Merge tag 'irqchip-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Fix atomicity of affinity update in the GIC driver
 - Don't sleep in atomic when waiting for a GICv4.1 RD to respond
 - Fix a couple of typos in user-visible messages

70 files changed, 1143 insertions, 765 deletions

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 6cabf20ce66a..0c3dc983439b 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -16,7 +16,7 @@ pound := \#
 dot-target = $(dir $@).$(notdir $@)
 
 ###
-# The temporary file to save gcc -MD generated dependencies must not
+# The temporary file to save gcc -MMD generated dependencies must not
 # contain a comma
 depfile = $(subst $(comma),_,$(dot-target).d)
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 9fcbfac15d1d..2e8810b7e5ed 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -50,6 +50,12 @@ ifneq ($(hostprogs)$(hostcxxlibs-y)$(hostcxxlibs-m),)
 include scripts/Makefile.host
 endif
 
+# Do not include userprogs rules unless needed.
+userprogs := $(sort $(userprogs))
+ifneq ($(userprogs),)
+include scripts/Makefile.userprogs
+endif
+
 ifndef obj
 $(warning kbuild: Makefile.build is included improperly)
 endif
@@ -63,19 +69,27 @@ endif
 
 # ===========================================================================
 
+# subdir-builtin and subdir-modorder may contain duplications. Use $(sort ...)
+subdir-builtin := $(sort $(filter %/built-in.a, $(real-obj-y)))
+subdir-modorder := $(sort $(filter %/modules.order, $(obj-m)))
+
+targets-for-builtin := $(extra-y)
+
 ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
-lib-target := $(obj)/lib.a
+targets-for-builtin += $(obj)/lib.a
 endif
 
 ifdef need-builtin
-builtin-target := $(obj)/built-in.a
+targets-for-builtin += $(obj)/built-in.a
 endif
 
-ifeq ($(CONFIG_MODULES)$(need-modorder),y1)
-modorder-target := $(obj)/modules.order
+targets-for-modules := $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))
+
+ifdef need-modorder
+targets-for-modules += $(obj)/modules.order
 endif
 
-mod-targets := $(patsubst %.o, %.mod, $(obj-m))
+targets += $(targets-for-builtin) $(targets-for-modules)
 
 # Linus' kernel sanity checking tool
 ifeq ($(KBUILD_CHECKSRC),1)
@@ -274,8 +288,6 @@ cmd_mod = { \
 $(obj)/%.mod: $(obj)/%.o FORCE
 	$(call if_changed,mod)
 
-targets += $(mod-targets)
-
 quiet_cmd_cc_lst_c = MKLST   $@
       cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
 		     $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
@@ -348,8 +360,9 @@ endif
 $(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
 	$(call if_changed_rule,as_o_S)
 
-targets += $(filter-out $(subdir-obj-y), $(real-obj-y)) $(real-obj-m) $(lib-y)
-targets += $(extra-y) $(always-y) $(MAKECMDGOALS)
+targets += $(filter-out $(subdir-builtin), $(real-obj-y))
+targets += $(filter-out $(subdir-modorder), $(real-obj-m))
+targets += $(lib-y) $(always-y) $(MAKECMDGOALS)
 
 # Linker scripts preprocessor (.lds.S -> .lds)
 # ---------------------------------------------------------------------------
@@ -373,44 +386,40 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
 # ---------------------------------------------------------------------------
 
 # To build objects in subdirs, we need to descend into the directories
-$(obj)/%/built-in.a: $(obj)/% ;
+$(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ;
+$(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;
 
 #
 # Rule to compile a set of .o files into one .a file (without symbol table)
 #
-ifdef builtin-target
 
 quiet_cmd_ar_builtin = AR      $@
       cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs)
 
-$(builtin-target): $(real-obj-y) FORCE
+$(obj)/built-in.a: $(real-obj-y) FORCE
 	$(call if_changed,ar_builtin)
 
-targets += $(builtin-target)
-endif # builtin-target
-
 #
 # Rule to create modules.order file
 #
 # Create commands to either record .ko file or cat modules.order from
 # a subdirectory
-$(modorder-target): $(subdir-ym) FORCE
-	$(Q){ $(foreach m, $(modorder), \
-	$(if $(filter %/modules.order, $m), cat $m, echo $m);) :; } \
+# Add $(obj-m) as the prerequisite to avoid updating the timestamp of
+# modules.order unless contained modules are updated.
+
+cmd_modules_order = { $(foreach m, $(real-prereqs), \
+	$(if $(filter %/modules.order, $m), cat $m, echo $(patsubst %.o,%.ko,$m));) :; } \
 	| $(AWK) '!x[$$0]++' - > $@
 
+$(obj)/modules.order: $(obj-m) FORCE
+	$(call if_changed,modules_order)
+
 #
 # Rule to compile a set of .o files into one .a file (with symbol table)
 #
-ifdef lib-target
-
-$(lib-target): $(lib-y) FORCE
+$(obj)/lib.a: $(lib-y) FORCE
 	$(call if_changed,ar)
 
-targets += $(lib-target)
-
-endif
-
 # NOTE:
 # Do not replace $(filter %.o,^) with $(real-prereqs). When a single object
 # module is turned into a multi object module, $^ will contain header file
@@ -473,8 +482,8 @@ endif
 
 else
 
-__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
-	 $(if $(KBUILD_MODULES),$(obj-m) $(mod-targets) $(modorder-target)) \
+__build: $(if $(KBUILD_BUILTIN), $(targets-for-builtin)) \
+	 $(if $(KBUILD_MODULES), $(targets-for-modules)) \
 	 $(subdir-ym) $(always-y)
 	@:
 
@@ -487,8 +496,8 @@ PHONY += $(subdir-ym)
 $(subdir-ym):
 	$(Q)$(MAKE) $(build)=$@ \
 	$(if $(filter $@/, $(KBUILD_SINGLE_TARGETS)),single-build=) \
-	need-builtin=$(if $(filter $@/built-in.a, $(subdir-obj-y)),1) \
-	need-modorder=$(if $(need-modorder),$(if $(filter $@/modules.order, $(modorder)),1))
+	need-builtin=$(if $(filter $@/built-in.a, $(subdir-builtin)),1) \
+	need-modorder=$(if $(filter $@/modules.order, $(subdir-modorder)),1)
 
 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
 # ---------------------------------------------------------------------------
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index 075f0cc2d8d7..e2c76122319d 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -29,7 +29,7 @@ subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
 
 __clean-files	:= $(extra-y) $(extra-m) $(extra-)       \
 		   $(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files)   \
-		   $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
+		   $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) $(userprogs) \
 		   $(hostcxxlibs-y) $(hostcxxlibs-m)
 
 __clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 2045855d0b75..c8a4a033dc3e 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -88,8 +88,8 @@ _hostcxx_flags += -I $(objtree)/$(obj)
 endif
 endif
 
-hostc_flags    = -Wp,-MD,$(depfile) $(_hostc_flags)
-hostcxx_flags  = -Wp,-MD,$(depfile) $(_hostcxx_flags)
+hostc_flags    = -Wp,-MMD,$(depfile) $(_hostc_flags)
+hostcxx_flags  = -Wp,-MMD,$(depfile) $(_hostcxx_flags)
 
 #####
 # Compile programs on the host
diff --git a/scripts/Makefile.kcsan b/scripts/Makefile.kcsan
new file mode 100644
index 000000000000..bd4da1af5953
--- /dev/null
+++ b/scripts/Makefile.kcsan
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+ifdef CONFIG_KCSAN
+
+# GCC and Clang accept backend options differently. Do not wrap in cc-option,
+# because Clang accepts "--param" even if it is unused.
+ifdef CONFIG_CC_IS_CLANG
+cc-param = -mllvm -$(1)
+else
+cc-param = --param -$(1)
+endif
+
+# Keep most options here optional, to allow enabling more compilers if absence
+# of some options does not break KCSAN nor causes false positive reports.
+CFLAGS_KCSAN := -fsanitize=thread \
+	$(call cc-option,$(call cc-param,tsan-instrument-func-entry-exit=0) -fno-optimize-sibling-calls) \
+	$(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1)) \
+	$(call cc-param,tsan-distinguish-volatile=1)
+
+endif # CONFIG_KCSAN
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 4b799737722c..99ac59c59826 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -4,8 +4,18 @@ asflags-y  += $(EXTRA_AFLAGS)
 ccflags-y  += $(EXTRA_CFLAGS)
 cppflags-y += $(EXTRA_CPPFLAGS)
 ldflags-y  += $(EXTRA_LDFLAGS)
+ifneq ($(always),)
+$(warning 'always' is deprecated. Please use 'always-y' instead)
 always-y   += $(always)
-hostprogs  += $(hostprogs-y) $(hostprogs-m)
+endif
+ifneq ($(hostprogs-y),)
+$(warning 'hostprogs-y' is deprecated. Please use 'hostprogs' instead)
+hostprogs  += $(hostprogs-y)
+endif
+ifneq ($(hostprogs-m),)
+$(warning 'hostprogs-m' is deprecated. Please use 'hostprogs' instead)
+hostprogs  += $(hostprogs-m)
+endif
 
 # flags that take effect in current and sub directories
 KBUILD_AFLAGS += $(subdir-asflags-y)
@@ -22,40 +32,35 @@ obj-m := $(filter-out $(obj-y),$(obj-m))
 # Filter out objects already built-in
 lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
 
-# Determine modorder.
-# Unfortunately, we don't have information about ordering between -y
-# and -m subdirs.  Just put -y's first.
-modorder	:= $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
+# Subdirectories we need to descend into
+subdir-ym := $(sort $(subdir-y) $(subdir-m) \
+			$(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m))))
+
+# Handle objects in subdirs:
+# - If we encounter foo/ in $(obj-y), replace it by foo/built-in.a and
+#   foo/modules.order
+# - If we encounter foo/ in $(obj-m), replace it by foo/modules.order
+#
+# Generate modules.order to determine modorder. Unfortunately, we don't have
+# information about ordering between -y and -m subdirs. Just put -y's first.
+
+ifdef need-modorder
+obj-m := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m))
+else
+obj-m := $(filter-out %/, $(obj-m))
+endif
 
-# Handle objects in subdirs
-# ---------------------------------------------------------------------------
-# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.a
-#   and add the directory to the list of dirs to descend into: $(subdir-y)
-# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
-#   and add the directory to the list of dirs to descend into: $(subdir-m)
-__subdir-y	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
-subdir-y	+= $(__subdir-y)
-__subdir-m	:= $(patsubst %/,%,$(filter %/, $(obj-m)))
-subdir-m	+= $(__subdir-m)
 ifdef need-builtin
 obj-y		:= $(patsubst %/, %/built-in.a, $(obj-y))
 else
 obj-y		:= $(filter-out %/, $(obj-y))
 endif
-obj-m		:= $(filter-out %/, $(obj-m))
-
-# Subdirectories we need to descend into
-subdir-ym	:= $(sort $(subdir-y) $(subdir-m))
 
 # If $(foo-objs), $(foo-y), $(foo-m), or $(foo-) exists, foo.o is a composite object
 multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))), $(m))))
 multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)) $($(m:.o=-))), $(m))))
 multi-used   := $(multi-used-y) $(multi-used-m)
 
-# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
-# tell kbuild to descend
-subdir-obj-y := $(filter %/built-in.a, $(obj-y))
-
 # Replace multi-part objects by their individual parts,
 # including built-in.a from subdirectories
 real-obj-y := $(foreach m, $(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
@@ -78,10 +83,8 @@ endif
 extra-y		:= $(addprefix $(obj)/,$(extra-y))
 always-y	:= $(addprefix $(obj)/,$(always-y))
 targets		:= $(addprefix $(obj)/,$(targets))
-modorder	:= $(addprefix $(obj)/,$(modorder))
 obj-m		:= $(addprefix $(obj)/,$(obj-m))
 lib-y		:= $(addprefix $(obj)/,$(lib-y))
-subdir-obj-y	:= $(addprefix $(obj)/,$(subdir-obj-y))
 real-obj-y	:= $(addprefix $(obj)/,$(real-obj-y))
 real-obj-m	:= $(addprefix $(obj)/,$(real-obj-m))
 multi-used-m	:= $(addprefix $(obj)/,$(multi-used-m))
@@ -149,6 +152,16 @@ _c_flags += $(if $(patsubst n%,, \
 	$(CFLAGS_KCOV))
 endif
 
+#
+# Enable KCSAN flags except some files or directories we don't want to check
+# (depends on variables KCSAN_SANITIZE_obj.o, KCSAN_SANITIZE)
+#
+ifeq ($(CONFIG_KCSAN),y)
+_c_flags += $(if $(patsubst n%,, \
+	$(KCSAN_SANITIZE_$(basetarget).o)$(KCSAN_SANITIZE)y), \
+	$(CFLAGS_KCSAN))
+endif
+
 # $(srctree)/$(src) for including checkin headers from generated source files
 # $(objtree)/$(obj) for including generated headers from checkin source files
 ifeq ($(KBUILD_EXTMOD),)
@@ -171,22 +184,22 @@ modkern_aflags = $(if $(part-of-module),				\
 			$(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE),	\
 			$(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL))
 
-c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+c_flags        = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
 		 -include $(srctree)/include/linux/compiler_types.h       \
 		 $(_c_flags) $(modkern_cflags)                           \
 		 $(basename_flags) $(modname_flags)
 
-a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+a_flags        = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
 		 $(_a_flags) $(modkern_aflags)
 
-cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+cpp_flags      = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
 		 $(_cpp_flags)
 
 ld_flags       = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
 
 DTC_INCLUDE    := $(srctree)/scripts/dtc/include-prefixes
 
-dtc_cpp_flags  = -Wp,-MD,$(depfile).pre.tmp -nostdinc                    \
+dtc_cpp_flags  = -Wp,-MMD,$(depfile).pre.tmp -nostdinc                    \
 		 $(addprefix -I,$(DTC_INCLUDE))                          \
 		 -undef -D__DTS__
 
@@ -241,7 +254,7 @@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 # ---------------------------------------------------------------------------
 
 quiet_cmd_gzip = GZIP    $@
-      cmd_gzip = cat $(real-prereqs) | gzip -n -f -9 > $@
+      cmd_gzip = cat $(real-prereqs) | $(KGZIP) -n -f -9 > $@
 
 # DTC
 # ---------------------------------------------------------------------------
@@ -287,13 +300,13 @@ $(obj)/%.dtb.S: $(obj)/%.dtb FORCE
 quiet_cmd_dtc = DTC     $@
 cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
 	$(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
-	$(DTC) -O $(2) -o $@ -b 0 \
+	$(DTC) -O $(patsubst .%,%,$(suffix $@)) -o $@ -b 0 \
 		$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
 		-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,dtb)
+	$(call if_changed_dep,dtc)
 
 DT_CHECKER ?= dt-validate
 DT_BINDING_DIR := Documentation/devicetree/bindings
@@ -304,7 +317,7 @@ quiet_cmd_dtb_check =	CHECK   $@
       cmd_dtb_check =	$(DT_CHECKER) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@
 
 define rule_dtc
-	$(call cmd_and_fixdep,dtc,yaml)
+	$(call cmd_and_fixdep,dtc)
 	$(call cmd,dtb_check)
 endef
 
@@ -334,19 +347,19 @@ printf "%08x\n" $$dec_size |						\
 )
 
 quiet_cmd_bzip2 = BZIP2   $@
-      cmd_bzip2 = { cat $(real-prereqs) | bzip2 -9; $(size_append); } > $@
+      cmd_bzip2 = { cat $(real-prereqs) | $(KBZIP2) -9; $(size_append); } > $@
 
 # Lzma
 # ---------------------------------------------------------------------------
 
 quiet_cmd_lzma = LZMA    $@
-      cmd_lzma = { cat $(real-prereqs) | lzma -9; $(size_append); } > $@
+      cmd_lzma = { cat $(real-prereqs) | $(LZMA) -9; $(size_append); } > $@
 
 quiet_cmd_lzo = LZO     $@
-      cmd_lzo = { cat $(real-prereqs) | lzop -9; $(size_append); } > $@
+      cmd_lzo = { cat $(real-prereqs) | $(KLZOP) -9; $(size_append); } > $@
 
 quiet_cmd_lz4 = LZ4     $@
-      cmd_lz4 = { cat $(real-prereqs) | lz4c -l -c1 stdin stdout; \
+      cmd_lz4 = { cat $(real-prereqs) | $(LZ4) -l -c1 stdin stdout; \
                   $(size_append); } > $@
 
 # U-Boot mkimage
@@ -393,7 +406,7 @@ quiet_cmd_xzkern = XZKERN  $@
                      $(size_append); } > $@
 
 quiet_cmd_xzmisc = XZMISC  $@
-      cmd_xzmisc = cat $(real-prereqs) | xz --check=crc32 --lzma2=dict=1MiB > $@
+      cmd_xzmisc = cat $(real-prereqs) | $(XZ) --check=crc32 --lzma2=dict=1MiB > $@
 
 # ASM offsets
 # ---------------------------------------------------------------------------
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 957eed6a17a5..3651cbf6ad49 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -43,34 +43,30 @@ __modpost:
 include include/config/auto.conf
 include scripts/Kbuild.include
 
-kernelsymfile := $(objtree)/Module.symvers
-modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers
-
 MODPOST = scripts/mod/modpost								\
 	$(if $(CONFIG_MODVERSIONS),-m)							\
 	$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a)					\
-	$(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile)					\
-	$(if $(KBUILD_EXTMOD),$(addprefix -e ,$(KBUILD_EXTRA_SYMBOLS)))			\
-	$(if $(KBUILD_EXTMOD),-o $(modulesymfile))					\
 	$(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E)					\
-	$(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) 	\
-	$(if $(KBUILD_MODPOST_WARN),-w)
+	$(if $(KBUILD_MODPOST_WARN),-w) \
+	-o $@
 
 ifdef MODPOST_VMLINUX
 
-quiet_cmd_modpost = MODPOST vmlinux.o
-      cmd_modpost = $(MODPOST) vmlinux.o
+quiet_cmd_modpost = MODPOST $@
+      cmd_modpost = $(MODPOST) $<