug=-Wl,--strip-debug
 	fi
 
+	if [ -n "${CONFIG_VMLINUX_MAP}" ]; then
+		map_option="-Map=${output}.map"
+	fi
+
 	if [ "${SRCARCH}" != "um" ]; then
 		if [ -n "${CONFIG_LTO_CLANG}" ]; then
 			# Use vmlinux.o instead of performing the slow LTO
@@ -187,6 +192,7 @@ vmlinux_link()
 		${LD} ${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux}	\
 			${strip_debug#-Wl,}			\
 			-o ${output}				\
+			${map_option}				\
 			-T ${lds} ${objects}
 	else
 		objects="-Wl,--whole-archive			\
@@ -200,6 +206,7 @@ vmlinux_link()
 		${CC} ${CFLAGS_vmlinux}				\
 			${strip_debug}				\
 			-o ${output}				\
+			${map_option:+-Wl,${map_option}}	\
 			-Wl,-T,${lds}				\
 			${objects}				\
 			-lutil -lrt -lpthread
@@ -308,7 +315,9 @@ cleanup()
 	rm -f .tmp_vmlinux*
 	rm -f System.map
 	rm -f vmlinux
+	rm -f vmlinux.map
 	rm -f vmlinux.o
+	rm -f .vmlinux.d
 }
 
 on_exit()
@@ -446,3 +455,6 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then
 		exit 1
 	fi
 fi
+
+# For fixdep
+echo "vmlinux: $0" > .vmlinux.d
diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh
new file mode 100755
index 000000000000..d22cf91212b0
--- /dev/null
+++ b/scripts/min-tool-version.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Print the minimum supported version of the given tool.
+# When you raise the minimum version, please update
+# Documentation/process/changes.rst as well.
+
+set -e
+
+if [ $# != 1 ]; then
+	echo "Usage: $0 toolname" >&2
+	exit 1
+fi
+
+case "$1" in
+binutils)
+	echo 2.23.0
+	;;
+gcc)
+	# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
+	# https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
+	if [ "$SRCARCH" = arm64 ]; then
+		echo 5.1.0
+	else
+		echo 4.9.0
+	fi
+	;;
+icc)
+	# temporary
+	echo 16.0.3
+	;;
+llvm)
+	echo 10.0.1
+	;;
+*)
+	echo "$1: unknown tool" >&2
+	exit 1
+	;;
+esac
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 24725e50c7b4..3e623ccc020b 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -23,8 +23,6 @@
 
 /* Are we using CONFIG_MODVERSIONS? */
 static int modversions = 0;
-/* Warn about undefined symbols? (do so if we have vmlinux) */
-static int have_vmlinux = 0;
 /* Is CONFIG_MODULE_SRCVERSION_ALL set? */
 static int all_versions = 0;
 /* If we are modposting external module set to 1 */
@@ -41,6 +39,13 @@ static int allow_missing_ns_imports;
 
 static bool error_occurred;
 
+/*
+ * Cut off the warnings when there are too many. This typically occurs when
+ * vmlinux is missing. ('make modules' without building vmlinux.)
+ */
+#define MAX_UNRESOLVED_REPORTS	10
+static unsigned int nr_unresolved;
+
 enum export {
 	export_plain,
 	export_gpl,
@@ -177,9 +182,6 @@ static struct module *new_module(const char *modname)
 	mod->next = modules;
 	modules = mod;
 
-	if (mod->is_vmlinux)
-		have_vmlinux = 1;
-
 	return mod;
 }
 
@@ -202,7 +204,7 @@ struct symbol {
 
 static struct symbol *symbolhash[SYMBOL_HASH_SIZE];
 
-/* This is based on the hash agorithm from gdbm, via tdb */
+/* This is based on the hash algorithm from gdbm, via tdb */
 static inline unsigned int tdb_hash(const char *name)
 {
 	unsigned value;	/* Used to compute the hash value.  */
@@ -985,7 +987,7 @@ enum mismatch {
 };
 
 /**
- * Describe how to match sections on different criterias:
+ * Describe how to match sections on different criteria:
  *
  * @fromsec: Array of sections to be matched.
  *
@@ -993,12 +995,12 @@ enum mismatch {
  * this array is forbidden (black-list).  Can be empty.
  *
  * @good_tosec: Relocations applied to a section in @fromsec must be
- * targetting sections in this array (white-list).  Can be empty.
+ * targeting sections in this array (white-list).  Can be empty.
  *
  * @mismatch: Type of mismatch.
  *
  * @symbol_white_list: Do not match a relocation to a symbol in this list
- * even if it is targetting a section in @bad_to_sec.
+ * even if it is targeting a section in @bad_to_sec.
  *
  * @handler: Specific handler to call when a match is found.  If NULL,
  * default_mismatch_handler() will be called.
@@ -2141,7 +2143,7 @@ static void check_exports(struct module *mod)
 		const char *basename;
 		exp = find_symbol(s->name);
 		if (!exp || exp->module == mod) {
-			if (have_vmlinux && !s->weak)
+			if (!s->weak && nr_unresolved++ < MAX_UNRESOLVED_REPORTS)
 				modpost_log(warn_unresolved ? LOG_WARN : LOG_ERROR,
 					    "\"%s\" [%s.ko] undefined!\n",
 					    s->name, mod->name);
@@ -2191,10 +2193,12 @@ static void add_header(struct buffer *b, struct module *mod)
 	 */
 	buf_printf(b, "#define INCLUDE_VERMAGIC\n");
 	buf_printf(b, "#include <linux/build-salt.h>\n");
+	buf_printf(b, "#include <linux/elfnote-lto.h>\n");
 	buf_printf(b, "#include <linux/vermagic.h>\n");
 	buf_printf(b, "#include <linux/compiler.h>\n");
 	buf_printf(b, "\n");
 	buf_printf(b, "BUILD_SALT;\n");
+	buf_printf(b, "BUILD_LTO_INFO;\n");
 	buf_printf(b, "\n");
 	buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
 	buf_printf(b, "MODULE_INFO(name, KBUILD_MODNAME);\n");
@@ -2423,19 +2427,6 @@ fail:
 	fatal("parse error in symbol dump file\n");
 }
 
-/* For normal builds always dump all symbols.
- * For external modules only dump symbols
- * that are not read from kernel Module.symvers.
- **/
-static int dump_sym(struct symbol *sym)
-{
-	if (!external_module)
-		return 1;
-	if (sym->module->from_dump)
-		return 0;
-	return 1;
-}
-
 static void write_dump(const char *fname)
 {
 	struct buffer buf = { };
@@ -2446,7 +2437,7 @@ static void write_dump(const char *fname)
 	for (n = 0; n < SYMBOL_HASH_SIZE ; n++) {
 		symbol = symbolhash[n];
 		while (symbol) {
-			if (dump_sym(symbol)) {
+			if (!symbol->module->from_dump) {
 				namespace = symbol->namespace;
 				buf_printf(&buf, "0x%08x\t%s\t%s\t%s\t%s\n",
 					   symbol->crc, symbol->name,
@@ -2558,13 +2549,6 @@ int main(int argc, char **argv)
 	if (files_source)
 		read_symbols_from_files(files_source);
 
-	/*
-	 * When there's no vmlinux, don't print warnings about
-	 * unresolved symbols (since there'll be too many ;)
-	 */
-	if (!have_vmlinux)
-		warn("Symbol info of vmlinux is missing. Unresolved symbol check will be entirely skipped.\n");
-
 	for (mod = modules; mod; mod = mod->next) {
 		char fname[PATH_MAX];
 
@@ -2608,6 +2592,10 @@ int main(int argc, char **argv)
 		}
 	}
 
+	if (nr_unresolved > MAX_UNRESOLVED_REPORTS)
+		warn("suppressed %u unresolved symbol warnings because there were too many)\n",
+		     nr_unresolved - MAX_UNRESOLVED_REPORTS);
+
 	free(buf.p);
 
 	return error_occurred ? 1 : 0;
diff --git a/scripts/modules-check.sh b/scripts/modules-check.sh
index 43de226071ae..e06327722263 100755
--- a/scripts/modules-check.sh
+++ b/scripts/modules-check.sh
@@ -13,10 +13,10 @@ exit_code=0
 # Check uniqueness of module names
 check_same_name_modules()
 {
-	for m in $(sed 's:.*/::' $1 | sort | uniq -d)
+	for m in $(sed 's:.*/::' "$1" | sort | uniq -d)
 	do
 		echo "error: the following would cause module name conflict:" >&2
-		sed -n "/\/$m/s:^:  :p" modules.order >&2
+		sed -n "/\/$m/s:^:  :p" "$1" >&2
 		exit_code=1
 	done
 }
diff --git a/scripts/test_dwarf5_support.sh b/scripts/test_dwarf5_support.sh
deleted file mode 100755
index c46e2456b47a..000000000000
--- a/scripts/test_dwarf5_support.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-# Test that the assembler doesn't need -Wa,-gdwarf-5 when presented with DWARF
-# v5 input, such as `.file 0` and `md5 0x00`. Should be fixed in GNU binutils
-# 2.35.2. https://sourceware.org/bugzilla/show_bug.cgi?id=25611
-echo '.file 0 "filename" md5 0x7a0b65214090b6693bd1dc24dd248245' | \
-  $* -gdwarf-5 -Wno-unused-command-line-argument -c -x assembler -o /dev/null -