Commit volume in documentation is relatively low this time, but there is

still a fair amount going on, including:
 
 - Reorganizing the architecture-specific documentation under
   Documentation/arch.  This makes the structure match the source directory
   and helps to clean up the mess that is the top-level Documentation
   directory a bit.  This work creates the new directory and moves x86 and
   most of the less-active architectures there.  The current plan is to move
   the rest of the architectures in 6.5, with the patches going through the
   appropriate subsystem trees.
 
 - Some more Spanish translations and maintenance of the Italian
   translation.
 
 - A new "Kernel contribution maturity model" document from Ted.
 
 - A new tutorial on quickly building a trimmed kernel from Thorsten.
 
 Plus the usual set of updates and fixes.
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Merge tag 'docs-6.4' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Commit volume in documentation is relatively low this time, but there
  is still a fair amount going on, including:

   - Reorganize the architecture-specific documentation under
     Documentation/arch

     This makes the structure match the source directory and helps to
     clean up the mess that is the top-level Documentation directory a
     bit. This work creates the new directory and moves x86 and most of
     the less-active architectures there.

     The current plan is to move the rest of the architectures in 6.5,
     with the patches going through the appropriate subsystem trees.

   - Some more Spanish translations and maintenance of the Italian
     translation

   - A new "Kernel contribution maturity model" document from Ted

   - A new tutorial on quickly building a trimmed kernel from Thorsten

  Plus the usual set of updates and fixes"

* tag 'docs-6.4' of git://git.lwn.net/linux: (47 commits)
  media: Adjust column width for pdfdocs
  media: Fix building pdfdocs
  docs: clk: add documentation to log which clocks have been disabled
  docs: trace: Fix typo in ftrace.rst
  Documentation/process: always CC responsible lists
  docs: kmemleak: adjust to config renaming
  ELF: document some de-facto PT_* ABI quirks
  Documentation: arm: remove stih415/stih416 related entries
  docs: turn off "smart quotes" in the HTML build
  Documentation: firmware: Clarify firmware path usage
  docs/mm: Physical Memory: Fix grammar
  Documentation: Add document for false sharing
  dma-api-howto: typo fix
  docs: move m68k architecture documentation under Documentation/arch/
  docs: move parisc documentation under Documentation/arch/
  docs: move ia64 architecture docs under Documentation/arch/
  docs: Move arc architecture docs under Documentation/arch/
  docs: move nios2 documentation under Documentation/arch/
  docs: move openrisc documentation under Documentation/arch/
  docs: move superh documentation under Documentation/arch/
  ...

CREDITS

@@ -229,6 +229,10 @@ S: University of Notre Dame
 S: Notre Dame, Indiana
 S: USA
 
+N: Kai Bankett
+E: chaosman@ontika.net
+D: QNX6 filesystem
+
 N: Greg Banks
 E: gnb@alphalink.com.au
 D: IDT77105 ATM network driver
@@ -886,6 +890,10 @@ W: http://jdelvare.nerim.net/
 D: Several hardware monitoring drivers
 S: France
 
+N: Frank "Jedi/Sector One" Denis
+E: j@pureftpd.org
+D: QNX4 filesystem
+
 N: Peter Denison
 E: peterd@pnd-pc.demon.co.uk
 W: http://www.pnd-pc.demon.co.uk/promise/
@@ -1259,6 +1267,10 @@ S: USA
 N: Adam Fritzler
 E: mid@zigamorph.net
 
+N: Richard "Scuba" A. Frowijn
+E: scuba@wxs.nl
+D: QNX4 filesystem
+
 N: Fernando Fuganti
 E: fuganti@conectiva.com.br
 E: fuganti@netbank.com.br
@@ -2218,6 +2230,10 @@ D: Digiboard PC/Xe and PC/Xi, Digiboard EPCA
 D: NUMA support, Slab allocators, Page migration
 D: Scalability, Time subsystem
 
+N: Anders Larsen
+E: al@alarsen.net
+D: QNX4 filesystem
+
 N: Paul Laufer
 E: paul@laufernet.com
 D: Soundblaster driver fixes, ISAPnP quirk

Documentation/admin-guide/hw-vuln/mds.rst

@@ -58,7 +58,7 @@ Because the buffers are potentially shared between Hyper-Threads cross
 Hyper-Thread attacks are possible.
 
 Deeper technical information is available in the MDS specific x86
-architecture section: :ref:`Documentation/x86/mds.rst <mds>`.
+architecture section: :ref:`Documentation/arch/x86/mds.rst <mds>`.
 
 
 Attack scenarios

Documentation/admin-guide/hw-vuln/tsx_async_abort.rst

@@ -63,7 +63,7 @@ attacker needs to begin a TSX transaction and raise an asynchronous abort
 which in turn potentially leaks data stored in the buffers.
 
 More detailed technical information is available in the TAA specific x86
-architecture section: :ref:`Documentation/x86/tsx_async_abort.rst <tsx_async_abort>`.
+architecture section: :ref:`Documentation/arch/x86/tsx_async_abort.rst <tsx_async_abort>`.
 
 
 Attack scenarios

Documentation/admin-guide/index.rst

@@ -36,6 +36,7 @@ problems and bugs in particular.
 
    reporting-issues
    reporting-regressions
+   quickly-build-trimmed-linux
    bug-hunting
    bug-bisect
    tainted-kernels

Documentation/admin-guide/kernel-parameters.rst

@@ -132,7 +132,7 @@ parameter is applicable::
 	LOOP	Loopback device support is enabled.
 	M68k	M68k architecture is enabled.
 			These options have more detailed description inside of
-			Documentation/m68k/kernel-options.rst.
+			Documentation/arch/m68k/kernel-options.rst.
 	MDA	MDA console support is enabled.
 	MIPS	MIPS architecture is enabled.
 	MOUSE	Appropriate mouse support is enabled.
@@ -178,7 +178,7 @@ parameter is applicable::
 	X86-32	X86-32, aka i386 architecture is enabled.
 	X86-64	X86-64 architecture is enabled.
 			More X86-64 boot options can be found in
-			Documentation/x86/x86_64/boot-options.rst.
+			Documentation/arch/x86/x86_64/boot-options.rst.
 	X86	Either 32-bit or 64-bit x86 (same as X86-32+X86-64)
 	X86_UV	SGI UV support is enabled.
 	XEN	Xen support is enabled
@@ -193,10 +193,10 @@ In addition, the following text indicates that the option::
 Parameters denoted with BOOT are actually interpreted by the boot
 loader, and have no meaning to the kernel directly.
 Do not modify the syntax of boot loader parameters without extreme
-need or coordination with <Documentation/x86/boot.rst>.
+need or coordination with <Documentation/arch/x86/boot.rst>.
 
 There are also arch-specific kernel-parameters not documented here.
-See for example <Documentation/x86/x86_64/boot-options.rst>.
+See for example <Documentation/arch/x86/x86_64/boot-options.rst>.
 
 Note that ALL kernel parameters listed below are CASE SENSITIVE, and that
 a trailing = on the name of any parameter states that that parameter will

Documentation/admin-guide/kernel-parameters.txt

@@ -929,9 +929,6 @@
 
 	debug_objects	[KNL] Enable object debugging
 
-	no_debug_objects
-			[KNL] Disable object debugging
-
 	debug_guardpage_minorder=
 			[KNL] When CONFIG_DEBUG_PAGEALLOC is set, this
 			parameter allows control of the order of pages that will
@@ -2976,7 +2973,7 @@
 
 	mce		[X86-32] Machine Check Exception
 
-	mce=option	[X86-64] See Documentation/x86/x86_64/boot-options.rst
+	mce=option	[X86-64] See Documentation/arch/x86/x86_64/boot-options.rst
 
 	md=		[HW] RAID subsystems devices and level
 			See Documentation/admin-guide/md.rst.
@@ -3184,9 +3181,6 @@
 			deep    - Suspend-To-RAM or equivalent (if supported)
 			See Documentation/admin-guide/pm/sleep-states.rst.
 
-	meye.*=		[HW] Set MotionEye Camera parameters
-			See Documentation/admin-guide/media/meye.rst.
-
 	mfgpt_irq=	[IA-32] Specify the IRQ to use for the
 			Multi-Function General Purpose Timers on AMD Geode
 			platforms.
@@ -3428,14 +3422,13 @@
 			1 to enable accounting
 			Default value is 0.
 
-	nfsaddrs=	[NFS] Deprecated.  Use ip= instead.
+	nfs.cache_getent=
-			See Documentation/admin-guide/nfs/nfsroot.rst.
+			[NFS] sets the pathname to the program which is used
+			to update the NFS client cache entries.
 
-	nfsroot=	[NFS] nfs root filesystem for disk-less boxes.
+	nfs.cache_getent_timeout=
-			See Documentation/admin-guide/nfs/nfsroot.rst.
+			[NFS] sets the timeout after which an attempt to
-
+			update a cache entry is deemed to have failed.
-	nfsrootdebug	[NFS] enable nfsroot debugging messages.
-			See Documentation/admin-guide/nfs/nfsroot.rst.
 
 	nfs.callback_nr_threads=
 			[NFSv4] set the total number of threads that the
@@ -3446,18 +3439,6 @@
 			[NFS] set the TCP port on which the NFSv4 callback
 			channel should listen.
 
-	nfs.cache_getent=
-			[NFS] sets the pathname to the program which is used
-			to update the NFS client cache entries.
-
-	nfs.cache_getent_timeout=
-			[NFS] sets the timeout after which an attempt to
-			update a cache entry is deemed to have failed.
-
-	nfs.idmap_cache_timeout=
-			[NFS] set the maximum lifetime for idmapper cache
-			entries.
-
 	nfs.enable_ino64=
 			[NFS] enable 64-bit inode numbers.
 			If zero, the NFS client will fake up a 32-bit inode
@@ -3465,6 +3446,10 @@
 			of returning the full 64-bit number.
 			The default is to return 64-bit inode numbers.
 
+	nfs.idmap_cache_timeout=
+			[NFS] set the maximum lifetime for idmapper cache
+			entries.
+
 	nfs.max_session_cb_slots=
 			[NFSv4.1] Sets the maximum number of session
 			slots the client will assign to the callback
@@ -3492,21 +3477,14 @@
 			will be autodetected by the client, and it will fall
 			back to using the idmapper.
 			To turn off this behaviour, set the value to '0'.
+
 	nfs.nfs4_unique_id=
 			[NFS4] Specify an additional fixed unique ident-
 			ification string that NFSv4 clients can insert into
 			their nfs_client_id4 string.  This is typically a
 			UUID that is generated at system install time.
 
-	nfs.send_implementation_id =
+	nfs.recover_lost_locks=
-			[NFSv4.1] Send client implementation identification
-			information in exchange_id requests.
-			If zero, no implementation identification information
-			will be sent.
-			The default is to send the implementation identification
-			information.
-
-	nfs.recover_lost_locks =
 			[NFSv4] Attempt to recover locks that were lost due
 			to a lease timeout on the server. Please note that
 			doing this risks data corruption, since there are
@@ -3518,7 +3496,15 @@
 			The default parameter value of '0' causes the kernel
 			not to attempt recovery of lost locks.
 
-	nfs4.layoutstats_timer =
+	nfs.send_implementation_id=
+			[NFSv4.1] Send client implementation identification
+			information in exchange_id requests.
+			If zero, no implementation identification information
+			will be sent.
+			The default is to send the implementation identification
+			information.
+
+	nfs4.layoutstats_timer=
 			[NFSv4.2] Change the rate at which the kernel sends
 			layoutstats to the pNFS metadata server.
 
@@ -3527,19 +3513,11 @@
 			driver. A non-zero value sets the minimum interval
 			in seconds between layoutstats transmissions.
 
-	nfsd.inter_copy_offload_enable =
+	nfsd.inter_copy_offload_enable=
 			[NFSv4.2] When set to 1, the server will support
 			server-to-server copies for which this server is
 			the destination of the copy.
 
-	nfsd.nfsd4_ssc_umount_timeout =
-			[NFSv4.2] When used as the destination of a
-			server-to-server copy, knfsd temporarily mounts
-			the source server.  It caches the mount in case
-			it will be needed again, and discards it if not
-			used for the number of milliseconds specified by
-			this parameter.
-
 	nfsd.nfs4_disable_idmapping=
 			[NFSv4] When set to the default of '1', the NFSv4
 			server will return only numeric uids and gids to
@@ -3547,6 +3525,22 @@
 			and gids from such clients.  This is intended to ease
 			migration from NFSv2/v3.
 
+	nfsd.nfsd4_ssc_umount_timeout=
+			[NFSv4.2] When used as the destination of a
+			server-to-server copy, knfsd temporarily mounts
+			the source server.  It caches the mount in case
+			it will be needed again, and discards it if not
+			used for the number of milliseconds specified by
+			this parameter.
+
+	nfsaddrs=	[NFS] Deprecated.  Use ip= instead.
+			See Documentation/admin-guide/nfs/nfsroot.rst.
+
+	nfsroot=	[NFS] nfs root filesystem for disk-less boxes.
+			See Documentation/admin-guide/nfs/nfsroot.rst.
+
+	nfsrootdebug	[NFS] enable nfsroot debugging messages.
+			See Documentation/admin-guide/nfs/nfsroot.rst.
 
 	nmi_backtrace.backtrace_idle [KNL]
 			Dump stacks even of idle CPUs in response to an
@@ -3579,34 +3573,6 @@
 	no5lvl		[X86-64] Disable 5-level paging mode. Forces
 			kernel to use 4-level paging instead.
 
-	nofsgsbase	[X86] Disables FSGSBASE instructions.
-
-	no_console_suspend
-			[HW] Never suspend the console
-			Disable suspending of consoles during suspend and
-			hibernate operations.  Once disabled, debugging
-			messages can reach various consoles while the rest
-			of the system is being put to sleep (ie, while
-			debugging driver suspend/resume hooks).  This may
-			not work reliably with all consoles, but is known
-			to work with serial and VGA consoles.
-			To facilitate more flexible debugging, we also add
-			console_suspend, a printk module parameter to control
-			it. Users could use console_suspend (usually
-			/sys/module/printk/parameters/console_suspend) to
-			turn on/off it dynamically.
-
-	novmcoredd	[KNL,KDUMP]
-			Disable device dump. Device dump allows drivers to
-			append dump data to vmcore so you can collect driver
-			specified debug info.  Drivers can append the data
-			without any limit and this data is stored in memory,
-			so this may cause significant memory stress.  Disabling
-			device dump can help save memory but the driver debug
-			data will be no longer available.  This parameter
-			is only available when CONFIG_PROC_VMCORE_DEVICE_DUMP
-			is set.
-
 	noaliencache	[MM, NUMA, SLAB] Disables the allocation of alien
 			caches in the slab allocator.  Saves per-node memory,
 			but will impact performance.
@@ -3623,6 +3589,24 @@
 
 	nocache		[ARM]
 
+	no_console_suspend
+			[HW] Never suspend the console
+			Disable suspending of consoles during suspend and
+			hibernate operations.  Once disabled, debugging
+			messages can reach various consoles while the rest
+			of the system is being put to sleep (ie, while
+			debugging driver suspend/resume hooks).  This may
+			not work reliably with all consoles, but is known
+			to work with serial and VGA consoles.
+			To facilitate more flexible debugging, we also add
+			console_suspend, a printk module parameter to control
+			it. Users could use console_suspend (usually
+			/sys/module/printk/parameters/console_suspend) to
+			turn on/off it dynamically.
+
+	no_debug_objects
+			[KNL] Disable object debugging
+
 	nodsp		[SH] Disable hardware DSP at boot time.
 
 	noefi		Disable EFI runtime services support.
@@ -3631,14 +3615,6 @@
 
 	noexec		[IA-64]
 
-	nosmap		[PPC]
-			Disable SMAP (Supervisor Mode Access Prevention)
-			even if it is supported by processor.
-
-	nosmep		[PPC64s]
-			Disable SMEP (Supervisor Mode Execution Prevention)
-			even if it is supported by processor.
-
 	noexec32	[X86-64]
 			This affects only 32-bit executables.
 			noexec32=on: enable non-executable mappings (default)
@@ -3646,74 +3622,18 @@
 			noexec32=off: disable non-executable mappings
 				read implies executable mappings
 
+	no_file_caps	Tells the kernel not to honor file capabilities.  The
+			only way then for a file to be executed with privilege
+			is to be setuid root or executed by root.
+
 	nofpu		[MIPS,SH] Disable hardware FPU at boot time.
 
+	nofsgsbase	[X86] Disables FSGSBASE instructions.
+
 	nofxsr		[BUGS=X86-32] Disables x86 floating point extended
 			register save and restore. The kernel will only save
 			legacy floating-point registers on task switch.
 
-	nohugeiomap	[KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
-
-	nohugevmalloc	[KNL,X86,PPC,ARM64] Disable kernel huge vmalloc mappings.
-
-	nosmt		[KNL,S390] Disable symmetric multithreading (SMT).
-			Equivalent to smt=1.
-
-			[KNL,X86] Disable symmetric multithreading (SMT).
-			nosmt=force: Force disable SMT, cannot be undone
-				     via the sysfs control file.
-
-	nospectre_v1	[X86,PPC] Disable mitigations for Spectre Variant 1
-			(bounds check bypass). With this option data leaks are
-			possible in the system.
-
-	nospectre_v2	[X86,PPC_E500,ARM64] Disable all mitigations for
-			the Spectre variant 2 (indirect branch prediction)
-			vulnerability. System may allow data leaks with this
-			option.
-
-	nospectre_bhb	[ARM64] Disable all mitigations for Spectre-BHB (branch
-			history injection) vulnerability. System may allow data leaks
-			with this option.
-
-	nospec_store_bypass_disable
-			[HW] Disable all mitigations for the Speculative Store Bypass vulnerability
-
-	no_uaccess_flush
-	                [PPC] Don't flush the L1-D cache after accessing user data.
-
-	noxsave		[BUGS=X86] Disables x86 extended register state save
-			and restore using xsave. The kernel will fallback to
-			enabling legacy floating-point and sse state.
-
-	noxsaveopt	[X86] Disables xsaveopt used in saving x86 extended
-			register states. The kernel will fall back to use
-			xsave to save the states. By using this parameter,
-			performance of saving the states is degraded because
-			xsave doesn't support modified optimization while
-			xsaveopt supports it on xsaveopt enabled systems.
-
-	noxsaves	[X86] Disables xsaves and xrstors used in saving and
-			restoring x86 extended register state in compacted
-			form of xsave area. The kernel will fall back to use
-			xsaveopt and xrstor to save and restore the states
-			in standard form of xsave area. By using this
-			parameter, xsave area per process might occupy more
-			memory on xsaves enabled systems.
-
-	nohlt		[ARM,ARM64,MICROBLAZE,SH] Forces the kernel to busy wait
-			in do_idle() and not use the arch_cpu_idle()
-			implementation; requires CONFIG_GENERIC_IDLE_POLL_SETUP
-			to be effective. This is useful on platforms where the
-			sleep(SH) or wfi(ARM,ARM64) instructions do not work
-			correctly or when doing power measurements to evaluate
-			the impact of the sleep instructions. This is also
-			useful when using JTAG debugger.
-
-	no_file_caps	Tells the kernel not to honor file capabilities.  The
-			only way then for a file to be executed with privilege
-			is to be setuid root or executed by root.
-
 	nohalt		[IA-64] Tells the kernel not to use the power saving
 			function PAL_HALT_LIGHT when idle. This increases
 			power-consumption. On the positive side, it reduces
@@ -3737,6 +3657,19 @@
 
 	nohibernate	[HIBERNATION] Disable hibernation and resume.
 
+	nohlt		[ARM,ARM64,MICROBLAZE,SH] Forces the kernel to busy wait
+			in do_idle() and not use the arch_cpu_idle()
+			implementation; requires CONFIG_GENERIC_IDLE_POLL_SETUP
+			to be effective. This is useful on platforms where the
+			sleep(SH) or wfi(ARM,ARM64) instructions do not work
+			correctly or when doing power measurements to evaluate
+			the impact of the sleep instructions. This is also
+			useful when using JTAG debugger.
+
+	nohugeiomap	[KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
+
+	nohugevmalloc	[KNL,X86,PPC,ARM64] Disable kernel huge vmalloc mappings.
+
 	nohz=		[KNL] Boottime enable/disable dynamic ticks
 			Valid arguments: on, off
 			Default: on
@@ -3754,16 +3687,6 @@
 			Note that this argument takes precedence over
 			the CONFIG_RCU_NOCB_CPU_DEFAULT_ALL option.
 
-	noiotrap	[SH] Disables trapped I/O port accesses.
-
-	noirqdebug	[X86-32] Disables the code which attempts to detect and
-			disable unhandled interrupt sources.
-
-	no_timer_check	[X86,APIC] Disables the code which tests for
-			broken timer IRQ sources.
-
-	noisapnp	[ISAPNP] Disables ISA PnP code.
-
 	noinitrd	[RAM] Tells the kernel not to load any configured
 			initial RAM disk.
 
@@ -3775,6 +3698,13 @@
 
 	noinvpcid	[X86] Disable the INVPCID cpu feature.
 
+	noiotrap	[SH] Disables trapped I/O port accesses.
+
+	noirqdebug	[X86-32] Disables the code which attempts to detect and
+			disable unhandled interrupt sources.
+
+	noisapnp	[ISAPNP] Disables ISA PnP code.
+
 	nojitter	[IA-64] Disables jitter checking for ITC timers.
 
 	nokaslr		[KNL]
@@ -3782,18 +3712,10 @@
 			kernel and module base offset ASLR (Address Space
 			Layout Randomization).
 
-	no-kvmclock	[X86,KVM] Disable paravirtualized KVM clock driver
-
 	no-kvmapf	[X86,KVM] Disable paravirtualized asynchronous page
 			fault handling.
 
-	no-vmw-sched-clock
+	no-kvmclock	[X86,KVM] Disable paravirtualized KVM clock driver
-			[X86,PV_OPS] Disable paravirtualized VMware scheduler
-			clock and use the default one.
-
-	no-steal-acc	[X86,PV_OPS,ARM64,PPC/PSERIES] Disable paravirtualized
-			steal time accounting. steal time is computed, but
-			won't influence scheduler behaviour
 
 	nolapic		[X86-32,APIC] Do not enable or use the local APIC.
 
@@ -3806,10 +3728,6 @@
 	nomfgpt		[X86-32] Disable Multi-Function General Purpose
 			Timer usage (for AMD Geode machines).
 
-	nonmi_ipi	[X86] Disable using NMI IPIs during panic/reboot to
-			shutdown the other cpus.  Instead use the REBOOT_VECTOR
-			irq.
-
 	nomodeset	Disable kernel modesetting. Most systems' firmware
 			sets up a display mode and provides framebuffer memory
 			for output. With nomodeset, DRM and fbdev drivers will
@@ -3822,6 +3740,10 @@
 
 	nomodule	Disable module load
 
+	nonmi_ipi	[X86] Disable using NMI IPIs during panic/reboot to
+			shutdown the other cpus.  Instead use the REBOOT_VECTOR
+			irq.
+
 	nopat		[X86] Disable PAT (page attribute table extension of
 			pagetables) support.
 
@@ -3830,6 +3752,9 @@
 	nopku		[X86] Disable Memory Protection Keys CPU feature found
 			in some Intel CPUs.
 
+	nopti		[X86-64]
+			Equivalent to pti=off
+
 	nopv=		[X86,XEN,KVM,HYPER_V,VMWARE]
 			Disables the PV optimizations forcing the guest to run
 			as generic guest with no PV drivers. Currently support
@@ -3849,21 +3774,77 @@
 	noresume	[SWSUSP] Disables resume and restores original swap
 			space.
 
+	nosbagart	[IA-64]
+
 	no-scroll	[VGA] Disables scrollback.
 			This is required for the Braillex ib80-piezo Braille
 			reader made by F.H. Papenmeier (Germany).
 
-	nosbagart	[IA-64]
-
 	nosgx		[X86-64,SGX] Disables Intel SGX kernel support.
 
+	nosmap		[PPC]
+			Disable SMAP (Supervisor Mode Access Prevention)
+			even if it is supported by processor.
+
+	nosmep		[PPC64s]
+			Disable SMEP (Supervisor Mode Execution Prevention)
+			even if it is supported by processor.
+
 	nosmp		[SMP] Tells an SMP kernel to act as a UP kernel,
 			and disable the IO APIC.  legacy for "maxcpus=0".
 
+	nosmt		[KNL,S390] Disable symmetric multithreading (SMT).
+			Equivalent to smt=1.
+
+			[KNL,X86] Disable symmetric multithreading (SMT).
+			nosmt=force: Force disable SMT, cannot be undone
+				     via the sysfs control file.
+
 	nosoftlockup	[KNL] Disable the soft-lockup detector.
 
+	nospec_store_bypass_disable
+			[HW] Disable all mitigations for the Speculative Store Bypass vulnerability
+
+	nospectre_bhb	[ARM64] Disable all mitigations for Spectre-BHB (branch
+			history injection) vulnerability. System may allow data leaks
+			with this option.
+
+	nospectre_v1	[X86,PPC] Disable mitigations for Spectre Variant 1
+			(bounds check bypass). With this option data leaks are
+			possible in the system.
+
+	nospectre_v2	[X86,PPC_E500,ARM64] Disable all mitigations for
+			the Spectre variant 2 (indirect branch prediction)
+			vulnerability. System may allow data leaks with this
+			option.
+
+	no-steal-acc	[X86,PV_OPS,ARM64,PPC/PSERIES] Disable paravirtualized
+			steal time accounting. steal time is computed, but
+			won't influence scheduler behaviour
+
 	nosync		[HW,M68K] Disables sync negotiation for all devices.
 
+	no_timer_check	[X86,APIC] Disables the code which tests for
+			broken timer IRQ sources.
+
+	no_uaccess_flush
+	                [PPC] Don't flush the L1-D cache after accessing user data.
+
+	novmcoredd	[KNL,KDUMP]
+			Disable device dump. Device dump allows drivers to
+			append dump data to vmcore so you can collect driver
+			specified debug info.  Drivers can append the data
+			without any limit and this data is stored in memory,
+			so this may cause significant memory stress.  Disabling
+			device dump can help save memory but the driver debug
+			data will be no longer available.  This parameter
+			is only available when CONFIG_PROC_VMCORE_DEVICE_DUMP
+			is set.
+
+	no-vmw-sched-clock
+			[X86,PV_OPS] Disable paravirtualized VMware scheduler
+			clock and use the default one.
+
 	nowatchdog	[KNL] Disable both lockup detectors, i.e.
 			soft-lockup and NMI watchdog (hard-lockup).
 
@@ -3875,6 +3856,25 @@
 			LEGACY_XAPIC_DISABLED bit set in the
 			IA32_XAPIC_DISABLE_STATUS MSR.
 
+	noxsave		[BUGS=X86] Disables x86 extended register state save
+			and restore using xsave. The kernel will fallback to
+			enabling legacy floating-point and sse state.
+
+	noxsaveopt	[X86] Disables xsaveopt used in saving x86 extended
+			register states. The kernel will fall back to use
+			xsave to save the states. By using this parameter,
+			performance of saving the states is degraded because
+			xsave doesn't support modified optimization while
+			xsaveopt supports it on xsaveopt enabled systems.
+
+	noxsaves	[X86] Disables xsaves and xrstors used in saving and
+			restoring x86 extended register state in compacted
+			form of xsave area. The kernel will fall back to use
+			xsaveopt and xrstor to save and restore the states
+			in standard form of xsave area. By using this
+			parameter, xsave area per process might occupy more
+			memory on xsaves enabled systems.
+
 	nps_mtm_hs_ctr=	[KNL,ARC]
 			This parameter sets the maximum duration, in
 			cycles, each HW thread of the CTOP can run
@@ -4410,7 +4410,7 @@
 			and performance comparison.
 
 	pirq=		[SMP,APIC] Manual mp-table setup
-			See Documentation/x86/i386/IO-APIC.rst.
+			See Documentation/arch/x86/i386/IO-APIC.rst.
 
 	plip=		[PPT,NET] Parallel port network link
 			Format: { parport<nr> | timid | 0 }
@@ -4582,9 +4582,6 @@
 
 			Not specifying this option is equivalent to pti=auto.
 
-	nopti		[X86-64]
-			Equivalent to pti=off
-
 	pty.legacy_count=
 			[KNL] Number of legacy pty's. Overwrites compiled-in
 			default number.
@@ -5591,7 +5588,7 @@
 
 	serialnumber	[BUGS=X86-32]
 
-	sev=option[,option...] [X86-64] See Documentation/x86/x86_64/boot-options.rst
+	sev=option[,option...] [X86-64] See Documentation/arch/x86/x86_64/boot-options.rst
 
 	shapers=	[NET]
 			Maximal number of shapers.
@@ -6770,7 +6767,7 @@
 			Can be used multiple times for multiple devices.
 
 	vga=		[BOOT,X86-32] Select a particular video mode
-			See Documentation/x86/boot.rst and
+			See Documentation/arch/x86/boot.rst and
 			Documentation/admin-guide/svga.rst.
 			Use vga=ask for menu.
 			This is actually a boot loader parameter; the value is

Documentation/admin-guide/ras.rst

@@ -199,7 +199,7 @@ Architecture (MCA)\ [#f3]_.
   mode).
 
 .. [#f3] For more details about the Machine Check Architecture (MCA),
-  please read Documentation/x86/x86_64/machinecheck.rst at the Kernel tree.
+  please read Documentation/arch/x86/x86_64/machinecheck.rst at the Kernel tree.
 
 EDAC - Error Detection And Correction
 *************************************

Documentation/admin-guide/sysctl/kernel.rst

@@ -95,7 +95,7 @@ is 0x15 and the full version number is 0x234, this file will contain
 the value 340 = 0x154.
 
 See the ``type_of_loader`` and ``ext_loader_type`` fields in
-Documentation/x86/boot.rst for additional information.
+Documentation/arch/x86/boot.rst for additional information.
 
 
 bootloader_version (x86 only)
@@ -105,7 +105,7 @@ The complete bootloader version number.  In the example above, this
 file will contain the value 564 = 0x234.
 
 See the ``type_of_loader`` and ``ext_loader_ver`` fields in
-Documentation/x86/boot.rst for additional information.
+Documentation/arch/x86/boot.rst for additional information.
 
 
 bpf_stats_enabled

Documentation/admin-guide/unicode.rst

@@ -3,11 +3,10 @@ Unicode support
 
 		 Last update: 2005-01-17, version 1.4
 
-This file is maintained by H. Peter Anvin <unicode@lanana.org> as part
+Note: The original version of this document, which was maintained at
-of the Linux Assigned Names And Numbers Authority (LANANA) project.
+lanana.org as part of the Linux Assigned Names And Numbers Authority
-The current version can be found at:
+(LANANA) project, is no longer existent.  So, this version in the
-
+mainline Linux kernel is now the maintained main document.
-	    http://www.lanana.org/docs/unicode/admin-guide/unicode.rst
 
 Introduction
 ------------

Documentation/arch/index.rst

@@ -10,18 +10,18 @@ implementation.
    :maxdepth: 2
 
    arc/index
-   arm/index
+   ../arm/index
-   arm64/index
+   ../arm64/index
    ia64/index
-   loongarch/index
+   ../loongarch/index
    m68k/index
-   mips/index
+   ../mips/index
    nios2/index
    openrisc/index
    parisc/index
-   powerpc/index
+   ../powerpc/index
-   riscv/index
+   ../riscv/index
-   s390/index
+   ../s390/index
    sh/index
    sparc/index
    x86/index

Documentation/arch/x86/boot.rst

@@ -1344,7 +1344,7 @@ follow::
 In addition to read/modify/write the setup header of the struct
 boot_params as that of 16-bit boot protocol, the boot loader should
 also fill the additional fields of the struct boot_params as
-described in chapter Documentation/x86/zero-page.rst.
+described in chapter Documentation/arch/x86/zero-page.rst.
 
 After setting up the struct boot_params, the boot loader can load the
 32/64-bit kernel in the same way as that of 16-bit boot protocol.
@@ -1380,7 +1380,7 @@ can be calculated as follows::
 In addition to read/modify/write the setup header of the struct
 boot_params as that of 16-bit boot protocol, the boot loader should
 also fill the additional fields of the struct boot_params as described
-in chapter Documentation/x86/zero-page.rst.
+in chapter Documentation/arch/x86/zero-page.rst.
 
 After setting up the struct boot_params, the boot loader can load
 64-bit kernel in the same way as that of 16-bit boot protocol, but

Documentation/arch/x86/booting-dt.rst

@@ -7,7 +7,7 @@ DeviceTree Booting
   the decompressor (the real mode entry point goes to the same  32bit
   entry point once it switched into protected mode). That entry point
   supports one calling convention which is documented in
-  Documentation/x86/boot.rst
+  Documentation/arch/x86/boot.rst
   The physical pointer to the device-tree block is passed via setup_data
   which requires at least boot protocol 2.09.
   The type filed is defined as

Documentation/arch/x86/buslock.rst

@@ -53,8 +53,14 @@ parameter "split_lock_detect". Here is a summary of different options:
 |off	  	   |Do nothing			|Do nothing		|
 +------------------+----------------------------+-----------------------+
 |warn		   |Kernel OOPs			|Warn once per task and |
-|(default)	   |Warn once per task and	|and continues to run.  |
+|(default)	   |Warn once per task, add a	|and continues to run.  |
-|		   |disable future checking	|			|
+|		   |delay, add synchronization	|			|
+|		   |to prevent more than one	|			|
+|		   |core from executing a	|			|
+|		   |split lock in parallel.	|			|
+|		   |sysctl split_lock_mitigate	|			|
+|		   |can be used to avoid the	|			|
+|		   |delay and synchronization	|			|
 |		   |When both features are	|			|
 |		   |supported, warn in #AC	|			|
 +------------------+----------------------------+-----------------------+

Documentation/arch/x86/mtrr.rst

@@ -28,7 +28,7 @@ are aligned with platform MTRR setup. If MTRRs are only set up by the platform
 firmware code though and the OS does not make any specific MTRR mapping
 requests mtrr_type_lookup() should always return MTRR_TYPE_INVALID.
 
-For details refer to Documentation/x86/pat.rst.
+For details refer to Documentation/arch/x86/pat.rst.
 
 .. tip::
   On Intel P6 family processors (Pentium Pro, Pentium II and later)

Documentation/arch/x86/x86_64/5level-paging.rst

@@ -20,7 +20,7 @@ physical address space. This "ought to be enough for anybody" ©.
 QEMU 2.9 and later support 5-level paging.
 
 Virtual memory layout for 5-level paging is described in
-Documentation/x86/x86_64/mm.rst
+Documentation/arch/x86/x86_64/mm.rst
 
 
 Enabling 5-level paging

Documentation/arch/x86/x86_64/boot-options.rst

@@ -9,7 +9,7 @@ only the AMD64 specific ones are listed here.
 
 Machine check
 =============
-Please see Documentation/x86/x86_64/machinecheck.rst for sysfs runtime tunables.
+Please see Documentation/arch/x86/x86_64/machinecheck.rst for sysfs runtime tunables.
 
    mce=off
 		Disable machine check
@@ -82,7 +82,7 @@ APICs
      Don't use the local APIC (alias for i386 compatibility)
 
    pirq=...
-	See Documentation/x86/i386/IO-APIC.rst
+	See Documentation/arch/x86/i386/IO-APIC.rst
 
    noapictimer
 	Don't set up the APIC timer

Documentation/arch/x86/x86_64/fake-numa-for-cpusets.rst

@@ -18,7 +18,7 @@ For more information on the features of cpusets, see
 Documentation/admin-guide/cgroup-v1/cpusets.rst.
 There are a number of different configurations you can use for your needs.  For
 more information on the numa=fake command line option and its various ways of
-configuring fake nodes, see Documentation/x86/x86_64/boot-options.rst.
+configuring fake nodes, see Documentation/arch/x86/x86_64/boot-options.rst.
 
 For the purposes of this introduction, we'll assume a very primitive NUMA
 emulation setup of "numa=fake=4*512,".  This will split our system memory into

Documentation/arm/index.rst

@@ -69,11 +69,9 @@ SoC-specific documents
 
    spear/overview
 
-   sti/stih416-overview
    sti/stih407-overview
    sti/stih418-overview
    sti/overview
-   sti/stih415-overview
 
    vfp/release-notes