Merge linux-block/for-4.3/core into md/for-linux

There were a few conflicts that are fairly easy to resolve.

Signed-off-by: NeilBrown <neilb@suse.com>

.get_maintainer.ignore

@@ -0,0 +1 @@
+Christoph Hellwig <hch@lst.de>

.mailmap

@@ -17,6 +17,7 @@ Aleksey Gorelov <aleksey_gorelov@phoenix.com>
 Al Viro <viro@ftp.linux.org.uk>
 Al Viro <viro@zenIV.linux.org.uk>
 Andreas Herrmann <aherrman@de.ibm.com>
+Andrey Ryabinin <ryabinin.a.a@gmail.com> <a.ryabinin@samsung.com>
 Andrew Morton <akpm@linux-foundation.org>
 Andrew Vasquez <andrew.vasquez@qlogic.com>
 Andy Adamson <andros@citi.umich.edu>

CREDITS

@@ -3219,6 +3219,11 @@ S: 69 rue Dunois
 S: 75013 Paris
 S: France
 
+N: Aleksa Sarai
+E: cyphar@cyphar.com
+W: https://www.cyphar.com/
+D: `pids` cgroup subsystem
+
 N: Dipankar Sarma
 E: dipankar@in.ibm.com
 D: RCU

Documentation/ABI/stable/sysfs-bus-vmbus

@@ -0,0 +1,29 @@
+What:		/sys/bus/vmbus/devices/vmbus_*/id
+Date:		Jul 2009
+KernelVersion:	2.6.31
+Contact:	K. Y. Srinivasan <kys@microsoft.com>
+Description:	The VMBus child_relid of the device's primary channel
+Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/class_id
+Date:		Jul 2009
+KernelVersion:	2.6.31
+Contact:	K. Y. Srinivasan <kys@microsoft.com>
+Description:	The VMBus interface type GUID of the device
+Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/device_id
+Date:		Jul 2009
+KernelVersion:	2.6.31
+Contact:	K. Y. Srinivasan <kys@microsoft.com>
+Description:	The VMBus interface instance GUID of the device
+Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channel_vp_mapping
+Date:		Jul 2015
+KernelVersion:	4.2.0
+Contact:	K. Y. Srinivasan <kys@microsoft.com>
+Description:	The mapping of which primary/sub channels are bound to which
+		Virtual Processors.
+		Format: <channel's child_relid:the bound cpu's number>
+Users:		tools/hv/lsvmbus

Documentation/ABI/testing/configfs-usb-gadget-loopback

@@ -5,4 +5,4 @@ Description:
 		The attributes:
 
 		qlen		- depth of loopback queue
-		bulk_buflen	- buffer length
+		buflen		- buffer length

Documentation/ABI/testing/configfs-usb-gadget-sourcesink

@@ -9,4 +9,4 @@ Description:
 		isoc_maxpacket	- 0 - 1023 (fs), 0 - 1024 (hs/ss)
 		isoc_mult	- 0..2 (hs/ss only)
 		isoc_maxburst	- 0..15 (ss only)
-		qlen		- buffer length
+		buflen		- buffer length

Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x

@@ -112,7 +112,7 @@ KernelVersion:	3.19
 Contact:	Mathieu Poirier <mathieu.poirier@linaro.org>
 Description: 	(RW) Mask to apply to all the context ID comparator.
 
-What:		/sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_val
+What:		/sys/bus/coresight/devices/<memory_map>.[etm|ptm]/ctxid_pid
 Date:		November 2014
 KernelVersion:	3.19
 Contact:	Mathieu Poirier <mathieu.poirier@linaro.org>

Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x

@@ -249,7 +249,7 @@ KernelVersion:	4.01
 Contact:	Mathieu Poirier <mathieu.poirier@linaro.org>
 Description:	(RW) Select which context ID comparator to work with.
 
-What:		/sys/bus/coresight/devices/<memory_map>.etm/ctxid_val
+What:		/sys/bus/coresight/devices/<memory_map>.etm/ctxid_pid
 Date:		April 2015
 KernelVersion:	4.01
 Contact:	Mathieu Poirier <mathieu.poirier@linaro.org>

Documentation/ABI/testing/sysfs-bus-iio

@@ -413,6 +413,11 @@ Description:
 		to compute the calories burnt by the user.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
+What:		/sys/.../iio:deviceX/in_anglvel_scale_available
+What:		/sys/.../iio:deviceX/in_magn_scale_available
+What:		/sys/.../iio:deviceX/in_illuminance_scale_available
+What:		/sys/.../iio:deviceX/in_intensity_scale_available
+What:		/sys/.../iio:deviceX/in_proximity_scale_available
 What:		/sys/.../iio:deviceX/in_voltageX_scale_available
 What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available
 What:		/sys/.../iio:deviceX/out_voltageX_scale_available
@@ -488,7 +493,7 @@ Contact:	linux-iio@vger.kernel.org
 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,
+		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
 		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
 		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
 		100kohm_to_gnd: connected to ground via an 100kOhm resistor,
@@ -498,9 +503,9 @@ Description:
 		outX_powerdown_mode_available. If Y is not present the
 		mode is shared across all outputs.
 
-What:		/sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
+What:		/sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
 What:		/sys/.../iio:deviceX/out_voltage_powerdown_mode_available
-What:		/sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
+What:		/sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
 What:		/sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
@@ -1035,13 +1040,6 @@ Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of scans contained by the buffer.
 
-What:		/sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Bytes per scan.  Due to alignment fun, the scan may be larger
-		than implied directly by the scan_element parameters.
-
 What:		/sys/bus/iio/devices/iio:deviceX/buffer/enable
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org

Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs

@@ -9,3 +9,12 @@ Description:
 		automated testing or in situations, where other trigger methods
 		are not applicable. For example no RTC or spare GPIOs.
 		X is the IIO index of the trigger.
+
+What:		/sys/bus/iio/devices/triggerX/name
+KernelVersion:	2.6.39
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The name attribute holds a description string for the current
+		trigger. In order to associate the trigger with an IIO device
+		one should write this name string to
+		/sys/bus/iio/devices/iio:deviceY/trigger/current_trigger.

Documentation/ABI/testing/sysfs-bus-usb

@@ -114,6 +114,20 @@ Description:
 		enabled for the device. Developer can write y/Y/1 or n/N/0 to
 		the file to enable/disable the feature.
 
+What:		/sys/bus/usb/devices/.../power/usb3_hardware_lpm
+Date:		June 2015
+Contact:	Kevin Strasser <kevin.strasser@linux.intel.com>
+Description:
+		If CONFIG_PM is set and a USB 3.0 lpm-capable device is plugged
+		in to a xHCI host which supports link PM, it will check if U1
+		and U2 exit latencies have been set in the BOS descriptor; if
+		the check is is passed and the host supports USB3 hardware LPM,
+		USB3 hardware LPM will be enabled for the device and the USB
+		device directory will contain a file named
+		power/usb3_hardware_lpm. The file holds a string value (enable
+		or disable) indicating whether or not USB3 hardware LPM is
+		enabled for the device.
+
 What:		/sys/bus/usb/devices/.../removable
 Date:		February 2012
 Contact:	Matthew Garrett <mjg@redhat.com>

Documentation/ABI/testing/sysfs-class-power-twl4030

@@ -0,0 +1,45 @@
+What: /sys/class/power_supply/twl4030_ac/max_current
+      /sys/class/power_supply/twl4030_usb/max_current
+Description:
+	Read/Write limit on current which may
+	be drawn from the ac (Accessory Charger) or
+	USB port.
+
+	Value is in micro-Amps.
+
+	Value is set automatically to an appropriate
+	value when a cable is plugged or unplugged.
+
+	Value can the set by writing to the attribute.
+	The change will only persist until the next
+	plug event.  These event are reported via udev.
+
+
+What: /sys/class/power_supply/twl4030_usb/mode
+Description:
+	Changing mode for USB port.
+	Writing to this can disable charging.
+
+	Possible values are:
+		"auto" - draw power as appropriate for detected
+			 power source and battery status.
+		"off"  - do not draw any power.
+		"continuous"
+		       - activate mode described as "linear" in
+		         TWL data sheets.  This uses whatever
+			 current is available and doesn't switch off
+			 when voltage drops.
+
+			 This is useful for unstable power sources
+			 such as bicycle dynamo, but care should
+			 be taken that battery is not over-charged.
+
+What: /sys/class/power_supply/twl4030_ac/mode
+Description:
+	Changing mode for 'ac' port.
+	Writing to this can disable charging.
+
+	Possible values are:
+		"auto" - draw power as appropriate for detected
+			 power source and battery status.
+		"off"  - do not draw any power.

Documentation/ABI/testing/sysfs-driver-wacom

@@ -77,3 +77,22 @@ Description:
 		The format is also scrambled, like in the USB mode, and it can
 		be summarized by converting 76543210 into GECA6420.
 					    HGFEDCBA      HFDB7531
+
+What:		/sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_remote/unpair_remote
+Date:		July 2015
+Contact:	linux-input@vger.kernel.org
+Description:
+		Writing the character sequence '*' followed by a newline to
+		this file will delete all of the current pairings on the
+		device. Other character sequences are reserved. This file is
+		write only.
+
+What:		/sys/bus/hid/devices/<bus>:<vid>:<pid>.<n>/wacom_remote/<serial_number>/remote_mode
+Date:		July 2015
+Contact:	linux-input@vger.kernel.org
+Description:
+		Reading from this file reports the mode status of the
+		remote as indicated by the LED lights on the device. If no
+		reports have been received from the paired device, reading
+		from this file will report '-1'. The mode is read-only
+		and cannot be set through the driver.

Documentation/CodingStyle

@@ -929,13 +929,11 @@ The C Programming Language, Second Edition
 by Brian W. Kernighan and Dennis M. Ritchie.
 Prentice Hall, Inc., 1988.
 ISBN 0-13-110362-8 (paperback), 0-13-110370-9 (hardback).
-URL: http://cm.bell-labs.com/cm/cs/cbook/
 
 The Practice of Programming
 by Brian W. Kernighan and Rob Pike.
 Addison-Wesley, Inc., 1999.
 ISBN 0-201-61586-X.
-URL: http://cm.bell-labs.com/cm/cs/tpop/
 
 GNU manuals - where in compliance with K&R and this text - for cpp, gcc,
 gcc internals and indent, all available from http://www.gnu.org/manual/

Documentation/DocBook/Makefile

@@ -15,7 +15,7 @@ DOCBOOKS := z8530book.xml device-drivers.xml \
 	    80211.xml debugobjects.xml sh.xml regulator.xml \
 	    alsa-driver-api.xml writing-an-alsa-driver.xml \
 	    tracepoint.xml drm.xml media_api.xml w1.xml \
-	    writing_musb_glue_layer.xml crypto-API.xml
+	    writing_musb_glue_layer.xml crypto-API.xml iio.xml
 
 include Documentation/DocBook/media/Makefile
 
@@ -56,16 +56,19 @@ htmldocs: $(HTML)
 
 MAN := $(patsubst %.xml, %.9, $(BOOKS))
 mandocs: $(MAN)
-	find $(obj)/man -name '*.9' | xargs gzip -f
+	find $(obj)/man -name '*.9' | xargs gzip -nf
 
 installmandocs: mandocs
 	mkdir -p /usr/local/man/man9/
-	install $(obj)/man/*.9.gz /usr/local/man/man9/
+	find $(obj)/man -name '*.9.gz' -printf '%h %f\n' | \
+		sort -k 2 -k 1 | uniq -f 1 | sed -e 's: :/:' | \
+		xargs install -m 644 -t /usr/local/man/man9/
 
 ###
 #External programs used
-KERNELDOC = $(srctree)/scripts/kernel-doc
-DOCPROC   = $(objtree)/scripts/docproc
+KERNELDOCXMLREF = $(srctree)/scripts/kernel-doc-xml-ref
+KERNELDOC       = $(srctree)/scripts/kernel-doc
+DOCPROC         = $(objtree)/scripts/docproc
 
 XMLTOFLAGS = -m $(srctree)/$(src)/stylesheet.xsl
 XMLTOFLAGS += --skip-validation
@@ -89,7 +92,7 @@ define rule_docproc
         ) > $(dir $@).$(notdir $@).cmd
 endef
 
-%.xml: %.tmpl $(KERNELDOC) $(DOCPROC) FORCE
+%.xml: %.tmpl $(KERNELDOC) $(DOCPROC) $(KERNELDOCXMLREF) FORCE
 	$(call if_changed_rule,docproc)
 
 # Tell kbuild to always build the programs
@@ -140,7 +143,20 @@ quiet_cmd_db2html = HTML    $@
 		echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
 		$(patsubst %.html,%,$(notdir $@))</a><p>' > $@
 
-%.html:	%.xml
+###
+# Rules to create an aux XML and .db, and use them to re-process the DocBook XML
+# to fill internal hyperlinks
+       gen_aux_xml = :
+ quiet_gen_aux_xml = echo '  XMLREF  $@'
+silent_gen_aux_xml = :
+%.aux.xml: %.xml
+	@$($(quiet)gen_aux_xml)
+	@rm -rf $@
+	@(cat $< | egrep "^<refentry id" | egrep -o "\".*\"" | cut -f 2 -d \" > $<.db)
+	@$(KERNELDOCXMLREF) -db $<.db $< > $@
+.PRECIOUS: %.aux.xml
+
+%.html:	%.aux.xml
 	@(which xmlto > /dev/null 2>&1) || \
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
@@ -150,12 +166,12 @@ quiet_cmd_db2html = HTML    $@
             cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
 
 quiet_cmd_db2man = MAN     $@
-      cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; fi
+      cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man/$(*F) $< ; fi
 %.9 : %.xml
 	@(which xmlto > /dev/null 2>&1) || \
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
-	$(Q)mkdir -p $(obj)/man
+	$(Q)mkdir -p $(obj)/man/$(*F)
 	$(call cmd,db2man)
 	@touch $@
 
@@ -209,15 +225,18 @@ dochelp:
 ###
 # Temporary files left by various tools
 clean-files := $(DOCBOOKS) \
-	$(patsubst %.xml, %.dvi,  $(DOCBOOKS)) \
-	$(patsubst %.xml, %.aux,  $(DOCBOOKS)) \
-	$(patsubst %.xml, %.tex,  $(DOCBOOKS)) \
-	$(patsubst %.xml, %.log,  $(DOCBOOKS)) \
-	$(patsubst %.xml, %.out,  $(DOCBOOKS)) \
-	$(patsubst %.xml, %.ps,   $(DOCBOOKS)) \
-	$(patsubst %.xml, %.pdf,  $(DOCBOOKS)) \
-	$(patsubst %.xml, %.html, $(DOCBOOKS)) \
-	$(patsubst %.xml, %.9,    $(DOCBOOKS)) \
+	$(patsubst %.xml, %.dvi,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.aux,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.tex,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.log,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.out,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.ps,      $(DOCBOOKS)) \
+	$(patsubst %.xml, %.pdf,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.html,    $(DOCBOOKS)) \
+	$(patsubst %.xml, %.9,       $(DOCBOOKS)) \
+	$(patsubst %.xml, %.aux.xml, $(DOCBOOKS)) \
+	$(patsubst %.xml, %.xml.db,  $(DOCBOOKS)) \
+	$(patsubst %.xml, %.xml,     $(DOCBOOKS)) \
 	$(index)
 
 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man