From a5575df58004e8444e5a2a307407c3f1a6ecf175 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Tue, 25 Jan 2022 15:40:27 +0900
Subject: kbuild: unify cmd_copy and cmd_shipped

cmd_copy and cmd_shipped have similar functionality. The difference is
that cmd_copy uses 'cp' while cmd_shipped 'cat'.

Unify them into cmd_copy because this macro name is more intuitive.

Going forward, cmd_copy will use 'cat' to avoid the permission issue.
I also thought of 'cp --no-preserve=mode' but this option is not
mentioned in the POSIX spec [1], so I am keeping the 'cat' command.

[1]: https://pubs.opengroup.org/onlinepubs/009695299/utilities/cp.html
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
---
 scripts/Makefile.lib | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

(limited to 'scripts/Makefile.lib')

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 79be57fdd32a..40735a3adb54 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -246,20 +246,16 @@ $(foreach m, $(notdir $1), \
 	$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
 endef
 
-quiet_cmd_copy = COPY    $@
-      cmd_copy = cp $< $@
-
-# Shipped files
+# Copy a file
 # ===========================================================================
 # 'cp' preserves permissions. If you use it to copy a file in read-only srctree,
 # the copy would be read-only as well, leading to an error when executing the
 # rule next time. Use 'cat' instead in order to generate a writable file.
-
-quiet_cmd_shipped = SHIPPED $@
-cmd_shipped = cat $< > $@
+quiet_cmd_copy = COPY    $@
+      cmd_copy = cat $< > $@
 
 $(obj)/%: $(src)/%_shipped
-	$(call cmd,shipped)
+	$(call cmd,copy)
 
 # Commands useful for building a boot image
 # ===========================================================================
-- 
cgit v1.2.3


From 5c8166419acf468b5bc3e48f928a040485d3e0c2 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Fri, 11 Feb 2022 14:14:11 +0900
Subject: kbuild: replace $(if A,A,B) with $(or A,B)

$(or ...) is available since GNU Make 3.81, and useful to shorten the
code in some places.

Covert as follows:

  $(if A,A,B)  -->  $(or A,B)

This patch also converts:

  $(if A, A, B) --> $(or A, B)

Strictly speaking, the latter is not an equivalent conversion because
GNU Make keeps spaces after commas; if A is not empty, $(if A, A, B)
expands to " A", while $(or A, B) expands to "A".

Anyway, preceding spaces are not significant in the code hunks I touched.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
---
 Makefile                                    | 8 ++++----
 scripts/Makefile.build                      | 3 +--
 scripts/Makefile.clean                      | 2 +-
 scripts/Makefile.lib                        | 4 ++--
 tools/bpf/bpftool/Makefile                  | 4 ++--
 tools/build/Makefile                        | 2 +-
 tools/counter/Makefile                      | 2 +-
 tools/gpio/Makefile                         | 2 +-
 tools/hv/Makefile                           | 2 +-
 tools/iio/Makefile                          | 2 +-
 tools/lib/api/Makefile                      | 2 +-
 tools/lib/bpf/Makefile                      | 2 +-
 tools/lib/perf/Makefile                     | 2 +-
 tools/lib/subcmd/Makefile                   | 2 +-
 tools/objtool/Makefile                      | 2 +-
 tools/pci/Makefile                          | 2 +-
 tools/perf/Makefile.perf                    | 4 ++--
 tools/power/x86/intel-speed-select/Makefile | 2 +-
 tools/scripts/utilities.mak                 | 2 +-
 tools/spi/Makefile                          | 6 +++---
 tools/tracing/rtla/Makefile                 | 2 +-
 tools/usb/Makefile                          | 2 +-
 22 files changed, 30 insertions(+), 31 deletions(-)

(limited to 'scripts/Makefile.lib')

diff --git a/Makefile b/Makefile
index 351f043e133a..a82095c69fdd 100644
--- a/Makefile
+++ b/Makefile
@@ -1240,8 +1240,8 @@ define filechk_version.h
 	echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL)
 endef
 
-$(version_h): PATCHLEVEL := $(if $(PATCHLEVEL), $(PATCHLEVEL), 0)
-$(version_h): SUBLEVEL := $(if $(SUBLEVEL), $(SUBLEVEL), 0)
+$(version_h): PATCHLEVEL := $(or $(PATCHLEVEL), 0)
+$(version_h): SUBLEVEL := $(or $(SUBLEVEL), 0)
 $(version_h): FORCE
 	$(call filechk,version.h)
 
@@ -1624,7 +1624,7 @@ help:
 	@$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
 	@echo  ''
 	@echo  'Architecture specific targets ($(SRCARCH)):'
-	@$(if $(archhelp),$(archhelp),\
+	@$(or $(archhelp),\
 		echo '  No architecture specific help defined for $(SRCARCH)')
 	@echo  ''
 	@$(if $(boards), \
@@ -1841,7 +1841,7 @@ $(clean-dirs):
 
 clean: $(clean-dirs)
 	$(call cmd,rmfiles)
-	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
+	@find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
 		\( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '*.ko.*' \
 		-o -name '*.dtb' -o -name '*.dtbo' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index a4b89b757287..7e177d0ee02d 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -40,8 +40,7 @@ include $(srctree)/scripts/Makefile.compiler
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
-kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
-include $(kbuild-file)
+include $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile)
 
 include $(srctree)/scripts/Makefile.lib
 
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index fd6175322470..74cb1c5c3658 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -12,7 +12,7 @@ include $(srctree)/scripts/Kbuild.include
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
-include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
+include $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile)
 
 # Figure out what we need to build from the various variables
 # ==========================================================================
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 40735a3adb54..49377d2c2d20 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -111,7 +111,7 @@ subdir-ym	:= $(addprefix $(obj)/,$(subdir-ym))
 modname-multi = $(sort $(foreach m,$(multi-obj-ym),\
 		$(if $(filter $*.o, $(call suffix-search, $m, .o, -objs -y -m)),$(m:.o=))))
 
-__modname = $(if $(modname-multi),$(modname-multi),$(basetarget))
+__modname = $(or $(modname-multi),$(basetarget))
 
 modname = $(subst $(space),:,$(__modname))
 modfile = $(addprefix $(obj)/,$(__modname))
@@ -434,7 +434,7 @@ MKIMAGE := $(srctree)/scripts/mkuboot.sh
 # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
 # the number of overrides in arch makefiles
 UIMAGE_ARCH ?= $(SRCARCH)
-UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
+UIMAGE_COMPRESSION ?= $(or $(2),none)
 UIMAGE_OPTS-y ?=
 UIMAGE_TYPE ?= kernel
 UIMAGE_LOADADDR ?= arch_must_set_this
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index 83369f55df61..ebd21a609910 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -78,7 +78,7 @@ CFLAGS += -O2
 CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
 CFLAGS += $(filter-out -Wswitch-enum -Wnested-externs,$(EXTRA_WARNINGS))
 CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
-	-I$(if $(OUTPUT),$(OUTPUT),.) \
+	-I$(or $(OUTPUT),.) \
 	-I$(LIBBPF_INCLUDE) \
 	-I$(srctree)/kernel/bpf/ \
 	-I$(srctree)/tools/include \
@@ -186,7 +186,7 @@ endif
 
 $(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF_BOOTSTRAP)
 	$(QUIET_CLANG)$(CLANG) \
-		-I$(if $(OUTPUT),$(OUTPUT),.) \
+		-I$(or $(OUTPUT),.) \
 		-I$(srctree)/tools/include/uapi/ \
 		-I$(LIBBPF_BOOTSTRAP_INCLUDE) \
 		-g -O2 -Wall -target bpf -c $< -o $@
diff --git a/tools/build/Makefile b/tools/build/Makefile
index 6f11e6fc9ffe..17cdf01e29a0 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -36,7 +36,7 @@ TMP_O := $(if $(OUTPUT),$(OUTPUT)feature/,./)
 
 clean:
 	$(call QUIET_CLEAN, fixdep)
-	$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
+	$(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
 	$(Q)rm -f $(OUTPUT)fixdep
 	$(call QUIET_CLEAN, feature-detect)
 ifneq ($(wildcard $(TMP_O)),)
diff --git a/tools/counter/Makefile b/tools/counter/Makefile
index 5ebc195fd9c0..8843f0fa6119 100644
--- a/tools/counter/Makefile
+++ b/tools/counter/Makefile
@@ -40,7 +40,7 @@ $(OUTPUT)counter_example: $(COUNTER_EXAMPLE)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -rf $(OUTPUT)include/linux/counter.h
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index 440434027557..d29c9c49e251 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -78,7 +78,7 @@ $(OUTPUT)gpio-watch: $(GPIO_WATCH_IN)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -f $(OUTPUT)include/linux/gpio.h
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index b57143d9459c..fe770e679ae8 100644
--- a/tools/hv/Makefile
+++ b/tools/hv/Makefile
@@ -47,7 +47,7 @@ $(OUTPUT)hv_fcopy_daemon: $(HV_FCOPY_DAEMON_IN)
 
 clean:
 	rm -f $(ALL_PROGRAMS)
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(sbindir); \
diff --git a/tools/iio/Makefile b/tools/iio/Makefile
index 5d12ac4e7f8f..fa720f062229 100644
--- a/tools/iio/Makefile
+++ b/tools/iio/Makefile
@@ -58,7 +58,7 @@ $(OUTPUT)iio_generic_buffer: $(IIO_GENERIC_BUFFER_IN)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -rf $(OUTPUT)include/linux/iio
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index a13e9c7f1fc5..e21e1b40b525 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -60,7 +60,7 @@ $(LIBFILE): $(API_IN)
 
 clean:
 	$(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE); \
-	find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
+	find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
 
 FORCE:
 
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index f947b61b2107..36b85aea0393 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -60,7 +60,7 @@ ifndef VERBOSE
   VERBOSE = 0
 endif
 
-INCLUDES = -I$(if $(OUTPUT),$(OUTPUT),.)				\
+INCLUDES = -I$(or $(OUTPUT),.) \
 	   -I$(srctree)/tools/include -I$(srctree)/tools/include/uapi
 
 export prefix libdir src obj
diff --git a/tools/lib/perf/Makefile b/tools/lib/perf/Makefile
index 08fe6e3c4089..21df023a2103 100644
--- a/tools/lib/perf/Makefile
+++ b/tools/lib/perf/Makefile
@@ -153,7 +153,7 @@ $(TESTS_STATIC): $(TESTS_IN) $(LIBPERF_A) $(LIBAPI)
 	$(QUIET_LINK)$(CC) -o $@ $^
 
 $(TESTS_SHARED): $(TESTS_IN) $(LIBAPI)
-	$(QUIET_LINK)$(CC) -o $@ -L$(if $(OUTPUT),$(OUTPUT),.) $^ -lperf
+	$(QUIET_LINK)$(CC) -o $@ -L$(or $(OUTPUT),.) $^ -lperf
 
 make-tests: libs $(TESTS_SHARED) $(TESTS_STATIC)
 
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 1c777a72bb39..8f1a09cdfd17 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -63,7 +63,7 @@ $(LIBFILE): $(SUBCMD_IN)
 
 clean:
 	$(call QUIET_CLEAN, libsubcmd) $(RM) $(LIBFILE); \
-	find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
+	find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
 
 FORCE:
 
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 92ce4fce7bc7..0dbd397f319d 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -13,7 +13,7 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
 endif
 
 SUBCMD_SRCDIR		= $(srctree)/tools/lib/subcmd/
-LIBSUBCMD_OUTPUT	= $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
+LIBSUBCMD_OUTPUT	= $(or $(OUTPUT),$(CURDIR)/)
 LIBSUBCMD		= $(LIBSUBCMD_OUTPUT)libsubcmd.a
 
 OBJTOOL    := $(OUTPUT)objtool
diff --git a/tools/pci/Makefile b/tools/pci/Makefile
index 4b95a5176355..57744778b518 100644
--- a/tools/pci/Makefile
+++ b/tools/pci/Makefile
@@ -42,7 +42,7 @@ $(OUTPUT)pcitest: $(PCITEST_IN)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -rf $(OUTPUT)include/
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index ac861e42c8f7..8583d18a3739 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -724,7 +724,7 @@ endif
 # get relative building directory (to $(OUTPUT))
 # and '.' if it's $(OUTPUT) itself
 __build-dir = $(subst $(OUTPUT),,$(dir $@))
-build-dir   = $(if $(__build-dir),$(__build-dir),.)
+build-dir   = $(or $(__build-dir),.)
 
 prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioctl_array) \
 	$(fadvise_advice_array) \
@@ -1090,7 +1090,7 @@ bpf-skel-clean:
 
 clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf-iostat $(LANG_BINDINGS)
-	$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
+	$(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
 	$(Q)$(RM) $(OUTPUT).config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32 $(OUTPUT)pmu-events/jevents $(OUTPUT)$(LIBJVMTI).so
 	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
diff --git a/tools/power/x86/intel-speed-select/Makefile b/tools/power/x86/intel-speed-select/Makefile
index 12c6939dca2a..7eaa517cd403 100644
--- a/tools/power/x86/intel-speed-select/Makefile
+++ b/tools/power/x86/intel-speed-select/Makefile
@@ -43,7 +43,7 @@ $(OUTPUT)intel-speed-select: $(ISST_IN)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -rf $(OUTPUT)include/linux/isst_if.h
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
diff --git a/tools/scripts/utilities.mak b/tools/scripts/utilities.mak
index c16ce833079c..172e47273b5d 100644
--- a/tools/scripts/utilities.mak
+++ b/tools/scripts/utilities.mak
@@ -175,5 +175,5 @@ _ge-abspath = $(if $(is-executable),$(1))
 define get-executable-or-default
 $(if $($(1)),$(call _ge_attempt,$($(1)),$(1)),$(call _ge_attempt,$(2)))
 endef
-_ge_attempt = $(if $(get-executable),$(get-executable),$(call _gea_err,$(2)))
+_ge_attempt = $(or $(get-executable),$(call _gea_err,$(2)))
 _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
diff --git a/tools/spi/Makefile b/tools/spi/Makefile
index 0aa6dbd31fb8..7fccd245a535 100644
--- a/tools/spi/Makefile
+++ b/tools/spi/Makefile
@@ -53,9 +53,9 @@ $(OUTPUT)spidev_fdx: $(SPIDEV_FDX_IN)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -rf $(OUTPUT)include/
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '\.*.o.d' -delete
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '\.*.o.cmd' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete
+	find $(or $(OUTPUT),.) -name '\.*.o.d' -delete
+	find $(or $(OUTPUT),.) -name '\.*.o.cmd' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
diff --git a/tools/tracing/rtla/Makefile b/tools/tracing/rtla/Makefile
index 5a1eda617992..11fb417abb42 100644
--- a/tools/tracing/rtla/Makefile
+++ b/tools/tracing/rtla/Makefile
@@ -46,7 +46,7 @@ DATADIR	:=	/usr/share
 DOCDIR	:=	$(DATADIR)/doc
 MANDIR	:=	$(DATADIR)/man
 LICDIR	:=	$(DATADIR)/licenses
-SRCTREE	:=	$(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
+SRCTREE	:=	$(or $(BUILD_SRC),$(CURDIR))
 
 # If running from the tarball, man pages are stored in the Documentation
 # dir. If running from the kernel source, man pages are stored in
diff --git a/tools/usb/Makefile b/tools/usb/Makefile
index 1b128e551b2e..c6235667dd46 100644
--- a/tools/usb/Makefile
+++ b/tools/usb/Makefile
@@ -38,7 +38,7 @@ $(OUTPUT)ffs-test: $(FFS_TEST_IN)
 
 clean:
 	rm -f $(ALL_PROGRAMS)
-	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete -o -name '\.*.o.cmd' -delete
+	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete -o -name '\.*.o.cmd' -delete
 
 install: $(ALL_PROGRAMS)
 	install -d -m 755 $(DESTDIR)$(bindir);		\
-- 
cgit v1.2.3


From 2783a7f56f9980f61ca809b826bcd14dc77eb7b9 Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Thu, 10 Mar 2022 10:05:12 -0600
Subject: dt-bindings: kbuild: Pass DT_SCHEMA_FILES to dt-validate

In preparation for supporting validation of DTB files, the full
processed schema will always be needed in order to extract type
information from it. Therefore, the processed schema containing only
what DT_SCHEMA_FILES specifies won't work. Instead, dt-validate has
gained an option, -l or --limit, to specify which schema(s) to use for
validation.

As the command line option is new, we the minimum dtschema version must be
updated.

Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220310160513.1708182-2-robh@kernel.org
---
 Documentation/devicetree/bindings/Makefile | 28 +++-------------------------
 scripts/Makefile.lib                       |  5 ++---
 2 files changed, 5 insertions(+), 28 deletions(-)

(limited to 'scripts/Makefile.lib')

diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 29b5dbd0807e..2716f7b9e25e 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -6,7 +6,7 @@ DT_MK_SCHEMA ?= dt-mk-schema
 DT_SCHEMA_LINT := $(shell which yamllint || \
   echo "warning: python package 'yamllint' not installed, skipping" >&2)
 
-DT_SCHEMA_MIN_VERSION = 2021.2.1
+DT_SCHEMA_MIN_VERSION = 2022.3
 
 PHONY += check_dtschema_version
 check_dtschema_version:
@@ -25,9 +25,6 @@ quiet_cmd_extract_ex = DTEX    $@
 $(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
 	$(call if_changed,extract_ex)
 
-# Use full schemas when checking %.example.dts
-DT_TMP_SCHEMA := $(obj)/processed-schema-examples.json
-
 find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
 		-name 'processed-schema*' ! \
 		-name '*.example.dt.yaml' \)
@@ -70,29 +67,10 @@ override DTC_FLAGS := \
 # Disable undocumented compatible checks until warning free
 override DT_CHECKER_FLAGS ?=
 
-$(obj)/processed-schema-examples.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE
+$(obj)/processed-schema.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE
 	$(call if_changed_rule,chkdt)
 
-ifeq ($(DT_SCHEMA_FILES),)
-
-# Unless DT_SCHEMA_FILES is specified, use the full schema for dtbs_check too.
-# Just copy processed-schema-examples.json
-
-$(obj)/processed-schema.json: $(obj)/processed-schema-examples.json FORCE
-	$(call if_changed,copy)
-
-else
-
-# If DT_SCHEMA_FILES is specified, use it for processed-schema.json
-
-$(obj)/processed-schema.json: DT_MK_SCHEMA_FLAGS := -u
-$(obj)/processed-schema.json: $(CHK_DT_DOCS) check_dtschema_version FORCE
-	$(call if_changed,mk_schema)
-
-endif
-
-always-$(CHECK_DT_BINDING) += processed-schema-examples.json
-always-$(CHECK_DTBS)       += processed-schema.json
+always-y += processed-schema.json
 always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dts, $(CHK_DT_DOCS))
 always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dt.yaml, $(CHK_DT_DOCS))
 
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 79be57fdd32a..c8c6f1745d03 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -361,10 +361,9 @@ $(multi-dtb-y): FORCE
 $(call multi_depend, $(multi-dtb-y), .dtb, -dtbs)
 
 DT_CHECKER ?= dt-validate
-DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),,-m)
+DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
 DT_BINDING_DIR := Documentation/devicetree/bindings
-# DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile
-DT_TMP_SCHEMA ?= $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
+DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
 
 quiet_cmd_dtb_check =	CHECK   $@
       cmd_dtb_check =	$(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@
-- 
cgit v1.2.3


From ef8795f3f1cef2b2d2cd5dfab3758a7601898bc9 Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Thu, 10 Mar 2022 10:05:13 -0600
Subject: dt-bindings: kbuild: Use DTB files for validation

Switch the DT validation to use DTB files directly instead of a DTS to
YAML conversion.

The original motivation for supporting validation on DTB files was to
enable running validation on a running system (e.g. 'dt-validate
/sys/firmware/fdt') or other cases where the original source DTS is not
available.

The YAML format was not without issues. Using DTBs with the schema type
information solves some of those problems. The YAML format relies on the
DTS source level information including bracketing of properties, size
directives, and phandle tags all of which are lost in a DTB file. While
standardizing the bracketing is a good thing, it does cause a lot of
extra warnings and churn to fix them.

Another issue has been signed types are not validated correctly as sign
information is not propagated to YAML. Using the schema type information
allows for proper handling of signed types. YAML also can't represent
the full range of 64-bit integers as numbers are stored as floats by
most/all parsers.

The DTB validation works by decoding property values using the type
information in the schemas themselves. The main corner case this does
not work for is matrix types where neither dimension is fixed. For
now, checking the dimensions in these cases are skipped.

Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220310160513.1708182-3-robh@kernel.org
---
 Documentation/devicetree/bindings/Makefile           |  7 +++----
 Documentation/devicetree/bindings/writing-schema.rst | 17 +++++------------
 scripts/Makefile.lib                                 | 20 +++++++-------------
 scripts/dtc/Makefile                                 | 13 -------------
 scripts/dtc/update-dtc-source.sh                     |  2 +-
 5 files changed, 16 insertions(+), 43 deletions(-)

(limited to 'scripts/Makefile.lib')

diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 2716f7b9e25e..e594e5898be0 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -26,8 +26,7 @@ $(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
 	$(call if_changed,extract_ex)
 
 find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
-		-name 'processed-schema*' ! \
-		-name '*.example.dt.yaml' \)
+		-name 'processed-schema*' \)
 
 find_cmd = $(find_all_cmd) | grep -F "$(DT_SCHEMA_FILES)"
 CHK_DT_DOCS := $(shell $(find_cmd))
@@ -72,9 +71,9 @@ $(obj)/processed-schema.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version
 
 always-y += processed-schema.json
 always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dts, $(CHK_DT_DOCS))
-always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dt.yaml, $(CHK_DT_DOCS))
+always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dtb, $(CHK_DT_DOCS))
 
 # Hack: avoid 'Argument list too long' error for 'make clean'. Remove most of
 # build artifacts here before they are processed by scripts/Makefile.clean
 clean-files = $(shell find $(obj) \( -name '*.example.dts' -o \
-			-name '*.example.dt.yaml' \) -delete 2>/dev/null)
+			-name '*.example.dtb' \) -delete 2>/dev/null)
diff --git a/Documentation/devicetree/bindings/writing-schema.rst b/Documentation/devicetree/bindings/writing-schema.rst
index 3b00fe981494..95ecf55559e5 100644
--- a/Documentation/devicetree/bindings/writing-schema.rst
+++ b/Documentation/devicetree/bindings/writing-schema.rst
@@ -120,20 +120,13 @@ project can be installed with pip::
 
     pip3 install dtschema
 
-Several executables (dt-doc-validate, dt-mk-schema, dt-validate) will be
-installed. Ensure they are in your PATH (~/.local/bin by default).
-
-dtc must also be built with YAML output support enabled. This requires that
-libyaml and its headers be installed on the host system. For some distributions
-that involves installing the development package, such as:
-
-Debian::
+Note that 'dtschema' installation requires 'swig' and Python development files
+installed first. On Debian/Ubuntu systems::
 
-  apt-get install libyaml-dev
+    apt install swig python3-dev
 
-Fedora::
-
-  dnf -y install libyaml-devel
+Several executables (dt-doc-validate, dt-mk-schema, dt-validate) will be
+installed. Ensure they are in your PATH (~/.local/bin by default).
 
 Running checks
 ~~~~~~~~~~~~~~
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index c8c6f1745d03..9d5320a47ef8 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -87,11 +87,6 @@ base-dtb-y := $(foreach m, $(multi-dtb-y), $(firstword $(call suffix-search, $m,
 
 always-y			+= $(dtb-y)
 
-ifneq ($(CHECK_DTBS),)
-always-y += $(patsubst %.dtb,%.dt.yaml, $(real-dtb-y))
-always-y += $(patsubst %.dtbo,%.dt.yaml, $(real-dtb-y))
-endif
-
 # Add subdir path
 
 extra-y		:= $(addprefix $(obj)/,$(extra-y))
@@ -347,12 +342,6 @@ cmd_dtc = $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ;
 		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
 	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
 
-$(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
-	$(call if_changed_dep,dtc)
-
-$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
-	$(call if_changed_dep,dtc)
-
 quiet_cmd_fdtoverlay = DTOVL   $@
       cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs)
 
@@ -360,22 +349,27 @@ $(multi-dtb-y): FORCE
 	$(call if_changed,fdtoverlay)
 $(call multi_depend, $(multi-dtb-y), .dtb, -dtbs)
 
+ifneq ($(CHECK_DTBS)$(CHECK_DT_BINDING),)
 DT_CHECKER ?= dt-validate
 DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
 DT_BINDING_DIR := Documentation/devicetree/bindings
 DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
 
 quiet_cmd_dtb_check =	CHECK   $@
-      cmd_dtb_check =	$(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@
+      cmd_dtb_check =	$(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true
+endif
 
 define rule_dtc
 	$(call cmd_and_fixdep,dtc)
 	$(call cmd,dtb_check)
 endef
 
-$(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
+$(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
 	$(call if_changed_rule,dtc)
 
+$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
+	$(call if_changed_dep,dtc)
+
 dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
 
 # Bzip2
diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index 1cba78e1dce6..4d32b9497da9 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -17,20 +17,7 @@ fdtoverlay-objs	:= $(libfdt) fdtoverlay.o util.o
 
 # Source files need to get at the userspace version of libfdt_env.h to compile
 HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
-
-ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),)
-ifneq ($(CHECK_DT_BINDING)$(CHECK_DTBS),)
-$(error dtc needs libyaml for DT schema validation support. \
-	Install the necessary libyaml development package.)
-endif
 HOST_EXTRACFLAGS += -DNO_YAML
-else
-dtc-objs	+= yamltree.o
-# To include <yaml.h> installed in a non-default path
-HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)
-# To link libyaml installed in a non-default path
-HOSTLDLIBS_dtc	:= $(shell pkg-config --libs yaml-0.1)
-endif
 
 # Generated files need one more search path to include headers in source tree
 HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
diff --git a/scripts/dtc/update-dtc-source.sh b/scripts/dtc/update-dtc-source.sh
index 32ff17ffd089..94627541533e 100755
--- a/scripts/dtc/update-dtc-source.sh
+++ b/scripts/dtc/update-dtc-source.sh
@@ -32,7 +32,7 @@ DTC_UPSTREAM_PATH=`pwd`/../dtc
 DTC_LINUX_PATH=`pwd`/scripts/dtc
 
 DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c \
-		srcpos.h treesource.c util.c util.h version_gen.h yamltree.c \
+		srcpos.h treesource.c util.c util.h version_gen.h \
 		dtc-lexer.l dtc-parser.y"
 LIBFDT_SOURCE="fdt.c fdt.h fdt_addresses.c fdt_empty_tree.c \
 		fdt_overlay.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c \
-- 
cgit v1.2.3


From d31ed5d767c0452b4f49846d80a0bfeafa3a4ded Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 18 Mar 2022 12:19:27 +0100
Subject: kbuild: Fixup the IBT kbuild changes

Masahiro-san deemed my kbuild changes to support whole module objtool
runs too terrible to live and gracefully provided an alternative.

Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/CAK7LNAQ2mYMnOKMQheVi+6byUFE3KEkjm1zcndNUfe0tORGvug@mail.gmail.com
---
 scripts/Makefile.build | 66 +++++++++++++++-----------------------------------
 scripts/Makefile.lib   |  4 +--
 scripts/mod/modpost.c  | 12 ++++-----
 3 files changed, 27 insertions(+), 55 deletions(-)

(limited to 'scripts/Makefile.lib')

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 926d2549a59c..2173a6729f30 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -86,18 +86,12 @@ ifdef need-builtin
 targets-for-builtin += $(obj)/built-in.a
 endif
 
-targets-for-modules :=
+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 CONFIG_X86_KERNEL_IBT
-targets-for-modules += $(patsubst %.o, %.objtool, $(filter %.o, $(obj-m)))
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
+targets-for-modules += $(patsubst %.o, %.prelink.o, $(filter %.o, $(obj-m)))
 endif
 
-targets-for-modules += $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))
-
 ifdef need-modorder
 targets-for-modules += $(obj)/modules.order
 endif
@@ -244,31 +238,16 @@ objtool_args =								\
 	$(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount)		\
 	$(if $(CONFIG_SLS), --sls)
 
-cmd_objtool = $(if $(objtool-enabled), ; $(objtool) $(objtool_args) $(@:.objtool=.o))
-cmd_gen_objtooldep = $(if $(objtool-enabled), { echo ; echo '$(@:.objtool=.o): $$(wildcard $(objtool))' ; } >> $(dot-target).cmd)
+cmd_objtool = $(if $(objtool-enabled), ; $(objtool) $(objtool_args) $@)
+cmd_gen_objtooldep = $(if $(objtool-enabled), { echo ; echo '$@: $$(wildcard $(objtool))' ; } >> $(dot-target).cmd)
 
 endif # CONFIG_STACK_VALIDATION
 
-ifdef CONFIG_LTO_CLANG
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
 
 # Skip objtool for LLVM bitcode
 $(obj)/%.o: objtool-enabled :=
 
-# objtool was skipped for LLVM bitcode, run it now that we have compiled
-# modules into native code
-$(obj)/%.lto.o: objtool-enabled = y
-$(obj)/%.lto.o: part-of-module := y
-
-else ifdef CONFIG_X86_KERNEL_IBT
-
-# Skip objtool on individual files
-$(obj)/%.o: objtool-enabled :=
-
-# instead run objtool on the module as a whole, right before
-# the final link pass with the linker script.
-$(obj)/%.objtool: objtool-enabled = y
-$(obj)/%.objtool: part-of-module := y
-
 else
 
 # 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
@@ -310,19 +289,24 @@ $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
 	$(call if_changed_rule,cc_o_c)
 	$(call cmd,force_checksrc)
 
-ifdef CONFIG_LTO_CLANG
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
 # 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 =						\
+quiet_cmd_cc_prelink_modules = LD [M]  $@
+      cmd_cc_prelink_modules =						\
 	$(LD) $(ld_flags) -r -o $@					\
-		$(shell [ -s $(@:.lto.o=.o.symversions) ] &&		\
-			echo -T $(@:.lto.o=.o.symversions))		\
+               $(shell [ -s $(@:.prelink.o=.o.symversions) ] &&		\
+                       echo -T $(@:.prelink.o=.o.symversions))		\
 		--whole-archive $(filter-out FORCE,$^)			\
 		$(cmd_objtool)
 
-$(obj)/%.lto.o: $(obj)/%.o FORCE
-	$(call if_changed,cc_lto_link_modules)
+# objtool was skipped for LLVM bitcode, run it now that we have compiled
+# modules into native code
+$(obj)/%.prelink.o: objtool-enabled = y
+$(obj)/%.prelink.o: part-of-module := y
+
+$(obj)/%.prelink.o: $(obj)/%.o FORCE
+	$(call if_changed,cc_prelink_modules)
 endif
 
 cmd_mod = { \
@@ -333,18 +317,6 @@ cmd_mod = { \
 $(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o FORCE
 	$(call if_changed,mod)
 
-#
-# Since objtool will re-write the file it will change the timestamps, therefore
-# it is critical that the %.objtool file gets a timestamp *after* objtool runs.
-#
-# Additionally, care must be had with ordering this rule against the other rules
-# that take %.o as a dependency.
-#
-cmd_objtool_mod = true $(cmd_objtool) ; touch $@
-
-$(obj)/%.objtool: $(obj)/%$(mod-prelink-ext).o FORCE
-	$(call if_changed,objtool_mod)
-
 quiet_cmd_cc_lst_c = MKLST   $@
       cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
 		     $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
@@ -498,7 +470,7 @@ $(obj)/lib.a: $(lib-y) FORCE
 # Do not replace $(filter %.o,^) with $(real-prereqs). When a single object
 # module is turned into a multi object module, $^ will contain header file
 # dependencies recorded in the .*.cmd file.
-ifdef CONFIG_LTO_CLANG
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
 quiet_cmd_link_multi-m = AR [M]  $@
 cmd_link_multi-m =						\
 	$(cmd_update_lto_symversions);				\
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 79be57fdd32a..8bfc9238237c 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -230,11 +230,11 @@ dtc_cpp_flags  = -Wp,-MMD,$(depfile).pre.tmp -nostdinc                    \
 		 $(addprefix -I,$(DTC_INCLUDE))                          \
 		 -undef -D__DTS__
 
-ifeq ($(CONFIG_LTO_CLANG),y)
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
 # 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
+mod-prelink-ext := .prelink
 endif
 
 # Useful for describing the dependency of composite objects
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 6bfa33217914..09c3ab0a9b37 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1989,9 +1989,9 @@ static char *remove_dot(char *s)
 		if (m && (s[n + m] == '.' || s[n + m] == 0))
 			s[n] = 0;
 
-		/* strip trailing .lto */
-		if (strends(s, ".lto"))
-			s[strlen(s) - 4] = '\0';
+		/* strip trailing .prelink */
+		if (strends(s, ".prelink"))
+			s[strlen(s) - 8] = '\0';
 	}
 	return s;
 }
@@ -2015,9 +2015,9 @@ static void read_symbols(const char *modname)
 		/* strip trailing .o */
 		tmp = NOFAIL(strdup(modname));
 		tmp[strlen(tmp) - 2] = '\0';
-		/* strip trailing .lto */
-		if (strends(tmp, ".lto"))
-			tmp[strlen(tmp) - 4] = '\0';
+		/* strip trailing .prelink */
+		if (strends(tmp, ".prelink"))
+			tmp[strlen(tmp) - 8] = '\0';
 		mod = new_module(tmp);
 		free(tmp);
 	}
-- 
cgit v1.2.3