Merge tag 'kbuild-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - add more Build-Depends to Debian source package

 - prefix header search paths with $(srctree)/

 - make modpost show verbose section mismatch warnings

 - avoid hard-coded CROSS_COMPILE for h8300

 - fix regression for Debian make-kpkg command

 - add semantic patch to detect missing put_device()

 - fix some warnings of 'make deb-pkg'

 - optimize NOSTDINC_FLAGS evaluation

 - add warnings about redundant generic-y

 - clean up Makefiles and scripts

* tag 'kbuild-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: remove stale lxdialog/.gitignore
  kbuild: force all architectures except um to include mandatory-y
  kbuild: warn redundant generic-y
  Revert "modsign: Abort modules_install when signing fails"
  kbuild: Make NOSTDINC_FLAGS a simply expanded variable
  kbuild: deb-pkg: avoid implicit effects
  coccinelle: semantic code search for missing put_device()
  kbuild: pkg: grep include/config/auto.conf instead of $KCONFIG_CONFIG
  kbuild: deb-pkg: introduce is_enabled and if_enabled_echo to builddeb
  kbuild: deb-pkg: add CONFIG_ prefix to kernel config options
  kbuild: add workaround for Debian make-kpkg
  kbuild: source include/config/auto.conf instead of ${KCONFIG_CONFIG}
  unicore32: simplify linker script generation for decompressor
  h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-
  kbuild: move archive command to scripts/Makefile.lib
  modpost: always show verbose warning for section mismatch
  ia64: prefix header search path with $(srctree)/
  libfdt: prefix header search paths with $(srctree)/
  deb-pkg: generate correct build dependencies

57 files changed, 153 insertions, 156 deletions

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index f124be6e4c3a..03c065855eaf 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1274,7 +1274,7 @@ See subsequent chapter for the syntax of the Kbuild file.
 
 --- 7.4 mandatory-y
 
-	mandatory-y is essentially used by include/(uapi/)asm-generic/Kbuild.asm
+	mandatory-y is essentially used by include/(uapi/)asm-generic/Kbuild
 	to define the minimum set of ASM headers that all architectures must have.
 
 	This works like optional generic-y. If a mandatory header is missing
diff --git a/Makefile b/Makefile
index 9ef547fc7ffe..4f45ae628f54 100644
--- a/Makefile
+++ b/Makefile
@@ -31,6 +31,16 @@ _all:
 # descending is started. They are now explicitly listed as the
 # prepare rule.
 
+# Ugly workaround for Debian make-kpkg:
+# make-kpkg directly includes the top Makefile of Linux kernel. In such a case,
+# skip sub-make to support debian_* targets in ruleset/kernel_version.mk, but
+# displays warning to discourage such abusage.
+ifneq ($(word 2, $(MAKEFILE_LIST)),)
+$(warning Do not include top Makefile of Linux Kernel)
+sub-make-done := 1
+MAKEFLAGS += -rR
+endif
+
 ifneq ($(sub-make-done),1)
 
 # Do not use make's built-in rules and variables
@@ -402,7 +412,7 @@ CHECK		= sparse
 
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
-NOSTDINC_FLAGS  =
+NOSTDINC_FLAGS :=
 CFLAGS_MODULE   =
 AFLAGS_MODULE   =
 LDFLAGS_MODULE  =
@@ -1088,9 +1098,11 @@ asm-generic := -f $(srctree)/scripts/Makefile.asm-generic obj
 
 PHONY += asm-generic uapi-asm-generic
 asm-generic: uapi-asm-generic
-	$(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/asm
+	$(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/asm \
+	generic=include/asm-generic
 uapi-asm-generic:
-	$(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/uapi/asm
+	$(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/uapi/asm \
+	generic=include/uapi/asm-generic
 
 PHONY += prepare-objtool
 prepare-objtool: $(objtool_target)
diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild
index 439f5157aa35..7417847dc438 100644
--- a/arch/alpha/include/uapi/asm/Kbuild
+++ b/arch/alpha/include/uapi/asm/Kbuild
@@ -1,3 +1 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
index 0febf1a07c30..755bb11323d8 100644
--- a/arch/arc/include/uapi/asm/Kbuild
+++ b/arch/arc/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 1d66db9c9db5..a8a4eb7f6dae 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -18,7 +18,6 @@ generic-y += segment.h
 generic-y += serial.h
 generic-y += simd.h
 generic-y += sizes.h
-generic-y += timex.h
 generic-y += trace_clock.h
 
 generated-y += mach-types.h
diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
index eee8f7d23899..23b4464c0995 100644
--- a/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-include include/uapi/asm-generic/Kbuild.asm
 
 generated-y += unistd-common.h
 generated-y += unistd-oabi.h
diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
index 87eea29b24ab..602d137932dc 100644
--- a/arch/arm64/include/uapi/asm/Kbuild
+++ b/arch/arm64/include/uapi/asm/Kbuild
@@ -1,4 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0
-include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += kvm_para.h
diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild
index 0febf1a07c30..755bb11323d8 100644
--- a/arch/c6x/include/uapi/asm/Kbuild
+++ b/arch/c6x/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/csky/include/uapi/asm/Kbuild b/arch/csky/include/uapi/asm/Kbuild
index c1b06dcf6cf8..1c72f04ff75d 100644
--- a/arch/csky/include/uapi/asm/Kbuild
+++ b/arch/csky/include/uapi/asm/Kbuild
@@ -1,3 +1 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += ucontext.h
diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile
index f801f3708a89..ba0f26cfad61 100644
--- a/arch/h8300/Makefile
+++ b/arch/h8300/Makefile
@@ -27,7 +27,7 @@ KBUILD_LDFLAGS += $(ldflags-y)
 CHECKFLAGS += -msize-long
 
 ifeq ($(CROSS_COMPILE),)
-CROSS_COMPILE := h8300-unknown-linux-
+CROSS_COMPILE := $(call cc-cross-prefix, h8300-unknown-linux- h8300-linux-)
 endif
 
 core-y	+= arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index 961c1dc064e1..3e7c8ecf151e 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -17,7 +17,6 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
-generic-y += hash.h
 generic-y += hw_irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
index 0febf1a07c30..755bb11323d8 100644
--- a/arch/h8300/include/uapi/asm/Kbuild
+++ b/arch/h8300/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/hexagon/include/uapi/asm/Kbuild b/arch/hexagon/include/uapi/asm/Kbuild
index c1b06dcf6cf8..1c72f04ff75d 100644
--- a/arch/hexagon/include/uapi/asm/Kbuild
+++ b/arch/hexagon/include/uapi/asm/Kbuild
@@ -1,3 +1 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += ucontext.h
diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
index b71c5f787783..20018cb883a9 100644
--- a/arch/ia64/include/uapi/asm/Kbuild
+++ b/arch/ia64/include/uapi/asm/Kbuild
@@ -1,5 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_64.h
 generic-y += kvm_para.h
-generic-y += socket.h
diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile
index d27df1d45da7..9c349dd23265 100644
--- a/arch/ia64/sn/kernel/Makefile
+++ b/arch/ia64/sn/kernel/Makefile
@@ -7,7 +7,7 @@
 # Copyright (C) 1999,2001-2006,2008 Silicon Graphics, Inc.  All Rights Reserved.
 #
 
-ccflags-y := -Iarch/ia64/sn/include
+ccflags-y := -I $(srctree)/arch/ia64/sn/include
 
 obj-y				+= setup.o bte.o bte_error.o irq.o mca.o idle.o \
 				   huberror.o io_acpi_init.o io_common.o \
diff --git a/arch/ia64/sn/kernel/sn2/Makefile b/arch/ia64/sn/kernel/sn2/Makefile
index 3d09108d4277..170bde4549da 100644
--- a/arch/ia64/sn/kernel/sn2/Makefile
+++ b/arch/ia64/sn/kernel/sn2/Makefile
@@ -9,7 +9,5 @@
 # sn2 specific kernel files
 #
 
-ccflags-y := -Iarch/ia64/sn/include
-
 obj-y += cache.o io.o ptc_deadlock.o sn2_smp.o sn_proc_fs.o \
 	 prominfo_proc.o timer.o timer_interrupt.o sn_hwperf.o
diff --git a/arch/ia64/sn/pci/Makefile b/arch/ia64/sn/pci/Makefile
index df2a90145426..321576b1b425 100644
--- a/arch/ia64/sn/pci/Makefile
+++ b/arch/ia64/sn/pci/Makefile
@@ -7,6 +7,4 @@
 #
 # Makefile for the sn pci general routines.
 
-ccflags-y := -Iarch/ia64/sn/include
-
 obj-y := pci_dma.o tioca_provider.o tioce_provider.o pcibr/
diff --git a/arch/ia64/sn/pci/pcibr/Makefile b/arch/ia64/sn/pci/pcibr/Makefile
index 396bcae36309..712f6af7c6e0 100644
--- a/arch/ia64/sn/pci/pcibr/Makefile
+++ b/arch/ia64/sn/pci/pcibr/Makefile
@@ -7,7 +7,7 @@
 #
 # Makefile for the sn2 io routines.
 
-ccflags-y := -Iarch/ia64/sn/include
+ccflags-y := -I $(srctree)/arch/ia64/sn/include
 
 obj-y				+=  pcibr_dma.o pcibr_reg.o \
 				    pcibr_ate.o pcibr_provider.o
diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
index 960bf1e4be53..8a7ad40be463 100644
--- a/arch/m68k/include/uapi/asm/Kbuild
+++ b/arch/m68k/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generic-y += kvm_para.h
diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
index 97823ec46e97..3ce84fbb2678 100644
--- a/arch/microblaze/include/uapi/asm/Kbuild
+++ b/arch/microblaze/include/uapi/asm/Kbuild
@@ -1,5 +1,3 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/mips/include/uapi/asm/Kbuild b/arch/mips/include/uapi/asm/Kbuild
index 0851c103a8ce..c3798bfe0486 100644
--- a/arch/mips/include/uapi/asm/Kbuild
+++ b/arch/mips/include/uapi/asm/Kbuild
@@ -1,5 +1,3 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_n32.h
 generated-y += unistd_n64.h
 generated-y += unistd_o32.h
diff --git a/arch/nds32/include/uapi/asm/Kbuild b/arch/nds32/include/uapi/asm/Kbuild
index c1b06dcf6cf8..1c72f04ff75d 100644
--- a/arch/nds32/include/uapi/asm/Kbuild
+++ b/arch/nds32/include/uapi/asm/Kbuild
@@ -1,3 +1 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += ucontext.h
diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
index 0febf1a07c30..755bb11323d8 100644
--- a/arch/nios2/include/uapi/asm/Kbuild
+++ b/arch/nios2/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 1f04844b6b82..5a73e2956ac4 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -15,7 +15,6 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
@@ -35,7 +34,6 @@ generic-y += qrwlock.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += shmparam.h
-generic-y += string.h
 generic-y += switch_to.h
 generic-y += topology.h
 generic-y += trace_clock.h
diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild
index 0febf1a07c30..755bb11323d8 100644
--- a/arch/openrisc/include/uapi/asm/Kbuild
+++ b/arch/openrisc/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 0b1e354c8c24..6f49e77d82a2 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,7 +1,6 @@
 generated-y += syscall_table_32.h
 generated-y += syscall_table_64.h
 generated-y += syscall_table_c32.h
-generic-y += barrier.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
@@ -20,7 +19,6 @@ generic-y += percpu.h
 generic-y += preempt.h
 generic-y += seccomp.h
 generic-y += segment.h
-generic-y += topology.h
 generic-y += trace_clock.h
 generic-y += user.h
 generic-y += vga.h
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index c54353d390ff..22fdbd08cdc8 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -1,5 +1,3 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generated-y += unistd_64.h
 generic-y += kvm_para.h
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 77ff7fb24823..a0c132bedfae 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -5,7 +5,6 @@ generated-y += syscall_table_spu.h
 generic-y += div64.h
 generic-y += export.h
 generic-y += irq_regs.h
-generic-y += irq_work.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
index 214a39acdf25..2bd5b392277c 100644
--- a/arch/powerpc/include/uapi/asm/Kbuild
+++ b/arch/powerpc/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generated-y += unistd_64.h
diff --git a/arch/riscv/include/uapi/asm/Kbuild b/arch/riscv/include/uapi/asm/Kbuild
index d2ee86b4c091..e69de29bb2d1 100644
--- a/arch/riscv/include/uapi/asm/Kbuild
+++ b/arch/riscv/include/uapi/asm/Kbuild
@@ -1 +0,0 @@
-include include/uapi/asm-generic/Kbuild.asm
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 11ca8795b74a..c844eaf24ed7 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -57,9 +57,6 @@ $(obj)/section_cmp%: vmlinux $(obj)/compressed/vmlinux FORCE
 $(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
 	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
 
-quiet_cmd_ar = AR      $@
-      cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
-
 $(obj)/startup.a: $(OBJECTS) FORCE
 	$(call if_changed,ar)
 
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index e3239772887a..12d77cb11fe5 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -20,7 +20,6 @@ generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += preempt.h
 generic-y += rwsem.h
 generic-y += trace_clock.h
 generic-y += unaligned.h
diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
index 6b0f30b14642..46c1ff0b842a 100644
--- a/arch/s390/include/uapi/asm/Kbuild
+++ b/arch/s390/include/uapi/asm/Kbuild
@@ -1,6 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-include include/uapi/asm-generic/Kbuild.asm
 
 generated-y += unistd_32.h
 generated-y += unistd_64.h
-generic-y += socket.h
diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild
index eaa30bcd93bf..ecfbd40924dd 100644
--- a/arch/sh/include/uapi/asm/Kbuild
+++ b/arch/sh/include/uapi/asm/Kbuild
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-include include/uapi/asm-generic/Kbuild.asm
 
 generated-y += unistd_32.h
 generic-y += kvm_para.h
diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
index 214a39acdf25..2bd5b392277c 100644
--- a/arch/sparc/include/uapi/asm/Kbuild
+++ b/arch/sparc/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generated-y += unistd_64.h
diff --git a/arch/unicore32/boot/compressed/Makefile b/arch/unicore32/boot/compressed/Makefile
index 9aecdd3ddc48..150fafc32fb0 100644
--- a/arch/unicore32/boot/compressed/Makefile
+++ b/arch/unicore32/boot/compressed/Makefile
@@ -61,7 +61,4 @@ $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/head.o $(obj)/piggy.o \
 ZTEXTADDR	:= 0x03000000
 ZBSSADDR	:= ALIGN(4)
 
-SEDFLAGS_lds	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
-$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/unicore32/boot/Makefile $(KCONFIG_CONFIG)
-	@sed "$(SEDFLAGS_lds)" < $< > $@
-
+CPPFLAGS_vmlinux.lds = -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
diff --git a/arch/unicore32/boot/compressed/vmlinux.lds.in b/arch/unicore32/boot/compressed/vmlinux.lds.S
index d5a3ce296239..d5a3ce296239 100644
--- a/arch/unicore32/boot/compressed/vmlinux.lds.in
+++ b/arch/unicore32/boot/compressed/vmlinux.lds.S
diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
index 0febf1a07c30..755bb11323d8 100644
--- a/arch/unicore32/include/uapi/asm/Kbuild
+++ b/arch/unicore32/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generic-y += kvm_para.h
 generic-y += ucontext.h
diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
index efe701b7c6ce..59b5ad310f78 100644
--- a/arch/x86/include/uapi/asm/Kbuild
+++ b/arch/x86/include/uapi/asm/Kbuild
@@ -1,6 +1,3 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generated-y += unistd_64.h
 generated-y += unistd_x32.h
-generic-y += socket.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index d939e13e8d84..42b6cb3d16f7 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -15,7 +15,6 @@ generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
 generic-y += kprobes.h
-generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
index 6b43e5049ff7..8a7ad40be463 100644
--- a/arch/xtensa/include/uapi/asm/Kbuild
+++ b/arch/xtensa/include/uapi/asm/Kbuild
@@ -1,5 +1,2 @@
-include include/uapi/asm-generic/Kbuild.asm
-
 generated-y += unistd_32.h
 generic-y += kvm_para.h
-generic-y += socket.h
diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild
new file mode 100644
index 000000000000..6f4536d70b8e
--- /dev/null
+++ b/include/asm-generic/Kbuild
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# asm headers that all architectures except um should have
+# (This file is not included when SRCARCH=um since UML borrows several
+# asm headers from the host architecutre.)
diff --git a/include/uapi/asm-generic/Kbuild.asm b/include/uapi/asm-generic/Kbuild
index 355c4ac2c0b0..ebb180aac74e 100644
--- a/include/uapi/asm-generic/Kbuild.asm
+++ b/include/uapi/asm-generic/Kbuild
@@ -1,6 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Headers that are mandatory in usr/include/asm/
-#
+# (This file is not included when SRCARCH=um since UML does not support UAPI.)
+
 mandatory-y += auxvec.h
 mandatory-y += bitsperlong.h
 mandatory-y += bpf_perf_event.h
diff --git a/lib/Makefile b/lib/Makefile
index 4e066120a0d6..3b08673e8881 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -213,7 +213,7 @@ KCOV_INSTRUMENT_stackdepot.o := n
 libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
 	       fdt_empty_tree.o
 $(foreach file, $(libfdt_files), \
-	$(eval CFLAGS_$(file) = -I$(src)/../scripts/dtc/libfdt))
+	$(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt))
 lib-$(CONFIG_LIBFDT) += $(libfdt_files)
 
 obj-$(CONFIG_RBTREE_TEST) += rbtree_test.o
diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index a62d2823f6cf..82ad63dcd62b 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -12,8 +12,19 @@ all:
 src := $(subst /generated,,$(obj))
 -include $(src)/Kbuild
 
+# $(generic)/Kbuild lists mandatory-y. Exclude um since it is a special case.
+ifneq ($(SRCARCH),um)
+include $(generic)/Kbuild
+endif
+
 include scripts/Kbuild.include
 
+redundant := $(filter $(mandatory-y) $(generated-y), $(generic-y))
+redundant += $(foreach f, $(generic-y), $(if $(wildcard $(srctree)/$(src)/$(f)),$(f)))
+redundant := $(sort $(redundant))
+$(if $(redundant),\
+	$(warning redundant generic-y found in $(src)/Kbuild: $(redundant)))
+
 # If arch does not implement mandatory headers, fallback to asm-generic ones.
 mandatory-y := $(filter-out $(generated-y), $(mandatory-y))
 generic-y   += $(foreach f, $(mandatory-y), $(if $(wildcard $(srctree)/$(src)/$(f)),,$(f)))
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 850b611f4aba..2554a15ecf2b 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -426,13 +426,9 @@ $(modorder-target): $(subdir-ym) FORCE
 # Rule to compile a set of .o files into one .a file (with symbol table)
 #
 ifdef lib-target
-quiet_cmd_link_l_target = AR      $@
-
-# lib target archives do get a symbol table and index
-cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
 
 $(lib-target): $(lib-y) FORCE
-	$(call if_changed,link_l_target)
+	$(call if_changed,ar)
 
 targets += $(lib-target)
 
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index c0abd9a779c3..8a1f64f17740 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -233,6 +233,12 @@ $(obj)/%: $(src)/%_shipped
 quiet_cmd_ld = LD      $@
       cmd_ld = $(LD) $(ld_flags) $(real-prereqs) -o $@
 
+# Archive
+# ---------------------------------------------------------------------------
+
+quiet_cmd_ar = AR      $@
+      cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
+
 # Objcopy
 # ---------------------------------------------------------------------------
 
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index ff5ca9817a85..0dae402661f3 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -23,7 +23,7 @@ quiet_cmd_modules_install = INSTALL $@
     mkdir -p $(2) ; \
     cp $@ $(2) ; \
     $(mod_strip_cmd) $(2)/$(notdir $@) ; \
-    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) && \
+    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) ; \
     $(mod_compress_cmd) $(2)/$(notdir $@)
 
 # Modules built outside the kernel source tree go into extra by default
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index c0b7f526f95e..6b7f354f189a 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -77,7 +77,6 @@ modpost = scripts/mod/modpost                    \
  $(if $(KBUILD_EXTMOD),-I $(modulesymfile))      \
  $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(KBUILD_EXTRA_SYMBOLS))) \
  $(if $(KBUILD_EXTMOD),-o $(modulesymfile))      \
- $(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S)      \
  $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E)  \
  $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w)
 
diff --git a/scripts/adjust_autoksyms.sh b/scripts/adjust_autoksyms.sh
index 6e6d63957da3..84bf6b500815 100755
--- a/scripts/adjust_autoksyms.sh
+++ b/scripts/adjust_autoksyms.sh
@@ -39,14 +39,7 @@ case "$KBUILD_VERBOSE" in
 esac
 
 # We need access to CONFIG_ symbols
-case "${KCONFIG_CONFIG}" in
-*/*)
-	. "${KCONFIG_CONFIG}"
-	;;
-*)
-	# Force using a file from the current directory
-	. "./${KCONFIG_CONFIG}"
-esac
+. include/config/auto.conf
 
 # Generate a new ksym list file with symbols needed by the current
 # set of modules.
diff --git a/scripts/coccinelle/free/put_device.cocci b/scripts/coccinelle/free/put_device.cocci
new file mode 100644
index 000000000000..7395697e7f19
--- /dev/null
+++ b/scripts/coccinelle/free/put_device.cocci
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/// Find missing put_device for every of_find_device_by_node.
+///
+// Confidence: Moderate
+// Copyright: (C) 2018-2019 Wen Yang, ZTE.
+// Comments:
+// Options: --no-includes --include-headers
+
+virtual report
+virtual org
+
+@search exists@
+local idexpression id;
+expression x,e,e1;
+position p1,p2;
+type T,T1,T2,T3;
+@@
+
+id = of_find_device_by_node@p1(x)
+... when != e = id
+if (id == NULL || ...) { ... return ...; }
+... when != put_device(&id->dev)
+    when != platform_device_put(id)
+    when != of_dev_put(id)
+    when != if (id) { ... put_device(&id->dev) ... }
+    when != e1 = (T)id
+    when != e1 = &id->dev
+    when != e1 = get_device(&id->dev)
+    when != e1 = (T1)platform_get_drvdata(id)
+(
+  return
+(    id
+|    (T2)dev_get_drvdata(&id->dev)
+|    (T3)platform_get_drvdata(id)
+);
+| return@p2 ...;
+)
+
+@script:python depends on report@
+p1 << search.p1;
+p2 << search.p2;
+@@
+
+coccilib.report.print_report(p2[0], "ERROR: missing put_device; "
+			      + "call of_find_device_by_node on line "
+			      + p1[0].line
+			      + ", but without a corresponding object release "
+			      + "within this function.")
+
+@script:python depends on org@
+p1 << search.p1;
+p2 << search.p2;
+@@
+
+cocci.print_main("of_find_device_by_node", p1)
+cocci.print_secs("needed put_device", p2)
diff --git a/scripts/kconfig/lxdialog/.gitignore b/scripts/kconfig/lxdialog/.gitignore
deleted file mode 100644
index 90b08ff025a6..000000000000
--- a/scripts/kconfig/lxdialog/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-#
-# Generated files
-#
-lxdialog
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index bc7f1fc1f55b..dc0e8c5a1402 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -171,14 +171,7 @@ if [ "$1" = "clean" ]; then
 fi
 
 # We need access to CONFIG_ symbols
-case "${KCONFIG_CONFIG}" in
-*/*)
-	. "${KCONFIG_CONFIG}"
-	;;
-*)
-	# Force using a file from the current directory
-	. "./${KCONFIG_CONFIG}"
-esac
+. include/config/auto.conf
 
 # Update version
 info GEN .version
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 26bf886bd168..0b0d1080b1c5 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -35,7 +35,6 @@ static int vmlinux_section_warnings = 1;
 static int warn_unresolved = 0;
 /* How a symbol is exported */
 static int sec_mismatch_count = 0;
-static int sec_mismatch_verbose = 1;
 static int sec_mismatch_fatal = 0;
 /* ignore missing files */
 static int ignore_missing_files;
@@ -1406,8 +1405,6 @@ static void report_sec_mismatch(const char *modname,
 	char *prl_to;
 
 	sec_mismatch_count++;
-	if (!sec_mismatch_verbose)
-		return;
 
 	get_pretty_name(from_is_func, &from, &from_p);
 	get_pretty_name(to_is_func, &to, &to_p);
@@ -1655,9 +1652,7 @@ static void extable_mismatch_handler(const char* modname, struct elf_info *elf,
 
 	sec_mismatch_count++;
 
-	if (sec_mismatch_verbose)
-		report_extable_warnings(modname, elf, mismatch, r, sym,
-					fromsec, tosec);
+	report_extable_warnings(modname, elf, mismatch, r, sym, fromsec, tosec);
 
 	if (match(tosec, mismatch->bad_tosec))
 		fatal("The relocation at %s+0x%lx references\n"
@@ -2433,7 +2428,7 @@ int main(int argc, char **argv)
 	struct ext_sym_list *extsym_iter;
 	struct ext_sym_list *extsym_start = NULL;
 
-	while ((opt = getopt(argc, argv, "i:I:e:mnsST:o:awE")) != -1) {
+	while ((opt = getopt(argc, argv, "i:I:e:mnsT:o:awE")) != -1) {
 		switch (opt) {
 		case 'i':
 			kernel_read = optarg;
@@ -2465,9 +2460,6 @@ int main(int argc, char **argv)
 		case 's':
 			vmlinux_section_warnings = 0;
 			break;
-		case 'S':
-			sec_mismatch_verbose = 0;
-			break;
 		case 'T':
 			files_source = optarg;
 			break;
@@ -2525,18 +2517,9 @@ int main(int argc, char **argv)
 	}
 	if (dump_write)
 		write_dump(dump_write);
-	if (sec_mismatch_count) {
-		if (!sec_mismatch_verbose) {
-			warn("modpost: Found %d section mismatch(es).\n"
-			     "To see full details build your kernel with:\n"
-			     "'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n",
-			     sec_mismatch_count);
-		}
-		if (sec_mismatch_fatal) {
-			fatal("modpost: Section mismatches detected.\n"
-			      "Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.\n");
-		}
-	}
+	if (sec_mismatch_count && sec_mismatch_fatal)
+		fatal("modpost: Section mismatches detected.\n"
+		      "Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.\n");
 	free(buf.p);
 
 	return err;
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 8ac25d10a6ad..b03dd56a4782 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -12,6 +12,18 @@
 
 set -e
 
+is_enabled() {
+	grep -q "^$1=y" include/config/auto.conf
+}
+
+if_enabled_echo() {
+	if is_enabled "$1"; then
+		echo -n "$2"
+	elif [ $# -ge 3 ]; then
+		echo -n "$3"
+	fi
+}
+
 create_package() {
 	local pname="$1" pdir="$2"
 
@@ -62,7 +74,7 @@ parisc|mips|powerpc)
 	installed_image_path="boot/vmlinuz-$version"
 esac
 
-BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
+BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
 
 # Setup the directory structure
 rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
@@ -83,14 +95,14 @@ else
 fi
 cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
 
-if grep -q "^CONFIG_OF_EARLY_FLATTREE=y" $KCONFIG_CONFIG ; then
+if is_enabled CONFIG_OF_EARLY_FLATTREE; then
 	# Only some architectures with OF support have this target
 	if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
 		$MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
 	fi
 fi
 
-if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
+if is_enabled CONFIG_MODULES; then
 	INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install
 	rm -f "$tmpdir/lib/modules/$version/build"
 	rm -f "$tmpdir/lib/modules/$version/source"
@@ -111,8 +123,7 @@ if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
 		done
 
 		# resign stripped modules
-		MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)"
-		if [ -n "$MODULE_SIG_ALL" ]; then
+		if is_enabled CONFIG_MODULE_SIG_ALL; then
 			INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign
 		fi
 	fi
@@ -129,11 +140,6 @@ fi
 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
 # so do we; recent versions of dracut and initramfs-tools will obey this.
 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
-if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then
-	want_initrd=Yes
-else
-	want_initrd=No
-fi
 for script in postinst postrm preinst prerm ; do
 	mkdir -p "$tmpdir$debhookdir/$script.d"
 	cat <<EOF > "$tmpdir/DEBIAN/$script"
@@ -145,7 +151,7 @@ set -e
 export DEB_MAINT_PARAMS="\$*"
 
 # Tell initramfs builder whether it's wanted
-export INITRD=$want_initrd
+export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
 
 test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
 exit 0
@@ -158,11 +164,11 @@ done
 (cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles"
 (cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
 (cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
-if grep -q '^CONFIG_STACK_VALIDATION=y' $KCONFIG_CONFIG ; then
+if is_enabled CONFIG_STACK_VALIDATION; then
 	(cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"
 fi
 (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
-if grep -q '^CONFIG_GCC_PLUGINS=y' $KCONFIG_CONFIG ; then
+if is_enabled CONFIG_GCC_PLUGINS; then
 	(cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"
 fi
 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index cfd2a4a3fe42..2f66c81e4021 100755
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -56,7 +56,7 @@ dirs=boot
 #
 # Try to install modules
 #
-if grep -q '^CONFIG_MODULES=y' "${KCONFIG_CONFIG}"; then
+if grep -q '^CONFIG_MODULES=y' include/config/auto.conf; then
 	make ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_MOD_PATH="${tmpdir}" modules_install
 	dirs="$dirs lib"
 fi
diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index f030961c5165..8351584cb24e 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -7,7 +7,7 @@
 set -e
 
 is_enabled() {
-	grep -q "^CONFIG_$1=y" $KCONFIG_CONFIG
+	grep -q "^$1=y" include/config/auto.conf
 }
 
 if_enabled_echo() {
@@ -31,23 +31,23 @@ set_debarch() {
 	x86_64)
 		debarch=amd64 ;;
 	sparc*)
-		debarch=sparc$(if_enabled_echo 64BIT 64) ;;
+		debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;;
 	s390*)
 		debarch=s390x ;;
 	ppc*)
-		if is_enabled 64BIT; then
-			debarch=ppc64$(if_enabled_echo CPU_LITTLE_ENDIAN el)
+		if is_enabled CONFIG_64BIT; then
+			debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el)
 		else
-			debarch=powerpc$(if_enabled_echo SPE spe)
+			debarch=powerpc$(if_enabled_echo CONFIG_SPE spe)
 		fi
 		;;
 	parisc*)
 		debarch=hppa ;;
 	mips*)
-		if is_enabled CPU_LITTLE_ENDIAN; then
-			debarch=mips$(if_enabled_echo 64BIT 64)$(if_enabled_echo CPU_MIPSR6 r6)el
-		elif is_enabled CPU_MIPSR6; then
-			debarch=mips$(if_enabled_echo 64BIT 64)r6
+		if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then
+			debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el
+		elif is_enabled CONFIG_CPU_MIPSR6; then
+			debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6
 		else
 			debarch=mips
 		fi
@@ -55,8 +55,8 @@ set_debarch() {
 	aarch64|arm64)
 		debarch=arm64 ;;
 	arm*)
-		if is_enabled AEABI; then
-			debarch=arm$(if_enabled_echo VFP hf el)
+		if is_enabled CONFIG_AEABI; then
+			debarch=arm$(if_enabled_echo CONFIG_VFP hf el)
 		else
 			debarch=arm
 		fi
@@ -64,10 +64,10 @@ set_debarch() {
 	openrisc)
 		debarch=or1k ;;
 	sh)
-		if is_enabled CPU_SH3; then
-			debarch=sh3$(if_enabled_echo CPU_BIG_ENDIAN eb)
-		elif is_enabled CPU_SH4; then
-			debarch=sh4$(if_enabled_echo CPU_BIG_ENDIAN eb)
+		if is_enabled CONFIG_CPU_SH3; then
+			debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
+		elif is_enabled CONFIG_CPU_SH4; then
+			debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
 		fi
 		;;
 	esac
@@ -132,8 +132,12 @@ else
         echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
 fi
 
-mkdir -p debian/
+mkdir -p debian/source/
+echo "1.0" > debian/source/format
+
 echo $debarch > debian/arch
+extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev)"
+extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
 
 # Generate a simple changelog template
 cat <<EOF > debian/changelog
@@ -170,7 +174,7 @@ Source: $sourcename
 Section: kernel
 Priority: optional
 Maintainer: $maintainer
-Build-Depends: bc, kmod, cpio
+Build-Depends: bc, kmod, cpio, bison, flex | flex:native $extra_build_depends
 Homepage: http://www.kernel.org/
 
 Package: $packagename
@@ -221,5 +225,6 @@ clean:
 
 binary: binary-arch
 EOF
+chmod +x debian/rules
 
 exit 0