Merge tag 'v4.15-rc1' into drm-misc-fixes

Linux 4.15-rc1

Pull in the merge window to resync. Dave didn't get his -fixes pull
landed in time, and now there's another rockchip fix pending, so
fast-forwarding isn't possible, hence backmerge.
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>

.gitignore

@@ -7,38 +7,40 @@
 # command after changing this file, to see if there are
 # any tracked files which get ignored after the change.
 #
-# Normal rules
+# Normal rules (sorted alphabetically)
 #
 .*
+*.a
+*.bin
+*.bz2
+*.c.[012]*.*
+*.dtb
+*.dtb.S
+*.dwo
+*.elf
+*.gcno
+*.gz
+*.i
+*.ko
+*.ll
+*.lst
+*.lz4
+*.lzma
+*.lzo
+*.mod.c
 *.o
 *.o.*
-*.a
+*.order
+*.patch
 *.s
-*.ko
 *.so
 *.so.dbg
-*.mod.c
-*.i
-*.lst
+*.su
 *.symtypes
-*.order
-*.elf
-*.bin
 *.tar
-*.gz
-*.bz2
-*.lzma
 *.xz
-*.lz4
-*.lzo
-*.patch
-*.gcno
-*.ll
-modules.builtin
 Module.symvers
-*.dwo
-*.su
-*.c.[012]*.*
+modules.builtin
 
 #
 # Top-level generic files
@@ -53,6 +55,11 @@ Module.symvers
 /System.map
 /Module.markers
 
+#
+# RPM spec file (make rpm-pkg)
+#
+/*.spec
+
 #
 # Debian directory (make deb-pkg)
 #

.mailmap

@@ -15,6 +15,7 @@ Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>
 Alan Cox <alan@lxorguk.ukuu.org.uk>
 Alan Cox <root@hraefn.swansea.linux.org.uk>
 Aleksey Gorelov <aleksey_gorelov@phoenix.com>
+Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com>
 Al Viro <viro@ftp.linux.org.uk>
 Al Viro <viro@zenIV.linux.org.uk>
 Andreas Herrmann <aherrman@de.ibm.com>
@@ -43,6 +44,7 @@ Corey Minyard <minyard@acm.org>
 Damian Hobson-Garcia <dhobsong@igel.co.jp>
 David Brownell <david-b@pacbell.net>
 David Woodhouse <dwmw2@shinybook.infradead.org>
+Deng-Cheng Zhu <dengcheng.zhu@mips.com> <dengcheng.zhu@imgtec.com>
 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 Domen Puncer <domen@coderock.org>
 Douglas Gilbert <dougg@torque.net>
@@ -71,6 +73,8 @@ James E Wilson <wilson@specifix.com>
 James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
 James Hogan <jhogan@kernel.org> <james@albanarts.com>
 James Ketrenos <jketreno@io.(none)>
+Jason Gunthorpe <jgg@ziepe.ca> <jgg@mellanox.com>
+Jason Gunthorpe <jgg@ziepe.ca> <jgunthorpe@obsidianresearch.com>
 Javi Merino <javi.merino@kernel.org> <javi.merino@arm.com>
 <javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
 Jean Tourrilhes <jt@hpl.hp.com>
@@ -100,6 +104,8 @@ Leonid I Ananiev <leonid.i.ananiev@intel.com>
 Linas Vepstas <linas@austin.ibm.com>
 Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@web.de>
 Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
+Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
+Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
 Mark Brown <broonie@sirena.org.uk>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@theobroma-systems.com>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
@@ -114,9 +120,11 @@ Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
 Matt Ranostay <mranostay@gmail.com> Matthew Ranostay <mranostay@embeddedalley.com>
 Matt Ranostay <mranostay@gmail.com> <matt.ranostay@intel.com>
 Matt Ranostay <matt.ranostay@konsulko.com> <matt@ranostay.consulting>
+Matt Redfearn <matt.redfearn@mips.com> <matt.redfearn@imgtec.com>
 Mayuresh Janorkar <mayur@ti.com>
 Michael Buesch <m@bues.ch>
 Michel Dänzer <michel@tungstengraphics.com>
+Miodrag Dinic <miodrag.dinic@mips.com> <miodrag.dinic@imgtec.com>
 Mitesh shah <mshah@teja.com>
 Mohit Kumar <mohit.kumar@st.com> <mohit.kumar.dhaka@gmail.com>
 Morten Welinder <terra@gnome.org>
@@ -127,6 +135,7 @@ Mythri P K <mythripk@ti.com>
 Nguyen Anh Quynh <aquynh@gmail.com>
 Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
 Patrick Mochel <mochel@digitalimplant.org>
+Paul Burton <paul.burton@mips.com> <paul.burton@imgtec.com>
 Peter A Jonsson <pj@ludd.ltu.se>
 Peter Oruba <peter@oruba.de>
 Peter Oruba <peter.oruba@amd.com>

CREDITS

@@ -2113,6 +2113,10 @@ S: J. Obrechtstr 23
 S: NL-5216 GP 's-Hertogenbosch
 S: The Netherlands
 
+N: Ashley Lai
+E: ashleydlai@gmail.com
+D: IBM VTPM driver
+
 N: Savio Lam
 E: lam836@cs.cuhk.hk
 D: Author of the dialog utility, foundation
@@ -3333,6 +3337,10 @@ S: Braunschweiger Strasse 79
 S: 31134 Hildesheim
 S: Germany
 
+N: Marcel Selhorst
+E: tpmdd@selhorst.net
+D: TPM driver
+
 N: Darren Senn
 E: sinster@darkwater.com
 D: Whatever I notice needs doing (so far: itimers, /proc)
@@ -4128,7 +4136,6 @@ D: MD driver
 D: EISA/sysfs subsystem
 S: France
 
-
 # Don't add your name here, unless you really _are_ after Marc
 # alphabetically. Leonard used to be very proud of being the 
 # last entry, and he'll get positively pissed if he can't even

Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads

-What:		/proc/sys/vm/nr_pdflush_threads
-Date:		June 2012
-Contact:	Wanpeng Li <liwp@linux.vnet.ibm.com>
-Description: Since pdflush is replaced by per-BDI flusher, the interface of old pdflush
-             exported in /proc/sys/vm/ should be removed.

Documentation/ABI/obsolete/sysfs-gpio

@@ -11,7 +11,7 @@ Description:
   Kernel code may export it for complete or partial access.
 
   GPIOs are identified as they are inside the kernel, using integers in
-  the range 0..INT_MAX.  See Documentation/gpio.txt for more information.
+  the range 0..INT_MAX.  See Documentation/gpio/gpio.txt for more information.
 
     /sys/class/gpio
 	/export ... asks the kernel to export a GPIO to userspace

Documentation/ABI/stable/sysfs-bus-vmbus

@@ -41,3 +41,73 @@ KernelVersion:	4.5
 Contact:	K. Y. Srinivasan <kys@microsoft.com>
 Description:	The 16 bit vendor ID of the device
 Users:		tools/hv/lsvmbus and user level RDMA libraries
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/cpu
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	VCPU (sub)channel is affinitized to
+Users:		tools/hv/lsvmbus and other debuggig tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/cpu
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	VCPU (sub)channel is affinitized to
+Users:		tools/hv/lsvmbus and other debuggig tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/in_mask
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Inbound channel signaling state
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/latency
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Channel signaling latency
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/out_mask
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Outbound channel signaling state
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/pending
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Channel interrupt pending state
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/read_avail
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Bytes availabble to read
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/write_avail
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Bytes availabble to write
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/events
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Number of times we have signaled the host
+Users:		Debugging tools
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channels/relid/interrupts
+Date:		September. 2017
+KernelVersion:	4.14
+Contact:	Stephen Hemminger <sthemmin@microsoft.com>
+Description:	Number of times we have taken an interrupt (incoming)
+Users:		Debugging tools

Documentation/ABI/stable/sysfs-devices

 # Note: This documents additional properties of any device beyond what
-# is documented in Documentation/sysfs-rules.txt
+# is documented in Documentation/admin-guide/sysfs-rules.rst
 
 What:		/sys/devices/*/of_node
 Date:		February 2015

Documentation/ABI/testing/dell-smbios-wmi

+What:		/dev/wmi/dell-smbios
+Date:		November 2017
+KernelVersion:	4.15
+Contact:	"Mario Limonciello" <mario.limonciello@dell.com>
+Description:
+		Perform SMBIOS calls on supported Dell machines.
+		through the Dell ACPI-WMI interface.
+
+		IOCTL's and buffer formats are defined in:
+		<uapi/linux/wmi.h>
+
+		1) To perform an SMBIOS call from userspace, you'll need to
+		first determine the minimum size of the calling interface
+		buffer for your machine.
+		Platforms that contain larger buffers can return larger
+		objects from the system firmware.
+		Commonly this size is either 4k or 32k.
+
+		To determine the size of the buffer read() a u64 dword from
+		the WMI character device /dev/wmi/dell-smbios.
+
+		2) After you've determined the minimum size of the calling
+		interface buffer, you can allocate a structure that represents
+		the structure documented above.
+
+		3) In the 'length' object store the size of the buffer you
+		determined above and allocated.
+
+		4) In this buffer object, prepare as necessary for the SMBIOS
+		call you're interested in.  Typically SMBIOS buffers have
+		"class", "select", and "input" defined to values that coincide
+		with the data you are interested in.
+		Documenting class/select/input values is outside of the scope
+		of this documentation. Check with the libsmbios project for
+		further documentation on these values.
+
+		6) Run the call by using ioctl() as described in the header.
+
+		7) The output will be returned in the buffer object.
+
+		8) Be sure to free up your allocated object.

Documentation/ABI/testing/evm

@@ -7,17 +7,37 @@ Description:
 		HMAC-sha1 value across the extended attributes, storing the
 		value as the extended attribute 'security.evm'.
 
-		EVM depends on the Kernel Key Retention System to provide it
-		with a trusted/encrypted key for the HMAC-sha1 operation.
-		The key is loaded onto the root's keyring using keyctl.  Until
-		EVM receives notification that the key has been successfully
-		loaded onto the keyring (echo 1 > <securityfs>/evm), EVM
-		can not create or validate the 'security.evm' xattr, but
-		returns INTEGRITY_UNKNOWN.  Loading the key and signaling EVM
-		should be done as early as possible.  Normally this is done
-		in the initramfs, which has already been measured as part
-		of the trusted boot.  For more information on creating and
-		loading existing trusted/encrypted keys, refer to:
-		Documentation/keys-trusted-encrypted.txt.  (A sample dracut
-		patch, which loads the trusted/encrypted key and enables
-		EVM, is available from http://linux-ima.sourceforge.net/#EVM.)
+		EVM supports two classes of security.evm. The first is
+		an HMAC-sha1 generated locally with a
+		trusted/encrypted key stored in the Kernel Key
+		Retention System. The second is a digital signature
+		generated either locally or remotely using an
+		asymmetric key. These keys are loaded onto root's
+		keyring using keyctl, and EVM is then enabled by
+		echoing a value to <securityfs>/evm:
+
+		1: enable HMAC validation and creation
+		2: enable digital signature validation
+		3: enable HMAC and digital signature validation and HMAC
+		   creation
+
+		Further writes will be blocked if HMAC support is enabled or
+		if bit 32 is set:
+
+		echo 0x80000002 ><securityfs>/evm
+
+		will enable digital signature validation and block
+		further writes to <securityfs>/evm.
+
+		Until this is done, EVM can not create or validate the
+		'security.evm' xattr, but returns INTEGRITY_UNKNOWN.
+		Loading keys and signaling EVM should be done as early
+		as possible.  Normally this is done in the initramfs,
+		which has already been measured as part of the trusted
+		boot.  For more information on creating and loading
+		existing trusted/encrypted keys, refer to:
+
+		Documentation/security/keys/trusted-encrypted.rst. Both dracut
+		(via 97masterkey and 98integrity) and systemd (via
+		core/ima-setup) have support for loading keys at boot
+		time.

Documentation/ABI/testing/sysfs-bus-iio

@@ -522,6 +522,7 @@ Description:
 		Specifies the output powerdown mode.
 		DAC output stage is disconnected from the amplifier and
 		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
+		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
 		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
 		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
 		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
@@ -1242,9 +1243,9 @@ What:		/sys/.../iio:deviceX/in_distance_raw
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
-		This attribute is used to read the distance covered by the user
-		since the last reboot while activated. Units after application
-		of scale are meters.
+		This attribute is used to read the measured distance to an object
+		or the distance covered by the user since the last reboot while
+		activated. Units after application of scale are meters.
 
 What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
 KernelVersion:	3.4.0

Documentation/ABI/testing/sysfs-bus-iio-cros-ec

@@ -16,3 +16,13 @@ Description:
                 the motion sensor is placed. For example, in a laptop a motion
                 sensor can be located on the base or on the lid. Current valid
 		values are 'base' and 'lid'.
+
+What:		/sys/bus/iio/devices/iio:deviceX/id
+Date:		Septembre 2017
+KernelVersion:	4.14
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is exposed by the CrOS EC legacy accelerometer
+		driver and represents the sensor ID as exposed by the EC. This
+		ID is used by the Android sensor service hardware abstraction
+		layer (sensor HAL) through the Android container on ChromeOS.

Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935

@@ -14,3 +14,11 @@ Description:
 		Show or set the gain boost of the amp, from 0-31 range.
 		18 = indoors (default)
 		14 = outdoors
+
+What		/sys/bus/iio/devices/iio:deviceX/noise_level_tripped
+Date:		May 2017
+KernelVersion:	4.13
+Contact:	Matt Ranostay <matt.ranostay@konsulko.com>
+Description:
+		When 1 the noise level is over the trip level and not reporting
+		valid data

Documentation/ABI/testing/sysfs-bus-mmc

+What:		/sys/bus/mmc/devices/.../rev
+Date:		October 2017
+Contact:	Jin Qian <jinqian@android.com>
+Description:	Extended CSD revision number

Documentation/ABI/testing/sysfs-bus-thunderbolt

@@ -110,3 +110,51 @@ Description:	When new NVM image is written to the non-active NVM
 		is directly the status value from the DMA configuration
 		based mailbox before the device is power cycled. Writing
 		0 here clears the status.
+
+What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/key
+Date:		Jan 2018
+KernelVersion:	4.15
+Contact:	thunderbolt-software@lists.01.org
+Description:	This contains name of the property directory the XDomain
+		service exposes. This entry describes the protocol in
+		question. Following directories are already reserved by
+		the Apple XDomain specification:
+
+		network:  IP/ethernet over Thunderbolt
+		targetdm: Target disk mode protocol over Thunderbolt
+		extdisp:  External display mode protocol over Thunderbolt
+
+What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/modalias
+Date:		Jan 2018
+KernelVersion:	4.15
+Contact:	thunderbolt-software@lists.01.org
+Description:	Stores the same MODALIAS value emitted by uevent for
+		the XDomain service. Format: tbtsvc:kSpNvNrN
+
+What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcid
+Date:		Jan 2018
+KernelVersion:	4.15
+Contact:	thunderbolt-software@lists.01.org
+Description:	This contains XDomain protocol identifier the XDomain
+		service supports.
+
+What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcvers
+Date:		Jan 2018
+KernelVersion:	4.15
+Contact:	thunderbolt-software@lists.01.org
+Description:	This contains XDomain protocol version the XDomain
+		service supports.
+
+What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcrevs
+Date:		Jan 2018
+KernelVersion:	4.15
+Contact:	thunderbolt-software@lists.01.org
+Description:	This contains XDomain software version the XDomain
+		service supports.
+
+What:		/sys/bus/thunderbolt/devices/<xdomain>.<service>/prtcstns
+Date:		Jan 2018
+KernelVersion:	4.15
+Contact:	thunderbolt-software@lists.01.org
+Description:	This contains XDomain service specific settings as
+		bitmask. Format: %x

Documentation/ABI/testing/sysfs-class-remoteproc

 What:		/sys/class/remoteproc/.../firmware
 Date:		October 2016
-Contact:	Matt Redfearn <matt.redfearn@imgtec.com>
+Contact:	Matt Redfearn <matt.redfearn@mips.com>
 Description:	Remote processor firmware
 
 		Reports the name of the firmware currently loaded to the
@@ -11,7 +11,7 @@ Description:	Remote processor firmware
 
 What:		/sys/class/remoteproc/.../state
 Date:		October 2016
-Contact:	Matt Redfearn <matt.redfearn@imgtec.com>
+Contact:	Matt Redfearn <matt.redfearn@mips.com>
 Description:	Remote processor state
 
 		Reports the state of the remote processor, which will be one of:

Documentation/ABI/testing/sysfs-devices-power

@@ -211,7 +211,9 @@ Description:
 		device, after it has been suspended at run time, from a resume
 		request to the moment the device will be ready to process I/O,
 		in microseconds.  If it is equal to 0, however, this means that
-		the PM QoS resume latency may be arbitrary.
+		the PM QoS resume latency may be arbitrary and the special value
+		"n/a" means that user space cannot accept any resume latency at
+		all for the given device.
 
 		Not all drivers support this attribute.  If it isn't supported,
 		it is not present.
@@ -258,19 +260,3 @@ Description:
 
 		This attribute has no effect on system-wide suspend/resume and
 		hibernation.
-
-What:		/sys/devices/.../power/pm_qos_remote_wakeup
-Date:		September 2012
-Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
-Description:
-		The /sys/devices/.../power/pm_qos_remote_wakeup attribute
-		is used for manipulating the PM QoS "remote wakeup required"
-		flag.  If set, this flag indicates to the kernel that the
-		device is a source of user events that have to be signaled from
-		its low-power states.
-
-		Not all drivers support this attribute.  If it isn't supported,
-		it is not present.
-
-		This attribute has no effect on system-wide suspend/resume and
-		hibernation.

Documentation/ABI/testing/sysfs-devices-system-cpu

@@ -187,7 +187,8 @@ Description:	Processor frequency boosting control
 		This switch controls the boost setting for the whole system.
 		Boosting allows the CPU and the firmware to run at a frequency
 		beyound it's nominal limit.
-		More details can be found in Documentation/cpu-freq/boost.txt
+		More details can be found in
+		Documentation/admin-guide/pm/cpufreq.rst
 
 
 What:		/sys/devices/system/cpu/cpu#/crash_notes
@@ -223,7 +224,8 @@ Description:	Parameters for the Intel P-state driver
 		no_turbo: limits the driver to selecting P states below the turbo
 		frequency range.
 
-		More details can be found in Documentation/cpu-freq/intel-pstate.txt
+		More details can be found in
+		Documentation/admin-guide/pm/intel_pstate.rst
 
 What:		/sys/devices/system/cpu/cpu*/cache/index*/<set_of_attributes_mentioned_below>
 Date:		July 2014(documented, existed before August 2008)

Documentation/ABI/testing/sysfs-driver-w1_ds28e17

+What:		/sys/bus/w1/devices/19-<id>/speed
+Date:		Sep 2017
+KernelVersion:	4.14
+Contact:	Jan Kandziora <jjj@gmx.de>
+Description:	When written, this file sets the I2C speed on the connected
+		DS28E17 chip. When read, it reads the current setting from
+		the DS28E17 chip.
+		Valid values: 100, 400, 900 [kBaud].
+		Default 100, can be set by w1_ds28e17.speed= module parameter.
+Users:		w1_ds28e17 driver
+
+What:		/sys/bus/w1/devices/19-<id>/stretch
+Date:		Sep 2017
+KernelVersion:	4.14
+Contact:	Jan Kandziora <jjj@gmx.de>
+Description:	When written, this file sets the multiplier used to calculate
+		the busy timeout for I2C operations on the connected DS28E17
+		chip. When read, returns the current setting.
+		Valid values: 1 to 9.
+		Default 1, can be set by w1_ds28e17.stretch= module parameter.
+Users:		w1_ds28e17 driver

Documentation/ABI/testing/sysfs-fs-f2fs

@@ -51,6 +51,18 @@ Description:
 		 Controls the dirty page count condition for the in-place-update
 		 policies.
 
+What:		/sys/fs/f2fs/<disk>/min_hot_blocks
+Date:		March 2017
+Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:
+		 Controls the dirty page count condition for redefining hot data.
+
+What:		/sys/fs/f2fs/<disk>/min_ssr_sections
+Date:		October 2017
+Contact:	"Chao Yu" <yuchao0@huawei.com>
+Description:
+		 Controls the fee section threshold to trigger SSR allocation.
+
 What:		/sys/fs/f2fs/<disk>/max_small_discards
 Date:		November 2013
 Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
@@ -102,6 +114,12 @@ Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
 Description:
 		 Controls the idle timing.
 
+What:		/sys/fs/f2fs/<disk>/iostat_enable
+Date:		August 2017
+Contact:	"Chao Yu" <yuchao0@huawei.com>
+Description:
+		 Controls to enable/disable IO stat.
+
 What:		/sys/fs/f2fs/<disk>/ra_nid_pages
 Date:		October 2015
 Contact:	"Chao Yu" <chao2.yu@samsung.com>
@@ -122,6 +140,12 @@ Contact:	"Shuoran Liu" <liushuoran@huawei.com>
 Description:
 		 Shows total written kbytes issued to disk.
 
+What:		/sys/fs/f2fs/<disk>/feature
+Date:		July 2017
+Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:
+		 Shows all enabled features in current device.
+
 What:		/sys/fs/f2fs/<disk>/inject_rate
 Date:		May 2016
 Contact:	"Sheng Yong" <shengyong1@huawei.com>
@@ -138,7 +162,18 @@ What:		/sys/fs/f2fs/<disk>/reserved_blocks
 Date:		June 2017
 Contact:	"Chao Yu" <yuchao0@huawei.com>
 Description:
-		 Controls current reserved blocks in system.
+		 Controls target reserved blocks in system, the threshold
+		 is soft, it could exceed current available user space.
+
+What:		/sys/fs/f2fs/<disk>/current_reserved_blocks
+Date:		October 2017
+Contact:	"Yunlong Song" <yunlong.song@huawei.com>
+Contact:	"Chao Yu" <yuchao0@huawei.com>
+Description:
+		 Shows current reserved blocks in system, it may be temporarily
+		 smaller than target_reserved_blocks, but will gradually
+		 increase to target_reserved_blocks when more free blocks are
+		 freed by user later.
 
 What:		/sys/fs/f2fs/<disk>/gc_urgent
 Date:		August 2017

Documentation/ABI/testing/sysfs-platform-dell-smbios

+What:		/sys/devices/platform/<platform>/tokens/*
+Date:		November 2017
+KernelVersion:	4.15
+Contact:	"Mario Limonciello" <mario.limonciello@dell.com>
+Description:
+		A read-only description of Dell platform tokens
+		available on the machine.
+
+		Each token attribute is available as a pair of
+		sysfs attributes readable by a process with
+		CAP_SYS_ADMIN.
+
+		For example the token ID "5" would be available
+		as the following attributes:
+
+		0005_location
+		0005_value
+
+		Tokens will vary from machine to machine, and
+		only tokens available on that machine will be
+		displayed.

Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt

+What:		/sys/devices/platform/<platform>/force_power
+Date:		September 2017
+KernelVersion:	4.15
+Contact:	"Mario Limonciello" <mario.limonciello@dell.com>
+Description:
+		Modify the platform force power state, influencing
+		Thunderbolt controllers to turn on or off when no
+		devices are connected (write-only)
+		There are two available states:
+		    * 0 -> Force power disabled
+		    * 1 -> Force power enabled

Documentation/ABI/testing/sysfs-power

@@ -18,7 +18,8 @@ Description:
 		Writing one of the above strings to this file causes the system
 		to transition into the corresponding state, if available.
 
-		See Documentation/power/states.txt for more information.
+		See Documentation/admin-guide/pm/sleep-states.rst for more
+		information.
 
 What:		/sys/power/mem_sleep
 Date:		November 2016
@@ -35,7 +36,8 @@ Description:
 		represented by it to be used on subsequent attempts to suspend
 		the system.
 
-		See Documentation/power/states.txt for more information.
+		See Documentation/admin-guide/pm/sleep-states.rst for more
+		information.
 
 What:		/sys/power/disk
 Date:		September 2006

Documentation/IPMI.txt

@@ -81,7 +81,9 @@ If you want the driver to put an event into the event log on a panic,
 enable the 'Generate a panic event to all BMCs on a panic' option.  If
 you want the whole panic string put into the event log using OEM
 events, enable the 'Generate OEM events containing the panic string'
-option.
+option.  You can also enable these dynamically by setting the module
+parameter named "panic_op" in the ipmi_msghandler module to "event"
+or "string".  Setting that parameter to "none" disables this function.
 
 Basic Design
 ------------

Documentation/Makefile

@@ -97,6 +97,9 @@ endif # HAVE_SPHINX
 # The following targets are independent of HAVE_SPHINX, and the rules should
 # work or silently pass without Sphinx.
 
+refcheckdocs:
+	$(Q)cd $(srctree);scripts/documentation-file-ref-check
+
 cleandocs:
 	$(Q)rm -rf $(BUILDDIR)
 	$(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
@@ -109,6 +112,7 @@ dochelp:
 	@echo  '  epubdocs        - EPUB'
 	@echo  '  xmldocs         - XML'
 	@echo  '  linkcheckdocs   - check for broken external links (will connect to external hosts)'
+	@echo  '  refcheckdocs    - check for references to non-existing files under Documentation'
 	@echo  '  cleandocs       - clean all generated files'
 	@echo
 	@echo  '  make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
@@ -116,3 +120,5 @@ dochelp:
 	@echo
 	@echo  '  make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
 	@echo  '  configuration. This is e.g. useful to build with nit-picking config.'
+	@echo
+	@echo  '  Default location for the generated documents is Documentation/output'

Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html

@@ -527,7 +527,7 @@ grace period also drove it to completion.
 This straightforward approach had the disadvantage of needing to
 account for POSIX signals sent to user tasks,
 so more recent implemementations use the Linux kernel's
-<a href="https://www.kernel.org/doc/Documentation/workqueue.txt">workqueues</a>.
+<a href="https://www.kernel.org/doc/Documentation/core-api/workqueue.rst">workqueues</a>.
 
 <p>
 The requesting task still does counter snapshotting and funnel-lock

Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html

+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+        "http://www.w3.org/TR/html4/loose.dtd">
+        <html>
+        <head><title>A Diagram of TREE_RCU's Grace-Period Memory Ordering</title>
+        <meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
+
+<p><img src="TreeRCU-gp.svg" alt="TreeRCU-gp.svg">
+
+</body></html>

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Documentation/admin-guide/README.rst

@@ -350,7 +350,7 @@ If something goes wrong
    help debugging the problem.  The text above the dump is also
    important: it tells something about why the kernel dumped code (in
    the above example, it's due to a bad kernel pointer). More information
-   on making sense of the dump is in Documentation/admin-guide/oops-tracing.rst
+   on making sense of the dump is in Documentation/admin-guide/bug-hunting.rst
 
  - If you compiled the kernel with CONFIG_KALLSYMS you can send the dump
    as is, otherwise you will have to use the ``ksymoops`` program to make

Documentation/arm64/memory.txt

@@ -86,9 +86,9 @@ Translation table lookup with 64KB pages:
  +-------------------------------------------------> [63] TTBR0/1
 
 
-When using KVM, the hypervisor maps kernel pages in EL2, at a fixed
-offset from the kernel VA (top 24bits of the kernel VA set to zero):
+When using KVM without the Virtualization Host Extensions, the hypervisor
+maps kernel pages in EL2 at a fixed offset from the kernel VA. See the
+kern_hyp_va macro for more details.
 
-Start			End			Size		Use
------------------------------------------------------------------------
-0000004000000000	0000007fffffffff	 256GB		kernel objects mapped in HYP
+When using KVM with the Virtualization Host Extensions, no additional
+mappings are created, since the host kernel runs directly in EL2.