Merge tag 'v5.15' into next

Sync up with the mainline to get the latest APIs and DT bindings.

85 files changed, 1278 insertions, 766 deletions

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 82dd1b65b7a8..cdec22088423 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -57,6 +57,7 @@ kecho := $($(quiet)kecho)
 # - If the content differ the new file is used
 # - If they are equal no change, and no timestamp update
 define filechk
+	$(check-FORCE)
 	$(Q)set -e;						\
 	mkdir -p $(dir $@);					\
 	trap "rm -f $(dot-target).tmp" EXIT;			\
@@ -90,8 +91,13 @@ clean := -f $(srctree)/scripts/Makefile.clean obj
 echo-cmd = $(if $($(quiet)cmd_$(1)),\
 	echo '  $(call escsq,$($(quiet)cmd_$(1)))$(echo-why)';)
 
+# sink stdout for 'make -s'
+       redirect :=
+ quiet_redirect :=
+silent_redirect := exec >/dev/null;
+
 # printing commands
-cmd = @set -e; $(echo-cmd) $(cmd_$(1))
+cmd = @set -e; $(echo-cmd) $($(quiet)redirect) $(cmd_$(1))
 
 ###
 # if_changed      - execute command if any prerequisite is newer than
@@ -125,13 +131,19 @@ make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1))))
 # PHONY targets skipped in both cases.
 newer-prereqs = $(filter-out $(PHONY),$?)
 
+# It is a typical mistake to forget the FORCE prerequisite. Check it here so
+# no more breakage will slip in.
+check-FORCE = $(if $(filter FORCE, $^),,$(warning FORCE prerequisite is missing))
+
+if-changed-cond = $(newer-prereqs)$(cmd-check)$(check-FORCE)
+
 # Execute command if command has changed or prerequisite(s) are updated.
-if_changed = $(if $(newer-prereqs)$(cmd-check),                              \
+if_changed = $(if $(if-changed-cond),                                        \
 	$(cmd);                                                              \
 	printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
 
 # Execute the command and also postprocess generated .d dependencies file.
-if_changed_dep = $(if $(newer-prereqs)$(cmd-check),$(cmd_and_fixdep),@:)
+if_changed_dep = $(if $(if-changed-cond),$(cmd_and_fixdep),@:)
 
 cmd_and_fixdep =                                                             \
 	$(cmd);                                                              \
@@ -141,7 +153,7 @@ cmd_and_fixdep =                                                             \
 # Usage: $(call if_changed_rule,foo)
 # Will check if $(cmd_foo) or any of the prerequisites changed,
 # and if so will execute $(rule_foo).
-if_changed_rule = $(if $(newer-prereqs)$(cmd-check),$(rule_$(1)),@:)
+if_changed_rule = $(if $(if-changed-cond),$(rule_$(1)),@:)
 
 ###
 # why - tell why a target got built
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 949f723efe53..3efc984d4c69 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -88,6 +88,10 @@ endif
 
 targets-for-modules := $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))
 
+ifdef CONFIG_LTO_CLANG
+targets-for-modules += $(patsubst %.o, %.lto.o, $(filter %.o, $(obj-m)))
+endif
+
 ifdef need-modorder
 targets-for-modules += $(obj)/modules.order
 endif
@@ -173,6 +177,8 @@ cmd_modversions_c =								\
 	if $(NM) $@ 2>/dev/null | grep -q __ksymtab; then			\
 		$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
 		    > $@.symversions;						\
+	else									\
+		rm -f $@.symversions;						\
 	fi;
 else
 cmd_modversions_c =								\
@@ -219,7 +225,6 @@ endif # CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT
 
 ifdef CONFIG_STACK_VALIDATION
 ifndef CONFIG_LTO_CLANG
-ifneq ($(SKIP_STACK_VALIDATION),1)
 
 __objtool_obj := $(objtree)/tools/objtool/objtool
 
@@ -233,7 +238,6 @@ objtool_obj = $(if $(patsubst y%,, \
 	$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
 	$(__objtool_obj))
 
-endif # SKIP_STACK_VALIDATION
 endif # CONFIG_LTO_CLANG
 endif # CONFIG_STACK_VALIDATION
 
@@ -268,16 +272,38 @@ define rule_as_o_S
 endef
 
 # Built-in and composite module parts
-$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
+.SECONDEXPANSION:
+$(obj)/%.o: $(src)/%.c $(recordmcount_source) $$(objtool_dep) FORCE
 	$(call if_changed_rule,cc_o_c)
 	$(call cmd,force_checksrc)
 
+ifdef CONFIG_LTO_CLANG
+# Module .o files may contain LLVM bitcode, compile them into native code
+# before ELF processing
+quiet_cmd_cc_lto_link_modules = LTO [M] $@
+cmd_cc_lto_link_modules =						\
+	$(LD) $(ld_flags) -r -o $@					\
+		$(shell [ -s $(@:.lto.o=.o.symversions) ] &&		\
+			echo -T $(@:.lto.o=.o.symversions))		\
+		--whole-archive $(filter-out FORCE,$^)
+
+ifdef CONFIG_STACK_VALIDATION
+# objtool was skipped for LLVM bitcode, run it now that we have compiled
+# modules into native code
+cmd_cc_lto_link_modules += ;						\
+	$(objtree)/tools/objtool/objtool $(objtool_args) --module $@
+endif
+
+$(obj)/%.lto.o: $(obj)/%.o FORCE
+	$(call if_changed,cc_lto_link_modules)
+endif
+
 cmd_mod = { \
 	echo $(if $($*-objs)$($*-y)$($*-m), $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), $(@:.mod=.o)); \
 	$(undefined_syms) echo; \
 	} > $@
 
-$(obj)/%.mod: $(obj)/%.o FORCE
+$(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o FORCE
 	$(call if_changed,mod)
 
 quiet_cmd_cc_lst_c = MKLST   $@
@@ -349,7 +375,7 @@ cmd_modversions_S =								\
 	fi
 endif
 
-$(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
+$(obj)/%.o: $(src)/%.S $$(objtool_dep) FORCE
 	$(call if_changed_rule,as_o_S)
 
 targets += $(filter-out $(subdir-builtin), $(real-obj-y))
@@ -382,12 +408,11 @@ $(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ;
 $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;
 
 # combine symversions for later processing
-quiet_cmd_update_lto_symversions = SYMVER  $@
 ifeq ($(CONFIG_LTO_CLANG) $(CONFIG_MODVERSIONS),y y)
       cmd_update_lto_symversions =					\
 	rm -f $@.symversions						\
 	$(foreach n, $(filter-out FORCE,$^),				\
-		$(if $(wildcard $(n).symversions),			\
+		$(if $(shell test -s $(n).symversions && echo y),	\
 			; cat $(n).symversions >> $@.symversions))
 else
       cmd_update_lto_symversions = echo >/dev/null
diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang
new file mode 100644
index 000000000000..51fc23e2e9e5
--- /dev/null
+++ b/scripts/Makefile.clang
@@ -0,0 +1,40 @@
+# Individual arch/{arch}/Makefiles should use -EL/-EB to set intended
+# endianness and -m32/-m64 to set word size based on Kconfigs instead of
+# relying on the target triple.
+CLANG_TARGET_FLAGS_arm		:= arm-linux-gnueabi
+CLANG_TARGET_FLAGS_arm64	:= aarch64-linux-gnu
+CLANG_TARGET_FLAGS_hexagon	:= hexagon-linux-musl
+CLANG_TARGET_FLAGS_m68k		:= m68k-linux-gnu
+CLANG_TARGET_FLAGS_mips		:= mipsel-linux-gnu
+CLANG_TARGET_FLAGS_powerpc	:= powerpc64le-linux-gnu
+CLANG_TARGET_FLAGS_riscv	:= riscv64-linux-gnu
+CLANG_TARGET_FLAGS_s390		:= s390x-linux-gnu
+CLANG_TARGET_FLAGS_x86		:= x86_64-linux-gnu
+CLANG_TARGET_FLAGS		:= $(CLANG_TARGET_FLAGS_$(SRCARCH))
+
+ifeq ($(CROSS_COMPILE),)
+ifeq ($(CLANG_TARGET_FLAGS),)
+$(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang)
+else
+CLANG_FLAGS	+= --target=$(CLANG_TARGET_FLAGS)
+endif # CLANG_TARGET_FLAGS
+else
+CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif # CROSS_COMPILE
+
+ifeq ($(LLVM_IAS),0)
+CLANG_FLAGS	+= -fno-integrated-as
+GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
+CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
+else
+CLANG_FLAGS	+= -fintegrated-as
+endif
+# By default, clang only warns when it encounters an unknown warning flag or
+# certain optimization flags it knows it has not implemented.
+# Make it behave more like gcc by erroring when these flags are encountered
+# so they can be implemented or wrapped in cc-option.
+CLANG_FLAGS	+= -Werror=unknown-warning-option
+CLANG_FLAGS	+= -Werror=ignored-optimization-argument
+KBUILD_CFLAGS	+= $(CLANG_FLAGS)
+KBUILD_AFLAGS	+= $(CLANG_FLAGS)
+export CLANG_FLAGS
diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins
index 952e46876329..4aad28480035 100644
--- a/scripts/Makefile.gcc-plugins
+++ b/scripts/Makefile.gcc-plugins
@@ -19,6 +19,10 @@ gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF)		\
 		+= -fplugin-arg-structleak_plugin-byref
 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL)	\
 		+= -fplugin-arg-structleak_plugin-byref-all
+ifdef CONFIG_GCC_PLUGIN_STRUCTLEAK
+    DISABLE_STRUCTLEAK_PLUGIN += -fplugin-arg-structleak_plugin-disable
+endif
+export DISABLE_STRUCTLEAK_PLUGIN
 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK)		\
 		+= -DSTRUCTLEAK_PLUGIN
 
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 3d791908ed36..b9e94c5e7097 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -33,10 +33,11 @@ else
 	CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
 	 $(call cc-param,asan-globals=1) \
 	 $(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
-	 $(call cc-param,asan-stack=$(stack_enable)) \
 	 $(call cc-param,asan-instrument-allocas=1)
 endif
 
+CFLAGS_KASAN += $(call cc-param,asan-stack=$(stack_enable))
+
 endif # CONFIG_KASAN_GENERIC
 
 ifdef CONFIG_KASAN_SW_TAGS
@@ -50,6 +51,7 @@ endif
 CFLAGS_KASAN := -fsanitize=kernel-hwaddress \
 		$(call cc-param,hwasan-instrument-stack=$(stack_enable)) \
 		$(call cc-param,hwasan-use-short-granules=0) \
+		$(call cc-param,hwasan-inline-all-checks=0) \
 		$(instrumentation_flags)
 
 endif # CONFIG_KASAN_SW_TAGS
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 10950559b223..54582673fc1a 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -225,17 +225,23 @@ dtc_cpp_flags  = -Wp,-MMD,$(depfile).pre.tmp -nostdinc                    \
 		 $(addprefix -I,$(DTC_INCLUDE))                          \
 		 -undef -D__DTS__
 
+ifeq ($(CONFIG_LTO_CLANG),y)
+# With CONFIG_LTO_CLANG, .o files in modules might be LLVM bitcode, so we
+# need to run LTO to compile them into native code (.lto.o) before further
+# processing.
+mod-prelink-ext := .lto
+endif
+
 # Objtool arguments are also needed for modfinal with LTO, so we define
 # then here to avoid duplication.
 objtool_args =								\
 	$(if $(CONFIG_UNWINDER_ORC),orc generate,check)			\
-	$(if $(part-of-module), --module,)				\
+	$(if $(part-of-module), --module)				\
 	$(if $(CONFIG_FRAME_POINTER),, --no-fp)				\
-	$(if $(or $(CONFIG_GCOV_KERNEL),$(CONFIG_LTO_CLANG)), 		\
-		--no-unreachable,)					\
-	$(if $(CONFIG_RETPOLINE), --retpoline,)				\
-	$(if $(CONFIG_X86_SMAP), --uaccess,)				\
-	$(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount,)
+	$(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), --no-unreachable)\
+	$(if $(CONFIG_RETPOLINE), --retpoline)				\
+	$(if $(CONFIG_X86_SMAP), --uaccess)				\
+	$(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount)
 
 # Useful for describing the dependency of composite objects
 # Usage:
@@ -309,8 +315,7 @@ DTC_FLAGS += -Wno-unit_address_vs_reg \
 	-Wno-alias_paths \
 	-Wno-graph_child_address \
 	-Wno-simple_bus_reg \
-	-Wno-unique_unit_address \
-	-Wno-pci_device_reg
+	-Wno-unique_unit_address
 endif
 
 ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),)
diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
index a7883e455290..ff805777431c 100644
--- a/scripts/Makefile.modfinal
+++ b/scripts/Makefile.modfinal
@@ -9,7 +9,7 @@ __modfinal:
 include include/config/auto.conf
 include $(srctree)/scripts/Kbuild.include
 
-# for c_flags and objtool_args
+# for c_flags and mod-prelink-ext
 include $(srctree)/scripts/Makefile.lib
 
 # find all modules listed in modules.order
@@ -30,25 +30,6 @@ quiet_cmd_cc_o_c = CC [M]  $@
 
 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
 
-ifdef CONFIG_LTO_CLANG
-# With CONFIG_LTO_CLANG, reuse the object file we compiled for modpost to
-# avoid a second slow LTO link
-prelink-ext := .lto
-
-# ELF processing was skipped earlier because we didn't have native code,
-# so let's now process the prelinked binary before we link the module.
-
-ifdef CONFIG_STACK_VALIDATION
-ifneq ($(SKIP_STACK_VALIDATION),1)
-cmd_ld_ko_o +=								\
-	$(objtree)/tools/objtool/objtool $(objtool_args)		\
-		$(@:.ko=$(prelink-ext).o);
-
-endif # SKIP_STACK_VALIDATION
-endif # CONFIG_STACK_VALIDATION
-
-endif # CONFIG_LTO_CLANG
-
 quiet_cmd_ld_ko_o = LD [M]  $@
       cmd_ld_ko_o +=							\
 	$(LD) -r $(KBUILD_LDFLAGS)					\
@@ -74,7 +55,7 @@ if_changed_except = $(if $(call newer_prereqs_except,$(2))$(cmd-check),      \
 
 
 # Re-generate module BTFs if either module's .ko or vmlinux changed
-$(modules): %.ko: %$(prelink-ext).o %.mod.o scripts/module.lds $(if $(KBUILD_BUILTIN),vmlinux) FORCE
+$(modules): %.ko: %$(mod-prelink-ext).o %.mod.o scripts/module.lds $(if $(KBUILD_BUILTIN),vmlinux) FORCE
 	+$(call if_changed_except,ld_ko_o,vmlinux)
 ifdef CONFIG_DEBUG_INFO_BTF_MODULES
 	+$(if $(newer-prereqs),$(call cmd,btf_ko))
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index c383ba33d837..48585c4d04ad 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -13,7 +13,7 @@
 # Stage 2 is handled by this file and does the following
 # 1) Find all modules listed in modules.order
 # 2) modpost is then used to
-# 3)  create one <module>.mod.c file pr. module
+# 3)  create one <module>.mod.c file per module
 # 4)  create one Module.symvers file with CRC for all exported symbols
 
 # Step 3 is used to place certain information in the module's ELF
@@ -41,7 +41,7 @@ __modpost:
 include include/config/auto.conf
 include $(srctree)/scripts/Kbuild.include
 
-# for ld_flags
+# for mod-prelink-ext
 include $(srctree)/scripts/Makefile.lib
 
 MODPOST = scripts/mod/modpost								\
@@ -118,22 +118,6 @@ $(input-symdump):
 	@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
-# LTO to compile them into native code before running modpost
-prelink-ext := .lto
-
-quiet_cmd_cc_lto_link_modules = LTO [M] $@
-cmd_cc_lto_link_modules =						\
-	$(LD) $(ld_flags) -r -o $@					\
-		$(shell [ -s $(@:.lto.o=.o.symversions) ] &&		\
-			echo -T $(@:.lto.o=.o.symversions))		\
-		--whole-archive $^
-
-%.lto.o: %.o
-	$(call if_changed,cc_lto_link_modules)
-endif
-
 modules := $(sort $(shell cat $(MODORDER)))
 
 # KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined symbols
@@ -144,9 +128,9 @@ endif
 # Read out modules.order to pass in modpost.
 # Otherwise, allmodconfig would fail with "Argument list too long".
 quiet_cmd_modpost = MODPOST $@
-      cmd_modpost = sed 's/\.ko$$/$(prelink-ext)\.o/' $< | $(MODPOST) -T -
+      cmd_modpost = sed 's/\.ko$$/$(mod-prelink-ext)\.o/' $< | $(MODPOST) -T -
 
-$(output-symdump): $(MODORDER) $(input-symdump) $(modules:.ko=$(prelink-ext).o) FORCE
+$(output-symdump): $(MODORDER) $(input-symdump) $(modules:.ko=$(mod-prelink-ext).o) FORCE
 	$(call if_changed,modpost)
 
 targets += $(output-symdump)
diff --git a/scripts/adjust_autoksyms.sh b/scripts/adjust_autoksyms.sh
index d8f6f9c63043..59fdb875e818 100755
--- a/scripts/adjust_autoksyms.sh
+++ b/scripts/adjust_autoksyms.sh
@@ -42,10 +42,10 @@ $CONFIG_SHELL $srctree/scripts/gen_autoksyms.sh "$new_ksyms_file"
 changed=$(
 count=0
 sort "$cur_ksyms_file" "$new_ksyms_file" | uniq -u |
-sed -n 's/^#define __KSYM_\(.*\) 1/\1/p' | tr "A-Z_" "a-z/" |
+sed -n 's/^#define __KSYM_\(.*\) 1/\1/p' |
 while read sympath; do
 	if [ -z "$sympath" ]; then continue; fi
-	depfile="include/ksym/${sympath}.h"
+	depfile="include/ksym/${sympath}"
 	mkdir -p "$(dirname "$depfile")"
 	touch "$depfile"
 	# Filesystems with coarse time precision may create timestamps
diff --git a/scripts/as-version.sh b/scripts/as-version.sh
index 8b9410e329df..1a21495e9ff0 100755
--- a/scripts/as-version.sh
+++ b/scripts/as-version.sh
@@ -21,14 +21,14 @@ get_canonical_version()
 	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
+# Clang fails to handle -Wa,--version unless -fno-integrated-as is given.
+# We check -fintegrated-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
+		if [ "$1" = -fintegrated-as ]; then
+			# For the integrated 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
diff --git a/scripts/atomic/check-atomics.sh b/scripts/atomic/check-atomics.sh
index 82748d42ecc5..0e7bab3eb0d1 100755
--- a/scripts/atomic/check-atomics.sh
+++ b/scripts/atomic/check-atomics.sh
@@ -14,10 +14,9 @@ if [ $? -ne 0 ]; then
 fi
 
 cat <<EOF |
-asm-generic/atomic-instrumented.h
-asm-generic/atomic-long.h
-linux/atomic-arch-fallback.h
-linux/atomic-fallback.h
+linux/atomic/atomic-instrumented.h
+linux/atomic/atomic-long.h
+linux/atomic/atomic-arch-fallback.h
 EOF
 while read header; do
 	OLDSUM="$(tail -n 1 ${LINUXDIR}/include/${header})"
diff --git a/scripts/atomic/fallbacks/acquire b/scripts/atomic/fallbacks/acquire
index 59c00529dc7c..ef764085c79a 100755
--- a/scripts/atomic/fallbacks/acquire
+++ b/scripts/atomic/fallbacks/acquire
@@ -1,8 +1,8 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_${pfx}${name}${sfx}_acquire(${params})
+arch_${atomic}_${pfx}${name}${sfx}_acquire(${params})
 {
-	${ret} ret = ${arch}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+	${ret} ret = arch_${atomic}_${pfx}${name}${sfx}_relaxed(${args});
 	__atomic_acquire_fence();
 	return ret;
 }
diff --git a/scripts/atomic/fallbacks/add_negative b/scripts/atomic/fallbacks/add_negative
index a66635bceefb..15caa2eb2371 100755
--- a/scripts/atomic/fallbacks/add_negative
+++ b/scripts/atomic/fallbacks/add_negative
@@ -1,6 +1,6 @@
 cat <<EOF
 /**
- * ${arch}${atomic}_add_negative - add and test if negative
+ * arch_${atomic}_add_negative - add and test if negative
  * @i: integer value to add
  * @v: pointer of type ${atomic}_t
  *
@@ -9,8 +9,8 @@ cat <<EOF
  * result is greater than or equal to zero.
  */
 static __always_inline bool
-${arch}${atomic}_add_negative(${int} i, ${atomic}_t *v)
+arch_${atomic}_add_negative(${int} i, ${atomic}_t *v)
 {
-	return ${arch}${atomic}_add_return(i, v) < 0;
+	return arch_${atomic}_add_return(i, v) < 0;
 }
 EOF
diff --git a/scripts/atomic/fallbacks/add_unless b/scripts/atomic/fallbacks/add_unless
index 2ff598a3f9ec..9e5159c2ccfc 100755
--- a/scripts/atomic/fallbacks/add_unless
+++ b/scripts/atomic/fallbacks/add_unless
@@ -1,6 +1,6 @@
 cat << EOF
 /**
- * ${arch}${atomic}_add_unless - add unless the number is already a given value
+ * arch_${atomic}_add_unless - add unless the number is already a given value
  * @v: pointer of type ${atomic}_t
  * @a: the amount to add to v...
  * @u: ...unless v is equal to u.
@@ -9,8 +9,8 @@ cat << EOF
  * Returns true if the addition was done.
  */
 static __always_inline bool
-${arch}${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
+arch_${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
 {
-	return ${arch}${atomic}_fetch_add_unless(v, a, u) != u;
+	return arch_${atomic}_fetch_add_unless(v, a, u) != u;
 }
 EOF
diff --git a/scripts/atomic/fallbacks/andnot b/scripts/atomic/fallbacks/andnot
index 3f18663dcefb..5a42f54a3595 100755
--- a/scripts/atomic/fallbacks/andnot
+++ b/scripts/atomic/fallbacks/andnot
@@ -1,7 +1,7 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_${pfx}andnot${sfx}${order}(${int} i, ${atomic}_t *v)
+arch_${atomic}_${pfx}andnot${sfx}${order}(${int} i, ${atomic}_t *v)
 {
-	${retstmt}${arch}${atomic}_${pfx}and${sfx}${order}(~i, v);
+	${retstmt}arch_${atomic}_${pfx}and${sfx}${order}(~i, v);
 }
 EOF
diff --git a/scripts/atomic/fallbacks/dec b/scripts/atomic/fallbacks/dec
index e2e01f0574bb..8c144c818e9e 100755
--- a/scripts/atomic/fallbacks/dec
+++ b/scripts/atomic/fallbacks/dec
@@ -1,7 +1,7 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_${pfx}dec${sfx}${order}(${atomic}_t *v)
+arch_${atomic}_${pfx}dec${sfx}${order}(${atomic}_t *v)
 {
-	${retstmt}${arch}${atomic}_${pfx}sub${sfx}${order}(1, v);
+	${retstmt}arch_${atomic}_${pfx}sub${sfx}${order}(1, v);
 }
 EOF
diff --git a/scripts/atomic/fallbacks/dec_and_test b/scripts/atomic/fallbacks/dec_and_test
index e8a5e492eb5f..8549f359bd0e 100755
--- a/scripts/atomic/fallbacks/dec_and_test
+++ b/scripts/atomic/fallbacks/dec_and_test
@@ -1,6 +1,6 @@
 cat <<EOF
 /**
- * ${arch}${atomic}_dec_and_test - decrement and test
+ * arch_${atomic}_dec_and_test - decrement and test
  * @v: pointer of type ${atomic}_t
  *
  * Atomically decrements @v by 1 and
@@ -8,8 +8,8 @@ cat <<EOF
  * cases.
  */
 static __always_inline bool
-${arch}${atomic}_dec_and_test(${atomic}_t *v)
+arch_${atomic}_dec_and_test(${atomic}_t *v)
 {
-	return ${arch}${atomic}_dec_return(v) == 0;
+	return arch_${atomic}_dec_return(v) == 0;
 }
 EOF
diff --git a/scripts/atomic/fallbacks/dec_if_positive b/scripts/atomic/fallbacks/dec_if_positive
index 527adec89c37..86bdced3428d 100755
--- a/scripts/atomic/fallbacks/dec_if_positive
+++ b/scripts/atomic/fallbacks/dec_if_positive
@@ -1,14 +1,14 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_dec_if_positive(${atomic}_t *v)
+arch_${atomic}_dec_if_positive(${atomic}_t *v)
 {
-	${int} dec, c = ${arch}${atomic}_read(v);
+	${int} dec, c = arch_${atomic}_read(v);
 
 	do {
 		dec = c - 1;
 		if (unlikely(dec < 0))
 			break;
-	} while (!${arch}${atomic}_try_cmpxchg(v, &c, dec));
+	} while (!arch_${atomic}_try_cmpxchg(v, &c, dec));
 
 	return dec;
 }
diff --git a/scripts/atomic/fallbacks/dec_unless_positive b/scripts/atomic/fallbacks/dec_unless_positive
index dcab6848ca1e..c531d5afecc4 100755
--- a/scripts/atomic/fallbacks/dec_unless_positive
+++ b/scripts/atomic/fallbacks/dec_unless_positive
@@ -1,13 +1,13 @@
 cat <<EOF
 static __always_inline bool
-${arch}${atomic}_dec_unless_positive(${atomic}_t *v)
+arch_${atomic}_dec_unless_positive(${atomic}_t *v)
 {
-	${int} c = ${arch}${atomic}_read(v);
+	${int} c = arch_${atomic}_read(v);
 
 	do {
 		if (unlikely(c > 0))
 			return false;
-	} while (!${arch}${atomic}_try_cmpxchg(v, &c, c - 1));
+	} while (!arch_${atomic}_try_cmpxchg(v, &c, c - 1));
 
 	return true;
 }
diff --git a/scripts/atomic/fallbacks/fence b/scripts/atomic/fallbacks/fence
index 3764fc8ce945..07757d8e338e 100755
--- a/scripts/atomic/fallbacks/fence
+++ b/scripts/atomic/fallbacks/fence
@@ -1,10 +1,10 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_${pfx}${name}${sfx}(${params})
+arch_${atomic}_${pfx}${name}${sfx}(${params})
 {
 	${ret} ret;
 	__atomic_pre_full_fence();
-	ret = ${arch}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+	ret = arch_${atomic}_${pfx}${name}${sfx}_relaxed(${args});
 	__atomic_post_full_fence();
 	return ret;
 }
diff --git a/scripts/atomic/fallbacks/fetch_add_unless b/scripts/atomic/fallbacks/fetch_add_unless
index 0e0b9aef1515..68ce13c8b9da 100755
--- a/scripts/atomic/fallbacks/fetch_add_unless
+++ b/scripts/atomic/fallbacks/fetch_add_unless
@@ -1,6 +1,6 @@
 cat << EOF
 /**
- * ${arch}${atomic}_fetch_add_unless - add unless the number is already a given value
+ * arch_${atomic}_fetch_add_unless - add unless the number is already a given value
  * @v: pointer of type ${atomic}_t
  * @a: the amount to add to v...
  * @u: ...unless v is equal to u.
@@ -9,14 +9,14 @@ cat << EOF
  * Returns original value of @v
  */
 static __always_inline ${int}
-${arch}${atomic}_fetch_add_unless(${atomic}_t *v, ${int} a, ${int} u)
+arch_${atomic}_fetch_add_unless(${atomic}_t *v, ${int} a, ${int} u)
 {
-	${int} c = ${arch}${atomic}_read(v);
+	${int} c = arch_${atomic}_read(v);
 
 	do {
 		if (unlikely(c == u))
 			break;
-	} while (!${arch}${atomic}_try_cmpxchg(v, &c, c + a));
+	} while (!arch_${atomic}_try_cmpxchg(v, &c, c + a));
 
 	return c;
 }
diff --git a/scripts/atomic/fallbacks/inc b/scripts/atomic/fallbacks/inc
index 15ec62946e8c..3c2c3739169e 100755
--- a/scripts/atomic/fallbacks/inc
+++ b/scripts/atomic/fallbacks/inc
@@ -1,7 +1,7 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_${pfx}inc${sfx}${order}(${atomic}_t *v)
+arch_${atomic}_${pfx}inc${sfx}${order}(${atomic}_t *v)
 {
-	${retstmt}${arch}${atomic}_${pfx}add${sfx}${order}(1, v);
+	${retstmt}arch_${atomic}_${pfx}add${sfx}${order}(1, v);
 }
 EOF
diff --git a/scripts/atomic/fallbacks/inc_and_test b/scripts/atomic/fallbacks/inc_and_test
index cecc8322a21f..0cf23fe1efb8 100755
--- a/scripts/atomic/fallbacks/inc_and_test
+++ b/scripts/atomic/fallbacks/inc_and_test
@@ -1,6 +1,6 @@
 cat <<EOF
 /**
- * ${arch}${atomic}_inc_and_test - increment and test
+ * arch_${atomic}_inc_and_test - increment and test
  * @v: pointer of type ${atomic}_t
  *
  * Atomically increments @v by 1
@@ -8,8 +8,8 @@ cat <<EOF
  * other cases.
  */
 static __always_inline bool
-${arch}${atomic}_inc_and_test(${atomic}_t *v)
+arch_${atomic}_inc_and_test(${atomic}_t *v)
 {
-	return ${arch}${atomic}_inc_return(v) == 0;
+	return arch_${atomic}_inc_return(v) == 0;
 }
 EOF
diff --git a/scripts/atomic/fallbacks/inc_not_zero b/scripts/atomic/fallbacks/inc_not_zero
index 50f2d4d48279..ed8a1f562667 100755
--- a/scripts/atomic/fallbacks/inc_not_zero
+++ b/scripts/atomic/fallbacks/inc_not_zero
@@ -1,14 +1,14 @@
 cat <<EOF
 /**
- * ${arch}${atomic}_inc_not_zero - increment unless the number is zero
+ * arch_${atomic}_inc_not_zero - increment unless the number is zero
  * @v: pointer of type ${atomic}_t
  *
  * Atomically increments @v by 1, if @v is non-zero.
  * Returns true if the increment was done.
  */
 static __always_inline bool
-${arch}${atomic}_inc_not_zero(${atomic}_t *v)
+arch_${atomic}_inc_not_zero(${atomic}_t *v)
 {
-	return ${arch}${atomic}_add_unless(v, 1, 0);
+	return arch_${atomic}_add_unless(v, 1, 0);
 }
 EOF
diff --git a/scripts/atomic/fallbacks/inc_unless_negative b/scripts/atomic/fallbacks/inc_unless_negative
index 87629e0d4a80..95d8ce48233f 100755
--- a/scripts/atomic/fallbacks/inc_unless_negative
+++ b/scripts/atomic/fallbacks/inc_unless_negative
@@ -1,13 +1,13 @@
 cat <<EOF
 static __always_inline bool
-${arch}${atomic}_inc_unless_negative(${atomic}_t *v)
+arch_${atomic}_inc_unless_negative(${atomic}_t *v)
 {
-	${int} c = ${arch}${atomic}_read(v);
+	${int} c = arch_${atomic}_read(v);
 
 	do {
 		if (unlikely(c < 0))
 			return false;
-	} while (!${arch}${atomic}_try_cmpxchg(v, &c, c + 1));
+	} while (!arch_${atomic}_try_cmpxchg(v, &c, c + 1));
 
 	return true;
 }
diff --git a/scripts/atomic/fallbacks/read_acquire b/scripts/atomic/fallbacks/read_acquire
index 341a88dccaa7..803ba7561076 100755
--- a/scripts/atomic/fallbacks/read_acquire
+++ b/scripts/atomic/fallbacks/read_acquire
@@ -1,6 +1,6 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_read_acquire(const ${atomic}_t *v)
+arch_${atomic}_read_acquire(const ${atomic}_t *v)
 {
 	return smp_load_acquire(&(v)->counter);
 }
diff --git a/scripts/atomic/fallbacks/release b/scripts/atomic/fallbacks/release
index f8906d537c0f..b46feb56d69c 100755
--- a/scripts/atomic/fallbacks/release
+++ b/scripts/atomic/fallbacks/release
@@ -1,8 +1,8 @@
 cat <<EOF
 static __always_inline ${ret}
-${arch}${atomic}_${pfx}${name}${sfx}_release(${params})
+arch_${atomic}_${pfx}${name}${sfx}_release(${params})
 {
 	__atomic_release_fence();
-	${retstmt}${arch}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+	${retstmt}arch_${atomic}_${pfx}${name}${sfx}_relaxed(${args});
 }
 EOF
diff --git a/scripts/atomic/fallbacks/set_release b/scripts/atomic/fallbacks/set_release
index 76068272d5f5..86ede759f24e 100755
--- a/scripts/atomic/fallbacks/set_release
+++ b/scripts/atomic/fallbacks/set_release
@@ -1,6 +1,6 @@
 cat <<EOF
 static __always_inline void
-${arch}${atomic}_set_release(${atomic}_t *v, ${int} i)
+arch_${atomic}_set_release(${atomic}_t *v, ${int} i)
 {
 	smp_store_release(&(v)->counter, i);
 }
diff --git a/scripts/atomic/fallbacks/sub_and_test b/scripts/atomic/fallbacks/sub_and_test
index c580f4c2136e..260f37341c88 100755
--- a/scripts/atomic/fallbacks/sub_and_test
+++ b/scripts/atomic/fallbacks/sub_and_test
@@ -1,6 +1,6 @@
 cat <<EOF
 /**
- * ${arch}${atomic}_sub_and_test - subtract value from variable and test result
+ * arch_${atomic}_sub_and_test - subtract value from variable and test result
  * @i: integer value to subtract
  * @v: pointer of type ${atomic}_t
  *
@@ -9,8 +9,8 @@ cat <<EOF
  * other cases.
  */
 static __always_inline bool
-${arch}${atomic}_sub_and_test(${int} i, ${atomic}_t *v)
+arch_${atomic}_sub_and_test(${int} i, ${atomic}_t *v)
 {
-	return ${arch}${atomic}_sub_return(i, v) == 0;
+	return arch_${atomic}_sub_return(i, v) == 0;
 }
 EOF
diff --git a/scripts/atomic/fallbacks/try_cmpxchg b/scripts/atomic/fallbacks/try_cmpxchg
index 06db0f738e45..890f850ede37 100755
--- a/scripts/atomic/fallbacks/try_cmpxchg
+++ b/scripts/atomic/fallbacks/try_cmpxchg
@@ -1,9 +1,9 @@
 cat <<EOF
 static __always_inline bool
-${arch}${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
+arch_${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
 {
 	${int} r, o = *old;
-	r = ${arch}${atomic}_cmpxchg${order}(v, o, new);
+	r = arch_${atomic}_cmpxchg${order}(v, o, new);
 	if (unlikely(r != o))
 		*old = r;
 	return likely(r == o);
diff --git a/scripts/atomic/gen-atomic-fallback.sh b/scripts/atomic/gen-atomic-fallback.sh
index 317a6cec76e1..8e2da71f1d5f 100755
--- a/scripts/atomic/gen-atomic-fallback.sh
+++ b/scripts/atomic/gen-atomic-fallback.sh
@@ -2,11 +2,10 @@
 # SPDX-License-Identifier: GPL-2.0
 
 ATOMICDIR=$(dirname $0)
-ARCH=$2
 
 . ${ATOMICDIR}/atomic-tbl.sh
 
-#gen_template_fallback(template, meta, pfx, name, sfx, order, arch, atomic, int, args...)
+#gen_template_fallback(template, meta, pfx, name, sfx, order, atomic, int, args...)
 gen_template_fallback()
 {
 	local template="$1"; shift
@@ -15,11 +14,10 @@ gen_template_fallback()
 	local name="$1"; shift
 	local sfx="$1"; shift
 	local order="$1"; shift
-	local arch="$1"; shift
 	local atomic="$1"; shift
 	local int="$1"; shift
 
-	local atomicname="${arch}${atomic}_${pfx}${name}${sfx}${order}"
+	local atomicname="arch_${atomic}_${pfx}${name}${sfx}${order}"
 
 	local ret="$(gen_ret_type "${meta}" "${int}")"
 	local retstmt="$(gen_ret_stmt "${meta}")"
@@ -34,7 +32,7 @@ gen_template_fallback()
 	fi
 }
 
-#gen_proto_fallback(meta, pfx, name, sfx, order, arch, atomic, int, args...)
+#gen_proto_fallback(meta, pfx, name, sfx, order, atomic, int, args...)
 gen_proto_fallback()
 {
 	local meta="$1"; shift
@@ -65,44 +63,26 @@ gen_proto_order_variant()
 	local name="$1"; shift
 	local sfx="$1"; shift
 	local order="$1"; shift
-	local arch="$1"
-	local atomic="$2"
+	local atomic="$1"
 
-	local basename="${arch}${atomic}_${pfx}${name}${sfx}"
+	local basename="arch_${atomic}_${pfx}${name}${sfx}"
 
-	printf "#define arch_${basename}${order} ${basename}${order}\n"
+	printf "#define ${basename}${order} ${basename}${order}\n"
 }
 
-#gen_proto_order_variants(meta, pfx, name, sfx, arch, atomic, int, args...)
+#gen_proto_order_variants(meta, pfx, name, sfx, atomic, int, args...)
 gen_proto_order_variants()
 {
 	local meta="$1"; shift
 	local pfx="$1"; shift
 	local name="$1"; shift
 	local sfx="$1"; shift
-	local arch="$1"
-	local atomic="$2"
+	local atomic="$1"
 
-	local basename="${arch}${atomic}_${pfx}${name}${sfx}"
+	local basename="arch_${atomic}_${pfx}${name}${sfx}"
 
 	local template="$(find_fallback_template "${pfx}" "${name}" "${sfx}" "${order}")"
 
-	if [ -z "$arch" ]; then
-		gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "" "$@"
-
-		if meta_has_acquire "${meta}"; then
-			gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "_acquire" "$@"
-		fi
-		if meta_has_release "${meta}"; then
-			gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "_release" "$@"
-		fi
-		if meta_has_relaxed "${meta}"; then
-			gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "_relaxed" "$@"
-		fi
-
-		echo ""
-	fi
-
 	# If we don't have relaxed atomics, then we don't bother with ordering fallbacks
 	# read_acquire and set_release need to be templated, though
 	if ! meta_has_relaxed "${meta}"; then
@@ -128,7 +108,7 @@ gen_proto_order_variants()
 	gen_basic_fallbacks "${basename}"
 
 	if [ ! -z "${template}" ]; then
-		printf "#endif /* ${arch}${atomic}_${pfx}${name}${sfx} */\n\n"
+		printf "#endif /* ${basename} */\n\n"
 		gen_proto_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "" "$@"
 		gen_proto_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "_acquire" "$@"
 		gen_proto_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "_release" "$@"
@@ -187,38 +167,38 @@ gen_try_cmpxchg_fallback()
 	local order="$1"; shift;
 
 cat <<EOF
-#ifndef ${ARCH}try_cmpxchg${order}
-#define ${ARCH}try_cmpxchg${order}(_ptr, _oldp, _new) \\
+#ifndef arch_try_cmpxchg${order}
+#define arch_try_cmpxchg${order}(_ptr, _oldp, _new) \\
 ({ \\
 	typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \\
-	___r = ${ARCH}cmpxchg${order}((_ptr), ___o, (_new)); \\
+	___r = arch_cmpxchg${order}((_ptr), ___o, (_new)); \\
 	if (unlikely(___r != ___o)) \\
 		*___op = ___r; \\
 	likely(___r == ___o); \\
 })
-#endif /* ${ARCH}try_cmpxchg${order} */
+#endif /* arch_try_cmpxchg${order} */
 
 EOF
 }
 
 gen_try_cmpxchg_fallbacks()
 {
-	printf "#ifndef ${ARCH}try_cmpxchg_relaxed\n"
-	printf "#ifdef ${ARCH}try_cmpxchg\n"
+	printf "#ifndef arch_try_cmpxchg_relaxed\n"
+	printf "#ifdef arch_try_cmpxchg\n"
 
-	gen_basic_fallbacks "${ARCH}try_cmpxchg"
+	gen_basic_fallbacks "arch_try_cmpxchg"
 
-	printf "#endif /* ${ARCH}try_cmpxchg */\n\n"
+	printf "#endif /* arch_try_cmpxchg */\n\n"
 
 	for order in "" "_acquire" "_release" "_relaxed"; do
 		gen_try_cmpxchg_fallback "${order}"
 	done
 
-	printf "#else /* ${ARCH}try_cmpxchg_relaxed */\n"
+	printf "#else /* arch_try_cmpxchg_relaxed */\n"
 
-	gen_order_fallbacks "${ARCH}try_cmpxchg"
+	gen_order_fallbacks "arch_try_cmpxchg"
 
-	printf "#endif /* ${ARCH}try_cmpxchg_relaxed */\n\n"
+	printf "#endif /* arch_try_cmpxchg_relaxed */\n\n"
 }
 
 cat << EOF
@@ -234,14 +214,14 @@ cat << EOF
 
 EOF
 
-for xchg in "${ARCH}xchg" "${ARCH}cmpxchg" "${ARCH}cmpxchg64"; do
+for xchg in "arch_xchg" "arch_cmpxchg" "arch_cmpxchg64"; do
 	gen_xchg_fallbacks "${xchg}"
 done
 
 gen_try_cmpxchg_fallbacks
 
 grep '^[a-z]' "$1" | while read name meta args; do
-	gen_proto "${meta}" "${name}" "${ARCH}" "atomic" "int" ${args}
+	gen_proto "${meta}" "${name}" "atomic" "int" ${args}
 done
 
 cat <<EOF
@@ -252,7 +232,7 @@ cat <<EOF
 EOF
 
 grep '^[a-z]' "$1" | while read name meta args; do
-	gen_proto "${meta}" "${name}" "${ARCH}" "atomic64" "s64" ${args}
+	gen_proto "${meta}" "${name}" "atomic64" "s64" ${args}
 done
 
 cat <<EOF
diff --git a/scripts/atomic/gen-atomic-instrumented.sh b/scripts/atomic/gen-atomic-instrumented.sh
index 5766ffcec7c5..035ceb4ee85c 100755
--- a/scripts/atomic/gen-atomic-instrumented.sh
+++ b/scripts/atomic/gen-atomic-instrumented.sh
@@ -41,34 +41,6 @@ gen_params_checks()
 	done
 }
 
-# gen_guard(meta, atomic, pfx, name, sfx, order)
-gen_guard()
-{
-	local meta="$1"; shift
-	local atomic="$1"; shift
-	local pfx="$1"; shift
-	local name="$1"; shift
-	local sfx="$1"; shift
-	local order="$1"; shift
-
-	local atomicname="arch_${atomic}_${pfx}${name}${sfx}${order}"
-
-	local template="$(find_fallback_template "${pfx}" "${name}" "${sfx}" "${order}")"
-
-	# We definitely need a preprocessor symbol for this atomic if it is an
-	# ordering variant, or if there's a generic fallback.
-	if [ ! -z "${order}" ] || [ ! -z "${template}" ]; then
-		printf "defined(${atomicname})"
-		return
-	fi
-
-	# If this is a base variant, but a relaxed variant *may* exist, then we
-	# only have a preprocessor symbol if the relaxed variant isn't defined
-	if meta_has_relaxed "${meta}"; then
-		printf "!defined(${atomicname}_relaxed) || defined(${atomicname})"
-	fi
-}
-
 #gen_proto_order_variant(meta, pfx, name, sfx, order, atomic, int, arg...)
 gen_proto_order_variant()
 {
@@ -82,16 +54,12 @@ gen_proto_order_variant()
 
 	local atomicname="${atomic}_${pfx}${name}${sfx}${order}"
 
-	local guard="$(gen_guard "${meta}" "${atomic}" "${pfx}" "${name}" "${sfx}" "${order}")"
-
 	local ret="$(gen_ret_type "${meta}" "${int}")"
 	local params="$(gen_params "${int}" "${atomic}" "$@")"
 	local checks="$(gen_params_checks "${meta}" "$@")"
 	local args="$(gen_args "$@")"
 	local retstmt="$(gen_ret_stmt "${meta}")"
 
-	[ ! -z "${guard}" ] && printf "#if ${guard}\n"
-
 cat <<EOF
 static __always_inline ${ret}
 ${atomicname}(${params})
@@ -99,11 +67,8 @@ ${atomicname}(${params})
 ${checks}
 	${retstmt}arch_${atomicname}(${args});
 }
-#define ${atomicname} ${atomicname}
 EOF
 
-	[ ! -z "${guard}" ] && printf "#endif\n"
-
 	printf "\n"
 }
 
@@ -139,19 +104,6 @@ EOF
 	fi
 }
 
-gen_optional_xchg()
-{
-	local name="$1"; shift
-	local sfx="$1"; shift
-	local guard="defined(arch_${name}${sfx})"
-
-	[ -z "${sfx}" ] && guard="!defined(arch_${name}_relaxed) || defined(arch_${name})"
-
-	printf "#if ${guard}\n"
-	gen_xchg "${name}${sfx}" ""
-	printf "#endif\n\n"
-}
-
 cat << EOF
 // SPDX-License-Identifier: GPL-2.0
 
@@ -169,8 +121,8 @@ cat << EOF
  * arch_ variants (i.e. arch_atomic_read()/arch_atomic_cmpxchg()) to avoid
  * double instrumentation.
  */
-#ifndef _ASM_GENERIC_ATOMIC_INSTRUMENTED_H
-#define _ASM_GENERIC_ATOMIC_INSTRUMENTED_H
+#ifndef _LINUX_ATOMIC_INSTRUMENTED_H
+#define _LINUX_ATOMIC_INSTRUMENTED_H
 
 #include <linux/build_bug.h>
 #include <linux/compiler.h>
@@ -186,9 +138,15 @@ grep '^[a-z]' "$1" | while read name meta args; do
 	gen_proto "${meta}" "${name}" "atomic64" "s64" ${args}
 done
 
+grep '^[a-z]' "$1" | while read name meta args; do
+	gen_proto "${meta}" "${name}" "atomic_long" "long" ${args}
+done
+
+
 for xchg in "xchg" "cmpxchg" "cmpxchg64" "try_cmpxchg"; do
 	for order in "" "_acquire" "_release" "_relaxed"; do
-		gen_optional_xchg "${xchg}" "${order}"
+		gen_xchg "${xchg}${order}" ""
+		printf "\n"
 	done
 done
 
@@ -205,5 +163,5 @@ gen_xchg "cmpxchg_double_local" "2 * "
 
 cat <<EOF
 
-#endif /* _ASM_GENERIC_ATOMIC_INSTRUMENTED_H */
+#endif /* _LINUX_ATOMIC_INSTRUMENTED_H */
 EOF
diff --git a/scripts/atomic/gen-atomic-long.sh b/scripts/atomic/gen-atomic-long.sh
index e318d3f92e53..eda89cea6e1d 100755
--- a/scripts/atomic/gen-atomic-long.sh
+++ b/scripts/atomic/gen-atomic-long.sh
@@ -47,9 +47,9 @@ gen_proto_order_variant()
 
 cat <<EOF
 static __always_inline ${ret}
-atomic_long_${name}(${params})
+arch_atomic_long_${name}(${params})
 {
-	${retstmt}${atomic}_${name}(${argscast});
+	${retstmt}arch_${atomic}_${name}(${argscast});
 }
 
 EOF
@@ -61,8 +61,8 @@ cat << EOF
 // Generated by $0
 // DO NOT MODIFY THIS FILE DIRECTLY
 
-#ifndef _ASM_GENERIC_ATOMIC_LONG_H
-#define _ASM_GENERIC_ATOMIC_LONG_H
+#ifndef _LINUX_ATOMIC_LONG_H
+#define _LINUX_ATOMIC_LONG_H
 
 #include <linux/compiler.h>
 #include <asm/types.h>
@@ -98,5 +98,5 @@ done
 
 cat <<EOF
 #endif /* CONFIG_64BIT */
-#endif /* _ASM_GENERIC_ATOMIC_LONG_H */
+#endif /* _LINUX_ATOMIC_LONG_H */
 EOF
diff --git a/scripts/atomic/gen-atomics.sh b/scripts/atomic/gen-atomics.sh
index d29e159ef489..5b98a8307693 100755
--- a/scripts/atomic/gen-atomics.sh
+++ b/scripts/atomic/gen-atomics.sh
@@ -8,10 +8,9 @@ ATOMICTBL=${ATOMICDIR}/atomics.tbl
 LINUXDIR=${ATOMICDIR}/../..
 
 cat <<EOF |
-gen-atomic-instrumented.sh      asm-generic/atomic-instrumented.h
-gen-atomic-long.sh              asm-generic/atomic-long.h
-gen-atomic-fallback.sh          linux/atomic-arch-fallback.h		arch_
-gen-atomic-fallback.sh          linux/atomic-fallback.h
+gen-atomic-instrumented.sh      linux/atomic/atomic-instrumented.h
+gen-atomic-long.sh              linux/atomic/atomic-long.h
+gen-atomic-fallback.sh          linux/atomic/atomic-arch-fallback.h
 EOF
 while read script header args; do
 	/bin/sh ${ATOMICDIR}/${script} ${ATOMICTBL} ${args} > ${LINUXDIR}/include/${header}
diff --git a/scripts/bpf_doc.py b/scripts/bpf_doc.py
index 2d94025b38e9..00ac7b79cddb 100755
--- a/scripts/bpf_doc.py
+++ b/scripts/bpf_doc.py
@@ -547,6 +547,7 @@ class PrinterHelpers(Printer):
             'struct inode',
             'struct socket',
             'struct file',
+            'struct bpf_timer',
     ]
     known_types = {
             '...',
@@ -594,6 +595,7 @@ class PrinterHelpers(Printer):
             'struct inode',
             'struct socket',
             'struct file',
+            'struct bpf_timer',
     }
     mapped_types = {
             'u8': '__u8',
diff --git a/scripts/check_extable.sh b/scripts/check_extable.sh
index 93af93c7b346..4b380564cf74 100755
--- a/scripts/check_extable.sh
+++ b/scripts/check_extable.sh
@@ -4,7 +4,7 @@
 
 obj=$1
 
-file ${obj} | grep -q ELF || (echo "${obj} is not and ELF file." 1>&2 ; exit 0)
+file ${obj} | grep -q ELF || (echo "${obj} is not an ELF file." 1>&2 ; exit 0)
 
 # Bail out early if there isn't an __ex_table section in this object file.
 objdump -hj __ex_table ${obj} 2> /dev/null > /dev/null
diff --git a/scripts/checkdeclares.pl b/scripts/checkdeclares.pl
index f6d551c84fc6..f6d551c84fc6 100644..100755
--- a/scripts/checkdeclares.pl
+++ b/scripts/checkdeclares.pl
diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py
index 1548f9ce4682..217d21abc86e 100755
--- a/scripts/checkkconfigsymbols.py
+++ b/scripts/checkkconfigsymbols.py
@@ -34,7 +34,6 @@ REGEX_SOURCE_SYMBOL = re.compile(SOURCE_SYMBOL)
 REGEX_KCONFIG_DEF = re.compile(DEF)
 REGEX_KCONFIG_EXPR = re.compile(EXPR)
 REGEX_KCONFIG_STMT = re.compile(STMT)
-REGEX_KCONFIG_HELP = re.compile(r"^\s+help\s*$")
 REGEX_FILTER_SYMBOLS = re.compile(r"[A-Za-z0-9]$")
 REGEX_NUMERIC = re.compile(r"0[xX][0-9a-fA-F]+|[0-9]+")
 REGEX_QUOTES = re.compile("(\"(.*?)\")")
@@ -102,6 +101,9 @@ def parse_options():
                      "continue.")
 
     if args.commit:
+        if args.commit.startswith('HEAD'):
+            sys.exit("The --commit option can't use the HEAD ref")
+
         args.find = False
 
     if args.ignore:
@@ -329,7 +331,7 @@ def check_symbols_helper(pool, ignore):
         if REGEX_FILE_KCONFIG.match(gitfile):
             kconfig_files.append(gitfile)
         else:
-            if ignore and not re.match(ignore, gitfile):
+            if ignore and re.match(ignore, gitfile):
                 continue
             # add source files that do not match the ignore pattern
             source_files.append(gitfile)
@@ -432,7 +434,6 @@ def parse_kconfig_file(kfile):
     lines = []
     defined = []
     references = []
-    skip = False
 
     if not os.path.exists(kfile):
         return defined, references
@@ -448,12 +449,6 @@ def parse_kconfig_file(kfile):
         if REGEX_KCONFIG_DEF.match(line):
             symbol_def = REGEX_KCONFIG_DEF.findall(line)
             defined.append(symbol_def[0])
-            skip = False
-        elif REGEX_KCONFIG_HELP.match(line):
-            skip = True
-        elif skip:
-            # ignore content of help messages
-            pass
         elif REGEX_KCONFIG_STMT.match(line):
             line = REGEX_QUOTES.sub("", line)
             symbols = get_symbols_in_line(line)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 23697a6b1eaa..c27d2312cfc3 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -501,7 +501,7 @@ our $Binary	= qr{(?i)0b[01]+$Int_type?};
 our $Hex	= qr{(?i)0x[0-9a-f]+$Int_type?};
 our $Int	= qr{[0-9]+$Int_type?};
 our $Octal	= qr{0[0-7]+$Int_type?};
-our $String	= qr{"[X\t]*"};
+our $String	= qr{(?:\b[Lu])?"[X\t]*"};
 our $Float_hex	= qr{(?i)0x[0-9a-f]+p-?[0-9]+[fl]?};
 our $Float_dec	= qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?};
 our $Float_int	= qr{(?i)[0-9]+e-?[0-9]+[fl]?};
@@ -1084,10 +1084,10 @@ sub is_maintained_obsolete {
 sub is_SPDX_License_valid {
 	my ($license) = @_;
 
-	return 1 if (!$tree || which("python") eq "" || !(-e "$root/scripts/spdxcheck.py") || !(-e "$gitroot"));
+	return 1 if (!$tree || which("python3") eq "" || !(-x "$root/scripts/spdxcheck.py") || !(-e "$gitroot"));
 
 	my $root_path = abs_path($root);
-	my $status = `cd "$root_path"; echo "$license" | python scripts/spdxcheck.py -`;
+	my $status = `cd "$root_path"; echo "$license" | scripts/spdxcheck.py -`;
 	return 0 if ($status ne "");
 	return 1;
 }
@@ -1181,7 +1181,8 @@ sub git_commit_info {
 #		    git log --format='%H %s' -1 $line |
 #		    echo "commit $(cut -c 1-12,41-)"
 #		done
-	} elsif ($lines[0] =~ /^fatal: ambiguous argument '$commit': unknown revision or path not in the working tree\./) {
+	} elsif ($lines[0] =~ /^fatal: ambiguous argument '$commit': unknown revision or path not in the working tree\./ ||
+		 $lines[0] =~ /^fatal: bad object $commit/) {
 		$id = undef;
 	} else {
 		$id = substr($lines[0], 0, 12);
@@ -2587,6 +2588,8 @@ sub process {
 	my $reported_maintainer_file = 0;
 	my $non_utf8_charset = 0;
 
+	my $last_git_commit_id_linenr = -1;
+
 	my $last_blank_line = 0;
 	my $last_coalesced_string_linenr = -1;
 
@@ -2909,10 +2912,10 @@ sub process {
 					my ($email_name, $email_comment, $email_address, $comment1) = parse_email($ctx);
 					my ($author_name, $author_comment, $author_address, $comment2) = parse_email($author);
 
-					if ($email_address eq $author_address && $email_name eq $author_name) {
+					if (lc $email_address eq lc $author_address && $email_name eq $author_name) {
 						$author_sob = $ctx;
 						$authorsignoff = 2;
-					} elsif ($email_address eq $author_address) {
+					} elsif (lc $email_address eq lc $author_address) {
 						$author_sob = $ctx;
 						$authorsignoff = 3;
 					} elsif ($email_name eq $author_name) {
@@ -3170,10 +3173,20 @@ sub process {
 		}
 
 # Check for git id commit length and improperly formed commit descriptions
-		if ($in_commit_log && !$commit_log_possible_stack_dump &&
+# A correctly formed commit description is:
+#    commit <SHA-1 hash length 12+ chars> ("Complete commit subject")
+# with the commit subject '("' prefix and '")' suffix
+# This is a fairly compilicated block as it tests for what appears to be
+# bare SHA-1 hash with  minimum length of 5.  It also avoids several types of
+# possible SHA-1 matches.
+# A commit match can span multiple lines so this block attempts to find a
+# complete typical commit on a maximum of 3 lines
+		if ($perl_version_ok &&
+		    $in_commit_log && !$commit_log_possible_stack_dump &&
 		    $line !~ /^\s*(?:Link|Patchwork|http|https|BugLink|base-commit):/i &&
 		    $line !~ /^This reverts commit [0-9a-f]{7,40}/ &&
-		    ($line =~ /\bcommit\s+[0-9a-f]{5,}\b/i ||
+		    (($line =~ /\bcommit\s+[0-9a-f]{5,}\b/i ||
+		      ($line =~ /\bcommit\s*$/i && defined($rawlines[$linenr]) && $rawlines[$linenr] =~ /^\s*[0-9a-f]{5,}\b/i)) ||
 		     ($line =~ /(?:\s|^)[0-9a-f]{12,40}(?:[\s"'\(\[]|$)/i &&
 		      $line !~ /[\<\[][0-9a-f]{12,40}[\>\]]/i &&
 		      $line !~ /\bfixes:\s*[0-9a-f]{12,40}/i))) {
@@ -3183,49 +3196,56 @@ sub process {
 			my $long = 0;
 			my $case = 1;
 			my $space = 1;
-			my $hasdesc = 0;
-			my $hasparens = 0;
 			my $id = '0123456789ab';
 			my $orig_desc = "commit description";
 			my $description = "";
+			my $herectx = $herecurr;
+			my $has_parens = 0;
+			my $has_quotes = 0;
 
-			if ($line =~ /\b(c)ommit\s+([0-9a-f]{5,})\b/i) {
+			my $input = $line;
+			if ($line =~ /(?:\bcommit\s+[0-9a-f]{5,}|\bcommit\s*$)/i) {
+				for (my $n = 0; $n < 2; $n++) {
+					if ($input =~ /\bcommit\s+[0-9a-f]{5,}\s*($balanced_parens)/i) {
+						$orig_desc = $1;
+						$has_parens = 1;
+						# Always strip leading/trailing parens then double quotes if existing
+						$orig_desc = substr($orig_desc, 1, -1);
+						if ($orig_desc =~ /^".*"$/) {
+							$orig_desc = substr($orig_desc, 1, -1);
+							$has_quotes = 1;
+						}
+						last;
+					}
+					last if ($#lines < $linenr + $n);
+					$input .= " " . trim($rawlines[$linenr + $n]);
+					$herectx .= "$rawlines[$linenr + $n]\n";
+				}
+				$herectx = $herecurr if (!$has_parens);
+			}
+
+			if ($input =~ /\b(c)ommit\s+([0-9a-f]{5,})\b/i) {
 				$init_char = $1;
 				$orig_commit = lc($2);
-			} elsif ($line =~ /\b([0-9a-f]{12,40})\b/i) {
+				$short = 0 if ($input =~ /\bcommit\s+[0-9a-f]{12,40}/i);
+				$long = 1 if ($input =~ /\bcommit\s+[0-9a-f]{41,}/i);
+				$space = 0 if ($input =~ /\bcommit [0-9a-f]/i);
+				$case = 0 if ($input =~ /\b[Cc]ommit\s+[0-9a-f]{5,40}[^A-F]/);
+			} elsif ($input =~ /\b([0-9a-f]{12,40})\b/i) {
 				$orig_commit = lc($1);
 			}
 
-			$short = 0 if ($line =~ /\bcommit\s+[0-9a-f]{12,40}/i);
-			$long = 1 if ($line =~ /\bcommit\s+[0-9a-f]{41,}/i);
-			$space = 0 if ($line =~ /\bcommit [0-9a-f]/i);
-			$case = 0 if ($line =~ /\b[Cc]ommit\s+[0-9a-f]{5,40}[^A-F]/);
-			if ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("([^"]+)"\)/i) {
-				$orig_desc = $1;
-				$hasparens = 1;
-			} elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s*$/i &&
-				 defined $rawlines[$linenr] &&
-				 $rawlines[$linenr] =~ /^\s*\("([^"]+)"\)/) {
-				$orig_desc = $1;
-				$hasparens = 1;
-			} elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("[^"]+$/i &&
-				 defined $rawlines[$linenr] &&
-				 $rawlines[$linenr] =~ /^\s*[^"]+"\)/) {
-				$line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("([^"]+)$/i;
-				$orig_desc = $1;
-				$rawlines[$linenr] =~ /^\s*([^"]+)"\)/;
-				$orig_desc .= " " . $1;
-				$hasparens = 1;
-			}
-
 			($id, $description) = git_commit_info($orig_commit,
 							      $id, $orig_desc);
 
 			if (defined($id) &&
-			   ($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens)) {
+			    ($short || $long || $space || $case || ($orig_desc ne $description) || !$has_quotes) &&
+			    $last_git_commit_id_linenr != $linenr - 1) {
 				ERROR("GIT_COMMIT_ID",
-				      "Please use git commit description style 'commit <12+ chars of sha1> (\"<title line>\")' - ie: '${init_char}ommit $id (\"$description\")'\n" . $herecurr);
+				      "Please use git commit description style 'commit <12+ chars of sha1> (\"<title line>\")' - ie: '${init_char}ommit $id (\"$description\")'\n" . $herectx);
 			}
+			#don't report the next line if this line ends in commit and the sha1 hash is the next line
+			$last_git_commit_id_linenr = $linenr if ($line =~ /\bcommit\s*$/i);
 		}
 
 # Check for added, moved or deleted files
@@ -5361,9 +5381,13 @@ sub process {
 			}
 		}
 
-#goto labels aren't indented, allow a single space however
-		if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
-		   !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
+# check that goto labels aren't indented (allow a single space indentation)
+# and ignore bitfield definitions like foo:1
+# Strictly, labels can have whitespace after the identifier and before the :
+# but this is not allowed here as many ?: uses would appear to be labels
+		if ($sline =~ /^.\s+[A-Za-z_][A-Za-z\d_]*:(?!\s*\d+)/ &&
+		    $sline !~ /^. [A-Za-z\d_][A-Za-z\d_]*:/ &&
+		    $sline !~ /^.\s+default:/) {
 			if (WARN("INDENTED_LABEL",
 				 "labels should not be indented\n" . $herecurr) &&
 			    $fix) {
@@ -5458,7 +5482,7 @@ sub process {
 # Return of what appears to be an errno should normally be negative
 		if ($sline =~ /\breturn(?:\s*\(+\s*|\s+)(E[A-Z]+)(?:\s*\)+\s*|\s*)[;:,]/) {
 			my $name = $1;
-			if ($name ne 'EOF' && $name ne 'ERROR') {
+			if ($name ne 'EOF' && $name ne 'ERROR' && $name !~ /^EPOLL/) {
 				WARN("USE_NEGATIVE_ERRNO",
 				     "return of an errno should typically be negative (ie: return -$1)\n" . $herecurr);
 			}
@@ -6128,7 +6152,8 @@ sub process {
 		}
 
 # concatenated string without spaces between elements
-		if ($line =~ /$String[A-Za-z0-9_]/ || $line =~ /[A-Za-z0-9_]$String/) {
+		if ($line =~ /$String[A-Z_]/ ||
+		    ($line =~ /([A-Za-z0-9_]+)$String/ && $1 !~ /^[Lu]$/)) {
 			if (CHK("CONCATENATED_STRING",
 				"Concatenated strings should use spaces between elements\n" . $herecurr) &&
 			    $fix) {
@@ -6141,7 +6166,7 @@ sub process {
 		}
 
 # uncoalesced string fragments
-		if ($line =~ /$String\s*"/) {
+		if ($line =~ /$String\s*[Lu]?"/) {
 			if (WARN("STRING_FRAGMENTS",
 				 "Consecutive strings are generally better as a single string\n" . $herecurr) &&
 			    $fix) {
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index a18b47695f55..9dbab13329fa 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -40,6 +40,10 @@ cat << EOF
 #define __IGNORE_setrlimit	/* setrlimit */
 #endif
 
+#ifndef __ARCH_WANT_MEMFD_SECRET
+#define __IGNORE_memfd_secret
+#endif
+
 /* Missing flags argument */
 #define __IGNORE_renameat	/* renameat2 */
 
@@ -78,10 +82,8 @@ cat << EOF
 #define __IGNORE_truncate64
 #define __IGNORE_stat64
 #define __IGNORE_lstat64
-#define __IGNORE_fstat64
 #define __IGNORE_fcntl64
 #define __IGNORE_fadvise64_64
-#define __IGNORE_fstatat64
 #define __IGNORE_fstatfs64
 #define __IGNORE_statfs64
 #define __IGNORE_llseek
@@ -249,6 +251,10 @@ cat << EOF
 #define __IGNORE_getpmsg
 #define __IGNORE_putpmsg
 #define __IGNORE_vserver
+
+/* 64-bit ports never needed these, and new 32-bit ports can use statx */
+#define __IGNORE_fstat64
+#define __IGNORE_fstatat64
 EOF
 }
 
@@ -262,4 +268,4 @@ syscall_list() {
 }
 
 (ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \
-$* -E -x c - > /dev/null
+$* -Wno-error -E -x c - > /dev/null
diff --git a/scripts/checkversion.pl b/scripts/checkversion.pl
index f67b125c5269..94cd49eff605 100755
--- a/scripts/checkversion.pl
+++ b/scripts/checkversion.pl
@@ -1,10 +1,10 @@
 #! /usr/bin/env perl
 # SPDX-License-Identifier: GPL-2.0
 #
-# checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION
-# without including <linux/version.h>, or cases of
-# including <linux/version.h> that don't need it.
-# Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>
+# checkversion finds uses of all macros in <linux/version.h>
+# where the source files do not #include <linux/version.h>; or cases
+# of including <linux/version.h> where it is not needed.
+# Copyright (C) 2003, Randy Dunlap <rdunlap@infradead.org>
 
 use strict;
 
@@ -13,7 +13,8 @@ $| = 1;
 my $debugging;
 
 foreach my $file (@ARGV) {
-    next if $file =~ "include/linux/version\.h";
+    next if $file =~ "include/generated/uapi/linux/version\.h";
+    next if $file =~ "usr/include/linux/version\.h";
     # Open this file.
     open( my $f, '<', $file )
       or die "Can't open $file: $!\n";
@@ -41,8 +42,11 @@ foreach my $file (@ARGV) {
 	    $iLinuxVersion      = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
 	}
 
-	# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, UTS_RELEASE
-	if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/)) {
+	# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION,
+	# LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL
+	if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/) ||
+	    ($_ =~ /LINUX_VERSION_MAJOR/) || ($_ =~ /LINUX_VERSION_PATCHLEVEL/) ||
+	    ($_ =~ /LINUX_VERSION_SUBLEVEL/)) {
 	    $fUseVersion = 1;
             last if $iLinuxVersion;
         }
diff --git a/scripts/clang-tools/gen_compile_commands.py b/scripts/clang-tools/gen_compile_commands.py
index b7e9ecf16e56..1d1bde1fd45e 100755
--- a/scripts/clang-tools/gen_compile_commands.py
+++ b/scripts/clang-tools/gen_compile_commands.py
@@ -13,12 +13,13 @@ import logging
 import os
 import re
 import subprocess
+import sys
 
 _DEFAULT_OUTPUT = 'compile_commands.json'
 _DEFAULT_LOG_LEVEL = 'WARNING'
 
 _FILENAME_PATTERN = r'^\..*\.cmd$'
-_LINE_PATTERN = r'^cmd_[^ ]*\.o := (.* )([^ ]*\.c)$'
+_LINE_PATTERN = r'^cmd_[^ ]*\.o := (.* )([^ ]*\.c) *(;|$)'
 _VALID_LOG_LEVELS = ['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL']
 # The tools/ directory adopts a different build system, and produces .cmd
 # files in a different format. Do not support it.
diff --git a/scripts/coccicheck b/scripts/coccicheck
index 65fee63aeadb..caba0bff6da7 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -87,7 +87,7 @@ else
     fi
 
     # Use only one thread per core by default if hyperthreading is enabled
-    THREADS_PER_CORE=$(lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]")
+    THREADS_PER_CORE=$(LANG=C lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]")
     if [ -z "$J" ]; then
         NPROC=$(getconf _NPROCESSORS_ONLN)
 	if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 4 ] ; then
diff --git a/scripts/coccinelle/api/kobj_to_dev.cocci b/scripts/coccinelle/api/kobj_to_dev.cocci
deleted file mode 100644
index cd5d31c6fe76..000000000000
--- a/scripts/coccinelle/api/kobj_to_dev.cocci
+++ /dev/null
@@ -1,45 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-///
-/// Use kobj_to_dev() instead of container_of()
-///
-// Confidence: High
-// Copyright: (C) 2020 Denis Efremov ISPRAS
-// Options: --no-includes --include-headers
-//
-// Keywords: kobj_to_dev, container_of
-//
-
-virtual context
-virtual report
-virtual org
-virtual patch
-
-
-@r depends on !patch@
-expression ptr;
-symbol kobj;
-position p;
-@@
-
-* container_of(ptr, struct device, kobj)@p
-
-
-@depends on patch@
-expression ptr;
-@@
-
-- container_of(ptr, struct device, kobj)
-+ kobj_to_dev(ptr)
-
-
-@script:python depends on report@
-p << r.p;
-@@
-
-coccilib.report.print_report(p[0], "WARNING opportunity for kobj_to_dev()")
-
-@script:python depends on org@
-p << r.p;
-@@
-
-coccilib.org.print_todo(p[0], "WARNING opportunity for kobj_to_dev()")
diff --git a/scripts/coccinelle/api/kvmalloc.cocci b/scripts/coccinelle/api/kvmalloc.cocci
index c30dab718a49..5ddcb76b76b0 100644
--- a/scripts/coccinelle/api/kvmalloc.cocci
+++ b/scripts/coccinelle/api/kvmalloc.cocci
@@ -79,7 +79,7 @@ position p : script:python() { relevant(p) };
   } else {
     ... when != krealloc(E, ...)
         when any
-*   \(kfree\|kzfree\)(E)
+*   \(kfree\|kfree_sensitive\)(E)
     ...
   }
 
diff --git a/scripts/coccinelle/free/kfree.cocci b/scripts/coccinelle/free/kfree.cocci
index 168568386034..9b6e2037c2a9 100644
--- a/scripts/coccinelle/free/kfree.cocci
+++ b/scripts/coccinelle/free/kfree.cocci
@@ -22,9 +22,9 @@ position p1;
 @@
 
 (
-* kfree@p1(E)
+ kfree@p1(E)
 |
-* kfree_sensitive@p1(E)
+ kfree_sensitive@p1(E)
 )
 
 @print expression@
@@ -66,9 +66,9 @@ position ok;
 
 while (1) { ...
 (
-* kfree@ok(E)
+ kfree@ok(E)
 |
-* kfree_sensitive@ok(E)
+ kfree_sensitive@ok(E)
 )
   ... when != break;
       when != goto l;
@@ -84,9 +84,9 @@ position free.p1!=loop.ok,p2!={print.p,sz.p};
 @@
 
 (
-* kfree@p1(E,...)
+ kfree@p1(E,...)
 |
-* kfree_sensitive@p1(E,...)
+ kfree_sensitive@p1(E,...)
 )
 ...
 (
diff --git a/scripts/coccinelle/iterators/use_after_iter.cocci b/scripts/coccinelle/iterators/use_after_iter.cocci
index 9be48b520879..676edd562eef 100644
--- a/scripts/coccinelle/iterators/use_after_iter.cocci
+++ b/scripts/coccinelle/iterators/use_after_iter.cocci
@@ -123,6 +123,8 @@ hlist_for_each_entry_safe(c,...) S
 |
 list_remove_head(x,c,...)
 |
+list_entry_is_head(c,...)
+|
 sizeof(<+...c...+>)
 |
  &c->member
diff --git a/scripts/coccinelle/misc/flexible_array.cocci b/scripts/coccinelle/misc/flexible_array.cocci
index 947fbaff82a9..f427fd68ed2d 100644
--- a/scripts/coccinelle/misc/flexible_array.cocci
+++ b/scripts/coccinelle/misc/flexible_array.cocci
@@ -51,21 +51,40 @@ position p : script:python() { relevant(p) };
   };
 )
 
+@only_field depends on patch@
+identifier name, array;
+type T;
+position q;
+@@
+
+(
+  struct name {@q
+    T array[0];
+  };
+|
+  struct {@q
+    T array[0];
+  };
+)
+
 @depends on patch@
 identifier name, array;
 type T;
 position p : script:python() { relevant(p) };
+// position @q with rule "only_field" simplifies
+// handling of bitfields, arrays, etc.
+position q != only_field.q;
 @@
 
 (
-  struct name {
+  struct name {@q
     ...
     T array@p[
 -       0
     ];
   };
 |
-  struct {
+  struct {@q
     ...
     T array@p[
 -       0
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci
index 7b48287b3dc1..9b6f404d07f2 100644
--- a/scripts/coccinelle/misc/irqf_oneshot.cocci
+++ b/scripts/coccinelle/misc/irqf_oneshot.cocci
@@ -103,11 +103,11 @@ devm_request_threaded_irq@p(dev, irq, NULL, ...)
 @script:python depends on org@
 p << match.p;
 @@
-msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
+msg = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
 coccilib.org.print_todo(p[0],msg)
 
 @script:python depends on report@
 p << match.p;
 @@
-msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
+msg = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
 coccilib.report.print_report(p[0],msg)
diff --git a/scripts/coccinelle/misc/minmax.cocci b/scripts/coccinelle/misc/minmax.cocci
new file mode 100644
index 000000000000..fcf908b34f27
--- /dev/null
+++ b/scripts/coccinelle/misc/minmax.cocci
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0-only
+///
+/// Check for opencoded min(), max() implementations.
+/// Generated patches sometimes require adding a cast to fix compile warning.
+/// Warnings/patches scope intentionally limited to a function body.
+///
+// Confidence: Medium
+// Copyright: (C) 2021 Denis Efremov ISPRAS
+// Options: --no-includes --include-headers
+//
+// Keywords: min, max
+//
+
+
+virtual report
+virtual org
+virtual context
+virtual patch
+
+@rmax depends on !patch@
+identifier func;
+expression x, y;
+binary operator cmp = {>, >=};
+position p;
+@@
+
+func(...)
+{
+	<...
+*	((x) cmp@p (y) ? (x) : (y))
+	...>
+}
+
+@rmaxif depends on !patch@
+identifier func;
+expression x, y;
+expression max_val;
+binary operator cmp = {>, >=};
+position p;
+@@
+
+func(...)
+{
+	<...
+*	if ((x) cmp@p (y)) {
+*		max_val = (x);
+*	} else {
+*		max_val = (y);
+*	}
+	...>
+}
+
+@rmin depends on !patch@
+identifier func;
+expression x, y;
+binary operator cmp = {<, <=};
+position p;
+@@
+
+func(...)
+{
+	<...
+*	((x) cmp@p (y) ? (x) : (y))
+	...>
+}
+
+@rminif depends on !patch@
+identifier func;
+expression x, y;
+expression min_val;
+binary operator cmp = {<, <=};
+position p;
+@@
+
+func(...)
+{
+	<...
+*	if ((x) cmp@p (y)) {
+*		min_val = (x);
+*	} else {
+*		min_val = (y);
+*	}
+	...>
+}
+
+@pmax depends on patch@
+identifier func;
+expression x, y;
+binary operator cmp = {>=, >};
+@@
+
+func(...)
+{
+	<...
+-	((x) cmp (y) ? (x) : (y))
++	max(x, y)
+	...>
+}
+
+@pmaxif depends on patch@
+identifier func;
+expression x, y;
+expression max_val;
+binary operator cmp = {>=, >};
+@@
+
+func(...)
+{
+	<...
+-	if ((x) cmp (y)) {
+-		max_val = x;
+-	} else {
+-		max_val = y;
+-	}
++	max_val = max(x, y);
+	...>
+}
+
+// Don't generate patches for errcode returns.
+@errcode depends on patch@
+position p;
+identifier func;
+expression x;
+binary operator cmp = {<, <=};
+@@
+
+func(...)
+{
+	<...
+	return ((x) cmp@p 0 ? (x) : 0);
+	...>
+}
+
+@pmin depends on patch@
+identifier func;
+expression x, y;
+binary operator cmp = {<=, <};
+position p != errcode.p;
+@@
+
+func(...)
+{
+	<...
+-	((x) cmp@p (y) ? (x) : (y))
++	min(x, y)
+	...>
+}
+
+@pminif depends on patch@
+identifier func;
+expression x, y;
+expression min_val;
+binary operator cmp = {<=, <};
+@@
+
+func(...)
+{
+	<...
+-	if ((x) cmp (y)) {
+-		min_val = x;
+-	} else {
+-		min_val = y;
+-	}
++	min_val = min(x, y);
+	...>
+}
+
+@script:python depends on report@
+p << rmax.p;
+@@
+
+for p0 in p:
+	coccilib.report.print_report(p0, "WARNING opportunity for max()")
+
+@script:python depends on org@
+p << rmax.p;
+@@
+
+for p0 in p:
+	coccilib.org.print_todo(p0, "WARNING opportunity for max()")
+
+@script:python depends on report@
+p << rmaxif.p;
+@@
+
+for p0 in p:
+	coccilib.report.print_report(p0, "WARNING opportunity for max()")
+
+@script:python depends on org@
+p << rmaxif.p;
+@@
+
+for p0 in p:
+	coccilib.org.print_todo(p0, "WARNING opportunity for max()")
+
+@script:python depends on report@
+p << rmin.p;
+@@
+
+for p0 in p:
+	coccilib.report.print_report(p0, "WARNING opportunity for min()")
+
+@script:python depends on org@
+p << rmin.p;
+@@
+
+for p0 in p:
+	coccilib.org.print_todo(p0, "WARNING opportunity for min()")
+
+@script:python depends on report@
+p << rminif.p;
+@@
+
+for p0 in p:
+	coccilib.report.print_report(p0, "WARNING opportunity for min()")
+
+@script:python depends on org@
+p << rminif.p;
+@@
+
+for p0 in p:
+	coccilib.org.print_todo(p0, "WARNING opportunity for min()")
diff --git a/scripts/coccinelle/misc/swap.cocci b/scripts/coccinelle/misc/swap.cocci
new file mode 100644
index 000000000000..c5e71b7ef7f5
--- /dev/null
+++ b/scripts/coccinelle/misc/swap.cocci
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0-only
+///
+/// Check for opencoded swap() implementation.
+///
+// Confidence: High
+// Copyright: (C) 2021 Denis Efremov ISPRAS
+// Options: --no-includes --include-headers
+//
+// Keywords: swap
+//
+
+virtual patch
+virtual org
+virtual report
+virtual context
+
+@rvar depends on !patch@
+identifier tmp;
+expression a, b;
+type T;
+position p;
+@@
+
+(
+* T tmp;
+|
+* T tmp = 0;
+|
+* T *tmp = NULL;
+)
+... when != tmp
+* tmp = a;
+* a = b;@p
+* b = tmp;
+... when != tmp
+
+@r depends on !patch@
+identifier tmp;
+expression a, b;
+position p != rvar.p;
+@@
+
+* tmp = a;
+* a = b;@p
+* b = tmp;
+
+@rpvar depends on patch@
+identifier tmp;
+expression a, b;
+type T;
+@@
+
+(
+- T tmp;
+|
+- T tmp = 0;
+|
+- T *tmp = NULL;
+)
+... when != tmp
+- tmp = a;
+- a = b;
+- b = tmp
++ swap(a, b)
+  ;
+... when != tmp
+
+@rp depends on patch@
+identifier tmp;
+expression a, b;
+@@
+
+- tmp = a;
+- a = b;
+- b = tmp
++ swap(a, b)
+  ;
+
+@depends on patch && (rpvar || rp)@
+@@
+
+(
+  for (...;...;...)
+- {
+	swap(...);
+- }
+|
+  while (...)
+- {
+	swap(...);
+- }
+|
+  if (...)
+- {
+	swap(...);
+- }
+)
+
+
+@script:python depends on report@
+p << r.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for swap()")
+
+@script:python depends on org@
+p << r.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for swap()")
+
+@script:python depends on report@
+p << rvar.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for swap()")
+
+@script:python depends on org@
+p << rvar.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for swap()")
diff --git a/scripts/coccinelle/misc/uninitialized_var.cocci b/scripts/coccinelle/misc/uninitialized_var.cocci
index 8fa845cefe11..69bbaae47e73 100644
--- a/scripts/coccinelle/misc/uninitialized_var.cocci
+++ b/scripts/coccinelle/misc/uninitialized_var.cocci
@@ -1,7 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-only
 ///
 /// Please, don't reintroduce uninitialized_var().
-/// From Documentation/process/deprecated.rst:
+///
+/// From Documentation/process/deprecated.rst,
+/// commit 4b19bec97c88 ("docs: deprecated.rst: Add uninitialized_var()"):
 ///  For any compiler warnings about uninitialized variables, just add
 ///  an initializer. Using warning-silencing tricks is dangerous as it
 ///  papers over real bugs (or can in the future), and suppresses unrelated
@@ -11,6 +13,11 @@
 ///  obviously redundant, the compiler's dead-store elimination pass will make
 ///  sure there are no needless variable writes.
 ///
+/// Later, commit 3942ea7a10c9 ("deprecated.rst: Remove now removed
+/// uninitialized_var") removed this section because all initializations of
+/// this kind were cleaned-up from the kernel. This cocci rule checks that
+/// the macro is not explicitly or implicitly reintroduced.
+///
 // Confidence: High
 // Copyright: (C) 2020 Denis Efremov ISPRAS
 // Options: --no-includes --include-headers
@@ -40,12 +47,10 @@ position p;
 p << r.p;
 @@
 
-coccilib.report.print_report(p[0],
-  "WARNING this kind of initialization is deprecated (https://www.kernel.org/doc/html/latest/process/deprecated.html#uninitialized-var)")
+coccilib.report.print_report(p[0], "WARNING this kind of initialization is deprecated")
 
 @script:python depends on org@
 p << r.p;
 @@
 
-coccilib.org.print_todo(p[0],
-  "WARNING this kind of initialization is deprecated (https://www.kernel.org/doc/html/latest/process/deprecated.html#uninitialized-var)")
+coccilib.org.print_todo(p[0], "WARNING this kind of initialization is deprecated")
diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 90398347e366..5fbad61fe490 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -3,11 +3,10 @@
 # (c) 2014, Sasha Levin <sasha.levin@oracle.com>
 #set -x
 
-if [[ $# < 1 ]]; then
+usage() {
 	echo "Usage:"
-	echo "	$0 -r <release> | <vmlinux> [base path] [modules path]"
-	exit 1
-fi
+	echo "	$0 -r <release> | <vmlinux> [<base path>|auto] [<modules path>]"
+}
 
 if [[ $1 == "-r" ]] ; then
 	vmlinux=""
@@ -24,6 +23,7 @@ if [[ $1 == "-r" ]] ; then
 
 	if [[ $vmlinux == "" ]] ; then
 		echo "ERROR! vmlinux image for release $release is not found" >&2
+		usage
 		exit 2
 	fi
 else
@@ -31,12 +31,35 @@ else
 	basepath=${2-auto}
 	modpath=$3
 	release=""
+	debuginfod=
+
+	# Can we use debuginfod-find?
+	if type debuginfod-find >/dev/null 2>&1 ; then
+		debuginfod=${1-only}
+	fi
+
+	if [[ $vmlinux == "" && -z $debuginfod ]] ; then
+		echo "ERROR! vmlinux image must be specified" >&2
+		usage
+		exit 1
+	fi
 fi
 
 declare -A cache
 declare -A modcache
 
 find_module() {
+	if [[ -n $debuginfod ]] ; then
+		if [[ -n $modbuildid ]] ; then
+			debuginfod-find debuginfo $modbuildid && return
+		fi
+
+		# Only using debuginfod so don't try to find vmlinux module path
+		if [[ $debuginfod == "only" ]] ; then
+			return
+		fi
+	fi
+
 	if [[ "$modpath" != "" ]] ; then
 		for fn in $(find "$modpath" -name "${module//_/[-_]}.ko*") ; do
 			if readelf -WS "$fn" | grep -qwF .debug_line ; then
@@ -51,7 +74,7 @@ find_module() {
 	find_module && return
 
 	if [[ $release == "" ]] ; then
-		release=$(gdb -ex 'print init_uts_ns.name.release' -ex 'quit' -quiet -batch "$vmlinux" | sed -n 's/\$1 = "\(.*\)".*/\1/p')
+		release=$(gdb -ex 'print init_uts_ns.name.release' -ex 'quit' -quiet -batch "$vmlinux" 2>/dev/null | sed -n 's/\$1 = "\(.*\)".*/\1/p')
 	fi
 
 	for dn in {/usr/lib/debug,}/lib/modules/$release ; do
@@ -105,7 +128,7 @@ parse_symbol() {
 	if [[ "${cache[$module,$name]+isset}" == "isset" ]]; then
 		local base_addr=${cache[$module,$name]}
 	else
-		local base_addr=$(nm "$objfile" | awk '$3 == "'$name'" && ($2 == "t" || $2 == "T") {print $1; exit}')
+		local base_addr=$(nm "$objfile" 2>/dev/null | awk '$3 == "'$name'" && ($2 == "t" || $2 == "T") {print $1; exit}')
 		if [[ $base_addr == "" ]] ; then
 			# address not found
 			return
@@ -129,7 +152,7 @@ parse_symbol() {
 	if [[ "${cache[$module,$address]+isset}" == "isset" ]]; then
 		local code=${cache[$module,$address]}
 	else
-		local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address")
+		local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address" 2>/dev/null)
 		cache[$module,$address]=$code
 	fi
 
@@ -150,6 +173,27 @@ parse_symbol() {
 	symbol="$segment$name ($code)"
 }
 
+debuginfod_get_vmlinux() {
+	local vmlinux_buildid=${1##* }
+
+	if [[ $vmlinux != "" ]]; then
+		return
+	fi
+
+	if [[ $vmlinux_buildid =~ ^[0-9a-f]+ ]]; then
+		vmlinux=$(debuginfod-find debuginfo $vmlinux_buildid)
+		if [[ $? -ne 0 ]] ; then
+			echo "ERROR! vmlinux image not found via debuginfod-find" >&2
+			usage
+			exit 2
+		fi
+		return
+	fi
+	echo "ERROR! Build ID for vmlinux not found. Try passing -r or specifying vmlinux" >&2
+	usage
+	exit 2
+}
+
 decode_code() {
 	local scripts=`dirname "${BASH_SOURCE[0]}"`
 
@@ -157,6 +201,14 @@ decode_code() {
 }
 
 handle_line() {
+	if [[ $basepath == "auto" && $vmlinux != "" ]] ; then
+		module=""
+		symbol="kernel_init+0x0/0x0"
+		parse_symbol
+		basepath=${symbol#kernel_init (}
+		basepath=${basepath%/init/main.c:*)}
+	fi
+
 	local words
 
 	# Tokenize
@@ -182,16 +234,28 @@ handle_line() {
 		fi
 	done
 
+	if [[ ${words[$last]} =~ ^[0-9a-f]+\] ]]; then
+		words[$last-1]="${words[$last-1]} ${words[$last]}"
+		unset words[$last]
+		last=$(( $last - 1 ))
+	fi
+
 	if [[ ${words[$last]} =~ \[([^]]+)\] ]]; then
 		module=${words[$last]}
 		module=${module#\[}
 		module=${module%\]}
+		modbuildid=${module#* }
+		module=${module% *}
+		if [[ $modbuildid == $module ]]; then
+			modbuildid=
+		fi
 		symbol=${words[$last-1]}
 		unset words[$last-1]
 	else
 		# The symbol is the last element, process it
 		symbol=${words[$last]}
 		module=
+		modbuildid=
 	fi
 
 	unset words[$last]
@@ -201,14 +265,6 @@ handle_line() {
 	echo "${words[@]}" "$symbol $module"
 }
 
-if [[ $basepath == "auto" ]] ; then
-	module=""
-	symbol="kernel_init+0x0/0x0"
-	parse_symbol
-	basepath=${symbol#kernel_init (}
-	basepath=${basepath%/init/main.c:*)}
-fi
-
 while read line; do
 	# Let's see if we have an address in the line
 	if [[ $line =~ \[\<([^]]+)\>\] ]] ||
@@ -218,6 +274,9 @@ while read line; do
 	# Is it a code line?
 	elif [[ $line == *Code:* ]]; then
 		decode_code "$line"
+	# Is it a version line?
+	elif [[ -n $debuginfod && $line =~ PID:\ [0-9]+\ Comm: ]]; then
+		debuginfod_get_vmlinux "$line"
 	else
 		# Nothing special in this line, show it as is
 		echo "$line"
diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check
index c71832b2312b..7187ea5e5149 100755
--- a/scripts/documentation-file-ref-check
+++ b/scripts/documentation-file-ref-check
@@ -24,7 +24,7 @@ my $help = 0;
 my $fix = 0;
 my $warn = 0;
 
-if (! -d ".git") {
+if (! -e ".git") {
 	printf "Warning: can't check if file exists, as this is not a git tree\n";
 	exit 0;
 }
diff --git a/scripts/gcc-plugins/gen-random-seed.sh b/scripts/gcc-plugins/gen-random-seed.sh
index 68af5cc20a64..68af5cc20a64 100644..100755
--- a/scripts/gcc-plugins/gen-random-seed.sh
+++ b/scripts/gcc-plugins/gen-random-seed.sh
diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh
index da320151e7c3..6ed0d225c8b1 100755
--- a/scripts/gen_autoksyms.sh
+++ b/scripts/gen_autoksyms.sh
@@ -26,18 +26,6 @@ if [ -n "$CONFIG_MODVERSIONS" ]; then
 	needed_symbols="$needed_symbols module_layout"
 fi
 
-# With CONFIG_LTO_CLANG, LLVM bitcode has not yet been compiled into a binary
-# when the .mod files are generated, which means they don't yet contain
-# references to certain symbols that will be present in the final binaries.
-if [ -n "$CONFIG_LTO_CLANG" ]; then
-	# intrinsic functions
-	needed_symbols="$needed_symbols memcpy memmove memset"
-	# ftrace
-	needed_symbols="$needed_symbols _mcount"
-	# stack protector symbols
-	needed_symbols="$needed_symbols __stack_chk_fail __stack_chk_guard"
-fi
-
 ksym_wl=
 if [ -n "$CONFIG_UNUSED_KSYMS_WHITELIST" ]; then
 	# Use 'eval' to expand the whitelist path and check if it is relative
diff --git a/scripts/gen_ksymdeps.sh b/scripts/gen_ksymdeps.sh
index 1324986e1362..8ee533f33659 100755
--- a/scripts/gen_ksymdeps.sh
+++ b/scripts/gen_ksymdeps.sh
@@ -4,7 +4,13 @@
 set -e
 
 # List of exported symbols
-ksyms=$($NM $1 | sed -n 's/.*__ksym_marker_\(.*\)/\1/p' | tr A-Z a-z)
+#
+# If the object has no symbol, $NM warns 'no symbols'.
+# Suppress the stderr.
+# TODO:
+#   Use -q instead of 2>/dev/null when we upgrade the minimum version of
+#   binutils to 2.37, llvm to 13.0.0.
+ksyms=$($NM $1 2>/dev/null | sed -n 's/.*__ksym_marker_\(.*\)/\1/p')
 
 if [ -z "$ksyms" ]; then
 	exit 0
@@ -15,8 +21,7 @@ echo "ksymdeps_$1 := \\"
 
 for s in $ksyms
 do
-	echo $s | sed -e 's:^_*:    $(wildcard include/ksym/:' \
-			-e 's:__*:/:g' -e 's/$/.h) \\/'
+	printf '    $(wildcard include/ksym/%s) \\\n' "$s"
 done
 
 echo
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index bfa1ea8f5f98..5d84b44a2a2a 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -678,7 +678,7 @@ static void check_conf(struct menu *menu)
 		check_conf(child);
 }
 
-static struct option long_opts[] = {
+static const struct option long_opts[] = {
 	{"help",          no_argument,       NULL,            'h'},
 	{"silent",        no_argument,       NULL,            's'},
 	{"oldaskconfig",  no_argument,       &input_mode_opt, oldaskconfig},
diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 63c8565206a4..e5b46980c22a 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -28,6 +28,7 @@ usage() {
 	echo "  -r    list redundant entries when merging fragments"
 	echo "  -y    make builtin have precedence over modules"
 	echo "  -O    dir to put generated output files.  Consider setting \$KCONFIG_CONFIG instead."
+	echo "  -s    strict mode. Fail if the fragment redefines any value."
 	echo
 	echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable."
 }
@@ -37,6 +38,7 @@ ALLTARGET=alldefconfig
 WARNREDUN=false
 BUILTIN=false
 OUTPUT=.
+STRICT=false
 CONFIG_PREFIX=${CONFIG_-CONFIG_}
 
 while true; do
@@ -75,6 +77,11 @@ while true; do
 		shift 2
 		continue
 		;;
+	"-s")
+		STRICT=true
+		shift
+		continue
+		;;
 	*)
 		break
 		;;
@@ -141,6 +148,9 @@ for ORIG_MERGE_FILE in $MERGE_LIST ; do
 			echo Previous  value: $PREV_VAL
 			echo New value:       $NEW_VAL
 			echo
+			if [ "$STRICT" = "true" ]; then
+				STRICT_MODE_VIOLATED=true
+			fi
 		elif [ "$WARNREDUN" = "true" ]; then
 			echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE:
 		fi
@@ -153,6 +163,11 @@ for ORIG_MERGE_FILE in $MERGE_LIST ; do
 	cat $MERGE_FILE >> $TMP_FILE
 done
 
+if [ "$STRICT_MODE_VIOLATED" = "true" ]; then
+	echo "The fragment redefined a value and strict mode had been passed."
+	exit 1
+fi
+
 if [ "$RUNMAKE" = "false" ]; then
 	cp -T -- "$TMP_FILE" "$KCONFIG_CONFIG"
 	echo "#"
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 911c72a2dbc4..1a5fea0519eb 100755
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -601,12 +601,12 @@ if (defined($ENV{'LMC_KEEP'})) {
 sub in_preserved_kconfigs {
     my $kconfig = $config2kfile{$_[0]};
     if (!defined($kconfig)) {
-        return 0;
+	return 0;
     }
     foreach my $excl (@preserved_kconfigs) {
-        if($kconfig =~ /^$excl/) {
-            return 1;
-        }
+	if($kconfig =~ /^$excl/) {
+	    return 1;
+	}
     }
     return 0;
 }
@@ -629,52 +629,52 @@ foreach my $line (@config_file) {
     }
 
     if (/CONFIG_MODULE_SIG_KEY="(.+)"/) {
-        my $orig_cert = $1;
-        my $default_cert = "certs/signing_key.pem";
+	my $orig_cert = $1;
+	my $default_cert = "certs/signing_key.pem";
 
-        # Check that the logic in this script still matches the one in Kconfig
-        if (!defined($depends{"MODULE_SIG_KEY"}) ||
-            $depends{"MODULE_SIG_KEY"} !~ /"\Q$default_cert\E"/) {
-            print STDERR "WARNING: MODULE_SIG_KEY assertion failure, ",
-                "update needed to ", __FILE__, " line ", __LINE__, "\n";
-            print;
-        } elsif ($orig_cert ne $default_cert && ! -f $orig_cert) {
-            print STDERR "Module signature verification enabled but ",
-                "module signing key \"$orig_cert\" not found. Resetting ",
-                "signing key to default value.\n";
-            print "CONFIG_MODULE_SIG_KEY=\"$default_cert\"\n";
-        } else {
-            print;
-        }
-        next;
+	# Check that the logic in this script still matches the one in Kconfig
+	if (!defined($depends{"MODULE_SIG_KEY"}) ||
+	    $depends{"MODULE_SIG_KEY"} !~ /"\Q$default_cert\E"/) {
+	    print STDERR "WARNING: MODULE_SIG_KEY assertion failure, ",
+		"update needed to ", __FILE__, " line ", __LINE__, "\n";
+	    print;
+	} elsif ($orig_cert ne $default_cert && ! -f $orig_cert) {
+	    print STDERR "Module signature verification enabled but ",
+		"module signing key \"$orig_cert\" not found. Resetting ",
+		"signing key to default value.\n";
+	    print "CONFIG_MODULE_SIG_KEY=\"$default_cert\"\n";
+	} else {
+	    print;
+	}
+	next;
     }
 
     if (/CONFIG_SYSTEM_TRUSTED_KEYS="(.+)"/) {
-        my $orig_keys = $1;
+	my $orig_keys = $1;
 
-        if (! -f $orig_keys) {
-            print STDERR "System keyring enabled but keys \"$orig_keys\" ",
-                "not found. Resetting keys to default value.\n";
-            print "CONFIG_SYSTEM_TRUSTED_KEYS=\"\"\n";
-        } else {
-            print;
-        }
-        next;
+	if (! -f $orig_keys) {
+	    print STDERR "System keyring enabled but keys \"$orig_keys\" ",
+		"not found. Resetting keys to default value.\n";
+	    print "CONFIG_SYSTEM_TRUSTED_KEYS=\"\"\n";
+	} else {
+	    print;
+	}
+	next;
     }
 
     if (/^(CONFIG.*)=(m|y)/) {
-        if (in_preserved_kconfigs($1)) {
-            dprint "Preserve config $1";
-            print;
-            next;
-        }
+	if (in_preserved_kconfigs($1)) {
+	    dprint "Preserve config $1";
+	    print;
+	    next;
+	}
 	if (defined($configs{$1})) {
 	    if ($localyesconfig) {
-	        $setconfigs{$1} = 'y';
+		$setconfigs{$1} = 'y';
 		print "$1=y\n";
 		next;
 	    } else {
-	        $setconfigs{$1} = $2;
+		$setconfigs{$1} = $2;
 	    }
 	} elsif ($2 eq "m") {
 	    print "# $1 is not set\n";
@@ -702,3 +702,5 @@ foreach my $module (keys(%modules)) {
 	print STDERR "\n";
     }
 }
+
+# vim: softtabstop=4
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 4840e748fca8..cfcb60737957 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -329,10 +329,6 @@ if (defined($ENV{'KBUILD_VERBOSE'})) {
 	$verbose = "$ENV{'KBUILD_VERBOSE'}";
 }
 
-if (defined($ENV{'KDOC_WERROR'})) {
-	$Werror = "$ENV{'KDOC_WERROR'}";
-}
-
 if (defined($ENV{'KCFLAGS'})) {
 	my $kcflags = "$ENV{'KCFLAGS'}";
 
@@ -341,6 +337,10 @@ if (defined($ENV{'KCFLAGS'})) {
 	}
 }
 
+if (defined($ENV{'KDOC_WERROR'})) {
+	$Werror = "$ENV{'KDOC_WERROR'}";
+}
+
 # Generated docbook code is inserted in a template at a point where
 # docbook v3.1 requires a non-zero sequence of RefEntry's; see:
 # https://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
@@ -406,6 +406,8 @@ my $doc_inline_sect = '\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)';
 my $doc_inline_end = '^\s*\*/\s*$';
 my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
 my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
+my $function_pointer = qr{([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)};
+my $attribute = qr{__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)}i;
 
 my %parameterdescs;
 my %parameterdesc_start_lines;
@@ -694,7 +696,7 @@ sub output_function_man(%) {
 	    $post = ");";
 	}
 	$type = $args{'parametertypes'}{$parameter};
-	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	if ($type =~ m/$function_pointer/) {
 	    # pointer-to-function
 	    print ".BI \"" . $parenth . $1 . "\" " . " \") (" . $2 . ")" . $post . "\"\n";
 	} else {
@@ -974,7 +976,7 @@ sub output_function_rst(%) {
 	$count++;
 	$type = $args{'parametertypes'}{$parameter};
 
-	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+	if ($type =~ m/$function_pointer/) {
 	    # pointer-to-function
 	    print $1 . $parameter . ") (" . $2 . ")";
 	} else {
@@ -1211,7 +1213,9 @@ sub dump_struct($$) {
     my $members;
     my $type = qr{struct|union};
     # For capturing struct/union definition body, i.e. "{members*}qualifiers*"
-    my $definition_body = qr{\{(.*)\}(?:\s*(?:__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*};
+    my $qualifiers = qr{$attribute|__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned};
+    my $definition_body = qr{\{(.*)\}\s*$qualifiers*};
+    my $struct_members = qr{($type)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;};
 
     if ($x =~ /($type)\s+(\w+)\s*$definition_body/) {
 	$decl_type = $1;
@@ -1235,27 +1239,27 @@ sub dump_struct($$) {
 	# strip comments:
 	$members =~ s/\/\*.*?\*\///gos;
 	# strip attributes
-	$members =~ s/\s*__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)/ /gi;
+	$members =~ s/\s*$attribute/ /gi;
 	$members =~ s/\s*__aligned\s*\([^;]*\)/ /gos;
 	$members =~ s/\s*__packed\s*/ /gos;
 	$members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
 	$members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
 	$members =~ s/\s*____cacheline_aligned/ /gos;
 
+	my $args = qr{([^,)]+)};
 	# replace DECLARE_BITMAP
 	$members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;
-	$members =~ s/DECLARE_BITMAP\s*\(([^,)]+),\s*([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
+	$members =~ s/DECLARE_BITMAP\s*\($args,\s*$args\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
 	# replace DECLARE_HASHTABLE
-	$members =~ s/DECLARE_HASHTABLE\s*\(([^,)]+),\s*([^,)]+)\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
+	$members =~ s/DECLARE_HASHTABLE\s*\($args,\s*$args\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
 	# replace DECLARE_KFIFO
-	$members =~ s/DECLARE_KFIFO\s*\(([^,)]+),\s*([^,)]+),\s*([^,)]+)\)/$2 \*$1/gos;
+	$members =~ s/DECLARE_KFIFO\s*\($args,\s*$args,\s*$args\)/$2 \*$1/gos;
 	# replace DECLARE_KFIFO_PTR
-	$members =~ s/DECLARE_KFIFO_PTR\s*\(([^,)]+),\s*([^,)]+)\)/$2 \*$1/gos;
-
+	$members =~ s/DECLARE_KFIFO_PTR\s*\($args,\s*$args\)/$2 \*$1/gos;
 	my $declaration = $members;
 
 	# Split nested struct/union elements as newer ones
-	while ($members =~ m/(struct|union)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;/) {
+	while ($members =~ m/$struct_members/) {
 		my $newmember;
 		my $maintype = $1;
 		my $ids = $4;
@@ -1315,7 +1319,7 @@ sub dump_struct($$) {
 				}
 			}
 		}
-		$members =~ s/(struct|union)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;/$newmember/;
+		$members =~ s/$struct_members/$newmember/;
 	}
 
 	# Ignore other nested elements, like enums
@@ -1555,8 +1559,9 @@ sub create_parameterlist($$$$) {
     my $param;
 
     # temporarily replace commas inside function pointer definition
-    while ($args =~ /(\([^\),]+),/) {
-	$args =~ s/(\([^\),]+),/$1#/g;
+    my $arg_expr = qr{\([^\),]+};
+    while ($args =~ /$arg_expr,/) {
+	$args =~ s/($arg_expr),/$1#/g;
     }
 
     foreach my $arg (split($splitter, $args)) {
@@ -1707,7 +1712,7 @@ sub check_sections($$$$$) {
 		foreach $px (0 .. $#prms) {
 			$prm_clean = $prms[$px];
 			$prm_clean =~ s/\[.*\]//;
-			$prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
+			$prm_clean =~ s/$attribute//i;
 			# ignore array size in a parameter string;
 			# however, the original param string may contain
 			# spaces, e.g.:  addr[6 + 2]
@@ -1809,8 +1814,14 @@ sub dump_function($$) {
     # - parport_register_device (function pointer parameters)
     # - atomic_set (macro)
     # - pci_match_device, __copy_to_user (long return type)
+    my $name = qr{[a-zA-Z0-9_~:]+};
+    my $prototype_end1 = qr{[^\(]*};
+    my $prototype_end2 = qr{[^\{]*};
+    my $prototype_end = qr{\(($prototype_end1|$prototype_end2)\)};
+    my $type1 = qr{[\w\s]+};
+    my $type2 = qr{$type1\*+};
 
-    if ($define && $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s+/) {
+    if ($define && $prototype =~ m/^()($name)\s+/) {
         # This is an object-like macro, it has no return type and no parameter
         # list.
         # Function-like macros are not allowed to have spaces between
@@ -1818,23 +1829,9 @@ sub dump_function($$) {
         $return_type = $1;
         $declaration_name = $2;
         $noret = 1;
-    } elsif ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^(\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
-	$prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
-	$prototype =~ m/^(\w+\s+\w+\s*\*+\s*\w+\s*\*+\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
+    } elsif ($prototype =~ m/^()($name)\s*$prototype_end/ ||
+	$prototype =~ m/^($type1)\s+($name)\s*$prototype_end/ ||
+	$prototype =~ m/^($type2+)\s*($name)\s*$prototype_end/)  {
 	$return_type = $1;
 	$declaration_name = $2;
 	my $args = $3;
@@ -2111,12 +2108,12 @@ sub process_name($$) {
     } elsif (/$doc_decl/o) {
 	$identifier = $1;
 	my $is_kernel_comment = 0;
-	my $decl_start = qr{\s*\*};
+	my $decl_start = qr{$doc_com};
 	# test for pointer declaration type, foo * bar() - desc
 	my $fn_type = qr{\w+\s*\*\s*}; 
 	my $parenthesis = qr{\(\w*\)};
 	my $decl_end = qr{[-:].*};
-	if (/^$decl_start\s*([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
+	if (/^$decl_start([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
 	    $identifier = $1;
 	}
 	if ($identifier =~ m/^(struct|union|enum|typedef)\b\s*(\S*)/) {
@@ -2126,8 +2123,8 @@ sub process_name($$) {
 	}
 	# Look for foo() or static void foo() - description; or misspelt
 	# identifier
-	elsif (/^$decl_start\s*$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
-	    /^$decl_start\s*$fn_type?(\w+.*)$parenthesis?\s*$decl_end$/) {
+	elsif (/^$decl_start$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
+	    /^$decl_start$fn_type?(\w+.*)$parenthesis?\s*$decl_end$/) {
 	    $identifier = $1;
 	    $decl_type = 'function';
 	    $identifier =~ s/^define\s+//;
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 0e0f6466b18d..d74cee5c4326 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -38,9 +38,7 @@ LDFLAGS_vmlinux="$3"
 # Will be supressed by "make -s"
 info()
 {
-	if [ "${quiet}" != "silent_" ]; then
-		printf "  %-7s %s\n" "${1}" "${2}"
-	fi
+	printf "  %-7s %s\n" "${1}" "${2}"
 }
 
 # Generate a linker script to ensure correct ordering of initcalls.
@@ -151,67 +149,54 @@ objtool_link()
 # ${2}, ${3}, ... - optional extra .o files
 vmlinux_link()
 {
-	local lds="${objtree}/${KBUILD_LDS}"
 	local output=${1}
-	local objects
-	local strip_debug
-	local map_option
+	local objs
+	local libs
+	local ld
+	local ldflags
+	local ldlibs
 
 	info LD ${output}
 
 	# skip output file argument
 	shift
 
-	# The kallsyms linking does not need debug symbols included.
-	if [ "$output" != "${output#.tmp_vmlinux.kallsyms}" ] ; then
-		strip_debug=-Wl,--strip-debug
+	if [ -n "${CONFIG_LTO_CLANG}" ]; then
+		# Use vmlinux.o instead of performing the slow LTO link again.
+		objs=vmlinux.o
+		libs=
+	else
+		objs="${KBUILD_VMLINUX_OBJS}"
+		libs="${KBUILD_VMLINUX_LIBS}"
 	fi
 
-	if [ -n "${CONFIG_VMLINUX_MAP}" ]; then
-		map_option="-Map=${output}.map"
+	if [ "${SRCARCH}" = "um" ]; then
+		wl=-Wl,
+		ld="${CC}"
+		ldflags="${CFLAGS_vmlinux}"
+		ldlibs="-lutil -lrt -lpthread"
+	else
+		wl=
+		ld="${LD}"
+		ldflags="${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux}"
+		ldlibs=
 	fi
 
-	if [ "${SRCARCH}" != "um" ]; then
-		if [ -n "${CONFIG_LTO_CLANG}" ]; then
-			# Use vmlinux.o instead of performing the slow LTO
-			# link again.
-			objects="--whole-archive		\
-				vmlinux.o 			\
-				--no-whole-archive		\
-				${@}"
-		else
-			objects="--whole-archive		\
-				${KBUILD_VMLINUX_OBJS}		\
-				--no-whole-archive		\
-				--start-group			\
-				${KBUILD_VMLINUX_LIBS}		\
-				--end-group			\
-				${@}"
-		fi
+	ldflags="${ldflags} ${wl}--script=${objtree}/${KBUILD_LDS}"
 
-		${LD} ${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux}	\
-			${strip_debug#-Wl,}			\
-			-o ${output}				\
-			${map_option}				\
-			-T ${lds} ${objects}
-	else
-		objects="-Wl,--whole-archive			\
-			${KBUILD_VMLINUX_OBJS}			\
-			-Wl,--no-whole-archive			\
-			-Wl,--start-group			\
-			${KBUILD_VMLINUX_LIBS}			\
-			-Wl,--end-group				\
-			${@}"
+	# The kallsyms linking does not need debug symbols included.
+	if [ "$output" != "${output#.tmp_vmlinux.kallsyms}" ] ; then
+		ldflags="${ldflags} ${wl}--strip-debug"
+	fi
 
-		${CC} ${CFLAGS_vmlinux}				\
-			${strip_debug}				\
-			-o ${output}				\
-			${map_option:+-Wl,${map_option}}	\
-			-Wl,-T,${lds}				\
-			${objects}				\
-			-lutil -lrt -lpthread
-		rm -f linux
+	if [ -n "${CONFIG_VMLINUX_MAP}" ]; then
+		ldflags="${ldflags} ${wl}-Map=${output}.map"
 	fi
+
+	${ld} ${ldflags} -o ${output}					\
+		${wl}--whole-archive ${objs} ${wl}--no-whole-archive	\
+		${wl}--start-group ${libs} ${wl}--end-group		\
+		$@ ${ldlibs}
 }
 
 # generate .BTF typeinfo from DWARF debuginfo
@@ -235,6 +220,10 @@ gen_btf()
 
 	vmlinux_link ${1}
 
+	if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
+		# pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
+		extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
+	fi
 	if [ "${pahole_ver}" -ge "121" ]; then
 		extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
 	fi
diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh
index d22cf91212b0..4edc708baa63 100755
--- a/scripts/min-tool-version.sh
+++ b/scripts/min-tool-version.sh
@@ -17,20 +17,19 @@ binutils)
 	echo 2.23.0
 	;;
 gcc)
-	# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
-	# https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
-	if [ "$SRCARCH" = arm64 ]; then
-		echo 5.1.0
-	else
-		echo 4.9.0
-	fi
+	echo 5.1.0
 	;;
 icc)
 	# temporary
 	echo 16.0.3
 	;;
 llvm)
-	echo 10.0.1
+	# https://lore.kernel.org/r/YMtib5hKVyNknZt3@osiris/
+	if [ "$SRCARCH" = s390 ]; then
+		echo 13.0.0
+	else
+		echo 10.0.1
+	fi
 	;;
 *)
 	echo "$1: unknown tool" >&2
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index 4ae735039daf..6a2a04d92f42 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -9,8 +9,6 @@ PREEMPT_RT=$5
 CC_VERSION="$6"
 LD=$7
 
-vecho() { [ "${quiet}" = "silent_" ] || echo "$@" ; }
-
 # Do not expand names
 set -f
 
@@ -70,19 +68,27 @@ UTS_VERSION="$(echo $UTS_VERSION $CONFIG_FLAGS $TIMESTAMP | cut -b -$UTS_LEN)"
 # Only replace the real compile.h if the new one is different,
 # in order to preserve the timestamp and avoid unnecessary
 # recompilations.
-# We don't consider the file changed if only the date/time changed.
+# We don't consider the file changed if only the date/time changed,
+# unless KBUILD_BUILD_TIMESTAMP was explicitly set (e.g. for
+# reproducible builds with that value referring to a commit timestamp).
 # A kernel config change will increase the generation number, thus
 # causing compile.h to be updated (including date/time) due to the
 # changed comment in the
 # first line.
 
+if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
+   IGNORE_PATTERN="UTS_VERSION"
+else
+   IGNORE_PATTERN="NOT_A_PATTERN_TO_BE_MATCHED"
+fi
+
 if [ -r $TARGET ] && \
-      grep -v 'UTS_VERSION' $TARGET > .tmpver.1 && \
-      grep -v 'UTS_VERSION' .tmpcompile > .tmpver.2 && \
+      grep -v $IGNORE_PATTERN $TARGET > .tmpver.1 && \
+      grep -v $IGNORE_PATTERN .tmpcompile > .tmpver.2 && \
       cmp -s .tmpver.1 .tmpver.2; then
    rm -f .tmpcompile
 else
-   vecho "  UPD     $TARGET"
+   echo "  UPD     $TARGET"
    mv -f .tmpcompile $TARGET
 fi
 rm -f .tmpver.1 .tmpver.2
diff --git a/scripts/mkmakefile b/scripts/mkmakefile
deleted file mode 100755
index 1cb174751429..000000000000
--- a/scripts/mkmakefile
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-# Generates a small Makefile used in the root of the output
-# directory, to allow make to be started from there.
-# The Makefile also allow for more convinient build of external modules
-
-# Usage
-# $1 - Kernel src directory
-
-if [ "${quiet}" != "silent_" ]; then
-	echo "  GEN     Makefile"
-fi
-
-cat << EOF > Makefile
-# Automatically generated by $0: don't edit
-include $1/Makefile
-EOF
diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index 9bb6c7edccc4..cc3625617a0e 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -42,6 +42,7 @@ int main(void)
 	DEVID_FIELD(pci_device_id, subdevice);
 	DEVID_FIELD(pci_device_id, class);
 	DEVID_FIELD(pci_device_id, class_mask);
+	DEVID_FIELD(pci_device_id, override_only);
 
 	DEVID(ccw_device_id);
 	DEVID_FIELD(ccw_device_id, match_flags);
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 7c97fa8e36bc..49aba862073e 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -426,7 +426,7 @@ static int do_ieee1394_entry(const char *filename,
 	return 1;
 }
 
-/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
+/* Looks like: pci:vNdNsvNsdNbcNscNiN or <prefix>_pci:vNdNsvNsdNbcNscNiN. */
 static int do_pci_entry(const char *filename,
 			void *symval, char *alias)
 {
@@ -440,8 +440,21 @@ static int do_pci_entry(const char *filename,
 	DEF_FIELD(symval, pci_device_id, subdevice);
 	DEF_FIELD(symval, pci_device_id, class);
 	DEF_FIELD(symval, pci_device_id, class_mask);
+	DEF_FIELD(symval, pci_device_id, override_only);
+
+	switch (override_only) {
+	case 0:
+		strcpy(alias, "pci:");
+		break;
+	case PCI_ID_F_VFIO_DRIVER_OVERRIDE:
+		strcpy(alias, "vfio_pci:");
+		break;
+	default:
+		warn("Unknown PCI driver_override alias %08X\n",
+		     override_only);
+		return 0;
+	}
 
-	strcpy(alias, "pci:");
 	ADD(alias, "v", vendor != PCI_ANY_ID, vendor);
 	ADD(alias, "d", device != PCI_ANY_ID, device);
 	ADD(alias, "sv", subvendor != PCI_ANY_ID, subvendor);
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 3e623ccc020b..cb8ab7d91d30 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -17,6 +17,7 @@
 #include <ctype.h>
 #include <string.h>
 #include <limits.h>
+#include <stdbool.h>
 #include <errno.h>
 #include "modpost.h"
 #include "../../include/linux/license.h"
@@ -89,6 +90,14 @@ modpost_log(enum loglevel loglevel, const char *fmt, ...)
 		error_occurred = true;
 }
 
+static inline bool strends(const char *str, const char *postfix)
+{
+	if (strlen(str) < strlen(postfix))
+		return false;
+
+	return strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
+}
+
 void *do_nofail(void *ptr, const char *expr)
 {
 	if (!ptr)
@@ -660,8 +669,11 @@ static void handle_modversion(const struct module *mod,
 	unsigned int crc;
 
 	if (sym->st_shndx == SHN_UNDEF) {
-		warn("EXPORT symbol \"%s\" [%s%s] version generation failed, symbol will not be versioned.\n",
-		     symname, mod->name, mod->is_vmlinux ? "" : ".ko");
+		warn("EXPORT symbol \"%s\" [%s%s] version ...\n"
+		     "Is \"%s\" prototyped in <asm/asm-prototypes.h>?\n",
+		     symname, mod->name, mod->is_vmlinux ? "" : ".ko",
+		     symname);
+
 		return;
 	}
 
@@ -928,7 +940,7 @@ static void check_section(const char *modname, struct elf_info *elf,
 		".kprobes.text", ".cpuidle.text", ".noinstr.text"
 #define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \
 		".fixup", ".entry.text", ".exception.text", ".text.*", \
-		".coldtext"
+		".coldtext", ".softirqentry.text"
 
 #define INIT_SECTIONS      ".init.*"
 #define MEM_INIT_SECTIONS  ".meminit.*"
@@ -2057,7 +2069,7 @@ static void read_symbols(const char *modname)
 	if (!mod->is_vmlinux) {
 		version = get_modinfo(&info, "version");
 		if (version || all_versions)
-			get_src_version(modname, mod->srcversion,
+			get_src_version(mod->name, mod->srcversion,
 					sizeof(mod->srcversion) - 1);
 	}
 
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index c1a895c0d682..0c47ff95c0e2 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -2,7 +2,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
-#include <stdbool.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -178,14 +177,6 @@ static inline unsigned int get_secindex(const struct elf_info *info,
 	return info->symtab_shndx_start[sym - info->symtab_start];
 }
 
-static inline bool strends(const char *str, const char *postfix)
-{
-	if (strlen(str) < strlen(postfix))
-		return false;
-
-	return strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
-}
-
 /* file2alias.c */
 extern unsigned int cross_build;
 void handle_moddevtable(struct module *mod, struct elf_info *info,
diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index 760e6baa7eda..905c0ec291e1 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -391,14 +391,9 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen)
 	struct md4_ctx md;
 	char *fname;
 	char filelist[PATH_MAX + 1];
-	int postfix_len = 1;
-
-	if (strends(modname, ".lto.o"))
-		postfix_len = 5;
 
 	/* objects for a module are listed in the first line of *.mod file. */
-	snprintf(filelist, sizeof(filelist), "%.*smod",
-		 (int)strlen(modname) - postfix_len, modname);
+	snprintf(filelist, sizeof(filelist), "%s.mod", modname);
 
 	buf = read_text_file(filelist);
 
diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index 04c5685c25cf..1d0e1e4dc3d2 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -24,6 +24,7 @@ SECTIONS {
 	__kcrctab		0 : { *(SORT(___kcrctab+*)) }
 	__kcrctab_gpl		0 : { *(SORT(___kcrctab_gpl+*)) }
 
+	.ctors			0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) }
 	.init_array		0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
 
 	__jump_table		0 : ALIGN(8) { KEEP(*(__jump_table)) }
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index c17e48020ec3..7d631aaa0ae1 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -173,39 +173,6 @@ my $mcount_regex;	# Find the call site to mcount (return offset)
 my $mcount_adjust;	# Address adjustment to mcount offset
 my $alignment;		# The .align value to use for $mcount_section
 my $section_type;	# Section header plus possible alignment command
-my $can_use_local = 0; 	# If we can use local function references
-
-# Shut up recordmcount if user has older objcopy
-my $quiet_recordmcount = ".tmp_quiet_recordmcount";
-my $print_warning = 1;
-$print_warning = 0 if ( -f $quiet_recordmcount);
-
-##
-# check_objcopy - whether objcopy supports --globalize-symbols
-#
-#  --globalize-symbols came out in 2.17, we must test the version
-#  of objcopy, and if it is less than 2.17, then we can not
-#  record local functions.
-sub check_objcopy
-{
-    open (IN, "$objcopy --version |") or die "error running $objcopy";
-    while (<IN>) {
-	if (/objcopy.*\s(\d+)\.(\d+)/) {
-	    $can_use_local = 1 if ($1 > 2 || ($1 == 2 && $2 >= 17));
-	    last;
-	}
-    }
-    close (IN);
-
-    if (!$can_use_local && $print_warning) {
-	print STDERR "WARNING: could not find objcopy version or version " .
-	    "is less than 2.17.\n" .
-	    "\tLocal function references are disabled.\n";
-	open (QUIET, ">$quiet_recordmcount");
-	printf QUIET "Disables the warning from recordmcount.pl\n";
-	close QUIET;
-    }
-}
 
 if ($arch =~ /(x86(_64)?)|(i386)/) {
     if ($bits == 64) {
@@ -222,7 +189,7 @@ if ($arch =~ /(x86(_64)?)|(i386)/) {
 $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
 $weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
 $section_regex = "Disassembly of section\\s+(\\S+):";
-$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
+$function_regex = "^([0-9a-fA-F]+)\\s+<([^^]*?)>:";
 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s(mcount|__fentry__)\$";
 $section_type = '@progbits';
 $mcount_adjust = 0;
@@ -434,8 +401,6 @@ if ($filename =~ m,^(.*)(\.\S),) {
 my $mcount_s = $dirname . "/.tmp_mc_" . $prefix . ".s";
 my $mcount_o = $dirname . "/.tmp_mc_" . $prefix . ".o";
 
-check_objcopy();
-
 #
 # Step 1: find all the local (static functions) and weak symbols.
 #         't' is local, 'w/W' is weak
@@ -473,11 +438,6 @@ sub update_funcs
 
     # is this function static? If so, note this fact.
     if (defined $locals{$ref_func}) {
-
-	# only use locals if objcopy supports globalize-symbols
-	if (!$can_use_local) {
-	    return;
-	}
 	$convert{$ref_func} = 1;
     }
 
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index db941f6d9591..6b54e46a0f12 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -59,32 +59,19 @@ scm_version()
 			fi
 			# If we are past a tagged commit (like
 			# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
-			#
-			# Ensure the abbreviated sha1 has exactly 12
-			# hex characters, to make the output
-			# independent of git version, local
-			# core.abbrev settings and/or total number of
-			# objects in the current repository - passing
-			# --abbrev=12 ensures a minimum of 12, and the
-			# awk substr() then picks the 'g' and first 12
-			# hex chars.
-			if atag="$(git describe --abbrev=12 2>/dev/null)"; then
-				echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),substr($(NF),0,13))}'
-
-			# If we don't have a tag at all we print -g{commitish},
-			# again using exactly 12 hex chars.
-			else
-				head="$(echo $head | cut -c1-12)"
-				printf '%s%s' -g $head
+			if atag="$(git describe 2>/dev/null)"; then
+				echo "$atag" | awk -F- '{printf("-%05d", $(NF-1))}'
 			fi
-		fi
 
-		# Is this git on svn?
-		if git config --get svn-remote.svn.url >/dev/null; then
-			printf -- '-svn%s' "$(git svn find-rev $head)"
+			# Add -g and exactly 12 hex chars.
+			printf '%s%s' -g "$(echo $head | cut -c1-12)"
 		fi
 
 		# Check for uncommitted changes.
+		# This script must avoid any write attempt to the source tree,
+		# which might be read-only.
+		# You cannot use 'git describe --dirty' because it tries to
+		# create .git/index.lock .
 		# First, with git-status, but --no-optional-locks is only
 		# supported in git >= 2.14, so fall back to git-diff-index if
 		# it fails. Note that git-diff-index does not refresh the
@@ -93,45 +80,9 @@ scm_version()
 		if {
 			git --no-optional-locks status -uno --porcelain 2>/dev/null ||
 			git diff-index --name-only HEAD
-		} | grep -qvE '^(.. )?scripts/package'; then
+		} | read dummy; then
 			printf '%s' -dirty
 		fi
-
-		# All done with git
-		return
-	fi
-
-	# Check for mercurial and a mercurial repo.
-	if test -d .hg && hgid=$(hg id 2>/dev/null); then
-		# Do we have an tagged version?  If so, latesttagdistance == 1
-		if [ "$(hg log -r . --template '{latesttagdistance}')" = "1" ]; then
-			id=$(hg log -r . --template '{latesttag}')
-			printf '%s%s' -hg "$id"
-		else
-			tag=$(printf '%s' "$hgid" | cut -d' ' -f2)
-			if [ -z "$tag" -o "$tag" = tip ]; then
-				id=$(printf '%s' "$hgid" | sed 's/[+ ].*//')
-				printf '%s%s' -hg "$id"
-			fi
-		fi
-
-		# Are there uncommitted changes?
-		# These are represented by + after the changeset id.
-		case "$hgid" in
-			*+|*+\ *) printf '%s' -dirty ;;
-		esac
-
-		# All done with mercurial
-		return
-	fi
-
-	# Check for svn and a svn repo.
-	if rev=$(LC_ALL=C svn info 2>/dev/null | grep '^Last Changed Rev'); then
-		rev=$(echo $rev | awk '{print $NF}')
-		printf -- '-svn%s' "$rev"
-
-		# All done with svn
-		return
 	fi
 }
 
@@ -180,15 +131,16 @@ res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
 	# full scm version string
 	res="$res$(scm_version)"
-else
-	# append a plus sign if the repository is not in a clean
-	# annotated or signed tagged state (as git describe only
-	# looks at signed or annotated tags - git tag -a/-s) and
-	# LOCALVERSION= is not specified
-	if test "${LOCALVERSION+set}" != "set"; then
-		scm=$(scm_version --short)
-		res="$res${scm:++}"
-	fi
+elif [ "${LOCALVERSION+set}" != "set" ]; then
+	# If the variable LOCALVERSION is not set, append a plus
+	# sign if the repository is not in a clean annotated or
+	# signed tagged state (as git describe only looks at signed
+	# or annotated tags - git tag -a/-s).
+	#
+	# If the variable LOCALVERSION is set (including being set
+	# to an empty string), we don't want to append a plus sign.
+	scm=$(scm_version --short)
+	res="$res${scm:++}"
 fi
 
 echo "$res"
diff --git a/scripts/sorttable.c b/scripts/sorttable.c
index 0ef3abfc4a51..6ee4fa882919 100644
--- a/scripts/sorttable.c
+++ b/scripts/sorttable.c
@@ -54,6 +54,10 @@
 #define EM_ARCV2	195
 #endif
 
+#ifndef EM_RISCV
+#define EM_RISCV	243
+#endif
+
 static uint32_t (*r)(const uint32_t *);
 static uint16_t (*r2)(const uint16_t *);
 static uint64_t (*r8)(const uint64_t *);
@@ -349,6 +353,7 @@ static int do_file(char const *const fname, void *addr)
 	case EM_ARM:
 	case EM_MICROBLAZE:
 	case EM_MIPS:
+	case EM_RISCV:
 	case EM_XTENSA:
 		break;
 	default:
diff --git a/scripts/spdxcheck-test.sh b/scripts/spdxcheck-test.sh
index cfea6a0d1cc0..cb76324756bd 100644
--- a/scripts/spdxcheck-test.sh
+++ b/scripts/spdxcheck-test.sh
@@ -1,12 +1,10 @@
 #!/bin/sh
 
-for PYTHON in python2 python3; do
-	# run check on a text and a binary file
-	for FILE in Makefile Documentation/logo.gif; do
-		$PYTHON scripts/spdxcheck.py $FILE
-		$PYTHON scripts/spdxcheck.py - < $FILE
-	done
-
-	# run check on complete tree to catch any other issues
-	$PYTHON scripts/spdxcheck.py > /dev/null
+# run check on a text and a binary file
+for FILE in Makefile Documentation/logo.gif; do
+	python3 scripts/spdxcheck.py $FILE
+	python3 scripts/spdxcheck.py - < $FILE
 done
+
+# run check on complete tree to catch any other issues
+python3 scripts/spdxcheck.py > /dev/null
diff --git a/scripts/spdxcheck.py b/scripts/spdxcheck.py
index 3e784cf9f401..ebd06ae642c9 100755
--- a/scripts/spdxcheck.py
+++ b/scripts/spdxcheck.py
@@ -44,7 +44,7 @@ def read_spdxdata(repo):
                 continue
 
             exception = None
-            for l in open(el.path).readlines():
+            for l in open(el.path, encoding="utf-8").readlines():
                 if l.startswith('Valid-License-Identifier:'):
                     lid = l.split(':')[1].strip().upper()
                     if lid in spdx.licenses:
diff --git a/scripts/spelling.txt b/scripts/spelling.txt
index 7b6a01291598..17fdc620d548 100644
--- a/scripts/spelling.txt
+++ b/scripts/spelling.txt
@@ -22,6 +22,7 @@ absolut||absolute
 absoulte||absolute
 acccess||access
 acceess||access
+accelaration||acceleration
 acceleratoin||acceleration
 accelleration||acceleration
 accesing||accessing
@@ -264,6 +265,7 @@ calucate||calculate
 calulate||calculate
 cancelation||cancellation
 cancle||cancel
+canot||cannot
 capabilites||capabilities
 capabilties||capabilities
 capabilty||capability
@@ -494,7 +496,10 @@ digial||digital
 dimention||dimension
 dimesions||dimensions
 diconnected||disconnected
+disabed||disabled
+disble||disable
 disgest||digest
+disired||desired
 dispalying||displaying
 diplay||display
 directon||direction
@@ -710,6 +715,7 @@ havind||having
 heirarchically||hierarchically
 heirarchy||hierarchy
 helpfull||helpful
+hearbeat||heartbeat
 heterogenous||heterogeneous
 hexdecimal||hexadecimal
 hybernate||hibernate
@@ -989,6 +995,7 @@ notications||notifications
 notifcations||notifications
 notifed||notified
 notity||notify
+nubmer||number
 numebr||number
 numner||number
 obtaion||obtain
@@ -1014,8 +1021,10 @@ ommiting||omitting
 ommitted||omitted
 onself||oneself
 ony||only
+openning||opening
 operatione||operation
 opertaions||operations
+opportunies||opportunities
 optionnal||optional
 optmizations||optimizations
 orientatied||orientated
@@ -1111,6 +1120,7 @@ prefitler||prefilter
 preform||perform
 premption||preemption
 prepaired||prepared
+prepate||prepare
 preperation||preparation
 preprare||prepare
 pressre||pressure
@@ -1123,6 +1133,7 @@ privilaged||privileged
 privilage||privilege
 priviledge||privilege
 priviledges||privileges
+privleges||privileges
 probaly||probably
 procceed||proceed
 proccesors||processors
@@ -1167,6 +1178,7 @@ promixity||proximity
 psudo||pseudo
 psuedo||pseudo
 psychadelic||psychedelic
+purgable||purgeable
 pwoer||power
 queing||queuing
 quering||querying
@@ -1180,6 +1192,7 @@ receieve||receive
 recepient||recipient
 recevied||received
 receving||receiving
+recievd||received
 recieved||received
 recieve||receive
 reciever||receiver
@@ -1228,6 +1241,7 @@ reponse||response
 representaion||representation
 reqeust||request
 reqister||register
+requed||requeued
 requestied||requested
 requiere||require
 requirment||requirement
@@ -1332,6 +1346,7 @@ singal||signal
 singed||signed
 sleeped||slept
 sliped||slipped
+softwade||software
 softwares||software
 soley||solely
 souce||source
@@ -1510,6 +1525,7 @@ unintialized||uninitialized
 unitialized||uninitialized
 unkmown||unknown
 unknonw||unknown
+unknouwn||unknown
 unknow||unknown
 unkown||unknown
 unamed||unnamed
diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index fe92020d67e3..288e86a9d1e5 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -22,16 +22,18 @@ my $need = 0;
 my $optional = 0;
 my $need_symlink = 0;
 my $need_sphinx = 0;
-my $need_venv = 0;
+my $need_pip = 0;
 my $need_virtualenv = 0;
 my $rec_sphinx_upgrade = 0;
 my $install = "";
 my $virtenv_dir = "";
 my $python_cmd = "";
+my $activate_cmd;
 my $min_version;
 my $cur_version;
 my $rec_version = "1.7.9";	# PDF won't build here
 my $min_pdf_version = "2.4.4";	# Min version where pdf builds
+my $latest_avail_ver;
 
 #
 # Command line arguments
@@ -319,10 +321,7 @@ sub check_sphinx()
 		return;
 	}
 
-	if ($cur_version lt $rec_version) {
-		$rec_sphinx_upgrade = 1;
-		return;
-	}
+	return if ($cur_version lt $rec_version);
 
 	# On version check mode, just assume Sphinx has all mandatory deps
 	exit (0) if ($version_check);
@@ -701,6 +700,162 @@ sub deactivate_help()
 	printf "\tdeactivate\n";
 }
 
+sub get_virtenv()
+{
+	my $ver;
+	my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
+	my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
+
+	@activates = sort {$b cmp $a} @activates;
+
+	foreach my $f (@activates) {
+		next if ($f lt $min_activate);
+
+		my $sphinx_cmd = $f;
+		$sphinx_cmd =~ s/activate/sphinx-build/;
+		next if (! -f $sphinx_cmd);
+
+		my $ver = get_sphinx_version($sphinx_cmd);
+		if ($need_sphinx && ($ver ge $min_version)) {
+			return ($f, $ver);
+		} elsif ($ver gt $cur_version) {
+			return ($f, $ver);
+		}
+	}
+	return ("", "");
+}
+
+sub recommend_sphinx_upgrade()
+{
+	my $venv_ver;
+
+	# Avoid running sphinx-builds from venv if $cur_version is good
+	if ($cur_version && ($cur_version ge $rec_version)) {
+		$latest_avail_ver = $cur_version;
+		return;
+	}
+
+	# Get the highest version from sphinx_*/bin/sphinx-build and the
+	# corresponding command to activate the venv/virtenv
+	$activate_cmd = get_virtenv();
+
+	# Store the highest version from Sphinx existing virtualenvs
+	if (($activate_cmd ne "") && ($venv_ver gt $cur_version)) {
+		$latest_avail_ver = $venv_ver;
+	} else {
+		$latest_avail_ver = $cur_version if ($cur_version);
+	}
+
+	# As we don't know package version of Sphinx, and there's no
+	# virtual environments, don't check if upgrades are needed
+	if (!$virtualenv) {
+		return if (!$latest_avail_ver);
+	}
+
+	# Either there are already a virtual env or a new one should be created
+	$need_pip = 1;
+
+	# Return if the reason is due to an upgrade or not
+	if ($latest_avail_ver lt $rec_version) {
+		$rec_sphinx_upgrade = 1;
+	}
+}
+
+#
+# The logic here is complex, as it have to deal with different versions:
+#	- minimal supported version;
+#	- minimal PDF version;
+#	- recommended version.
+# It also needs to work fine with both distro's package and venv/virtualenv
+sub recommend_sphinx_version($)
+{
+	my $virtualenv_cmd = shift;
+
+	if ($latest_avail_ver lt $min_pdf_version) {
+		print "note: If you want pdf, you need at least Sphinx $min_pdf_version.\n";
+	}
+
+	# Version is OK. Nothing to do.
+	return if ($cur_version && ($cur_version ge $rec_version));
+
+	if (!$need_sphinx) {
+		# sphinx-build is present and its version is >= $min_version
+
+		#only recommend enabling a newer virtenv version if makes sense.
+		if ($latest_avail_ver gt $cur_version) {
+			printf "\nYou may also use the newer Sphinx version $latest_avail_ver with:\n";
+			printf "\tdeactivate\n"  if ($ENV{'PWD'} =~ /${virtenv_prefix}/);
+			printf "\t. $activate_cmd\n";
+			deactivate_help();
+
+			return;
+		}
+		return if ($latest_avail_ver ge $rec_version);
+	}
+
+	if (!$virtualenv) {
+		# No sphinx either via package or via virtenv. As we can't
+		# Compare the versions here, just return, recommending the
+		# user to install it from the package distro.
+		return if (!$latest_avail_ver);
+
+		# User doesn't want a virtenv recommendation, but he already
+		# installed one via virtenv with a newer version.
+		# So, print commands to enable it
+		if ($latest_avail_ver gt $cur_version) {
+			printf "\nYou may also use the Sphinx virtualenv version $latest_avail_ver with:\n";
+			printf "\tdeactivate\n"  if ($ENV{'PWD'} =~ /${virtenv_prefix}/);
+			printf "\t. $activate_cmd\n";
+			deactivate_help();
+
+			return;
+		}
+		print "\n";
+	} else {
+		$need++ if ($need_sphinx);
+	}
+
+	# Suggest newer versions if current ones are too old
+	if ($latest_avail_ver && $cur_version ge $min_version) {
+		# If there's a good enough version, ask the user to enable it
+		if ($latest_avail_ver ge $rec_version) {
+			printf "\nNeed to activate Sphinx (version $latest_avail_ver) on virtualenv with:\n";
+			printf "\t. $activate_cmd\n";
+			deactivate_help();
+
+			return;
+		}
+
+		# Version is above the minimal required one, but may be
+		# below the recommended one. So, print warnings/notes
+
+		if ($latest_avail_ver lt $rec_version) {
+			print "Warning: It is recommended at least Sphinx version $rec_version.\n";
+		}
+	}
+
+	# At this point, either it needs Sphinx or upgrade is recommended,
+	# both via pip
+
+	if ($rec_sphinx_upgrade) {
+		if (!$virtualenv) {
+			print "Instead of install/upgrade Python Sphinx pkg, you could use pip/pypi with:\n\n";
+		} else {
+			print "To upgrade Sphinx, use:\n\n";
+		}
+	} else {
+		print "Sphinx needs to be installed either as a package or via pip/pypi with:\n";
+	}
+
+	$python_cmd = find_python_no_venv();
+
+	printf "\t$virtualenv_cmd $virtenv_dir\n";
+
+	printf "\t. $virtenv_dir/bin/activate\n";
+	printf "\tpip install -r $requirement_file\n";
+	deactivate_help();
+}
+
 sub check_needs()
 {
 	# Check if Sphinx is already accessible from current environment
@@ -722,15 +877,14 @@ sub check_needs()
 		if ($virtualenv) {
 			my $tmp = qx($python_cmd --version 2>&1);
 			if ($tmp =~ m/(\d+\.)(\d+\.)/) {
-				if ($1 >= 3 && $2 >= 3) {
-					$need_venv = 1;		# python 3.3 or upper
-				} else {
-					$need_virtualenv = 1;
-				}
 				if ($1 < 3) {
 					# Fail if it finds python2 (or worse)
 					die "Python 3 is required to build the kernel docs\n";
 				}
+				if ($1 == 3 && $2 < 3) {
+					# Need Python 3.3 or upper for venv
+					$need_virtualenv = 1;
+				}
 			} else {
 				die "Warning: couldn't identify $python_cmd version!";
 			}
@@ -739,14 +893,22 @@ sub check_needs()
 		}
 	}
 
-	# Set virtualenv command line, if python < 3.3
+	recommend_sphinx_upgrade();
+
 	my $virtualenv_cmd;
-	if ($need_virtualenv) {
-		$virtualenv_cmd = findprog("virtualenv-3");
-		$virtualenv_cmd = findprog("virtualenv-3.5") if (!$virtualenv_cmd);
-		if (!$virtualenv_cmd) {
-			check_program("virtualenv", 0);
-			$virtualenv_cmd = "virtualenv";
+
+	if ($need_pip) {
+		# Set virtualenv command line, if python < 3.3
+		if ($need_virtualenv) {
+			$virtualenv_cmd = findprog("virtualenv-3");
+			$virtualenv_cmd = findprog("virtualenv-3.5") if (!$virtualenv_cmd);
+			if (!$virtualenv_cmd) {
+				check_program("virtualenv", 0);
+				$virtualenv_cmd = "virtualenv";
+			}
+		} else {
+			$virtualenv_cmd = "$python_cmd -m venv";
+			check_python_module("ensurepip", 0);
 		}
 	}
 
@@ -763,10 +925,6 @@ sub check_needs()
 	check_program("rsvg-convert", 2) if ($pdf);
 	check_program("latexmk", 2) if ($pdf);
 
-	if ($need_sphinx || $rec_sphinx_upgrade) {
-		check_python_module("ensurepip", 0) if ($need_venv);
-	}
-
 	# Do distro-specific checks and output distro-install commands
 	check_distros();
 
@@ -784,67 +942,7 @@ sub check_needs()
 		       which("sphinx-build-3");
 	}
 
-	# NOTE: if the system has a too old Sphinx version installed,
-	# it will recommend installing a newer version using virtualenv
-
-	if ($need_sphinx || $rec_sphinx_upgrade) {
-		my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
-		my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
-
-		if ($cur_version lt $rec_version) {
-			print "Warning: It is recommended at least Sphinx version $rec_version.\n";
-			print "         If you want pdf, you need at least $min_pdf_version.\n";
-		}
-		if ($cur_version lt $min_pdf_version) {
-			print "Note: It is recommended at least Sphinx version $min_pdf_version if you need PDF support.\n";
-		}
-		@activates = sort {$b cmp $a} @activates;
-		my ($activate, $ver);
-		foreach my $f (@activates) {
-			next if ($f lt $min_activate);
-
-			my $sphinx_cmd = $f;
-			$sphinx_cmd =~ s/activate/sphinx-build/;
-			next if (! -f $sphinx_cmd);
-
-			$ver = get_sphinx_version($sphinx_cmd);
-			if ($need_sphinx && ($ver ge $min_version)) {
-				$activate = $f;
-				last;
-			} elsif ($ver gt $cur_version) {
-				$activate = $f;
-				last;
-			}
-		}
-		if ($activate ne "") {
-			if ($need_sphinx) {
-				printf "\nNeed to activate Sphinx (version $ver) on virtualenv with:\n";
-				printf "\t. $activate\n";
-				deactivate_help();
-				exit (1);
-			} else {
-				printf "\nYou may also use a newer Sphinx (version $ver) with:\n";
-				printf "\tdeactivate && . $activate\n";
-			}
-		} else {
-			my $rec_activate = "$virtenv_dir/bin/activate";
-
-			print "To upgrade Sphinx, use:\n\n" if ($rec_sphinx_upgrade);
-
-			$python_cmd = find_python_no_venv();
-
-			if ($need_venv) {
-				printf "\t$python_cmd -m venv $virtenv_dir\n";
-			} else {
-				printf "\t$virtualenv_cmd $virtenv_dir\n";
-			}
-			printf "\t. $rec_activate\n";
-			printf "\tpip install -r $requirement_file\n";
-			deactivate_help();
-
-			$need++ if (!$rec_sphinx_upgrade);
-		}
-	}
+	recommend_sphinx_version($virtualenv_cmd);
 	printf "\n";
 
 	print "All optional dependencies are met.\n" if (!$optional);
diff --git a/scripts/subarch.include b/scripts/subarch.include
index 650682821126..776849a3c500 100644
--- a/scripts/subarch.include
+++ b/scripts/subarch.include
@@ -7,7 +7,7 @@
 SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
 				  -e s/sun4u/sparc64/ \
 				  -e s/arm.*/arm/ -e s/sa110/arm/ \
-				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
+				  -e s/s390x/s390/ \
 				  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 				  -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
 				  -e s/riscv.*/riscv/)
diff --git a/scripts/syscallhdr.sh b/scripts/syscallhdr.sh
index 848ac2735115..22e34cd46b9b 100755
--- a/scripts/syscallhdr.sh
+++ b/scripts/syscallhdr.sh
@@ -69,7 +69,7 @@ guard=_UAPI_ASM_$(basename "$outfile" |
 	sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
 	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g')
 
-grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$infile" | sort -n | {
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$infile" | {
 	echo "#ifndef $guard"
 	echo "#define $guard"
 	echo
diff --git a/scripts/syscallnr.sh b/scripts/syscallnr.sh
new file mode 100755
index 000000000000..3aa29e0dcc52
--- /dev/null
+++ b/scripts/syscallnr.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Generate a syscall number header.
+#
+# Each line of the syscall table should have the following format:
+#
+# NR ABI NAME [NATIVE] [COMPAT]
+#
+# NR       syscall number
+# ABI      ABI name
+# NAME     syscall name
+# NATIVE   native entry point (optional)
+# COMPAT   compat entry point (optional)
+set -e
+
+usage() {
+	echo >&2 "usage: $0 [--abis ABIS] [--prefix PREFIX] INFILE OUTFILE" >&2
+	echo >&2
+	echo >&2 "  INFILE    input syscall table"
+	echo >&2 "  OUTFILE   output header file"
+	echo >&2
+	echo >&2 "options:"
+	echo >&2 "  --abis ABIS        ABI(s) to handle (By default, all lines are handled)"
+	echo >&2 "  --prefix PREFIX    The prefix to the macro like __NR_<PREFIX><NAME>"
+	exit 1
+}
+
+# default unless specified by options
+abis=
+prefix=
+
+while [ $# -gt 0 ]
+do
+	case $1 in
+	--abis)
+		abis=$(echo "($2)" | tr ',' '|')
+		shift 2;;
+	--prefix)
+		prefix=$2
+		shift 2;;
+	-*)
+		echo "$1: unknown option" >&2
+		usage;;
+	*)
+		break;;
+	esac
+done
+
+if [ $# -ne 2 ]; then
+	usage
+fi
+
+infile="$1"
+outfile="$2"
+
+guard=_ASM_$(basename "$outfile" |
+	sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g')
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$infile" | sort -n | {
+	echo "#ifndef $guard"
+	echo "#define $guard"
+	echo
+
+	max=0
+	while read nr abi name native compat ; do
+		max=$nr
+	done
+
+	echo "#define __NR_${prefix}syscalls $(($max + 1))"
+	echo
+	echo "#endif /* $guard */"
+} > "$outfile"
diff --git a/scripts/syscalltbl.sh b/scripts/syscalltbl.sh
index aa6ab156301c..6abe143889ef 100755
--- a/scripts/syscalltbl.sh
+++ b/scripts/syscalltbl.sh
@@ -52,10 +52,15 @@ outfile="$2"
 
 nxt=0
 
-grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | sort -n | {
+grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | {
 
 	while read nr abi name native compat ; do
 
+		if [ $nxt -gt $nr ]; then
+			echo "error: $infile: syscall table is not sorted or duplicates the same syscall number" >&2
+			exit 1
+		fi
+
 		while [ $nxt -lt $nr ]; do
 			echo "__SYSCALL($nxt, sys_ni_syscall)"
 			nxt=$((nxt + 1))
diff --git a/scripts/tools-support-relr.sh b/scripts/tools-support-relr.sh
index 45e8aa360b45..cb55878bd5b8 100755
--- a/scripts/tools-support-relr.sh
+++ b/scripts/tools-support-relr.sh
@@ -7,7 +7,8 @@ trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
 cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
 void *p = &p;
 END
-$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
+$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr \
+  --use-android-relr-tags -o $tmp_file
 
 # Despite printing an error message, GNU nm still exits with exit code 0 if it
 # sees a relr section. So we need to check that nothing is printed to stderr.
diff --git a/scripts/tracing/draw_functrace.py b/scripts/tracing/draw_functrace.py
index 74f8aadfd4cb..7011fbe003ff 100755
--- a/scripts/tracing/draw_functrace.py
+++ b/scripts/tracing/draw_functrace.py
@@ -17,7 +17,7 @@ Usage:
 	$ cat /sys/kernel/debug/tracing/trace_pipe > ~/raw_trace_func
 	Wait some times but not too much, the script is a bit slow.
 	Break the pipe (Ctrl + Z)
-	$ scripts/draw_functrace.py < raw_trace_func > draw_functrace
+	$ scripts/tracing/draw_functrace.py < ~/raw_trace_func > draw_functrace
 	Then you have your drawn trace in draw_functrace
 """
 
@@ -103,10 +103,10 @@ def parseLine(line):
 	line = line.strip()
 	if line.startswith("#"):
 		raise CommentLineException
-	m = re.match("[^]]+?\\] +([0-9.]+): (\\w+) <-(\\w+)", line)
+	m = re.match("[^]]+?\\] +([a-z.]+) +([0-9.]+): (\\w+) <-(\\w+)", line)
 	if m is None:
 		raise BrokenLineException
-	return (m.group(1), m.group(2), m.group(3))
+	return (m.group(2), m.group(3), m.group(4))
 
 
 def main():
diff --git a/scripts/xen-hypercalls.sh b/scripts/xen-hypercalls.sh
index f18b00843df3..f18b00843df3 100644..100755
--- a/scripts/xen-hypercalls.sh
+++ b/scripts/xen-hypercalls.sh