Merge tag 'kconfig-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kconfig consolidation from Masahiro Yamada:
 "Consolidation of Kconfig files by Christoph Hellwig.

  Move the source statements of arch-independent Kconfig files instead
  of duplicating the includes in every arch/$(SRCARCH)/Kconfig"

* tag 'kconfig-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: add a Memory Management options" menu
  kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
  kconfig: use a menu in arch/Kconfig to reduce clutter
  kconfig: include kernel/Kconfig.preempt from init/Kconfig
  Kconfig: consolidate the "Kernel hacking" menu
  kconfig: include common Kconfig files from top-level Kconfig
  kconfig: remove duplicate SWAP symbol defintions
  um: create a proper drivers Kconfig
  um: cleanup Kconfig files
  um: stop abusing KBUILD_KCONFIG

56 files changed, 265 insertions, 992 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 8543bc3c21fe..c6148166a7b4 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -3,6 +3,14 @@
 # General architecture dependent options
 #
 
+#
+# Note: arch/$(SRCARCH)/Kconfig needs to be included first so that it can
+# override the default values in this file.
+#
+source "arch/$(SRCARCH)/Kconfig"
+
+menu "General architecture-dependent options"
+
 config CRASH_CORE
 	bool
 
@@ -734,6 +742,9 @@ config COMPAT_32BIT_TIME
 config ARCH_NO_COHERENT_DMA_MMAP
 	bool
 
+config ARCH_NO_PREEMPT
+	bool
+
 config CPU_NO_EFFICIENT_FFS
 	def_bool n
 
@@ -833,3 +844,5 @@ config REFCOUNT_FULL
 source "kernel/gcov/Kconfig"
 
 source "scripts/gcc-plugins/Kconfig"
+
+endmenu
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 04a4a138ed13..5b4f88363453 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -4,6 +4,7 @@ config ALPHA
 	default y
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_MIGHT_HAVE_PC_SERIO
+	select ARCH_NO_PREEMPT
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select HAVE_AOUT
 	select HAVE_IDE
@@ -74,9 +75,6 @@ config PGTABLE_LEVELS
 	int
 	default 3
 
-source "init/Kconfig"
-source "kernel/Kconfig.freezer"
-
 config AUDIT_ARCH
 	bool
 
@@ -573,8 +571,6 @@ config ARCH_DISCONTIGMEM_ENABLE
 	  or have huge holes in the physical address space for other reasons.
 	  See <file:Documentation/vm/numa.rst> for more.
 
-source "mm/Kconfig"
-
 config NUMA
 	bool "NUMA Support (EXPERIMENTAL)"
 	depends on DISCONTIGMEM && BROKEN
@@ -713,28 +709,11 @@ config SRM_ENV
 	  This driver is also available as a module and will be called
 	  srm_env then.
 
-source "fs/Kconfig.binfmt"
-
 endmenu
 
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/alpha/Kconfig.debug"
-
 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
 # but we also need it if VGA_HOSE is set
 config DUMMY_CONSOLE
 	bool
 	depends on VGA_HOSE
 	default y
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-
diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug
index 5e93dffb818a..b88c7b641d72 100644
--- a/arch/alpha/Kconfig.debug
+++ b/arch/alpha/Kconfig.debug
@@ -1,7 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
 
 config EARLY_PRINTK
 	bool
@@ -39,5 +36,3 @@ config MATHEMU
 	  This option is required for IEEE compliant floating point arithmetic
 	  on the Alpha. The only time you would ever not say Y is to say M in
 	  order to debug the code. Say Y unless you know what you are doing.
-
-endmenu
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 5151d81476a1..6d5eb8267e42 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -97,9 +97,6 @@ config HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	def_bool y
 	depends on ARC_MMU_V4
 
-source "init/Kconfig"
-source "kernel/Kconfig.freezer"
-
 menu "ARC Architecture Configuration"
 
 menu "ARC Platform/SoC/Board"
@@ -551,24 +548,13 @@ config ARC_BUILTIN_DTB_NAME
 	  Set the name of the DTB to embed in the vmlinux binary
 	  Leaving it blank selects the minimal "skeleton" dtb
 
-source "kernel/Kconfig.preempt"
-
-menu "Executable file formats"
-source "fs/Kconfig.binfmt"
-endmenu
-
 endmenu	 # "ARC Architecture Configuration"
 
-source "mm/Kconfig"
-
 config FORCE_MAX_ZONEORDER
 	int "Maximum zone order"
 	default "12" if ARC_HUGEPAGE_16M
 	default "11"
 
-source "net/Kconfig"
-source "drivers/Kconfig"
-
 menu "Bus Support"
 
 config PCI
@@ -589,9 +575,4 @@ source "drivers/pci/Kconfig"
 
 endmenu
 
-source "fs/Kconfig"
-source "arch/arc/Kconfig.debug"
-source "security/Kconfig"
-source "crypto/Kconfig"
-source "lib/Kconfig"
 source "kernel/power/Kconfig"
diff --git a/arch/arc/Kconfig.debug b/arch/arc/Kconfig.debug
index 03da1a6b3072..45add86decd5 100644
--- a/arch/arc/Kconfig.debug
+++ b/arch/arc/Kconfig.debug
@@ -1,7 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
 
 config 16KSTACKS
 	bool "Use 16Kb for kernel stacks instead of 8Kb"
@@ -11,5 +8,3 @@ config 16KSTACKS
 	  This increases the resident kernel footprint and will cause less
 	  threads to run on the system and also increase the pressure
 	  on the VM subsystem for higher order allocations.
-
-endmenu
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0f328d639d51..f69613fd4e68 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -299,10 +299,6 @@ config PGTABLE_LEVELS
 	default 3 if ARM_LPAE
 	default 2
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
 menu "System Type"
 
 config MMU
@@ -1481,8 +1477,6 @@ config ARCH_NR_GPIO
 
 	  If unsure, leave the default value.
 
-source kernel/Kconfig.preempt
-
 config HZ_FIXED
 	int
 	default 200 if ARCH_EBSA110
@@ -1717,8 +1711,6 @@ config ARM_MODULE_PLTS
 	  Disabling this is usually safe for small single-platform
 	  configurations. If unsure, say y.
 
-source "mm/Kconfig"
-
 config FORCE_MAX_ZONEORDER
 	int "Maximum zone order"
 	default "12" if SOC_AM33XX
@@ -2171,12 +2163,6 @@ config KERNEL_MODE_NEON
 
 endmenu
 
-menu "Userspace binary formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
 menu "Power management options"
 
 source "kernel/power/Kconfig"
@@ -2197,23 +2183,10 @@ config ARCH_HIBERNATION_POSSIBLE
 
 endmenu
 
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
 source "drivers/firmware/Kconfig"
 
-source "fs/Kconfig"
-
-source "arch/arm/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
 if CRYPTO
 source "arch/arm/crypto/Kconfig"
 endif
 
-source "lib/Kconfig"
-
 source "arch/arm/kvm/Kconfig"
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 693f84392f1b..b48dc083d1b1 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1,7 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
 
 config ARM_PTDUMP_CORE
 	def_bool n
@@ -1863,5 +1860,3 @@ config PID_IN_CONTEXTIDR
 	  are planning to use hardware trace tools with this kernel.
 
 source "drivers/hwtracing/coresight/Kconfig"
-
-endmenu
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 260ff5da92ac..d0a53cc6293a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -279,10 +279,6 @@ config ARCH_SUPPORTS_UPROBES
 config ARCH_PROC_KCORE_TEXT
 	def_bool y
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
 source "arch/arm64/Kconfig.platforms"
 
 menu "Bus support"
@@ -768,7 +764,6 @@ config HOLES_IN_ZONE
 	def_bool y
 	depends on NUMA
 
-source kernel/Kconfig.preempt
 source kernel/Kconfig.hz
 
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
@@ -806,8 +801,6 @@ config ARCH_WANT_HUGE_PMD_SHARE
 config ARCH_HAS_CACHE_LINE_SIZE
 	def_bool y
 
-source "mm/Kconfig"
-
 config SECCOMP
 	bool "Enable seccomp to safely compute untrusted bytecode"
 	---help---
@@ -1289,10 +1282,6 @@ config DMI
 
 endmenu
 
-menu "Userspace binary formats"
-
-source "fs/Kconfig.binfmt"
-
 config COMPAT
 	bool "Kernel support for 32-bit EL0"
 	depends on ARM64_4K_PAGES || EXPERT
@@ -1316,8 +1305,6 @@ config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
 
-endmenu
-
 menu "Power management options"
 
 source "kernel/power/Kconfig"
@@ -1343,25 +1330,12 @@ source "drivers/cpufreq/Kconfig"
 
 endmenu
 
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
 source "drivers/firmware/Kconfig"
 
 source "drivers/acpi/Kconfig"
 
-source "fs/Kconfig"
-
 source "arch/arm64/kvm/Kconfig"
 
-source "arch/arm64/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
 if CRYPTO
 source "arch/arm64/crypto/Kconfig"
 endif
-
-source "lib/Kconfig"
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index cc6bd559af85..69c9170bdd24 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -1,6 +1,3 @@
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
 
 config ARM64_PTDUMP_CORE
 	def_bool n
@@ -97,5 +94,3 @@ config ARM64_RELOC_TEST
 	tristate "Relocation testing module"
 
 source "drivers/hwtracing/coresight/Kconfig"
-
-endmenu
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index bf59855628ac..a641b0bf1611 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -53,12 +53,8 @@ config C6X_BIG_KERNEL
 
 	  If unsure, say N.
 
-source "init/Kconfig"
-
 # Use the generic interrupt handling code in kernel/irq/
 
-source "kernel/Kconfig.freezer"
-
 config CMDLINE_BOOL
 	bool "Default bootloader kernel arguments"
 
@@ -114,43 +110,6 @@ config KERNEL_RAM_BASE_ADDRESS
 	default 0xe0000000 if SOC_TMS320C6472
 	default 0x80000000
 
-source "mm/Kconfig"
-
-source "kernel/Kconfig.preempt"
-
 source "kernel/Kconfig.hz"
 
 endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-config ACCESS_CHECK
-	bool "Check the user pointer address"
-	default y
-	help
-	  Usually the pointer transfer from user space is checked to see if its
-	  address is in the kernel space.
-
-	  Say N here to disable that check to improve the performance.
-
-endmenu
diff --git a/arch/c6x/Kconfig.debug b/arch/c6x/Kconfig.debug
new file mode 100644
index 000000000000..c299e0d8eca3
--- /dev/null
+++ b/arch/c6x/Kconfig.debug
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config ACCESS_CHECK
+	bool "Check the user pointer address"
+	default y
+	help
+	  Usually the pointer transfer from user space is checked to see if its
+	  address is in the kernel space.
+
+	  Say N here to disable that check to improve the performance.
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 091d6d04b5e5..5e89d40be8cd 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -48,40 +48,4 @@ config NR_CPUS
 	int
 	default 1
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
 source "arch/h8300/Kconfig.cpu"
-
-menu "Kernel Features"
-
-source "kernel/Kconfig.preempt"
-
-source "mm/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-endmenu
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/h8300/Kconfig.debug b/arch/h8300/Kconfig.debug
new file mode 100644
index 000000000000..22a162cd99e8
--- /dev/null
+++ b/arch/h8300/Kconfig.debug
@@ -0,0 +1 @@
+# dummy file, do not delete
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 37adb2003033..89a4b22f34d9 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,6 +4,7 @@ comment "Linux Kernel Configuration for Hexagon"
 
 config HEXAGON
 	def_bool y
+	select ARCH_NO_PREEMPT
 	select HAVE_OPROFILE
 	# Other pending projects/to-do items.
 	# select HAVE_REGS_AND_STACK_ACCESS_API
@@ -146,26 +147,6 @@ config PAGE_SIZE_256KB
 
 endchoice
 
-source "mm/Kconfig"
-
 source "kernel/Kconfig.hz"
 
 endmenu
-
-source "init/Kconfig"
-source "kernel/Kconfig.freezer"
-source "drivers/Kconfig"
-source "fs/Kconfig"
-
-menu "Executable File Formats"
-source "fs/Kconfig.binfmt"
-endmenu
-
-source "net/Kconfig"
-source "security/Kconfig"
-source "crypto/Kconfig"
-source "lib/Kconfig"
-
-menu "Kernel hacking"
-source "lib/Kconfig.debug"
-endmenu
diff --git a/arch/hexagon/Kconfig.debug b/arch/hexagon/Kconfig.debug
new file mode 100644
index 000000000000..22a162cd99e8
--- /dev/null
+++ b/arch/hexagon/Kconfig.debug
@@ -0,0 +1 @@
+# dummy file, do not delete
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 02eb68d5d1c0..2bf4ef792f2c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -4,10 +4,6 @@ config PGTABLE_LEVELS
 	range 3 4 if !IA64_PAGE_SIZE_64KB
 	default 3
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
 menu "Processor type and features"
 
 config IA64
@@ -369,10 +365,6 @@ config FORCE_CPEI_RETARGET
 	This option it useful to enable this feature on older BIOS's as well.
 	You can also enable this by using boot command line option force_cpei=1.
 
-source "kernel/Kconfig.preempt"
-
-source "mm/Kconfig"
-
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 
@@ -533,8 +525,6 @@ config CRASH_DUMP
 
 source "drivers/firmware/Kconfig"
 
-source "fs/Kconfig.binfmt"
-
 endmenu
 
 menu "Power management and ACPI options"
@@ -575,10 +565,6 @@ endmenu
 
 endif
 
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
 source "arch/ia64/hp/sim/Kconfig"
 
 config MSPEC
@@ -589,13 +575,3 @@ config MSPEC
 	  If you have an ia64 and you want to enable memory special
 	  operations support (formerly known as fetchop), say Y here,
 	  otherwise say N.
-
-source "fs/Kconfig"
-
-source "arch/ia64/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
index 677c409425df..1371efc9b005 100644
--- a/arch/ia64/Kconfig.debug
+++ b/arch/ia64/Kconfig.debug
@@ -1,7 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
 
 choice
 	prompt "Physical memory granularity"
@@ -56,5 +53,3 @@ config IA64_DEBUG_IRQ
 	  Selecting this option turns on bug checking for the IA-64 irq_save
 	  and restore instructions.  It's useful for tracking down spinlock
 	  problems, but slow!  If you're unsure, select N.
-
-endmenu
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index b29f93774d95..070553791e97 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -5,6 +5,7 @@ config M68K
 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
 	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select ARCH_NO_PREEMPT if !COLDFIRE
 	select HAVE_IDE
 	select HAVE_AOUT if MMU
 	select HAVE_DEBUG_BUGVERBOSE
@@ -80,10 +81,6 @@ config PGTABLE_LEVELS
 	default 2 if SUN3 || COLDFIRE
 	default 3
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
 config MMU
 	bool "MMU-based Paged Memory Management Support"
 	default y
@@ -138,18 +135,6 @@ endmenu
 
 menu "Kernel Features"
 
-if COLDFIRE
-source "kernel/Kconfig.preempt"
-endif
-
-source "mm/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
 endmenu
 
 if !MMU
@@ -163,18 +148,4 @@ config PM
 endmenu
 endif
 
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
 source "arch/m68k/Kconfig.devices"
-
-source "fs/Kconfig"
-
-source "arch/m68k/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug
index 04690b179a6e..f43643111eaf 100644
--- a/arch/m68k/Kconfig.debug
+++ b/arch/m68k/Kconfig.debug
@@ -1,7 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
 
 config BOOTPARAM
 	bool 'Compiled-in Kernel Boot Parameter'
@@ -51,5 +48,3 @@ config BDM_DISABLE
 	  Disable the ColdFire CPU's BDM signals.
 
 endif
-
-endmenu
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d14782100088..6163a39ddeb6 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -1,5 +1,6 @@
 config MICROBLAZE
 	def_bool y
+	select ARCH_NO_SWAP
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
@@ -52,9 +53,6 @@ config CPU_LITTLE_ENDIAN
 
 endchoice
 
-config SWAP
-	def_bool n
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
@@ -85,16 +83,10 @@ config STACKTRACE_SUPPORT
 config LOCKDEP_SUPPORT
 	def_bool y
 
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
 source "arch/microblaze/Kconfig.platform"
 
 menu "Processor type and features"
 
-source "kernel/Kconfig.preempt"
-
 source "kernel/Kconfig.hz"
 
 config MMU
@@ -268,14 +260,6 @@ config MICROBLAZE_64K_PAGES
 
 endchoice
 
-source "mm/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
 endmenu
 
 menu "Bus Options"
@@ -299,17 +283,3 @@ config PCI_XILINX
 source "drivers/pci/Kconfig"
 
 endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/microblaze/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
index 93a737c8d1a6..dc2e3c45e8a2 100644
--- a/arch/microblaze/Kconfig.debug
+++ b/arch/microblaze/Kconfig.debug
@@ -1,11 +1,5 @@
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
 
-menu "Kernel hacking"
-
 config TRACE_IRQFLAGS_SUPPORT<