Merge tag 'v3.11-rc2' into core/locking

Merge in Linux 3.11-rc2 before moving on with new work.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Documentation/ABI/stable/sysfs-driver-ib_srp

@@ -54,6 +54,13 @@ Description:	Interface for making ib_srp connect to a new target.
 		  ib_srp. Specifying a value that exceeds cmd_sg_entries is
 		  only safe with partial memory descriptor list support enabled
 		  (allow_ext_sg=1).
+		* comp_vector, a number in the range 0..n-1 specifying the
+		  MSI-X completion vector. Some HCA's allocate multiple (n)
+		  MSI-X vectors per HCA port. If the IRQ affinity masks of
+		  these interrupts have been configured such that each MSI-X
+		  interrupt is handled by a different CPU then the comp_vector
+		  parameter can be used to spread the SRP completion workload
+		  over multiple CPU's.
 
 What:		/sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev
 Date:		January 2, 2006

Documentation/ABI/stable/sysfs-module

@@ -4,9 +4,13 @@ Description:
 
 	/sys/module/MODULENAME
 		The name of the module that is in the kernel.  This
-		module name will show up either if the module is built
-		directly into the kernel, or if it is loaded as a
-		dynamic module.
+		module name will always show up if the module is loaded as a
+		dynamic module.  If it is built directly into the kernel, it
+		will only show up if it has a version or at least one
+		parameter.
+
+		Note: The conditions of creation in the built-in case are not
+		by design and may be removed in the future.
 
 	/sys/module/MODULENAME/parameters
 		This directory contains individual files that are each

Documentation/ABI/testing/sysfs-bus-event_source-devices-events

@@ -29,7 +29,7 @@ Description:	Generic performance monitoring events
 
 What: 		/sys/devices/cpu/events/PM_1PLUS_PPC_CMPL
 		/sys/devices/cpu/events/PM_BRU_FIN
-		/sys/devices/cpu/events/PM_BRU_MPRED
+		/sys/devices/cpu/events/PM_BR_MPRED
 		/sys/devices/cpu/events/PM_CMPLU_STALL
 		/sys/devices/cpu/events/PM_CMPLU_STALL_BRU
 		/sys/devices/cpu/events/PM_CMPLU_STALL_DCACHE_MISS

Documentation/ABI/testing/sysfs-class-pwm

@@ -0,0 +1,79 @@
+What:		/sys/class/pwm/
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		The pwm/ class sub-directory belongs to the Generic PWM
+		Framework and provides a sysfs interface for using PWM
+		channels.
+
+What:		/sys/class/pwm/pwmchipN/
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		A /sys/class/pwm/pwmchipN directory is created for each
+		probed PWM controller/chip where N is the base of the
+		PWM chip.
+
+What:		/sys/class/pwm/pwmchipN/npwm
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		The number of PWM channels supported by the PWM chip.
+
+What:		/sys/class/pwm/pwmchipN/export
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		Exports a PWM channel from the PWM chip for sysfs control.
+		Value is between 0 and /sys/class/pwm/pwmchipN/npwm - 1.
+
+What:		/sys/class/pwm/pwmchipN/unexport
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		Unexports a PWM channel.
+
+What:		/sys/class/pwm/pwmchipN/pwmX
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		A /sys/class/pwm/pwmchipN/pwmX directory is created for
+		each exported PWM channel where X is the exported PWM
+		channel number.
+
+What:		/sys/class/pwm/pwmchipN/pwmX/period
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		Sets the PWM signal period in nanoseconds.
+
+What:		/sys/class/pwm/pwmchipN/pwmX/duty_cycle
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		Sets the PWM signal duty cycle in nanoseconds.
+
+What:		/sys/class/pwm/pwmchipN/pwmX/polarity
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		Sets the output polarity of the PWM signal to "normal" or
+		"inversed".
+
+What:		/sys/class/pwm/pwmchipN/pwmX/enable
+Date:		May 2013
+KernelVersion:	3.11
+Contact:	H Hartley Sweeten <hsweeten@visionengravers.com>
+Description:
+		Enable/disable the PWM signal.
+		0 is disabled
+		1 is enabled

Documentation/ABI/testing/sysfs-devices-edac

@@ -77,7 +77,7 @@ Description:	Read/Write attribute file that controls memory scrubbing.
 
 What:		/sys/devices/system/edac/mc/mc*/max_location
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This attribute file displays the information about the last
 		available memory slot in this memory controller. It is used by
@@ -85,7 +85,7 @@ Description:	This attribute file displays the information about the last
 
 What:		/sys/devices/system/edac/mc/mc*/(dimm|rank)*/size
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This attribute file will display the size of dimm or rank.
 		For dimm*/size, this is the size, in MB of the DIMM memory
@@ -96,14 +96,14 @@ Description:	This attribute file will display the size of dimm or rank.
 
 What:		/sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_dev_type
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This attribute file will display what type of DRAM device is
 		being utilized on this DIMM (x1, x2, x4, x8, ...).
 
 What:		/sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_edac_mode
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This attribute file will display what type of Error detection
 		and correction is being utilized. For example: S4ECD4ED would
@@ -111,7 +111,7 @@ Description:	This attribute file will display what type of Error detection
 
 What:		/sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_label
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This control file allows this DIMM to have a label assigned
 		to it. With this label in the module, when errors occur
@@ -126,14 +126,14 @@ Description:	This control file allows this DIMM to have a label assigned
 
 What:		/sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_location
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This attribute file will display the location (csrow/channel,
 		branch/channel/slot or channel/slot) of the dimm or rank.
 
 What:		/sys/devices/system/edac/mc/mc*/(dimm|rank)*/dimm_mem_type
 Date:		April 2012
-Contact:	Mauro Carvalho Chehab <mchehab@redhat.com>
+Contact:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 		linux-edac@vger.kernel.org
 Description:	This attribute file will display what type of memory is
 		currently on this csrow. Normally, either buffered or

Documentation/ABI/testing/sysfs-driver-intel-rapid-start

@@ -0,0 +1,21 @@
+What:		/sys/bus/acpi/intel-rapid-start/wakeup_events
+Date:		July 2, 2013
+KernelVersion:	3.11
+Contact:	Matthew Garrett <mjg59@srcf.ucam.org>
+Description:	An integer representing a set of wakeup events as follows:
+		1: Wake to enter hibernation when the wakeup timer expires
+		2: Wake to enter hibernation when the battery reaches a
+		critical level
+
+		These values are ORed together. For example, a value of 3
+		indicates that the system will wake to enter hibernation when
+		either the wakeup timer expires or the battery reaches a
+		critical level.
+
+What:		/sys/bus/acpi/intel-rapid-start/wakeup_time
+Date:		July 2, 2013
+KernelVersion:	3.11
+Contact:	Matthew Garrett <mjg59@srcf.ucam.org>
+Description:	An integer representing the length of time the system will
+		remain asleep before waking up to enter hibernation.
+		This value is in minutes.

Documentation/DocBook/80211.tmpl

@@ -127,14 +127,11 @@
 !Finclude/net/cfg80211.h cfg80211_ibss_params
 !Finclude/net/cfg80211.h cfg80211_connect_params
 !Finclude/net/cfg80211.h cfg80211_pmksa
-!Finclude/net/cfg80211.h cfg80211_send_rx_auth
-!Finclude/net/cfg80211.h cfg80211_send_auth_timeout
-!Finclude/net/cfg80211.h cfg80211_send_rx_assoc
-!Finclude/net/cfg80211.h cfg80211_send_assoc_timeout
-!Finclude/net/cfg80211.h cfg80211_send_deauth
-!Finclude/net/cfg80211.h __cfg80211_send_deauth
-!Finclude/net/cfg80211.h cfg80211_send_disassoc
-!Finclude/net/cfg80211.h __cfg80211_send_disassoc
+!Finclude/net/cfg80211.h cfg80211_rx_mlme_mgmt
+!Finclude/net/cfg80211.h cfg80211_auth_timeout
+!Finclude/net/cfg80211.h cfg80211_rx_assoc_resp
+!Finclude/net/cfg80211.h cfg80211_assoc_timeout
+!Finclude/net/cfg80211.h cfg80211_tx_mlme_mgmt
 !Finclude/net/cfg80211.h cfg80211_ibss_joined
 !Finclude/net/cfg80211.h cfg80211_connect_result
 !Finclude/net/cfg80211.h cfg80211_roamed

Documentation/DocBook/media/v4l/compat.xml

@@ -2254,7 +2254,7 @@ video encoding.</para>
       <orderedlist>
 	<listitem>
 	  <para>The <constant>VIDIOC_G_CHIP_IDENT</constant> ioctl was renamed
-to <constant>VIDIOC_G_CHIP_IDENT_OLD</constant> and &VIDIOC-DBG-G-CHIP-IDENT;
+to <constant>VIDIOC_G_CHIP_IDENT_OLD</constant> and <constant>VIDIOC_DBG_G_CHIP_IDENT</constant>
 was introduced in its place. The old struct <structname>v4l2_chip_ident</structname>
 was renamed to <structname id="v4l2-chip-ident-old">v4l2_chip_ident_old</structname>.</para>
 	</listitem>
@@ -2513,6 +2513,16 @@ that used it. It was originally scheduled for removal in 2.6.35.
       </orderedlist>
     </section>
 
+    <section>
+      <title>V4L2 in Linux 3.11</title>
+      <orderedlist>
+        <listitem>
+	  <para>Remove obsolete <constant>VIDIOC_DBG_G_CHIP_IDENT</constant> ioctl.
+	  </para>
+        </listitem>
+      </orderedlist>
+    </section>
+
     <section id="other">
       <title>Relation of V4L2 to other Linux multimedia APIs</title>
 
@@ -2596,7 +2606,7 @@ and may change in the future.</para>
 ioctls.</para>
         </listitem>
         <listitem>
-	  <para>&VIDIOC-DBG-G-CHIP-IDENT; ioctl.</para>
+	  <para>&VIDIOC-DBG-G-CHIP-INFO; ioctl.</para>
         </listitem>
         <listitem>
 	  <para>&VIDIOC-ENUM-DV-TIMINGS;, &VIDIOC-QUERY-DV-TIMINGS; and

Documentation/DocBook/media/v4l/v4l2.xml

@@ -140,6 +140,14 @@ structs, ioctls) must be noted in more detail in the history chapter
 (compat.xml), along with the possible impact on existing drivers and
 applications. -->
 
+      <revision>
+	<revnumber>3.11</revnumber>
+	<date>2013-05-26</date>
+	<authorinitials>hv</authorinitials>
+	<revremark>Remove obsolete VIDIOC_DBG_G_CHIP_IDENT ioctl.
+	</revremark>
+      </revision>
+
       <revision>
 	<revnumber>3.10</revnumber>
 	<date>2013-03-25</date>
@@ -493,7 +501,7 @@ and discussions on the V4L mailing list.</revremark>
 </partinfo>
 
 <title>Video for Linux Two API Specification</title>
- <subtitle>Revision 3.10</subtitle>
+ <subtitle>Revision 3.11</subtitle>
 
   <chapter id="common">
     &sub-common;
@@ -547,7 +555,6 @@ and discussions on the V4L mailing list.</revremark>
     <!-- All ioctls go here. -->
     &sub-create-bufs;
     &sub-cropcap;
-    &sub-dbg-g-chip-ident;
     &sub-dbg-g-chip-info;
     &sub-dbg-g-register;
     &sub-decoder-cmd;

Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-ident.xml

@@ -1,271 +0,0 @@
-<refentry id="vidioc-dbg-g-chip-ident">
-  <refmeta>
-    <refentrytitle>ioctl VIDIOC_DBG_G_CHIP_IDENT</refentrytitle>
-    &manvol;
-  </refmeta>
-
-  <refnamediv>
-    <refname>VIDIOC_DBG_G_CHIP_IDENT</refname>
-    <refpurpose>Identify the chips on a TV card</refpurpose>
-  </refnamediv>
-
-  <refsynopsisdiv>
-    <funcsynopsis>
-      <funcprototype>
-	<funcdef>int <function>ioctl</function></funcdef>
-	<paramdef>int <parameter>fd</parameter></paramdef>
-	<paramdef>int <parameter>request</parameter></paramdef>
-	<paramdef>struct v4l2_dbg_chip_ident
-*<parameter>argp</parameter></paramdef>
-      </funcprototype>
-    </funcsynopsis>
-  </refsynopsisdiv>
-
-  <refsect1>
-    <title>Arguments</title>
-
-    <variablelist>
-      <varlistentry>
-	<term><parameter>fd</parameter></term>
-	<listitem>
-	  <para>&fd;</para>
-	</listitem>
-      </varlistentry>
-      <varlistentry>
-	<term><parameter>request</parameter></term>
-	<listitem>
-	  <para>VIDIOC_DBG_G_CHIP_IDENT</para>
-	</listitem>
-      </varlistentry>
-      <varlistentry>
-	<term><parameter>argp</parameter></term>
-	<listitem>
-	  <para></para>
-	</listitem>
-      </varlistentry>
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>Description</title>
-
-    <note>
-      <title>Experimental</title>
-
-      <para>This is an <link
-linkend="experimental">experimental</link> interface and may change in
-the future.</para>
-    </note>
-
-    <para>For driver debugging purposes this ioctl allows test
-applications to query the driver about the chips present on the TV
-card. Regular applications must not use it. When you found a chip
-specific bug, please contact the linux-media mailing list (&v4l-ml;)
-so it can be fixed.</para>
-
-    <para>To query the driver applications must initialize the
-<structfield>match.type</structfield> and
-<structfield>match.addr</structfield> or <structfield>match.name</structfield>
-fields of a &v4l2-dbg-chip-ident;
-and call <constant>VIDIOC_DBG_G_CHIP_IDENT</constant> with a pointer to
-this structure. On success the driver stores information about the
-selected chip in the <structfield>ident</structfield> and
-<structfield>revision</structfield> fields. On failure the structure
-remains unchanged.</para>
-
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_HOST</constant>,
-<structfield>match.addr</structfield> selects the nth non-&i2c; chip
-on the TV card. You can enumerate all chips by starting at zero and
-incrementing <structfield>match.addr</structfield> by one until
-<constant>VIDIOC_DBG_G_CHIP_IDENT</constant> fails with an &EINVAL;.
-The number zero always selects the host chip, &eg; the chip connected
-to the PCI or USB bus.</para>
-
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_I2C_DRIVER</constant>,
-<structfield>match.name</structfield> contains the I2C driver name.
-For instance
-<constant>"saa7127"</constant> will match any chip
-supported by the saa7127 driver, regardless of its &i2c; bus address.
-When multiple chips supported by the same driver are present, the
-ioctl will return <constant>V4L2_IDENT_AMBIGUOUS</constant> in the
-<structfield>ident</structfield> field.</para>
-
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_I2C_ADDR</constant>,
-<structfield>match.addr</structfield> selects a chip by its 7 bit
-&i2c; bus address.</para>
-
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_AC97</constant>,
-<structfield>match.addr</structfield> selects the nth AC97 chip
-on the TV card. You can enumerate all chips by starting at zero and
-incrementing <structfield>match.addr</structfield> by one until
-<constant>VIDIOC_DBG_G_CHIP_IDENT</constant> fails with an &EINVAL;.</para>
-
-    <para>On success, the <structfield>ident</structfield> field will
-contain a chip ID from the Linux
-<filename>media/v4l2-chip-ident.h</filename> header file, and the
-<structfield>revision</structfield> field will contain a driver
-specific value, or zero if no particular revision is associated with
-this chip.</para>
-
-    <para>When the driver could not identify the selected chip,
-<structfield>ident</structfield> will contain
-<constant>V4L2_IDENT_UNKNOWN</constant>. When no chip matched
-the ioctl will succeed but the
-<structfield>ident</structfield> field will contain
-<constant>V4L2_IDENT_NONE</constant>. If multiple chips matched,
-<structfield>ident</structfield> will contain
-<constant>V4L2_IDENT_AMBIGUOUS</constant>. In all these cases the
-<structfield>revision</structfield> field remains unchanged.</para>
-
-    <para>This ioctl is optional, not all drivers may support it. It
-was introduced in Linux 2.6.21, but the API was changed to the
-one described here in 2.6.29.</para>
-
-    <para>We recommended the <application>v4l2-dbg</application>
-utility over calling this ioctl directly. It is available from the
-LinuxTV v4l-dvb repository; see <ulink
-url="http://linuxtv.org/repo/">http://linuxtv.org/repo/</ulink> for
-access instructions.</para>
-
-    <!-- Note for convenience vidioc-dbg-g-register.sgml
-	 contains a duplicate of this table. -->
-    <table pgwide="1" frame="none" id="ident-v4l2-dbg-match">
-      <title>struct <structname>v4l2_dbg_match</structname></title>
-      <tgroup cols="4">
-	&cs-ustr;
-	<tbody valign="top">
-	  <row>
-	    <entry>__u32</entry>
-	    <entry><structfield>type</structfield></entry>
-	    <entry>See <xref linkend="ident-chip-match-types" /> for a list of
-possible types.</entry>
-	  </row>
-	  <row>
-	    <entry>union</entry>
-	    <entry>(anonymous)</entry>
-	  </row>
-	  <row>
-	    <entry></entry>
-	    <entry>__u32</entry>
-	    <entry><structfield>addr</structfield></entry>
-	    <entry>Match a chip by this number, interpreted according
-to the <structfield>type</structfield> field.</entry>
-	  </row>
-	  <row>
-	    <entry></entry>
-	    <entry>char</entry>
-	    <entry><structfield>name[32]</structfield></entry>
-	    <entry>Match a chip by this name, interpreted according
-to the <structfield>type</structfield> field.</entry>
-	  </row>
-	</tbody>
-      </tgroup>
-    </table>
-
-    <table pgwide="1" frame="none" id="v4l2-dbg-chip-ident">
-      <title>struct <structname>v4l2_dbg_chip_ident</structname></title>
-      <tgroup cols="3">
-	&cs-str;
-	<tbody valign="top">
-	  <row>
-	    <entry>struct v4l2_dbg_match</entry>
-	    <entry><structfield>match</structfield></entry>
-	    <entry>How to match the chip, see <xref linkend="ident-v4l2-dbg-match" />.</entry>
-	  </row>
-	  <row>
-	    <entry>__u32</entry>
-	    <entry><structfield>ident</structfield></entry>
-	    <entry>A chip identifier as defined in the Linux
-<filename>media/v4l2-chip-ident.h</filename> header file, or one of
-the values from <xref linkend="chip-ids" />.</entry>
-	  </row>
-	  <row>
-	    <entry>__u32</entry>
-	    <entry><structfield>revision</structfield></entry>
-	    <entry>A chip revision, chip and driver specific.</entry>
-	  </row>
-	</tbody>
-      </tgroup>
-    </table>
-
-    <!-- Note for convenience vidioc-dbg-g-register.sgml
-	 contains a duplicate of this table. -->
-    <table pgwide="1" frame="none" id="ident-chip-match-types">
-      <title>Chip Match Types</title>
-      <tgroup cols="3">
-	&cs-def;
-	<tbody valign="top">
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_BRIDGE</constant></entry>
-	    <entry>0</entry>
-	    <entry>Match the nth chip on the card, zero for the
-	    bridge chip. Does not match sub-devices.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_I2C_DRIVER</constant></entry>
-	    <entry>1</entry>
-	    <entry>Match an &i2c; chip by its driver name.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_I2C_ADDR</constant></entry>
-	    <entry>2</entry>
-	    <entry>Match a chip by its 7 bit &i2c; bus address.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_AC97</constant></entry>
-	    <entry>3</entry>
-	    <entry>Match the nth anciliary AC97 chip.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_SUBDEV</constant></entry>
-	    <entry>4</entry>
-	    <entry>Match the nth sub-device. Can't be used with this ioctl.</entry>
-	  </row>
-	</tbody>
-      </tgroup>
-    </table>
-
-    <!-- This is an anonymous enum in media/v4l2-chip-ident.h. -->
-    <table pgwide="1" frame="none" id="chip-ids">
-      <title>Chip Identifiers</title>
-      <tgroup cols="3">
-	&cs-def;
-	<tbody valign="top">
-	  <row>
-	    <entry><constant>V4L2_IDENT_NONE</constant></entry>
-	    <entry>0</entry>
-	    <entry>No chip matched.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_IDENT_AMBIGUOUS</constant></entry>
-	    <entry>1</entry>
-	    <entry>Multiple chips matched.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_IDENT_UNKNOWN</constant></entry>
-	    <entry>2</entry>
-	    <entry>A chip is present at this address, but the driver
-could not identify it.</entry>
-	  </row>
-	</tbody>
-      </tgroup>
-    </table>
-  </refsect1>
-
-  <refsect1>
-    &return-value;
-
-    <variablelist>
-      <varlistentry>
-	<term><errorcode>EINVAL</errorcode></term>
-	<listitem>
-	  <para>The <structfield>match_type</structfield> is invalid.</para>
-	</listitem>
-      </varlistentry>
-     </variablelist>
-  </refsect1>
-</refentry>

Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-info.xml

@@ -73,8 +73,7 @@ fields of a &v4l2-dbg-chip-info;
 and call <constant>VIDIOC_DBG_G_CHIP_INFO</constant> with a pointer to
 this structure. On success the driver stores information about the
 selected chip in the <structfield>name</structfield> and
-<structfield>flags</structfield> fields. On failure the structure
-remains unchanged.</para>
+<structfield>flags</structfield> fields.</para>
 
     <para>When <structfield>match.type</structfield> is
 <constant>V4L2_CHIP_MATCH_BRIDGE</constant>,
@@ -132,7 +131,7 @@ to the <structfield>type</structfield> field.</entry>
 	    <entry>char</entry>
 	    <entry><structfield>name[32]</structfield></entry>
 	    <entry>Match a chip by this name, interpreted according
-to the <structfield>type</structfield> field.</entry>
+to the <structfield>type</structfield> field. Currently unused.</entry>
 	  </row>
 	</tbody>
       </tgroup>
@@ -182,21 +181,6 @@ is set, then the driver supports reading registers from the device. If
 	    <entry>Match the nth chip on the card, zero for the
 	    bridge chip. Does not match sub-devices.</entry>
 	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_I2C_DRIVER</constant></entry>
-	    <entry>1</entry>
-	    <entry>Match an &i2c; chip by its driver name. Can't be used with this ioctl.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_I2C_ADDR</constant></entry>
-	    <entry>2</entry>
-	    <entry>Match a chip by its 7 bit &i2c; bus address. Can't be used with this ioctl.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_AC97</constant></entry>
-	    <entry>3</entry>
-	    <entry>Match the nth anciliary AC97 chip. Can't be used with this ioctl.</entry>
-	  </row>
 	  <row>
 	    <entry><constant>V4L2_CHIP_MATCH_SUBDEV</constant></entry>
 	    <entry>4</entry>

Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml

@@ -76,7 +76,7 @@ compiled with the <constant>CONFIG_VIDEO_ADV_DEBUG</constant> option
 to enable these ioctls.</para>
 
     <para>To write a register applications must initialize all fields
-of a &v4l2-dbg-register; and call
+of a &v4l2-dbg-register; except for <structfield>size</structfield> and call
 <constant>VIDIOC_DBG_S_REGISTER</constant> with a pointer to this
 structure. The <structfield>match.type</structfield> and
 <structfield>match.addr</structfield> or <structfield>match.name</structfield>
@@ -91,8 +91,8 @@ written into the register.</para>
 <structfield>reg</structfield> fields, and call
 <constant>VIDIOC_DBG_G_REGISTER</constant> with a pointer to this
 structure. On success the driver stores the register value in the
-<structfield>val</structfield> field. On failure the structure remains
-unchanged.</para>
+<structfield>val</structfield> field and the size (in bytes) of the
+value in <structfield>size</structfield>.</para>
 
     <para>When <structfield>match.type</structfield> is
 <constant>V4L2_CHIP_MATCH_BRIDGE</constant>,
@@ -101,40 +101,10 @@ on the TV card.  The number zero always selects the host chip, &eg; the
 chip connected to the PCI or USB bus. You can find out which chips are
 present with the &VIDIOC-DBG-G-CHIP-INFO; ioctl.</para>
 
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_I2C_DRIVER</constant>,
-<structfield>match.name</structfield> contains the I2C driver name.
-For instance
-<constant>"saa7127"</constant> will match any chip
-supported by the saa7127 driver, regardless of its &i2c; bus address.
-When multiple chips supported by the same driver are present, the
-effect of these ioctls is undefined. Again with the
-&VIDIOC-DBG-G-CHIP-INFO; ioctl you can find out which &i2c; chips are
-present.</para>
-
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_I2C_ADDR</constant>,
-<structfield>match.addr</structfield> selects a chip by its 7 bit &i2c;
-bus address.</para>
-
-    <para>When <structfield>match.type</structfield> is
-<constant>V4L2_CHIP_MATCH_AC97</constant>,
-<structfield>match.addr</structfield> selects the nth AC97 chip
-on the TV card.</para>
-
     <para>When <structfield>match.type</structfield> is
 <constant>V4L2_CHIP_MATCH_SUBDEV</constant>,
 <structfield>match.addr</structfield> selects the nth sub-device.</para>
 
-    <note>
-      <title>Success not guaranteed</title>
-
-      <para>Due to a flaw in the Linux &i2c; bus driver these ioctls may
-return successfully without actually reading or writing a register. To
-catch the most likely failure we recommend a &VIDIOC-DBG-G-CHIP-INFO;
-call confirming the presence of the selected &i2c; chip.</para>
-    </note>
-
     <para>These ioctls are optional, not all drivers may support them.
 However when a driver supports these ioctls it must also support
 &VIDIOC-DBG-G-CHIP-INFO;. Conversely it may support
@@ -150,7 +120,7 @@ LinuxTV v4l-dvb repository; see <ulink
 url="http://linuxtv.org/repo/">http://linuxtv.org/repo/</ulink> for
 access instructions.</para>
 
-    <!-- Note for convenience vidioc-dbg-g-chip-ident.sgml
+    <!-- Note for convenience vidioc-dbg-g-chip-info.sgml
 	 contains a duplicate of this table. -->
     <table pgwide="1" frame="none" id="v4l2-dbg-match">
       <title>struct <structname>v4l2_dbg_match</structname></title>
@@ -160,7 +130,7 @@ access instructions.</para>
 	  <row>
 	    <entry>__u32</entry>
 	    <entry><structfield>type</structfield></entry>
-	    <entry>See <xref linkend="ident-chip-match-types" /> for a list of
+	    <entry>See <xref linkend="chip-match-types" /> for a list of
 possible types.</entry>
 	  </row>
 	  <row>
@@ -179,7 +149,7 @@ to the <structfield>type</structfield> field.</entry>
 	    <entry>char</entry>
 	    <entry><structfield>name[32]</structfield></entry>
 	    <entry>Match a chip by this name, interpreted according
-to the <structfield>type</structfield> field.</entry>
+to the <structfield>type</structfield> field. Currently unused.</entry>
 	  </row>
 	</tbody>
       </tgroup>
@@ -198,6 +168,11 @@ to the <structfield>type</structfield> field.</entry>
 	    <entry><structfield>match</structfield></entry>
 	    <entry>How to match the chip, see <xref linkend="v4l2-dbg-match" />.</entry>
 	  </row>
+	  <row>
+	    <entry>__u32</entry>
+	    <entry><structfield>size</structfield></entry>
+	    <entry>The register size in bytes.</entry>
+	  </row>
 	  <row>
 	    <entry>__u64</entry>
 	    <entry><structfield>reg</structfield></entry>
@@ -213,7 +188,7 @@ register.</entry>
       </tgroup>
     </table>
 
-    <!-- Note for convenience vidioc-dbg-g-chip-ident.sgml
+    <!-- Note for convenience vidioc-dbg-g-chip-info.sgml
 	 contains a duplicate of this table. -->
     <table pgwide="1" frame="none" id="chip-match-types">
       <title>Chip Match Types</title>
@@ -226,21 +201,6 @@ register.</entry>
 	    <entry>Match the nth chip on the card, zero for the
 	    bridge chip. Does not match sub-devices.</entry>
 	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_I2C_DRIVER</constant></entry>
-	    <entry>1</entry>
-	    <entry>Match an &i2c; chip by its driver name.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_I2C_ADDR</constant></entry>
-	    <entry>2</entry>
-	    <entry>Match a chip by its 7 bit &i2c; bus address.</entry>
-	  </row>
-	  <row>
-	    <entry><constant>V4L2_CHIP_MATCH_AC97</constant></entry>
-	    <entry>3</entry>
-	    <entry>Match the nth anciliary AC97 chip.</entry>
-	  </row>
 	  <row>
 	    <entry><constant>V4L2_CHIP_MATCH_SUBDEV</constant></entry>
 	    <entry>4</entry>

Documentation/DocBook/media/v4l/vidioc-querystd.xml

@@ -54,7 +54,8 @@ standard automatically. To do so, applications call <constant>
 VIDIOC_QUERYSTD</constant> with a pointer to a &v4l2-std-id; type. The
 driver stores here a set of candidates, this can be a single flag or a
 set of supported standards if for example the hardware can only
-distinguish between 50 and 60 Hz systems. When detection is not
+distinguish between 50 and 60 Hz systems. If no signal was detected,
+then the driver will return V4L2_STD_UNKNOWN. When detection is not
 possible or fails, the set must contain all standards supported by the
 current video input or output.</para>
 

Documentation/cgroups/blkio-controller.txt

@@ -94,11 +94,13 @@ Throttling/Upper Limit policy
 
 Hierarchical Cgroups
 ====================
-- Currently only CFQ supports hierarchical groups. For throttling,
-  cgroup interface does allow creation of hierarchical cgroups and
-  internally it treats them as flat hierarchy.
 
-  If somebody created a hierarchy like as follows.
+Both CFQ and throttling implement hierarchy support; however,
+throttling's hierarchy support is enabled iff "sane_behavior" is
+enabled from cgroup side, which currently is a development option and
+not publicly available.
+
+If somebody created a hierarchy like as follows.
 
 			root
 			/  \
@@ -106,21 +108,20 @@ Hierarchical Cgroups
 			|
 		     test3
 
-  CFQ will handle the hierarchy correctly but and throttling will
-  practically treat all groups at same level. For details on CFQ
-  hierarchy support, refer to Documentation/block/cfq-iosched.txt.
-  Throttling will treat the hierarchy as if it looks like the
-  following.
+CFQ by default and throttling with "sane_behavior" will handle the
+hierarchy correctly.  For details on CFQ hierarchy support, refer to
+Documentation/block/cfq-iosched.txt.  For throttling, all limits apply
+to the whole subtree while all statistics are local to the IOs
+directly generated by tasks in that cgroup.
+
+Throttling without "sane_behavior" enabled from cgroup side will
+practically treat all groups at same level as if it looks like the
+following.
 
 				pivot
 			     /  /   \  \
 			root  test1 test2  test3
 
-  Nesting cgroups, while allowed, isn't officially supported and blkio
-  genereates warning when cgroups nest. Once throttling implements
-  hierarchy support, hierarchy will be supported and the warning will
-  be removed.
-
 Various user visible config options
 ===================================
 CONFIG_BLK_CGROUP

Documentation/coccinelle.txt

@@ -6,15 +6,17 @@ Copyright 2010 Gilles Muller <Gilles.Muller@lip6.fr>
  Getting Coccinelle
 ~~~~~~~~~~~~~~~~~~~~
 
-The semantic patches included in the kernel use the 'virtual rule'
-feature which was introduced in Coccinelle version 0.1.11.
+The semantic patches included in the kernel use features and options
+which are provided by Coccinelle version 1.0.0-rc11 and above.
+Using earlier versions will fail as the option names used by
+the Coccinelle files and coccicheck have been updated.
 
-Coccinelle (>=0.2.0) is available through the package manager
+Coccinelle is available through the package manager
 of many distributions, e.g. :
 
- - Debian (>=squeeze)
- - Fedora (>=13)
- - Ubuntu (>=10.04 Lucid Lynx)
+ - Debian
+ - Fedora
+ - Ubuntu
  - OpenSUSE
  - Arch Linux
  - NetBSD
@@ -36,11 +38,6 @@ as a regular user, and install it with
 
         sudo make install
 
-The semantic patches in the kernel will work best with Coccinelle version
-0.2.4 or later.  Using earlier versions may incur some parse errors in the
-semantic patch code, but any results that are obtained should still be
-correct.
-
  Using Coccinelle on the Linux kernel
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -48,7 +45,7 @@ A Coccinelle-specific target is defined in the top level
 Makefile. This target is named 'coccicheck' and calls the 'coccicheck'
 front-end in the 'scripts' directory.
 
-Four modes are defined: patch, report, context, and org. The mode to
+Four basic modes are defined: patch, report, context, and org. The mode to
 use is specified by setting the MODE variable with 'MODE=<mode>'.
 
 'patch' proposes a fix, when possible.
@@ -62,18 +59,24 @@ diff-like style.Lines of interest are indicated with '-'.
 'org' generates a report in the Org mode format of Emacs.
 
 Note that not all semantic patches implement all modes. For easy use
-of Coccinelle, the default mode is "chain" which tries the previous
-modes in the order above until one succeeds.
+of Coccinelle, the default mode is "report".
+
+Two other modes provide some common combinations of these modes.
 
-To make a report for every semantic patch, run the following command:
+'chain' tries the previous modes in the order above until one succeeds.
 
-	make coccicheck MODE=report
+'rep+ctxt' runs successively the report mode and the context mode.
+	   It should be used with the C option (described later)
+	   which checks the code on a file basis.
 
-NB: The 'report' mode is the default one.
+Examples:
+	To make a report for every semantic patch, run the following command:
 
-To produce patches, run:
+		make coccicheck MODE=report
 
-	make coccicheck MODE=patch
+	To produce patches, run:
+
+		make coccicheck MODE=patch
 
 
 The coccicheck target applies every semantic patch available in the
@@ -91,6 +94,11 @@ To enable verbose messages set the V= variable, for example:
 
    make coccicheck MODE=report V=1
 
+By default, coccicheck tries to run as parallel as possible. To change
+the parallelism, set the J= variable. For example, to run across 4 CPUs:
+
+   make coccicheck MODE=report J=4
+
 
  Using Coccinelle with a single semantic patch
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -124,26 +132,33 @@ To check only newly edited code, use the value 2 for the C flag, i.e.
 
     make C=2 CHECK="scripts/coccicheck"
 
+In these modes, which works on a file basis, there is no information
+about semantic patches displayed, and no commit message proposed.
+
 This runs every semantic patch in scripts/coccinelle by default. The
 COCCI variable may additionally be used to only apply a single
 semantic patch as shown in the previous section.
 
-The "chain" mode is the default. You can select another one with the
+The "report" mode is the default. You can select another one with the
 MODE variable explained above.
 
-In this mode, there is no information about semantic patches
-displayed, and no commit message proposed.
-
  Additional flags
 ~~~~~~~~~~~~~~~~~~
 
 Additional flags can be passed to spatch through the SPFLAGS
 variable.
 
-    make SPFLAGS=--use_glimpse coccicheck
+    make SPFLAGS=--use-glimpse coccicheck
+    make SPFLAGS=--use-idutils coccicheck
 
 See spatch --help to learn more about spatch options.
 
+Note that the '--use-glimpse' and '--use-idutils' options
+require external tools for indexing the code. None of them is
+thus active by default. However, by indexing the code with
+one of these tools, and according to the cocci file used,
+spatch could proceed the entire code base more quickly.
+
  Proposing new semantic patches
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

Documentation/cpu-hotplug.txt

@@ -267,8 +267,8 @@ Q: If i have some kernel code that needs to be aware of CPU arrival and
 A: This is what you would need in your kernel code to receive notifications.
 
 	#include <linux/cpu.h>
-	static int __cpuinit foobar_cpu_callback(struct notifier_block *nfb,
-					    unsigned long action, void *hcpu)
+	static int foobar_cpu_callback(struct notifier_block *nfb,
+				       unsigned long action, void *hcpu)
 	{
 		unsigned int cpu = (unsigned long)hcpu;
 
@@ -285,7 +285,7 @@ A: This is what you would need in your kernel code to receive notifications.
 		return NOTIFY_OK;
 	}
 
-	static struct notifier_block __cpuinitdata foobar_cpu_notifer =
+	static struct notifier_block foobar_cpu_notifer =
 	{
 	   .notifier_call = foobar_cpu_callback,
 	};

Documentation/device-mapper/switch.txt

@@ -0,0 +1,126 @@
+dm-switch
+=========
+
+The device-mapper switch target creates a device that supports an
+arbitrary mapping of fixed-size regions of I/O across a fixed set of
+paths.  The path used for any specific region can be switched
+dynamically by sending the target a message.
+
+It maps I/O to underlying block devices efficiently when there is a large
+number of fixed-sized address regions but there is no simple pattern
+that would allow for a compact representation of the mapping such as
+dm-stripe.
+
+Background
+----------
+
+Dell EqualLogic and some other iSCSI storage arrays use a distributed
+frameless architecture.  In this architecture, the storage group
+consists of a number of distinct storage arrays ("members") each having
+independent controllers, disk storage and network adapters.  When a LUN
+is created it is spread across multiple members.  The details of the
+spreading are hidden from initiators connected to this storage system.
+The storage group exposes a single target discovery portal, no matter
+how many members are being used.  When iSCSI sessions are created, each
+session is connected to an eth port on a single member.  Data to a LUN
+can be sent on any iSCSI session, and if the blocks being accessed are
+stored on another member the I/O will be forwarded as required.  This
+forwarding is invisible to the initiator.  The storage layout is also
+dynamic, and the blocks stored on disk may be moved from member to
+member as needed to balance the load.
+
+This architecture simplifies the management and configuration of both
+the storage group and initiators.  In a multipathing configuration, it
+is possible to set up multiple iSCSI sessions to use multiple network
+interfaces on both the host and target to take advantage of the
+increased network bandwidth.  An initiator could use a simple round
+robin algorithm to send I/O across all paths and let the storage array
+members forward it as necessary, but there is a performance advantage to
+sending data directly to the correct member.
+
+A device-mapper table already lets you map different regions of a
+device onto different targets.  However in this architecture the LUN is
+spread with an address region size on the order of 10s of MBs, which
+means the resulting table could have more than a million entries and
+consume far too much memory.
+
+Using this device-mapper switch target we can now build a two-layer
+device hierarchy:
+
+    Upper Tier – Determine which array member the I/O should be sent to.
+    Lower Tier – Load balance amongst paths to a particular member.
+
+The lower tier consists of a single dm multipath device for each member.
+Each of these multipath devices contains the set of paths directly to
+the array member in one priority group, and leverages existing path
+selectors to load balance amongst these paths.  We also build a
+non-preferred priority group containing paths to other array members for
+failover reasons.
+
+The upper tier consists of a single dm-switch device.  This device uses
+a bitmap to look up the location of the I/O and choose the appropriate
+lower tier device to route the I/O.  By using a bitmap we are able to
+use 4 bits for each address range in a 16 member group (which is very
+large for us).  This is a much denser representation than the dm table
+b-tree can achieve.
+
+Construction Parameters
+=======================
+
+    <num_paths> <region_size> <num_optional_args> [<optional_args>...]
+    [<dev_path> <offset>]+
+
+<num_paths>
+    The number of paths across which to distribute the I/O.
+
+<region_size>
+    The number of 512-byte sectors in a region. Each region can be redirected
+    to any of the available paths.
+
+<num_optional_args>
+    The number of optional arguments. Currently, no optional arguments
+    are supported and so this must be zero.
+
+<dev_path>
+    The block device that represents a specific path to the device.
+
+<offset>
+    The offset of the start of data on the specific <dev_path> (in units
+    of 512-byte sectors). This number is added to the sector number when
+    forwarding the request to the specific path. Typically it is zero.
+
+Messages
+========
+
+set_region_mappings <index>:<path_nr> [<index>]:<path_nr> [<index>]:<path_nr>...
+
+Modify the region table by specifying which regions are redirected to
+which paths.
+
+<index>
+    The region number (region size was specified in constructor parameters).
+    If index is omitted, the next region (previous index + 1) is used.
+    Expressed in hexadecimal (WITHOUT any prefix like 0x).
+
+<path_nr>
+    The path number in the range 0 ... (<num_paths> - 1).
+    Expressed in hexadecimal (WITHOUT any prefix like 0x).
+
+Status
+======
+
+No status line is reported.
+
+Example
+=======
+
+Assume that you have volumes vg1/switch0 vg1/switch1 vg1/switch2 with
+the same size.
+
+Create a switch device with 64kB region size:
+    dmsetup create switch --table "0 `blockdev --getsize /dev/vg1/switch0`
+	switch 3 128 0 /dev/vg1/switch0 0 /dev/vg1/switch1 0 /dev/vg1/switch2 0"
+
+Set mappings for the first 7 entries to point to devices switch0, switch1,
+switch2, switch0, switch1, switch2, switch1:
+    dmsetup message switch 0 set_region_mappings 0:0 :1 :2 :0 :1 :2 :1

Documentation/devicetree/bindings/arm/global_timer.txt

@@ -0,0 +1,24 @@
+
+* ARM Global Timer
+	Cortex-A9 are often associated with a per-core Global timer.
+
+** Timer node required properties:
+
+- compatible : Should be "arm,cortex-a9-global-timer"
+		Driver supports versions r2p0 and above.
+
+- interrupts : One interrupt to each core
+
+- reg : Specify the base address and the size of the GT timer
+	register window.
+
+- clocks : Should be phandle to a clock.
+
+Example:
+
+	timer@2c000600 {
+		compatible = "arm,cortex-a9-global-timer";
+		reg = <0x2c000600 0x20>;
+		interrupts = <1 13 0xf01>;
+		clocks = <&arm_periph_clk>;
+	};

Documentation/devicetree/bindings/gpio/men-a021-wdt.txt

@@ -0,0 +1,25 @@
+Bindings for MEN A21 Watchdog device connected to GPIO lines
+
+Required properties:
+- compatible: "men,a021-wdt"
+- gpios: Specifies the pins that control the Watchdog, order:
+  1: Watchdog enable
+  2: Watchdog fast-mode
+  3: Watchdog trigger
+  4: Watchdog reset cause bit 0
+  5: Watchdog reset cause bit 1
+  6: Watchdog reset cause bit 2
+
+Optional properties:
+- None
+
+Example:
+	watchdog {
+		compatible ="men,a021-wdt";
+		gpios = <&gpio3 9  1	/* WD_EN */
+			 &gpio3 10 1	/* WD_FAST */
+			 &gpio3 11 1	/* WD_TRIG */
+			 &gpio3 6  1	/* RST_CAUSE[0] */
+			 &gpio3 7  1	/* RST_CAUSE[1] */
+			 &gpio3 8  1>;	/* RST_CAUSE[2] */
+	};

Documentation/devicetree/bindings/input/ads7846.txt

@@ -0,0 +1,91 @@
+Device tree bindings for TI's ADS7843, ADS7845, ADS7846, ADS7873, TSC2046
+SPI driven touch screen controllers.
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+	Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Additional required properties:
+
+	compatible		Must be one of the following, depending on the
+				model:
+					"ti,tsc2046"
+					"ti,ads7843"
+					"ti,ads7845"
+					"ti,ads7846"
+					"ti,ads7873"
+
+	interrupt-parent
+	interrupts		An interrupt node describing the IRQ line the chip's
+				!PENIRQ pin is connected to.
+	vcc-supply		A regulator node for the supply voltage.
+
+
+Optional properties:
+
+	ti,vref-delay-usecs		vref supply delay in usecs, 0 for
+					external vref (u16).
+	ti,vref-mv			The VREF voltage, in millivolts (u16).
+	ti,keep-vref-on			set to keep vref on for differential
+					measurements as well
+	ti,swap-xy			swap x and y axis
+	ti,settle-delay-usec		Settling time of the analog signals;
+					a function of Vcc and the capacitance
+					on the X/Y drivers.  If set to non-zero,
+					two samples are taken with settle_delay
+					us apart, and the second one is used.
+					~150 uSec with 0.01uF caps (u16).
+	ti,penirq-recheck-delay-usecs	If set to non-zero, after samples are
+					taken this delay is applied and penirq
+					is rechecked, to help avoid false
+					events.  This value is affected by the
+					material used to build the touch layer
+					(u16).
+	ti,x-plate-ohms			Resistance of the X-plate,
+					in Ohms (u16).
+	ti,y-plate-ohms			Resistance of the Y-plate,
+					in Ohms (u16).
+	ti,x-min			Minimum value on the X axis (u16).
+	ti,y-min			Minimum value on the Y axis (u16).
+	ti,x-max			Maximum value on the X axis (u16).
+	ti,y-max			Minimum value on the Y axis (u16).
+	ti,pressure-min			Minimum reported pressure value
+					(threshold) - u16.
+	ti,pressure-max			Maximum reported pressure value (u16).
+	ti,debounce-max			Max number of additional readings per
+					sample (u16).
+	ti,debounce-tol			Tolerance used for filtering (u16).
+	ti,debounce-rep			Additional consecutive good readings
+					required after the first two (u16).
+	ti,pendown-gpio-debounce	Platform specific debounce time for the
+					pendown-gpio (u32).
+	pendown-gpio			GPIO handle describing the pin the !PENIRQ
+					line is connected to.
+	linux,wakeup			use any event on touchscreen as wakeup event.
+
+
+Example for a TSC2046 chip connected to an McSPI controller of an OMAP SoC::
+
+	spi_controller {
+		tsc2046@0 {
+			reg = <0>;	/* CS0 */
+			compatible = "ti,tsc2046";
+			interrupt-parent = <&gpio1>;
+			interrupts = <8 0>;	/* BOOT6 / GPIO 8 */
+			spi-max-frequency = <1000000>;
+			pendown-gpio = <&gpio1 8 0>;
+			vcc-supply = <&reg_vcc3>;
+
+			ti,x-min = /bits/ 16 <0>;
+			ti,x-max = /bits/ 16 <8000>;
+			ti,y-min = /bits/ 16 <0>;
+			ti,y-max = /bits/ 16 <4800>;
+			ti,x-plate-ohms = /bits/ 16 <40>;
+			ti,pressure-max = /bits/ 16 <255>;
+
+			linux,wakeup;
+		};
+	};

Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt

@@ -0,0 +1,44 @@
+* TI - TSC ADC (Touschscreen and analog digital converter)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Required properties:
+- child "tsc"
+	ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen
+		  support on the platform.
+	ti,x-plate-resistance: X plate resistance
+	ti,coordiante-readouts: The sequencer supports a total of 16
+				programmable steps each step is used to
+				read a single coordinate. A single
+                                readout is enough but multiple reads can
+				increase the quality.
+				A value of 5 means, 5 reads for X, 5 for
+				Y and 2 for Z (always). This utilises 12
+				of the 16 software steps available. The
+				remaining 4 can be used by the ADC.
+	ti,wire-config: Different boards could have a different order for
+			connecting wires on touchscreen. We need to provide an
+			8 bit number where in the 1st four bits represent the
+			analog lines and the next 4 bits represent positive/
+			negative terminal on that input line. Notations to
+			represent the input lines and terminals resoectively
+			is as follows:
+			AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
+			XP  = 0, XN = 1, YP = 2, YN = 3.
+- child "adc"
+	ti,adc-channels: List of analog inputs available for ADC.
+			 AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
+
+Example:
+	tscadc: tscadc@44e0d000 {
+		compatible = "ti,am3359-tscadc";
+		tsc {
+			ti,wires = <4>;
+			ti,x-plate-resistance = <200>;
+			ti,coordiante-readouts = <5>;
+			ti,wire-config = <0x00 0x11 0x22 0x33>;
+		};
+
+		adc {
+			ti,adc-channels = <4 5 6 7>;
+		};
+	}

Documentation/devicetree/bindings/iommu/arm,smmu.txt

@@ -0,0 +1,70 @@
+* ARM System MMU Architecture Implementation
+
+ARM SoCs may contain an implementation of the ARM System Memory
+Management Unit Architecture, which can be used to provide 1 or 2 stages
+of address translation to bus masters external to the CPU.
+
+The SMMU may also raise interrupts in response to various fault
+conditions.
+
+** System MMU required properties:
+
+- compatible    : Should be one of:
+
+                        "arm,smmu-v1"
+                        "arm,smmu-v2"
+                        "arm,mmu-400"
+                        "arm,mmu-500"
+
+                  depending on the particular implementation and/or the
+                  version of the architecture implemented.
+
+- reg           : Base address and size of the SMMU.
+
+- #global-interrupts : The number of global interrupts exposed by the
+                       device.
+
+- interrupts    : Interrupt list, with the first #global-irqs entries
+                  corresponding to the global interrupts and any
+                  following entries corresponding to context interrupts,
+                  specified in order of their indexing by the SMMU.
+
+                  For SMMUv2 implementations, there must be exactly one
+                  interrupt per context bank. In the case of a single,
+                  combined interrupt, it must be listed multiple times.
+
+- mmu-masters   : A list of phandles to device nodes representing bus
+                  masters for which the SMMU can provide a translation
+                  and their corresponding StreamIDs (see example below).
+                  Each device node linked from this list must have a
+                  "#stream-id-cells" property, indicating the number of
+                  StreamIDs associated with it.
+
+** System MMU optional properties:
+
+- smmu-parent   : When multiple SMMUs are chained together, this
+                  property can be used to provide a phandle to the
+                  parent SMMU (that is the next SMMU on the path going
+                  from the mmu-masters towards memory) node for this
+                  SMMU.
+
+Example:
+
+        smmu {
+                compatible = "arm,smmu-v1";
+                reg = <0xba5e0000 0x10000>;
+                #global-interrupts = <2>;
+                interrupts = <0 32 4>,
+                             <0 33 4>,
+                             <0 34 4>, /* This is the first context interrupt */
+                             <0 35 4>,
+                             <0 36 4>,
+                             <0 37 4>;
+
+                /*
+                 * Two DMA controllers, the first with two StreamIDs (0xd01d
+                 * and 0xd01e) and the second with only one (0xd11c).
+                 */
+                mmu-masters = <&dma0 0xd01d 0xd01e>,
+                              <&dma1 0xd11c>;
+        };

Documentation/devicetree/bindings/media/exynos-fimc-lite.txt

@@ -2,8 +2,10 @@ Exynos4x12/Exynos5 SoC series camera host interface (FIMC-LITE)
 
 Required properties:
 
-- compatible	: should be "samsung,exynos4212-fimc-lite" for Exynos4212 and
-		  Exynos4412 SoCs;
+- compatible	: should be one of:
+		  "samsung,exynos4212-fimc-lite" for Exynos4212/4412 SoCs,
+		  "samsung,exynos5250-fimc-lite" for Exynos5250 compatible
+		   devices;
 - reg		: physical base address and size of the device memory mapped
 		  registers;
 - interrupts	: should contain FIMC-LITE interrupt;

Documentation/devicetree/bindings/media/i2c/mt9p031.txt

@@ -0,0 +1,40 @@
+* Aptina 1/2.5-Inch 5Mp CMOS Digital Image Sensor
+
+The Aptina MT9P031 is a 1/2.5-inch CMOS active pixel digital image sensor with
+an active array size of 2592H x 1944V. It is programmable through a simple
+two-wire serial interface.
+
+Required Properties:
+- compatible: value should be either one among the following
+	(a) "aptina,mt9p031" for mt9p031 sensor
+	(b) "aptina,mt9p031m" for mt9p031m sensor
+
+- input-clock-frequency: Input clock frequency.
+
+- pixel-clock-frequency: Pixel clock frequency.
+
+Optional Properties:
+- reset-gpios: Chip reset GPIO
+
+For further reading on port node refer to
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+
+	i2c0@1c22000 {
+		...
+		...
+		mt9p031@5d {
+			compatible = "aptina,mt9p031";
+			reg = <0x5d>;
+			reset-gpios = <&gpio3 30 0>;
+
+			port {
+				mt9p031_1: endpoint {
+					input-clock-frequency = <6000000>;
+					pixel-clock-frequency = <96000000>;
+				};
+			};
+		};
+		...
+	};

Documentation/devicetree/bindings/media/i2c/tvp514x.txt

@@ -0,0 +1,44 @@
+* Texas Instruments TVP514x video decoder
+
+The TVP5146/TVP5146m2/TVP5147/TVP5147m1 device is high quality, single-chip
+digital video decoder that digitizes and decodes all popular baseband analog
+video formats into digital video component. The tvp514x decoder supports analog-
+to-digital (A/D) conversion of component RGB and YPbPr signals as well as A/D
+conversion and decoding of NTSC, PAL and SECAM composite and S-video into
+component YCbCr.
+
+Required Properties :
+- compatible : value should be either one among the following
+	(a) "ti,tvp5146" for tvp5146 decoder.
+	(b) "ti,tvp5146m2" for tvp5146m2 decoder.
+	(c) "ti,tvp5147" for tvp5147 decoder.
+	(d) "ti,tvp5147m1" for tvp5147m1 decoder.
+
+- hsync-active: HSYNC Polarity configuration for endpoint.
+
+- vsync-active: VSYNC Polarity configuration for endpoint.
+
+- pclk-sample: Clock polarity of the endpoint.
+
+For further reading on port node refer to Documentation/devicetree/bindings/
+media/video-interfaces.txt.
+
+Example:
+
+	i2c0@1c22000 {
+		...
+		...
+		tvp514x@5c {
+			compatible = "ti,tvp5146";
+			reg = <0x5c>;
+
+			port {
+				tvp514x_1: endpoint {
+					hsync-active = <1>;
+					vsync-active = <1>;
+					pclk-sample = <0>;
+				};
+			};
+		};
+		...
+	};

Documentation/devicetree/bindings/media/samsung-fimc.txt

@@ -127,22 +127,22 @@ Example:
 				};
 			};
 		};
-	};
 
-	/* MIPI CSI-2 bus IF sensor */
-	s5c73m3: sensor@0x1a {
-		compatible = "samsung,s5c73m3";
-		reg = <0x1a>;
-		vddio-supply = <...>;
+		/* MIPI CSI-2 bus IF sensor */
+		s5c73m3: sensor@0x1a {
+			compatible = "samsung,s5c73m3";
+			reg = <0x1a>;
+			vddio-supply = <...>;
 
-		clock-frequency = <24000000>;
-		clocks = <...>;
-		clock-names = "mclk";
+			clock-frequency = <24000000>;
+			clocks = <...>;
+			clock-names = "mclk";
 
-		port {
-			s5c73m3_1: endpoint {
-				data-lanes = <1 2 3 4>;
-				remote-endpoint = <&csis0_ep>;
+			port {
+				s5c73m3_1: endpoint {
+					data-lanes = <1 2 3 4>;
+					remote-endpoint = <&csis0_ep>;
+				};
 			};
 		};
 	};

Documentation/devicetree/bindings/media/samsung-mipi-csis.txt

@@ -5,8 +5,8 @@ Required properties:
 
 - compatible	  : "samsung,s5pv210-csis" for S5PV210 (S5PC110),
 		    "samsung,exynos4210-csis" for Exynos4210 (S5PC210),
-		    "samsung,exynos4212-csis" for Exynos4212/Exynos4412
-		    SoC series;
+		    "samsung,exynos4212-csis" for Exynos4212/Exynos4412,
+		    "samsung,exynos5250-csis" for Exynos5250;
 - reg		  : offset and length of the register set for the device;
 - interrupts      : should contain MIPI CSIS interrupt; the format of the
 		    interrupt specifier depends on the interrupt controller;

Documentation/devicetree/bindings/media/sh_mobile_ceu.txt

@@ -0,0 +1,18 @@
+Bindings, specific for the sh_mobile_ceu_camera.c driver:
+ - compatible: Should be "renesas,sh-mobile-ceu"
+ - reg: register base and size
+ - interrupts: the interrupt number
+ - interrupt-parent: the interrupt controller
+ - renesas,max-width: maximum image width, supported on this SoC
+ - renesas,max-height: maximum image height, supported on this SoC
+
+Example:
+
+ceu0: ceu@0xfe910000 {
+	compatible = "renesas,sh-mobile-ceu";
+	reg = <0xfe910000 0xa0>;
+	interrupt-parent = <&intcs>;
+	interrupts = <0x880>;
+	renesas,max-width = <8188>;
+	renesas,max-height = <8188>;
+};

Documentation/devicetree/bindings/mfd/max8998.txt

@@ -0,0 +1,119 @@
+* Maxim MAX8998, National/TI LP3974 multi-function device
+
+The Maxim MAX8998 is a multi-function device which includes voltage/current
+regulators, real time clock, battery charging controller and several
+other sub-blocks. It is interfaced using an I2C interface. Each sub-block
+is addressed by the host system using different i2c slave address.
+
+PMIC sub-block
+--------------
+
+The PMIC sub-block contains a number of voltage and current regulators,
+with controllable parameters and dynamic voltage scaling capability.
+In addition, it includes a real time clock and battery charging controller
+as well. It is accessible at I2C address 0x66.
+
+Required properties:
+- compatible: Should be one of the following:
+    - "maxim,max8998" for Maxim MAX8998
+    - "national,lp3974" or "ti,lp3974" for National/TI LP3974.
+- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
+
+Optional properties:
+- interrupt-parent: Specifies the phandle of the interrupt controller to which
+  the interrupts from MAX8998 are routed to.
+- interrupts: Interrupt specifiers for two interrupt sources.
+  - First interrupt specifier is for main interrupt.
+  - Second interrupt specifier is for power-on/-off interrupt.
+- max8998,pmic-buck1-dvs-gpios: GPIO specifiers for two host gpios used
+  for buck 1 dvs. The format of the gpio specifier depends on the gpio
+  controller.
+- max8998,pmic-buck2-dvs-gpio: GPIO specifier for host gpio used
+  for buck 2 dvs. The format of the gpio specifier depends on the gpio
+  controller.
+- max8998,pmic-buck1-default-dvs-idx: Default voltage setting selected from
+  the possible 4 options selectable by the dvs gpios. The value of this
+  property should be 0, 1, 2 or 3. If not specified or out of range,
+  a default value of 0 is taken.
+- max8998,pmic-buck2-default-dvs-idx: Default voltage setting selected from
+  the possible 2 options selectable by the dvs gpios. The value of this
+  property should be 0 or 1. If not specified or out of range, a default
+  value of 0 is taken.
+- max8998,pmic-buck-voltage-lock: If present, disallows changing of
+  preprogrammed buck dvfs voltages.
+
+Additional properties required if max8998,pmic-buck1-dvs-gpios is defined:
+- max8998,pmic-buck1-dvs-voltage: An array of 4 voltage values in microvolts
+  for buck1 regulator that can be selected using dvs gpio.
+
+Additional properties required if max8998,pmic-buck2-dvs-gpio is defined:
+- max8998,pmic-buck2-dvs-voltage: An array of 2 voltage values in microvolts
+  for buck2 regulator that can be selected using dvs gpio.
+
+Regulators: All the regulators of MAX8998 to be instantiated shall be
+listed in a child node named 'regulators'. Each regulator is represented
+by a child node of the 'regulators' node.
+
+	regulator-name {
+		/* standard regulator bindings here */
+	};
+
+Following regulators of the MAX8998 PMIC block are supported. Note that
+the 'n' in regulator name, as in LDOn or BUCKn, represents the LDO or BUCK
+number as described in MAX8998 datasheet.
+
+	- LDOn
+		  - valid values for n are 2 to 17
+		  - Example: LDO2, LDO10, LDO17
+	- BUCKn
+		  - valid values for n are 1 to 4.
+		  - Example: BUCK1, BUCK2, BUCK3, BUCK4
+
+	- ENVICHG: Battery Charging Current Monitor Output. This is a fixed
+		   voltage type regulator
+
+	- ESAFEOUT1: (ldo19)
+	- ESAFEOUT2: (ld020)
+
+Standard regulator bindings are used inside regulator subnodes. Check
+  Documentation/devicetree/bindings/regulator/regulator.txt
+for more details.
+
+Example:
+
+	pmic@66 {
+		compatible = "maxim,max8998-pmic";
+		reg = <0x66>;
+		interrupt-parent = <&wakeup_eint>;
+		interrupts = <4 0>, <3 0>;
+
+		/* Buck 1 DVS settings */
+		max8998,pmic-buck1-default-dvs-idx = <0>;
+		max8998,pmic-buck1-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */
+					       <&gpx0 1 1 0 0>; /* SET2 */
+		max8998,pmic-buck1-dvs-voltage = <1350000>, <1300000>,
+						 <1000000>, <950000>;
+
+		/* Buck 2 DVS settings */
+		max8998,pmic-buck2-default-dvs-idx = <0>;
+		max8998,pmic-buck2-dvs-gpio = <&gpx0 0 3 0 0>; /* SET3 */
+		max8998,pmic-buck2-dvs-voltage = <1350000>, <1300000>;
+
+		/* Regulators to instantiate */
+		regulators {
+			ldo2_reg: LDO2 {
+				regulator-name = "VDD_ALIVE_1.1V";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-always-on;
+			};
+
+			buck1_reg: BUCK1 {
+				regulator-name = "VDD_ARM_1.2V";
+				regulator-min-microvolt = <950000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+		};
+	};

Documentation/devicetree/bindings/mfd/twl4030-power.txt

@@ -0,0 +1,28 @@
+Texas Instruments TWL family (twl4030) reset and power management module
+
+The power management module inside the TWL family provides several facilities
+to control the power resources, including power scripts. For now, the
+binding only supports the complete shutdown of the system after poweroff.
+
+Required properties:
+- compatible : must be "ti,twl4030-power"
+
+Optional properties:
+- ti,use_poweroff: With this flag, the chip will initiates an ACTIVE-to-OFF or
+		   SLEEP-to-OFF transition when the system poweroffs.
+
+Example:
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+
+		twl_power: power {
+			compatible = "ti,twl4030-power";
+			ti,use_poweroff;
+		};
+	};
+};

Documentation/devicetree/bindings/mmc/mmc.txt

@@ -28,6 +28,7 @@ Optional properties:
 - cap-mmc-highspeed: MMC high-speed timing is supported
 - cap-power-off-card: powering off the card is safe
 - cap-sdio-irq: enable SDIO IRQ signalling on this interface
+- full-pwr-cycle: full power cycle of the card is supported
 
 *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
 polarity properties, we have to fix the meaning of the "normal" and "inverted"

Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt

@@ -0,0 +1,23 @@
+* Rockchip specific extensions to the Synopsis Designware Mobile
+  Storage Host Controller
+
+The Synopsis designware mobile storage host controller is used to interface
+a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
+differences between the core Synopsis dw mshc controller properties described
+by synopsis-dw-mshc.txt and the properties used by the Rockchip specific
+extensions to the Synopsis Designware Mobile Storage Host Controller.
+
+Required Properties:
+
+* compatible: should be
+	- "rockchip,rk2928-dw-mshc": for Rockchip RK2928 and following
+
+Example:
+
+	rkdwmmc0@12200000 {
+		compatible = "rockchip,rk2928-dw-mshc";
+		reg = <0x12200000 0x1000>;
+		interrupts = <0 75 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};

Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt

@@ -39,6 +39,19 @@ Required Properties:
 
 Optional properties:
 
+* clocks: from common clock binding: handle to biu and ciu clocks for the
+  bus interface unit clock and the card interface unit clock.
+
+* clock-names: from common clock binding: Shall be "biu" and "ciu".
+  If the biu clock is missing we'll simply skip enabling it.  If the
+  ciu clock is missing we'll just assume that the clock is running at
+  clock-frequency.  It is an error to omit both the ciu clock and the
+  clock-frequency.
+
+* clock-frequency: should be the frequency (in Hz) of the ciu clock.  If this
+  is specified and the ciu clock is specified then we'll try to set the ciu
+  clock to this at probe time.
+
 * num-slots: specifies the number of slots supported by the controller.
   The number of physical slots actually used could be equal or less than the
   value specified by num-slots. If this property is not specified, the value
@@ -55,6 +68,9 @@ Optional properties:
 
 * broken-cd: as documented in mmc core bindings.
 
+* vmmc-supply: The phandle to the regulator to use for vmmc.  If this is
+  specified we'll defer probe until we can find this regulator.
+
 Aliases:
 
 - All the MSHC controller nodes should be represented in the aliases node using
@@ -67,6 +83,8 @@ board specific portions as listed below.
 
 	dwmmc0@12200000 {
 		compatible = "snps,dw-mshc";
+		clocks = <&clock 351>, <&clock 132>;
+		clock-names = "biu", "ciu";
 		reg = <0x12200000 0x1000>;
 		interrupts = <0 75 0>;
 		#address-cells = <1>;
@@ -74,11 +92,13 @@ board specific portions as listed below.
 	};
 
 	dwmmc0@12200000 {
+		clock-frequency = <400000000>;
 		num-slots = <1>;
 		supports-highspeed;
 		broken-cd;
 		fifo-depth = <0x80>;
 		card-detect-delay = <200>;
+		vmmc-supply = <&buck8>;
 
 		slot@0 {
 			reg = <0>;

Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt

@@ -0,0 +1,22 @@
+* Allwinner EMAC ethernet controller
+
+Required properties:
+- compatible: should be "allwinner,sun4i-emac".
+- reg: address and length of the register set for the device.
+- interrupts: interrupt for the device
+- phy: A phandle to a phy node defining the PHY address (as the reg
+  property, a single integer).
+- clocks: A phandle to the reference clock for this device
+
+Optional properties:
+- (local-)mac-address: mac address to be used by this driver
+
+Example:
+
+emac: ethernet@01c0b000 {
+       compatible = "allwinner,sun4i-emac";
+       reg = <0x01c0b000 0x1000>;
+       interrupts = <55>;
+       clocks = <&ahb_gates 17>;
+       phy = <&phy0>;
+};

Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt

@@ -0,0 +1,26 @@
+* Allwinner A10 MDIO Ethernet Controller interface
+
+Required properties:
+- compatible: should be "allwinner,sun4i-mdio".
+- reg: address and length of the register set for the device.
+
+Optional properties:
+- phy-supply: phandle to a regulator if the PHY needs one
+
+Example at the SoC level:
+mdio@01c0b080 {
+	compatible = "allwinner,sun4i-mdio";
+	reg = <0x01c0b080 0x14>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
+
+And at the board level:
+
+mdio@01c0b080 {
+	phy-supply = <&reg_emac_3v3>;
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};

Documentation/devicetree/bindings/net/arc_emac.txt

@@ -0,0 +1,38 @@
+* Synopsys ARC EMAC 10/100 Ethernet driver (EMAC)
+
+Required properties:
+- compatible: Should be "snps,arc-emac"
+- reg: Address and length of the register set for the device
+- interrupts: Should contain the EMAC interrupts
+- clock-frequency: CPU frequency. It is needed to calculate and set polling
+period of EMAC.
+- max-speed: Maximum supported data-rate in Mbit/s. In some HW configurations
+bandwidth of external memory controller might be a limiting factor. That's why
+it's required to specify which data-rate is supported on current SoC or FPGA.
+For example if only 10 Mbit/s is supported (10BASE-T) set "10". If 100 Mbit/s is
+supported (100BASE-TX) set "100".
+- phy: PHY device attached to the EMAC via MDIO bus
+
+Child nodes of the driver are the individual PHY devices connected to the
+MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus.
+
+Optional properties:
+- mac-address: 6 bytes, mac address
+
+Examples:
+
+	ethernet@c0fc2000 {
+		compatible = "snps,arc-emac";
+		reg = <0xc0fc2000 0x3c>;
+		interrupts = <6>;
+		mac-address = [ 00 11 22 33 44 55 ];
+		clock-frequency = <80000000>;
+		max-speed = <100>;
+		phy = <&phy0>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+		phy0: ethernet-phy@0 {
+			reg = <1>;
+		};
+	};

Documentation/devicetree/bindings/net/can/fsl-flexcan.txt

@@ -16,6 +16,8 @@ Optional properties:
 
 - clock-frequency : The oscillator frequency driving the flexcan device
 
+- xceiver-supply: Regulator that powers the CAN transceiver
+
 Example:
 
 	can@1c000 {

Documentation/devicetree/bindings/net/cpsw.txt

@@ -28,6 +28,8 @@ Optional properties:
 Slave Properties:
 Required properties:
 - phy_id		: Specifies slave phy id
+- phy-mode		: The interface between the SoC and the PHY (a string
+			  that of_get_phy_mode() can understand)
 - mac-address		: Specifies slave MAC address
 
 Optional properties:
@@ -58,11 +60,13 @@ Examples:
 		cpts_clock_shift = <29>;
 		cpsw_emac0: slave@0 {
 			phy_id = <&davinci_mdio>, <0>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
 		cpsw_emac1: slave@1 {
 			phy_id = <&davinci_mdio>, <1>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
@@ -84,11 +88,13 @@ Examples:
 		cpts_clock_shift = <29>;
 		cpsw_emac0: slave@0 {
 			phy_id = <&davinci_mdio>, <0>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
 		cpsw_emac1: slave@1 {
 			phy_id = <&davinci_mdio>, <1>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};

Documentation/devicetree/bindings/net/davicom-dm9000.txt

@@ -0,0 +1,26 @@
+Davicom DM9000 Fast Ethernet controller
+
+Required properties:
+- compatible = "davicom,dm9000";
+- reg : physical addresses and sizes of registers, must contain 2 entries:
+    first entry : address register,
+    second entry : data register.
+- interrupt-parent : interrupt controller to which the device is connected
+- interrupts : interrupt specifier specific to interrupt controller
+
+Optional properties:
+- local-mac-address : A bytestring of 6 bytes specifying Ethernet MAC address
+    to use (from firmware or bootloader)
+- davicom,no-eeprom : Configuration EEPROM is not available
+- davicom,ext-phy : Use external PHY
+
+Example:
+
+	ethernet@18000000 {
+		compatible = "davicom,dm9000";
+		reg = <0x18000000 0x2 0x18000004 0x2>;
+		interrupt-parent = <&gpn>;
+		interrupts = <7 4>;
+		local-mac-address = [00 00 de ad be ef];
+		davicom,no-eeprom;
+	};

Documentation/devicetree/bindings/net/marvell-orion-net.txt

@@ -0,0 +1,85 @@
+Marvell Orion/Discovery ethernet controller
+=============================================
+
+The Marvell Discovery ethernet controller can be found on Marvell Orion SoCs
+(Kirkwood, Dove, Orion5x, and Discovery Innovation) and as part of Marvell
+Discovery system controller chips (mv64[345]60).
+
+The Discovery ethernet controller is described with two levels of nodes. The
+first level describes the ethernet controller itself and the second level
+describes up to 3 ethernet port nodes within that controller. The reason for
+the multiple levels is that the port registers are interleaved within a single
+set of controller registers. Each port node describes port-specific properties.
+
+Note: The above separation is only true for Discovery system controllers.
+For Orion SoCs we stick to the separation, although there each controller has
+only one port associated. Multiple ports are implemented as multiple single-port
+controllers. As Kirkwood has some issues with proper initialization after reset,
+an extra compatible string is added for it.
+
+* Ethernet controller node
+
+Required controller properties:
+ - #address-cells: shall be 1.
+ - #size-cells: shall be 0.
+ - compatible: shall be one of "marvell,orion-eth", "marvell,kirkwood-eth".
+ - reg: address and length of the controller registers.
+
+Optional controller properties:
+ - clocks: phandle reference to the controller clock.
+ - marvell,tx-checksum-limit: max tx packet size for hardware checksum.
+
+* Ethernet port node
+
+Required port properties:
+ - device_type: shall be "network".
+ - compatible: shall be one of "marvell,orion-eth-port",
+      "marvell,kirkwood-eth-port".
+ - reg: port number relative to ethernet controller, shall be 0, 1, or 2.
+ - interrupts: port interrupt.
+ - local-mac-address: 6 bytes MAC address.
+
+Optional port properties:
+ - marvell,tx-queue-size: size of the transmit ring buffer.
+ - marvell,tx-sram-addr: address of transmit descriptor buffer located in SRAM.
+ - marvell,tx-sram-size: size of transmit descriptor buffer located in SRAM.
+ - marvell,rx-queue-size: size of the receive ring buffer.
+ - marvell,rx-sram-addr: address of receive descriptor buffer located in SRAM.
+ - marvell,rx-sram-size: size of receive descriptor buffer located in SRAM.
+
+and
+
+ - phy-handle: phandle reference to ethernet PHY.
+
+or
+
+ - speed: port speed if no PHY connected.
+ - duplex: port mode if no PHY connected.
+
+* Node example:
+
+mdio-bus {
+	...
+	ethphy: ethernet-phy@8 {
+		device_type = "ethernet-phy";
+		...
+	};
+};
+
+eth: ethernet-controller@72000 {
+	compatible = "marvell,orion-eth";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	reg = <0x72000 0x2000>;
+	clocks = <&gate_clk 2>;
+	marvell,tx-checksum-limit = <1600>;
+
+	ethernet@0 {
+		device_type = "network";
+		compatible = "marvell,orion-eth-port";
+		reg = <0>;
+		interrupts = <29>;
+		phy-handle = <&ethphy>;
+		local-mac-address = [00 00 00 00 00 00];
+	};
+};

Documentation/devicetree/bindings/net/micrel-ks8851.txt

@@ -0,0 +1,9 @@
+Micrel KS8851 Ethernet mac
+
+Required properties:
+- compatible = "micrel,ks8851-ml" of parallel interface
+- reg : 2 physical address and size of registers for data and command
+- interrupts : interrupt connection
+
+Optional properties:
+- local-mac-address : Ethernet mac address to use

Documentation/devicetree/bindings/net/stmmac.txt

@@ -12,6 +12,16 @@ Required properties:
   property
 - phy-mode: String, operation mode of the PHY interface.
   Supported values are: "mii", "rmii", "gmii", "rgmii".
+- snps,phy-addr		phy address to connect to.
+- snps,reset-gpio 	gpio number for phy reset.
+- snps,reset-active-low boolean flag to indicate if phy reset is active low.
+- snps,reset-delays-us  is triplet of delays
+	The 1st cell is reset pre-delay in micro seconds.
+	The 2nd cell is reset pulse in micro seconds.
+	The 3rd cell is reset post-delay in micro seconds.
+- snps,pbl		Programmable Burst Length
+- snps,fixed-burst	Program the DMA to use the fixed burst mode
+- snps,mixed-burst	Program the DMA to use the mixed burst mode
 
 Optional properties:
 - mac-address: 6 bytes, mac address

Documentation/devicetree/bindings/net/via-velocity.txt

@@ -0,0 +1,20 @@
+* VIA Velocity 10/100/1000 Network Controller
+
+Required properties:
+- compatible : Should be "via,velocity-vt6110"
+- reg : Address and length of the io space
+- interrupts : Should contain the controller interrupt line
+
+Optional properties:
+- no-eeprom : PCI network cards use an external EEPROM to store data. Embedded
+	devices quite often set this data in uboot and do not provide an eeprom.
+	Specify this option if you have no external eeprom.
+
+Examples:
+
+eth0@d8004000 {
+	compatible = "via,velocity-vt6110";
+	reg = <0xd8004000 0x400>;
+	interrupts = <10>;
+	no-eeprom;
+};

Documentation/devicetree/bindings/power_supply/lp8727_charger.txt

@@ -0,0 +1,44 @@
+Binding for TI/National Semiconductor LP8727 Charger
+
+Required properties:
+- compatible: "ti,lp8727"
+- reg: I2C slave address 27h
+
+Optional properties:
+- interrupt-parent: interrupt controller node (see interrupt binding[0])
+- interrupts: interrupt specifier (see interrupt binding[0])
+- debounce-ms: interrupt debounce time. (u32)
+
+AC and USB charging parameters
+- charger-type: "ac" or "usb" (string)
+- eoc-level: value of 'enum lp8727_eoc_level' (u8)
+- charging-current: value of 'enum lp8727_ichg' (u8)
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+Example)
+
+lp8727@27 {
+	compatible = "ti,lp8727";
+	reg = <0x27>;
+
+	/* GPIO 134 is used for LP8728 interrupt pin */
+	interrupt-parent = <&gpio5>; 	/* base = 128 */
+	interrupts = <6 0x2>;		/* offset = 6, falling edge type */
+
+	debounce-ms = <300>;
+
+	/* AC charger: 5% EOC and 500mA charging current */
+	ac {
+		charger-type = "ac";
+		eoc-level = /bits/ 8 <0>;
+		charging-current = /bits/ 8 <4>;
+	};
+
+	/* USB charger: 10% EOC and 400mA charging current */
+	usb {
+		charger-type = "usb";
+		eoc-level = /bits/ 8 <1>;
+		charging-current = /bits/ 8 <2>;
+	};
+};

Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt

@@ -0,0 +1,27 @@
+NXP PCA9685 16-channel 12-bit PWM LED controller
+================================================
+
+Required properties:
+  - compatible: "nxp,pca9685-pwm"
+  - #pwm-cells: should be 2. The first cell specifies the per-chip index
+    of the PWM to use and the second cell is the period in nanoseconds.
+    The index 16 is the ALLCALL channel, that sets all PWM channels at the same
+    time.
+
+Optional properties:
+  - invert (bool): boolean to enable inverted logic
+  - open-drain (bool): boolean to configure outputs with open-drain structure;
+		       if omitted use totem-pole structure
+
+Example:
+
+For LEDs that are directly connected to the PCA, the following setting is
+applicable:
+
+pca: pca@41 {
+	compatible = "nxp,pca9685-pwm";
+	#pwm-cells = <2>;
+	reg = <0x41>;
+	invert;
+	open-drain;
+};

Documentation/devicetree/bindings/regulator/max8997-regulator.txt

@@ -1,6 +1,6 @@
 * Maxim MAX8997 Voltage and Current Regulator
 
-The Maxim MAX8997 is a multi-function device which includes volatage and
+The Maxim MAX8997 is a multi-function device which includes voltage and
 current regulators, rtc, charger controller and other sub-blocks. It is
 interfaced to the host controller using a i2c interface. Each sub-block is
 addressed by the host system using different i2c slave address. This document

Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt

@@ -1,6 +1,6 @@
 * Samsung S5M8767 Voltage and Current Regulator
 
-The Samsung S5M8767 is a multi-function device which includes volatage and
+The Samsung S5M8767 is a multi-function device which includes voltage and
 current regulators, rtc, charger controller and other sub-blocks. It is
 interfaced to the host controller using a i2c interface. Each sub-block is
 addressed by the host system using different i2c slave address. This document
@@ -103,13 +103,13 @@ Example:
 
 		s5m8767,pmic-buck-default-dvs-idx = <0>;
 
-		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 1 0 0>, /* DVS1 */
-						 <&gpx0 1 1 0 0>, /* DVS2 */
-						 <&gpx0 2 1 0 0>; /* DVS3 */
+		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
+						 <&gpx0 1 0>, /* DVS2 */
+						 <&gpx0 2 0>; /* DVS3 */
 
-		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 1 0 0>, /* SET1 */
-						<&gpx2 4 1 0 0>, /* SET2 */
-						<&gpx2 5 1 0 0>; /* SET3 */
+		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
+						<&gpx2 4 0>, /* SET2 */
+						<&gpx2 5 0>; /* SET3 */
 
 		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
 						 <1250000>, <1200000>,

Documentation/devicetree/bindings/regulator/twl-regulator.txt

@@ -18,20 +18,20 @@ For twl6030 regulators/LDOs
   - "ti,twl6030-vdd1" for VDD1 SMPS
   - "ti,twl6030-vdd2" for VDD2 SMPS
   - "ti,twl6030-vdd3" for VDD3 SMPS
-For twl6025 regulators/LDOs
+For twl6032 regulators/LDOs
 - compatible:
-  - "ti,twl6025-ldo1" for LDO1 LDO
-  - "ti,twl6025-ldo2" for LDO2 LDO
-  - "ti,twl6025-ldo3" for LDO3 LDO
-  - "ti,twl6025-ldo4" for LDO4 LDO
-  - "ti,twl6025-ldo5" for LDO5 LDO
-  - "ti,twl6025-ldo6" for LDO6 LDO
-  - "ti,twl6025-ldo7" for LDO7 LDO
-  - "ti,twl6025-ldoln" for LDOLN LDO
-  - "ti,twl6025-ldousb" for LDOUSB LDO
-  - "ti,twl6025-smps3" for SMPS3 SMPS
-  - "ti,twl6025-smps4" for SMPS4 SMPS
-  - "ti,twl6025-vio" for VIO SMPS
+  - "ti,twl6032-ldo1" for LDO1 LDO
+  - "ti,twl6032-ldo2" for LDO2 LDO
+  - "ti,twl6032-ldo3" for LDO3 LDO
+  - "ti,twl6032-ldo4" for LDO4 LDO
+  - "ti,twl6032-ldo5" for LDO5 LDO
+  - "ti,twl6032-ldo6" for LDO6 LDO
+  - "ti,twl6032-ldo7" for LDO7 LDO
+  - "ti,twl6032-ldoln" for LDOLN LDO
+  - "ti,twl6032-ldousb" for LDOUSB LDO
+  - "ti,twl6032-smps3" for SMPS3 SMPS
+  - "ti,twl6032-smps4" for SMPS4 SMPS
+  - "ti,twl6032-vio" for VIO SMPS
 For twl4030 regulators/LDOs
 - compatible:
   - "ti,twl4030-vaux1" for VAUX1 LDO

drivers/staging/ti-soc-thermal/ti_soc_thermal.txt → Documentation/devicetree/bindings/thermal/ti_soc_thermal.txt

@@ -17,8 +17,9 @@ Required properties:
 - interrupts : this entry should indicate which interrupt line
 the talert signal is routed to;
 Specific:
-- ti,tshut-gpio : this entry should be used to inform which GPIO
-line the tshut signal is routed to;
+- gpios : this entry should be used to inform which GPIO
+line the tshut signal is routed to. The informed GPIO will
+be treated as an IRQ;
 - regs : this entry must also be specified and it is specific
 to each bandgap version, because the mapping may change from
 soc to soc, apart of depending on available features.
@@ -37,7 +38,7 @@ bandgap {
 		0x4a002378 0x18>;
 	compatible = "ti,omap4460-bandgap";
 	interrupts = <0 126 4>; /* talert */
-	ti,tshut-gpio = <86>;
+	gpios = <&gpio3 22 0>; /* tshut */
 };
 
 OMAP4470:
@@ -47,7 +48,7 @@ bandgap {
 		0x4a002378 0x18>;
 	compatible = "ti,omap4470-bandgap";
 	interrupts = <0 126 4>; /* talert */
-	ti,tshut-gpio = <86>;
+	gpios = <&gpio3 22 0>; /* tshut */
 };
 
 OMAP5430:
@@ -59,3 +60,15 @@ bandgap {
 	compatible = "ti,omap5430-bandgap";
 	interrupts = <0 126 4>; /* talert */
 };
+
+DRA752:
+bandgap {
+	reg = <0x4a0021e0 0xc
+		0x4a00232c 0xc
+		0x4a002380 0x2c
+		0x4a0023C0 0x3c
+		0x4a002564 0x8
+		0x4a002574 0x50>;
+	compatible = "ti,dra752-bandgap";
+	interrupts = <0 126 4>; /* talert */
+};

Documentation/devicetree/bindings/timer/marvell,orion-timer.txt

@@ -0,0 +1,17 @@
+Marvell Orion SoC timer
+
+Required properties:
+- compatible: shall be "marvell,orion-timer"
+- reg: base address of the timer register starting with TIMERS CONTROL register
+- interrupt-parent: phandle of the bridge interrupt controller
+- interrupts: should contain the interrupts for Timer0 and Timer1
+- clocks: phandle of timer reference clock (tclk)
+
+Example:
+	timer: timer {
+		compatible = "marvell,orion-timer";
+		reg = <0x20300 0x20>;
+		interrupt-parent = <&bridge_intc>;
+		interrupts = <1>, <2>;
+		clocks = <&core_clk 0>;
+	};

Documentation/devicetree/bindings/usb/twlxxxx-usb.txt

@@ -8,7 +8,7 @@ TWL6030 USB COMPARATOR
    usb interrupt number that raises VBUS interrupts when the controller has to
    act as device
  - usb-supply : phandle to the regulator device tree node. It should be vusb
-   if it is twl6030 or ldousb if it is twl6025 subclass.
+   if it is twl6030 or ldousb if it is twl6032 subclass.
 
 twl6030-usb {
 	compatible = "ti,twl6030-usb";

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -18,6 +18,7 @@ chrp	Common Hardware Reference Platform
 cirrus	Cirrus Logic, Inc.
 cortina	Cortina Systems, Inc.
 dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
+davicom	DAVICOM Semiconductor, Inc.
 denx	Denx Software Engineering
 emmicro	EM Microelectronic
 epson	Seiko Epson Corp.

Documentation/devicetree/bindings/watchdog/brcm,bcm2835-pm-wdog.txt

@@ -5,9 +5,14 @@ Required properties:
 - compatible : should be "brcm,bcm2835-pm-wdt"
 - reg : Specifies base physical address and size of the registers.
 
+Optional properties:
+
+- timeout-sec   : Contains the watchdog timeout in seconds
+
 Example:
 
 watchdog {
 	compatible = "brcm,bcm2835-pm-wdt";
 	reg = <0x7e100000 0x28>;
+	timeout-sec = <10>;
 };

Documentation/filesystems/xfs.txt

@@ -18,6 +18,8 @@ Mount Options
 =============
 
 When mounting an XFS filesystem, the following options are accepted.
+For boolean mount options, the names with the (*) suffix is the
+default behaviour.
 
   allocsize=size
 	Sets the buffered I/O end-of-file preallocation size when
@@ -25,97 +27,128 @@ When mounting an XFS filesystem, the following options are accepted.
 	Valid values for this option are page size (typically 4KiB)
 	through to 1GiB, inclusive, in power-of-2 increments.
 
-  attr2/noattr2
-	The options enable/disable (default is disabled for backward
-	compatibility on-disk) an "opportunistic" improvement to be
-	made in the way inline extended attributes are stored on-disk.
-	When the new form is used for the first time (by setting or
-	removing extended attributes) the on-disk superblock feature
-	bit field will be updated to reflect this format being in use.
+	The default behaviour is for dynamic end-of-file
+	preallocation size, which uses a set of heuristics to
+	optimise the preallocation size based on the current
+	allocation patterns within the file and the access patterns
+	to the file. Specifying a fixed allocsize value turns off
+	the dynamic behaviour.
+
+  attr2
+  noattr2
+	The options enable/disable an "opportunistic" improvement to
+	be made in the way inline extended attributes are stored
+	on-disk.  When the new form is used for the first time when
+	attr2 is selected (either when setting or removing extended
+	attributes) the on-disk superblock feature bit field will be
+	updated to reflect this format being in use.
+
+	The default behaviour is determined by the on-disk feature
+	bit indicating that attr2 behaviour is active. If either
+	mount option it set, then that becomes the new default used
+	by the filesystem.
 
 	CRC enabled filesystems always use the attr2 format, and so
 	will reject the noattr2 mount option if it is set.
 
-  barrier
-	Enables the use of block layer write barriers for writes into
-	the journal and unwritten extent conversion.  This allows for
-	drive level write caching to be enabled, for devices that
-	support write barriers.
+  barrier (*)
+  nobarrier
+	Enables/disables the use of block layer write barriers for
+	writes into the journal and for data integrity operations.
+	This allows for drive level write caching to be enabled, for
+	devices that support write barriers.
 
   discard
-	Issue command to let the block device reclaim space freed by the
-	filesystem.  This is useful for SSD devices, thinly provisioned
-	LUNs and virtual machine images, but may have a performance
-	impact.
-
-  dmapi
-	Enable the DMAPI (Data Management API) event callouts.
-	Use with the "mtpt" option.
-
-  grpid/bsdgroups and nogrpid/sysvgroups
-	These options define what group ID a newly created file gets.
-	When grpid is set, it takes the group ID of the directory in
-	which it is created; otherwise (the default) it takes the fsgid
-	of the current process, unless the directory has the setgid bit
-	set, in which case it takes the gid from the parent directory,
-	and also gets the setgid bit set if it is a directory itself.
-
-  ihashsize=value
-	In memory inode hashes have been removed, so this option has
-	no function as of August 2007. Option is deprecated.
-
-  ikeep/noikeep
-	When ikeep is specified, XFS does not delete empty inode clusters
-	and keeps them around on disk. ikeep is the traditional XFS
-	behaviour. When noikeep is specified, empty inode clusters
-	are returned to the free space pool. The default is noikeep for
-	non-DMAPI mounts, while ikeep is the default when DMAPI is in use.
-
-  inode64
-	Indicates that XFS is allowed to create inodes at any location
-	in the filesystem, including those which will result in inode
-	numbers occupying more than 32 bits of significance.  This is
-	the default allocation option. Applications which do not handle
-	inode numbers bigger than 32 bits, should use inode32 option.
+  nodiscard (*)
+	Enable/disable the issuing of commands to let the block
+	device reclaim space freed by the filesystem.  This is
+	useful for SSD devices, thinly provisioned LUNs and virtual
+	machine images, but may have a performance impact.
+
+	Note: It is currently recommended that you use the fstrim
+	application to discard unused blocks rather than the discard
+	mount option because the performance impact of this option
+	is quite severe.
+
+  grpid/bsdgroups
+  nogrpid/sysvgroups (*)
+	These options define what group ID a newly created file
+	gets.  When grpid is set, it takes the group ID of the
+	directory in which it is created; otherwise it takes the
+	fsgid of the current process, unless the directory has the
+	setgid bit set, in which case it takes the gid from the
+	parent directory, and also gets the setgid bit set if it is
+	a directory itself.
+
+  filestreams
+	Make the data allocator use the filestreams allocation mode
+	across the entire filesystem rather than just on directories
+	configured to use it.
+
+  ikeep
+  noikeep (*)
+	When ikeep is specified, XFS does not delete empty inode
+	clusters and keeps them around on disk.  When noikeep is
+	specified, empty inode clusters are returned to the free
+	space pool.
 
   inode32
-	Indicates that XFS is limited to create inodes at locations which
-	will not result in inode numbers with more than 32 bits of
-	significance. This is provided for backwards compatibility, since
-	64 bits inode numbers might cause problems for some applications
-	that cannot handle large inode numbers.
-
-  largeio/nolargeio
+  inode64 (*)
+	When inode32 is specified, it indicates that XFS limits
+	inode creation to locations which will not result in inode
+	numbers with more than 32 bits of significance.
+
+	When inode64 is specified, it indicates that XFS is allowed
+	to create inodes at any location in the filesystem,
+	including those which will result in inode numbers occupying
+	more than 32 bits of significance. 
+
+	inode32 is provided for backwards compatibility with older
+	systems and applications, since 64 bits inode numbers might
+	cause problems for some applications that cannot handle
+	large inode numbers.  If applications are in use which do
+	not handle inode numbers bigger than 32 bits, the inode32
+	option should be specified.
+
+
+  largeio
+  nolargeio (*)
 	If "nolargeio" is specified, the optimal I/O reported in
-	st_blksize by stat(2) will be as small as possible to allow user
-	applications to avoid inefficient read/modify/write I/O.
-	If "largeio" specified, a filesystem that has a "swidth" specified
-	will return the "swidth" value (in bytes) in st_blksize. If the
-	filesystem does not have a "swidth" specified but does specify
-	an "allocsize" then "allocsize" (in bytes) will be returned
-	instead.
-	If neither of these two options are specified, then filesystem
-	will behave as if "nolargeio" was specified.
+	st_blksize by stat(2) will be as small as possible to allow
+	user applications to avoid inefficient read/modify/write
+	I/O.  This is typically the page size of the machine, as
+	this is the granularity of the page cache.
+
+	If "largeio" specified, a filesystem that was created with a
+	"swidth" specified will return the "swidth" value (in bytes)
+	in st_blksize. If the filesystem does not have a "swidth"
+	specified but does specify an "allocsize" then "allocsize"
+	(in bytes) will be returned instead. Otherwise the behaviour
+	is the same as if "nolargeio" was specified.
 
   logbufs=value
-	Set the number of in-memory log buffers.  Valid numbers range
-	from 2-8 inclusive.
-	The default value is 8 buffers for filesystems with a
-	blocksize of 64KiB, 4 buffers for filesystems with a blocksize
-	of 32KiB, 3 buffers for filesystems with a blocksize of 16KiB
-	and 2 buffers for all other configurations.  Increasing the
-	number of buffers may increase performance on some workloads
-	at the cost of the memory used for the additional log buffers
-	and their associated control structures.
+	Set the number of in-memory log buffers.  Valid numbers
+	range from 2-8 inclusive.
+
+	The default value is 8 buffers.
+
+	If the memory cost of 8 log buffers is too high on small
+	systems, then it may be reduced at some cost to performance
+	on metadata intensive workloads. The logbsize option below
+	controls the size of each buffer and so is also relevent to
+	this case.
 
   logbsize=value
-	Set the size of each in-memory log buffer.
-	Size may be specified in bytes, or in kilobytes with a "k" suffix.
-	Valid sizes for version 1 and version 2 logs are 16384 (16k) and
-	32768 (32k).  Valid sizes for version 2 logs also include
-	65536 (64k), 131072 (128k) and 262144 (256k).
-	The default value for machines with more than 32MiB of memory
-	is 32768, machines with less memory use 16384 by default.
+	Set the size of each in-memory log buffer.  The size may be
+	specified in bytes, or in kilobytes with a "k" suffix.
+	Valid sizes for version 1 and version 2 logs are 16384 (16k)
+	and 32768 (32k).  Valid sizes for version 2 logs also
+	include 65536 (64k), 131072 (128k) and 262144 (256k). The
+	logbsize must be an integer multiple of the log
+	stripe unit configured at mkfs time.
+
+	The default value for for version 1 logs is 32768, while the
+	default value for version 2 logs is MAX(32768, log_sunit).
 
   logdev=device and rtdev=device
 	Use an external log (metadata journal) and/or real-time device.
@@ -124,16 +157,11 @@ When mounting an XFS filesystem, the following options are accepted.
 	optional, and the log section can be separate from the data
 	section or contained within it.
 
-  mtpt=mountpoint
-	Use with the "dmapi" option.  The value specified here will be
-	included in the DMAPI mount event, and should be the path of
-	the actual mountpoint that is used.
-
   noalign
-	Data allocations will not be aligned at stripe unit boundaries.
-
-  noatime
-	Access timestamps are not updated when a file is read.
+	Data allocations will not be aligned at stripe unit
+	boundaries. This is only relevant to filesystems created
+	with non-zero data alignment parameters (sunit, swidth) by
+	mkfs.
 
   norecovery
 	The filesystem will be mounted without running log recovery.
@@ -144,8 +172,14 @@ When mounting an XFS filesystem, the following options are accepted.
 	the mount will fail.
 
   nouuid
-	Don't check for double mounted file systems using the file system uuid.
-	This is useful to mount LVM snapshot volumes.
+	Don't check for double mounted file systems using the file
+	system uuid.  This is useful to mount LVM snapshot volumes,
+	and often used in combination with "norecovery" for mounting
+	read-only snapshots.
+
+  noquota
+	Forcibly turns off all quota accounting and enforcement
+	within the filesystem.
 
   uquota/usrquota/uqnoenforce/quota
 	User disk quota accounting enabled, and limits (optionally)
@@ -160,24 +194,64 @@ When mounting an XFS filesystem, the following options are accepted.
 	enforced.  Refer to xfs_quota(8) for further details.
 
   sunit=value and swidth=value
-	Used to specify the stripe unit and width for a RAID device or
-	a stripe volume.  "value" must be specified in 512-byte block
-	units.
-	If this option is not specified and the filesystem was made on
-	a stripe volume or the stripe width or unit were specified for
-	the RAID device at mkfs time, then the mount system call will
-	restore the value from the superblock.  For filesystems that
-	are made directly on RAID devices, these options can be used
-	to override the information in the superblock if the underlying
-	disk layout changes after the filesystem has been created.
-	The "swidth" option is required if the "sunit" option has been
-	specified, and must be a multiple of the "sunit" value.
+	Used to specify the stripe unit and width for a RAID device
+	or a stripe volume.  "value" must be specified in 512-byte
+	block units. These options are only relevant to filesystems
+	that were created with non-zero data alignment parameters.
+
+	The sunit and swidth parameters specified must be compatible
+	with the existing filesystem alignment characteristics.  In
+	general, that means the only valid changes to sunit are
+	increasing it by a power-of-2 multiple. Valid swidth values
+	are any integer multiple of a valid sunit value.
+
+	Typically the only time these mount options are necessary if
+	after an underlying RAID device has had it's geometry
+	modified, such as adding a new disk to a RAID5 lun and
+	reshaping it.
 
   swalloc
 	Data allocations will be rounded up to stripe width boundaries
 	when the current end of file is being extended and the file
 	size is larger than the stripe width size.
 
+  wsync
+	When specified, all filesystem namespace operations are
+	executed synchronously. This ensures that when the namespace
+	operation (create, unlink, etc) completes, the change to the
+	namespace is on stable storage. This is useful in HA setups
+	where failover must not result in clients seeing
+	inconsistent namespace presentation during or after a
+	failover event.
+
+
+Deprecated Mount Options
+========================
+
+  delaylog/nodelaylog
+	Delayed logging is the only logging method that XFS supports
+	now, so these mount options are now ignored.
+
+	Due for removal in 3.12.
+
+  ihashsize=value
+	In memory inode hashes have been removed, so this option has
+	no function as of August 2007. Option is deprecated.
+
+	Due for removal in 3.12.
+
+  irixsgid
+	This behaviour is now controlled by a sysctl, so the mount
+	option is ignored.
+
+	Due for removal in 3.12.
+
+  osyncisdsync
+  osyncisosync
+	O_SYNC and O_DSYNC are fully supported, so there is no need
+	for these options any more.
+
+	Due for removal in 3.12.
 
 sysctls
 =======
@@ -189,15 +263,20 @@ The following sysctls are available for the XFS filesystem:
 	in /proc/fs/xfs/stat.  It then immediately resets to "0".
 
   fs.xfs.xfssyncd_centisecs	(Min: 100  Default: 3000  Max: 720000)
-  	The interval at which the xfssyncd thread flushes metadata
-  	out to disk.  This thread will flush log activity out, and
-  	do some processing on unlinked inodes.
+	The interval at which the filesystem flushes metadata
+	out to disk and runs internal cache cleanup routines.
 
-  fs.xfs.xfsbufd_centisecs	(Min: 50  Default: 100	Max: 3000)
-	The interval at which xfsbufd scans the dirty metadata buffers list.
+  fs.xfs.filestream_centisecs	(Min: 1  Default: 3000  Max: 360000)
+	The interval at which the filesystem ages filestreams cache
+	references and returns timed-out AGs back to the free stream
+	pool.
 
-  fs.xfs.age_buffer_centisecs	(Min: 100  Default: 1500  Max: 720000)
-	The age at which xfsbufd flushes dirty metadata buffers to disk.
+  fs.xfs.speculative_prealloc_lifetime
+		(Units: seconds   Min: 1  Default: 300  Max: 86400)
+	The interval at which the background scanning for inodes
+	with unused speculative preallocation runs. The scan
+	removes unused preallocation from clean inodes and releases
+	the unused space back to the free pool.
 
   fs.xfs.error_level		(Min: 0  Default: 3  Max: 11)
 	A volume knob for error reporting when internal errors occur.
@@ -254,9 +333,31 @@ The following sysctls are available for the XFS filesystem:
 	by the xfs_io(8) chattr command on a directory to be
 	inherited by files in that directory.
 
+  fs.xfs.inherit_nodefrag	(Min: 0  Default: 1  Max: 1)
+	Setting this to "1" will cause the "nodefrag" flag set
+	by the xfs_io(8) chattr command on a directory to be
+	inherited by files in that directory.
+
   fs.xfs.rotorstep		(Min: 1  Default: 1  Max: 256)
 	In "inode32" allocation mode, this option determines how many
 	files the allocator attempts to allocate in the same allocation
 	group before moving to the next allocation group.  The intent
 	is to control the rate at which the allocator moves between
 	allocation groups when allocating extents for new files.
+
+Deprecated Sysctls
+==================
+
+  fs.xfs.xfsbufd_centisecs	(Min: 50  Default: 100	Max: 3000)
+	Dirty metadata is now tracked by the log subsystem and
+	flushing is driven by log space and idling demands. The
+	xfsbufd no longer exists, so this syctl does nothing.
+
+	Due for removal in 3.14.
+
+  fs.xfs.age_buffer_centisecs	(Min: 100  Default: 1500  Max: 720000)
+	Dirty metadata is now tracked by the log subsystem and
+	flushing is driven by log space and idling demands. The
+	xfsbufd no longer exists, so this syctl does nothing.
+
+	Due for removal in 3.14.

Documentation/kbuild/kconfig.txt

@@ -174,6 +174,19 @@ Searching in menuconfig:
 
 		/^hotplug
 
+	When searching, symbols are sorted thus:
+	  - exact match first: an exact match is when the search matches
+	    the complete symbol name;
+	  - alphabetical order: when two symbols do not match exactly,
+	    they are sorted in alphabetical order (in the user's current
+	    locale).
+	For example: ^ATH.K matches:
+	    ATH5K ATH9K ATH5K_AHB ATH5K_DEBUG [...] ATH6KL ATH6KL_DEBUG
+	    [...] ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_COMMON [...]
+	of which only ATH5K and ATH9K match exactly and so are sorted
+	first (and in alphabetical order), then come all other symbols,
+	sorted in alphabetical order.
+
 ______________________________________________________________________
 User interface options for 'menuconfig'
 

Documentation/kernel-parameters.txt

@@ -3081,6 +3081,19 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			See also Documentation/trace/ftrace.txt "trace options"
 			section.
 
+	traceoff_on_warning
+			[FTRACE] enable this option to disable tracing when a
+			warning is hit. This turns off "tracing_on". Tracing can
+			be enabled again by echoing '1' into the "tracing_on"
+			file located in /sys/kernel/debug/tracing/
+
+			This option is useful, as it disables the trace before
+			the WARNING dump is called, which prevents the trace to
+			be filled with content caused by the warning output.
+
+			This option can also be set at run time via the sysctl
+			option:  kernel/traceoff_on_warning
+
 	transparent_hugepage=
 			[KNL]
 			Format: [always|madvise|never]

Documentation/media-framework.txt

@@ -265,7 +265,7 @@ connected to another pad through an enabled link
 	media_entity_find_link(struct media_pad *source,
 			       struct media_pad *sink);
 
-	media_entity_remote_source(struct media_pad *pad);
+	media_entity_remote_pad(struct media_pad *pad);
 
 Refer to the kerneldoc documentation for more information.
 

Documentation/networking/.gitignore

@@ -1 +0,0 @@
-ifenslave

Documentation/networking/00-INDEX

@@ -88,8 +88,6 @@ gianfar.txt
 	- Gianfar Ethernet Driver.
 ieee802154.txt
 	- Linux IEEE 802.15.4 implementation, API and drivers
-ifenslave.c
-	- Configure network interfaces for parallel routing (bonding).
 igb.txt
 	- README for the Intel Gigabit Ethernet Driver (igb).
 igbvf.txt

Documentation/networking/Makefile

@@ -1,11 +1,6 @@
 # kbuild trick to avoid linker error. Can be omitted if a module is built.
 obj- := dummy.o
 
-# List of programs to build
-hostprogs-y := ifenslave
-
-HOSTCFLAGS_ifenslave.o += -I$(objtree)/usr/include
-
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
 

Documentation/networking/arcnet.txt

@@ -70,9 +70,10 @@ list, mail to linux-arcnet@tichy.ch.uj.edu.pl.
 There are archives of the mailing list at:
 	http://epistolary.org/mailman/listinfo.cgi/arcnet
 
-The people on linux-net@vger.kernel.org have also been known to be very
-helpful, especially when we're talking about ALPHA Linux kernels that may or
-may not work right in the first place.
+The people on linux-net@vger.kernel.org (now defunct, replaced by
+netdev@vger.kernel.org) have also been known to be very helpful, especially
+when we're talking about ALPHA Linux kernels that may or may not work right
+in the first place.
 
 
 Other Drivers and Info

Documentation/networking/bonding.txt

@@ -104,8 +104,7 @@ Table of Contents
 ==============================
 
 	Most popular distro kernels ship with the bonding driver
-already available as a module and the ifenslave user level control
-program installed and ready for use. If your distro does not, or you
+already available as a module. If your distro does not, or you
 have need to compile bonding from source (e.g., configuring and
 installing a mainline kernel from kernel.org), you'll need to perform
 the following steps:
@@ -124,46 +123,13 @@ device support" section.  It is recommended that you configure the
 driver as module since it is currently the only way to pass parameters
 to the driver or configure more than one bonding device.
 
-	Build and install the new kernel and modules, then continue
-below to install ifenslave.
+	Build and install the new kernel and modules.
 
-1.2 Install ifenslave Control Utility
+1.2 Bonding Control Utility
 -------------------------------------
 
-	The ifenslave user level control program is included in the
-kernel source tree, in the file Documentation/networking/ifenslave.c.
-It is generally recommended that you use the ifenslave that
-corresponds to the kernel that you are using (either from the same
-source tree or supplied with the distro), however, ifenslave
-executables from older kernels should function (but features newer
-than the ifenslave release are not supported).  Running an ifenslave
-that is newer than the kernel is not supported, and may or may not
-work.
-
-	To install ifenslave, do the following:
-
-# gcc -Wall -O -I/usr/src/linux/include ifenslave.c -o ifenslave
-# cp ifenslave /sbin/ifenslave
-
-	If your kernel source is not in "/usr/src/linux," then replace
-"/usr/src/linux/include" in the above with the location of your kernel
-source include directory.
-
-	You may wish to back up any existing /sbin/ifenslave, or, for
-testing or informal use, tag the ifenslave to the kernel version
-(e.g., name the ifenslave executable /sbin/ifenslave-2.6.10).
-
-IMPORTANT NOTE:
-
-	If you omit the "-I" or specify an incorrect directory, you
-may end up with an ifenslave that is incompatible with the kernel
-you're trying to build it for.  Some distros (e.g., Red Hat from 7.1
-onwards) do not have /usr/include/linux symbolically linked to the
-default kernel source include directory.
-
-SECOND IMPORTANT NOTE:
-	If you plan to configure bonding using sysfs or using the
-/etc/network/interfaces file, you do not need to use ifenslave.
+	 It is recommended to configure bonding via iproute2 (netlink)
+or sysfs, the old ifenslave control utility is obsolete.
 
 2. Bonding Driver Options
 =========================
@@ -337,6 +303,12 @@ arp_validate
 	such a situation, validation of backup slaves must be
 	disabled.
 
+	The validation of ARP requests on backup slaves is mainly
+	helping bonding to decide which slaves are more likely to
+	work in case of the active slave failure, it doesn't really
+	guarantee that the backup slave will work if it's selected
+	as the next active slave.
+
 	This option is useful in network configurations in which
 	multiple bonding hosts are concurrently issuing ARPs to one or
 	more targets beyond a common switch.  Should the link between
@@ -349,6 +321,25 @@ arp_validate
 
 	This option was added in bonding version 3.1.0.
 
+arp_all_targets
+
+	Specifies the quantity of arp_ip_targets that must be reachable
+	in order for the ARP monitor to consider a slave as being up.
+	This option affects only active-backup mode for slaves with
+	arp_validation enabled.
+
+	Possible values are:
+
+	any or 0
+
+		consider the slave up only when any of the arp_ip_targets
+		is reachable
+
+	all or 1
+
+		consider the slave up only when all of the arp_ip_targets
+		are reachable
+
 downdelay
 
 	Specifies the time, in milliseconds, to wait before disabling
@@ -851,7 +842,7 @@ resend_igmp
 ==============================
 
 	You can configure bonding using either your distro's network
-initialization scripts, or manually using either ifenslave or the
+initialization scripts, or manually using either iproute2 or the
 sysfs interface.  Distros generally use one of three packages for the
 network initialization scripts: initscripts, sysconfig or interfaces.
 Recent versions of these packages have support for bonding, while older
@@ -1160,7 +1151,7 @@ not support this method for specifying multiple bonding interfaces; for
 those instances, see the "Configuring Multiple Bonds Manually" section,
 below.
 
-3.3 Configuring Bonding Manually with Ifenslave
+3.3 Configuring Bonding Manually with iproute2
 -----------------------------------------------
 
 	This section applies to distros whose network initialization
@@ -1171,7 +1162,7 @@ version 8.
 	The general method for these systems is to place the bonding
 module parameters into a config file in /etc/modprobe.d/ (as
 appropriate for the installed distro), then add modprobe and/or
-ifenslave commands to the system's global init script.  The name of
+`ip link` commands to the system's global init script.  The name of
 the global init script differs; for sysconfig, it is
 /etc/init.d/boot.local and for initscripts it is /etc/rc.d/rc.local.
 
@@ -1183,8 +1174,8 @@ reboots, edit the appropriate file (/etc/init.d/boot.local or
 modprobe bonding mode=balance-alb miimon=100
 modprobe e100
 ifconfig bond0 192.168.1.1 netmask 255.255.255.0 up
-ifenslave bond0 eth0
-ifenslave bond0 eth1
+ip link set eth0 master bond0
+ip link set eth1 master bond0
 
 	Replace the example bonding module parameters and bond0
 network configuration (IP address, netmask, etc) with the appropriate

Documentation/networking/ifenslave.c

@@ -1,1105 +0,0 @@
-/* Mode: C;
- * ifenslave.c: Configure network interfaces for parallel routing.
- *
- *	This program controls the Linux implementation of running multiple
- *	network interfaces in parallel.
- *
- * Author:	Donald Becker <becker@cesdis.gsfc.nasa.gov>
- *		Copyright 1994-1996 Donald Becker
- *
- *		This program is free software; you can redistribute it
- *		and/or modify it under the terms of the GNU General Public
- *		License as published by the Free Software Foundation.
- *
- *	The author may be reached as becker@CESDIS.gsfc.nasa.gov, or C/O
- *	Center of Excellence in Space Data and Information Sciences
- *	   Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
- *
- *  Changes :
- *    - 2000/10/02 Willy Tarreau <willy at meta-x.org> :
- *       - few fixes. Master's MAC address is now correctly taken from
- *         the first device when not previously set ;
- *       - detach support : call BOND_RELEASE to detach an enslaved interface.
- *       - give a mini-howto from command-line help : # ifenslave -h
- *
- *    - 2001/02/16 Chad N. Tindel <ctindel at ieee dot org> :
- *       - Master is now brought down before setting the MAC address.  In
- *         the 2.4 kernel you can't change the MAC address while the device is
- *         up because you get EBUSY.
- *
- *    - 2001/09/13 Takao Indoh <indou dot takao at jp dot fujitsu dot com>
- *       - Added the ability to change the active interface on a mode 1 bond
- *         at runtime.
- *
- *    - 2001/10/23 Chad N. Tindel <ctindel at ieee dot org> :
- *       - No longer set the MAC address of the master.  The bond device will
- *         take care of this itself
- *       - Try the SIOC*** versions of the bonding ioctls before using the
- *         old versions
- *    - 2002/02/18 Erik Habbinga <erik_habbinga @ hp dot com> :
- *       - ifr2.ifr_flags was not initialized in the hwaddr_notset case,
- *         SIOCGIFFLAGS now called before hwaddr_notset test
- *
- *    - 2002/10/31 Tony Cureington <tony.cureington * hp_com> :
- *       - If the master does not have a hardware address when the first slave
- *         is enslaved, the master is assigned the hardware address of that
- *         slave - there is a comment in bonding.c stating "ifenslave takes
- *         care of this now." This corrects the problem of slaves having
- *         different hardware addresses in active-backup mode when
- *         multiple interfaces are specified on a single ifenslave command
- *         (ifenslave bond0 eth0 eth1).
- *
- *    - 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
- *                   Shmulik Hen <shmulik.hen at intel dot com>
- *       - Moved setting the slave's mac address and openning it, from
- *         the application to the driver. This enables support of modes
- *         that need to use the unique mac address of each slave.
- *         The driver also takes care of closing the slave and restoring its
- *         original mac address upon release.
- *         In addition, block possibility of enslaving before the master is up.
- *         This prevents putting the system in an undefined state.
- *
- *    - 2003/05/01 - Amir Noam <amir.noam at intel dot com>
- *       - Added ABI version control to restore compatibility between
- *         new/old ifenslave and new/old bonding.
- *       - Prevent adding an adapter that is already a slave.
- *         Fixes the problem of stalling the transmission and leaving
- *         the slave in a down state.
- *
- *    - 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com>
- *       - Prevent enslaving if the bond device is down.
- *         Fixes the problem of leaving the system in unstable state and
- *         halting when trying to remove the module.
- *       - Close socket on all abnormal exists.
- *       - Add versioning scheme that follows that of the bonding driver.
- *         current version is 1.0.0 as a base line.
- *
- *    - 2003/05/22 - Jay Vosburgh <fubar at us dot ibm dot com>
- *	 - ifenslave -c was broken; it's now fixed
- *	 - Fixed problem with routes vanishing from master during enslave
- *	   processing.
- *
- *    - 2003/05/27 - Amir Noam <amir.noam at intel dot com>
- *	 - Fix backward compatibility issues:
- *	   For drivers not using ABI versions, slave was set down while
- *	   it should be left up before enslaving.
- *	   Also, master was not set down and the default set_mac_address()
- *	   would fail and generate an error message in the system log.
- * 	 - For opt_c: slave should not be set to the master's setting
- *	   while it is running. It was already set during enslave. To
- *	   simplify things, it is now handled separately.
- *
- *    - 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com>
- *	 - Code cleanup and style changes
- *	   set version to 1.1.0
- */
-
-#define APP_VERSION	"1.1.0"
-#define APP_RELDATE	"December 1, 2003"
-#define APP_NAME	"ifenslave"
-
-static char *version =
-APP_NAME ".c:v" APP_VERSION " (" APP_RELDATE ")\n"
-"o Donald Becker (becker@cesdis.gsfc.nasa.gov).\n"
-"o Detach support added on 2000/10/02 by Willy Tarreau (willy at meta-x.org).\n"
-"o 2.4 kernel support added on 2001/02/16 by Chad N. Tindel\n"
-"  (ctindel at ieee dot org).\n";
-
-static const char *usage_msg =
-"Usage: ifenslave [-f] <master-if> <slave-if> [<slave-if>...]\n"
-"       ifenslave -d   <master-if> <slave-if> [<slave-if>...]\n"
-"       ifenslave -c   <master-if> <slave-if>\n"
-"       ifenslave --help\n";
-
-static const char *help_msg =
-"\n"
-"       To create a bond device, simply follow these three steps :\n"
-"       - ensure that the required drivers are properly loaded :\n"
-"         # modprobe bonding ; modprobe <3c59x|eepro100|pcnet32|tulip|...>\n"
-"       - assign an IP address to the bond device :\n"
-"         # ifconfig bond0 <addr> netmask <mask> broadcast <bcast>\n"
-"       - attach all the interfaces you need to the bond device :\n"
-"         # ifenslave [{-f|--force}] bond0 eth0 [eth1 [eth2]...]\n"
-"         If bond0 didn't have a MAC address, it will take eth0's. Then, all\n"
-"         interfaces attached AFTER this assignment will get the same MAC addr.\n"
-"         (except for ALB/TLB modes)\n"
-"\n"
-"       To set the bond device down and automatically release all the slaves :\n"
-"         # ifconfig bond0 down\n"
-"\n"
-"       To detach a dead interface without setting the bond device down :\n"
-"         # ifenslave {-d|--detach} bond0 eth0 [eth1 [eth2]...]\n"
-"\n"
-"       To change active slave :\n"
-"         # ifenslave {-c|--change-active} bond0 eth0\n"
-"\n"
-"       To show master interface info\n"
-"         # ifenslave bond0\n"
-"\n"
-"       To show all interfaces info\n"
-"       # ifenslave {-a|--all-interfaces}\n"
-"\n"
-"       To be more verbose\n"
-"       # ifenslave {-v|--verbose} ...\n"
-"\n"
-"       # ifenslave {-u|--usage}   Show usage\n"
-"       # ifenslave {-V|--version} Show version\n"
-"       # ifenslave {-h|--help}    This message\n"
-"\n";
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <linux/if.h>
-#include <net/if_arp.h>
-#include <linux/if_ether.h>
-#include <linux/if_bonding.h>
-#include <linux/sockios.h>
-
-typedef unsigned long long u64;	/* hack, so we may include kernel's ethtool.h */
-typedef __uint32_t u32;		/* ditto */
-typedef __uint16_t u16;		/* ditto */
-typedef __uint8_t u8;		/* ditto */
-#include <linux/ethtool.h>
-
-struct option longopts[] = {
-	/* { name  has_arg  *flag  val } */
-	{"all-interfaces",	0, 0, 'a'},	/* Show all interfaces. */
-	{"change-active",	0, 0, 'c'},	/* Change the active slave.  */
-	{"detach",		0, 0, 'd'},	/* Detach a slave interface. */
-	{"force",		0, 0, 'f'},	/* Force the operation. */
-	{"help",		0, 0, 'h'},	/* Give help */
-	{"usage",		0, 0, 'u'},	/* Give usage */
-	{"verbose",		0, 0, 'v'},	/* Report each action taken. */
-	{"version",		0, 0, 'V'},	/* Emit version information. */
-	{ 0, 0, 0, 0}
-};
-
-/* Command-line flags. */
-unsigned int
-opt_a = 0,	/* Show-all-interfaces flag. */
-opt_c = 0,	/* Change-active-slave flag. */
-opt_d = 0,	/* Detach a slave interface. */
-opt_f = 0,	/* Force the operation. */
-opt_h = 0,	/* Help */
-opt_u = 0,	/* Usage */
-opt_v = 0,	/* Verbose flag. */
-opt_V = 0;	/* Version */
-
-int skfd = -1;		/* AF_INET socket for ioctl() calls.*/
-int abi_ver = 0;	/* userland - kernel ABI version */
-int hwaddr_set = 0;	/* Master's hwaddr is set */
-int saved_errno;
-
-struct ifreq master_mtu, master_flags, master_hwaddr;
-struct ifreq slave_mtu, slave_flags, slave_hwaddr;
-
-struct dev_ifr {
-	struct ifreq *req_ifr;
-	char *req_name;
-	int req_type;
-};
-
-struct dev_ifr master_ifra[] = {
-	{&master_mtu,     "SIOCGIFMTU",     SIOCGIFMTU},
-	{&master_flags,   "SIOCGIFFLAGS",   SIOCGIFFLAGS},
-	{&master_hwaddr,  "SIOCGIFHWADDR",  SIOCGIFHWADDR},
-	{NULL, "", 0}
-};
-
-struct dev_ifr slave_ifra[] = {
-	{&slave_mtu,     "SIOCGIFMTU",     SIOCGIFMTU},
-	{&slave_flags,   "SIOCGIFFLAGS",   SIOCGIFFLAGS},
-	{&slave_hwaddr,  "SIOCGIFHWADDR",  SIOCGIFHWADDR},
-	{NULL, "", 0}
-};
-
-static void if_print(char *ifname);
-static int get_drv_info(char *master_ifname);
-static int get_if_settings(char *ifname, struct dev_ifr ifra[]);
-static int get_slave_flags(char *slave_ifname);
-static int set_master_hwaddr(char *master_ifname, struct sockaddr *hwaddr);
-static int set_slave_hwaddr(char *slave_ifname, struct sockaddr *hwaddr);
-static int set_slave_mtu(char *slave_ifname, int mtu);
-static int set_if_flags(char *ifname, short flags);
-static int set_if_up(char *ifname, short flags);
-static int set_if_down(char *ifname, short flags);
-static int clear_if_addr(char *ifname);
-static int set_if_addr(char *master_ifname, char *slave_ifname);
-static int change_active(char *master_ifname, char *slave_ifname);
-static int enslave(char *master_ifname, char *slave_ifname);
-static int release(char *master_ifname, char *slave_ifname);
-#define v_print(fmt, args...)	\
-	if (opt_v)		\
-		fprintf(stderr, fmt, ## args )
-
-int main(int argc, char *argv[])
-{
-	char **spp, *master_ifname, *slave_ifname;
-	int c, i, rv;
-	int res = 0;
-	int exclusive = 0;
-
-	while ((c = getopt_long(argc, argv, "acdfhuvV", longopts, 0)) != EOF) {
-		switch (c) {
-		case 'a': opt_a++; exclusive++; break;
-		case 'c': opt_c++; exclusive++; break;
-		case 'd': opt_d++; exclusive++; break;
-		case 'f': opt_f++; exclusive++; break;
-		case 'h': opt_h++; exclusive++; break;
-		case 'u': opt_u++; exclusive++; break;
-		case 'v': opt_v++; break;
-		case 'V': opt_V++; exclusive++; break;
-
-		case '?':
-			fprintf(stderr, "%s", usage_msg);
-			res = 2;
-			goto out;
-		}
-	}
-
-	/* options check */
-	if (exclusive > 1) {
-		fprintf(stderr, "%s", usage_msg);
-		res = 2;
-		goto out;
-	}
-
-	if (opt_v || opt_V) {
-		printf("%s", version);
-		if (opt_V) {
-			res = 0;
-			goto out;
-		}
-	}
-
-	if (opt_u) {
-		printf("%s", usage_msg);
-		res = 0;
-		goto out;
-	}
-
-	if (opt_h) {
-		printf("%s", usage_msg);
-		printf("%s", help_msg);
-		res = 0;
-		goto out;
-	}
-
-	/* Open a basic socket */
-	if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
-		perror("socket");
-		res = 1;
-		goto out;
-	}
-
-	if (opt_a) {
-		if (optind == argc) {
-			/* No remaining args */
-			/* show all interfaces */
-			if_print((char *)NULL);
-			goto out;
-		} else {
-			/* Just show usage */
-			fprintf(stderr, "%s", usage_msg);
-			res = 2;
-			goto out;
-		}
-	}
-
-	/* Copy the interface name */
-	spp = argv + optind;
-	master_ifname = *spp++;
-
-	if (master_ifname == NULL) {
-		fprintf(stderr, "%s", usage_msg);
-		res = 2;
-		goto out;
-	}
-
-	/* exchange abi version with bonding module */
-	res = get_drv_info(master_ifname);
-	if (res) {
-		fprintf(stderr,
-			"Master '%s': Error: handshake with driver failed. "
-			"Aborting\n",
-			master_ifname);
-		goto out;
-	}
-
-	slave_ifname = *spp++;
-
-	if (slave_ifname == NULL) {
-		if (opt_d || opt_c) {
-			fprintf(stderr, "%s", usage_msg);
-			res = 2;
-			goto out;
-		}
-
-		/* A single arg means show the
-		 * configuration for this interface
-		 */
-		if_print(master_ifname);
-		goto out;
-	}
-
-	res = get_if_settings(master_ifname, master_ifra);
-	if (res) {
-		/* Probably a good reason not to go on */
-		fprintf(stderr,
-			"Master '%s': Error: get settings failed: %s. "
-			"Aborting\n",
-			master_ifname, strerror(res));
-		goto out;
-	}
-
-	/* check if master is indeed a master;
-	 * if not then fail any operation
-	 */
-	if (!(master_flags.ifr_flags & IFF_MASTER)) {
-		fprintf(stderr,
-			"Illegal operation; the specified interface '%s' "
-			"is not a master. Aborting\n",
-			master_ifname);
-		res = 1;
-		goto out;
-	}
-
-	/* check if master is up; if not then fail any operation */
-	if (!(master_flags.ifr_flags & IFF_UP)) {
-		fprintf(stderr,
-			"Illegal operation; the specified master interface "
-			"'%s' is not up.\n",
-			master_ifname);
-		res = 1;
-		goto out;
-	}
-
-	/* Only for enslaving */
-	if (!opt_c && !opt_d) {
-		sa_family_t master_family = master_hwaddr.ifr_hwaddr.sa_family;
-		unsigned char *hwaddr =
-			(unsigned char *)master_hwaddr.ifr_hwaddr.sa_data;
-
-		/* The family '1' is ARPHRD_ETHER for ethernet. */
-		if (master_family != 1 && !opt_f) {
-			fprintf(stderr,
-				"Illegal operation: The specified master "
-				"interface '%s' is not ethernet-like.\n "
-				"This program is designed to work with "
-				"ethernet-like network interfaces.\n "
-				"Use the '-f' option to force the "
-				"operation.\n",
-				master_ifname);
-			res = 1;
-			goto out;
-		}
-
-		/* Check master's hw addr */
-		for (i = 0; i < 6; i++) {
-			if (hwaddr[i] != 0) {
-				hwaddr_set = 1;
-				break;
-			}
-		}
-
-		if (hwaddr_set) {
-			v_print("current hardware address of master '%s' "
-				"is %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
-				"type %d\n",
-				master_ifname,
-				hwaddr[0], hwaddr[1],
-				hwaddr[2], hwaddr[3],
-				hwaddr[4], hwaddr[5],
-				master_family);
-		}
-	}
-
-	/* Accepts only one slave */
-	if (opt_c) {
-		/* change active slave */
-		res = get_slave_flags(slave_ifname);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: get flags failed. "
-				"Aborting\n",
-				slave_ifname);
-			goto out;
-		}
-		res = change_active(master_ifname, slave_ifname);
-		if (res) {
-			fprintf(stderr,
-				"Master '%s', Slave '%s': Error: "
-				"Change active failed\n",
-				master_ifname, slave_ifname);
-		}
-	} else {
-		/* Accept multiple slaves */
-		do {
-			if (opt_d) {
-				/* detach a slave interface from the master */
-				rv = get_slave_flags(slave_ifname);
-				if (rv) {
-					/* Can't work with this slave. */
-					/* remember the error and skip it*/
-					fprintf(stderr,
-						"Slave '%s': Error: get flags "
-						"failed. Skipping\n",
-						slave_ifname);
-					res = rv;
-					continue;
-				}
-				rv = release(master_ifname, slave_ifname);
-				if (rv) {
-					fprintf(stderr,
-						"Master '%s', Slave '%s': Error: "
-						"Release failed\n",
-						master_ifname, slave_ifname);
-					res = rv;
-				}
-			} else {
-				/* attach a slave interface to the master */
-				rv = get_if_settings(slave_ifname, slave_ifra);
-				if (rv) {
-					/* Can't work with this slave. */
-					/* remember the error and skip it*/
-					fprintf(stderr,
-						"Slave '%s': Error: get "
-						"settings failed: %s. "
-						"Skipping\n",
-						slave_ifname, strerror(rv));
-					res = rv;
-					continue;
-				}
-				rv = enslave(master_ifname, slave_ifname);
-				if (rv) {
-					fprintf(stderr,
-						"Master '%s', Slave '%s': Error: "
-						"Enslave failed\n",
-						master_ifname, slave_ifname);
-					res = rv;
-				}
-			}
-		} while ((slave_ifname = *spp++) != NULL);
-	}
-
-out:
-	if (skfd >= 0) {
-		close(skfd);
-	}
-
-	return res;
-}
-
-static short mif_flags;
-
-/* Get the inteface configuration from the kernel. */
-static int if_getconfig(char *ifname)
-{
-	struct ifreq ifr;
-	int metric, mtu;	/* Parameters of the master interface. */
-	struct sockaddr dstaddr, broadaddr, netmask;
-	unsigned char *hwaddr;
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
-		return -1;
-	mif_flags = ifr.ifr_flags;
-	printf("The result of SIOCGIFFLAGS on %s is %x.\n",
-	       ifname, ifr.ifr_flags);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFADDR, &ifr) < 0)
-		return -1;
-	printf("The result of SIOCGIFADDR is %2.2x.%2.2x.%2.2x.%2.2x.\n",
-	       ifr.ifr_addr.sa_data[0], ifr.ifr_addr.sa_data[1],
-	       ifr.ifr_addr.sa_data[2], ifr.ifr_addr.sa_data[3]);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
-		return -1;
-
-	/* Gotta convert from 'char' to unsigned for printf(). */
-	hwaddr = (unsigned char *)ifr.ifr_hwaddr.sa_data;
-	printf("The result of SIOCGIFHWADDR is type %d  "
-	       "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n",
-	       ifr.ifr_hwaddr.sa_family, hwaddr[0], hwaddr[1],
-	       hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0) {
-		metric = 0;
-	} else
-		metric = ifr.ifr_metric;
-	printf("The result of SIOCGIFMETRIC is %d\n", metric);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
-		mtu = 0;
-	else
-		mtu = ifr.ifr_mtu;
-	printf("The result of SIOCGIFMTU is %d\n", mtu);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) < 0) {
-		memset(&dstaddr, 0, sizeof(struct sockaddr));
-	} else
-		dstaddr = ifr.ifr_dstaddr;
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) < 0) {
-		memset(&broadaddr, 0, sizeof(struct sockaddr));
-	} else
-		broadaddr = ifr.ifr_broadaddr;
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFNETMASK, &ifr) < 0) {
-		memset(&netmask, 0, sizeof(struct sockaddr));
-	} else
-		netmask = ifr.ifr_netmask;
-
-	return 0;
-}
-
-static void if_print(char *ifname)
-{
-	char buff[1024];
-	struct ifconf ifc;
-	struct ifreq *ifr;
-	int i;
-
-	if (ifname == (char *)NULL) {
-		ifc.ifc_len = sizeof(buff);
-		ifc.ifc_buf = buff;
-		if (ioctl(skfd, SIOCGIFCONF, &ifc) < 0) {
-			perror("SIOCGIFCONF failed");
-			return;
-		}
-
-		ifr = ifc.ifc_req;
-		for (i = ifc.ifc_len / sizeof(struct ifreq); --i >= 0; ifr++) {
-			if (if_getconfig(ifr->ifr_name) < 0) {
-				fprintf(stderr,
-					"%s: unknown interface.\n",
-					ifr->ifr_name);
-				continue;
-			}
-
-			if (((mif_flags & IFF_UP) == 0) && !opt_a) continue;
-			/*ife_print(&ife);*/
-		}
-	} else {
-		if (if_getconfig(ifname) < 0) {
-			fprintf(stderr,
-				"%s: unknown interface.\n", ifname);
-		}
-	}
-}
-
-static int get_drv_info(char *master_ifname)
-{
-	struct ifreq ifr;
-	struct ethtool_drvinfo info;
-	char *endptr;
-
-	memset(&ifr, 0, sizeof(ifr));
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	ifr.ifr_data = (caddr_t)&info;
-
-	info.cmd = ETHTOOL_GDRVINFO;
-	strncpy(info.driver, "ifenslave", 32);
-	snprintf(info.fw_version, 32, "%d", BOND_ABI_VERSION);
-
-	if (ioctl(skfd, SIOCETHTOOL, &ifr) < 0) {
-		if (errno == EOPNOTSUPP) {
-			goto out;
-		}
-
-		saved_errno = errno;
-		v_print("Master '%s': Error: get bonding info failed %s\n",
-			master_ifname, strerror(saved_errno));
-		return 1;
-	}
-
-	abi_ver = strtoul(info.fw_version, &endptr, 0);
-	if (*endptr) {
-                v_print("Master '%s': Error: got invalid string as an ABI "
-			"version from the bonding module\n",
-			master_ifname);
-		return 1;
-	}
-
-out:
-	v_print("ABI ver is %d\n", abi_ver);
-
-	return 0;
-}
-
-static int change_active(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	if (!(slave_flags.ifr_flags & IFF_SLAVE)) {
-		fprintf(stderr,
-			"Illegal operation: The specified slave interface "
-			"'%s' is not a slave\n",
-			slave_ifname);
-		return 1;
-	}
-
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ);
-	if ((ioctl(skfd, SIOCBONDCHANGEACTIVE, &ifr) < 0) &&
-	    (ioctl(skfd, BOND_CHANGE_ACTIVE_OLD, &ifr) < 0)) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCBONDCHANGEACTIVE failed: "
-			"%s\n",
-			master_ifname, strerror(saved_errno));
-		res = 1;
-	}
-
-	return res;
-}
-
-static int enslave(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	if (slave_flags.ifr_flags & IFF_SLAVE) {
-		fprintf(stderr,
-			"Illegal operation: The specified slave interface "
-			"'%s' is already a slave\n",
-			slave_ifname);
-		return 1;
-	}
-
-	res = set_if_down(slave_ifname, slave_flags.ifr_flags);
-	if (res) {
-		fprintf(stderr,
-			"Slave '%s': Error: bring interface down failed\n",
-			slave_ifname);
-		return res;
-	}
-
-	if (abi_ver < 2) {
-		/* Older bonding versions would panic if the slave has no IP
-		 * address, so get the IP setting from the master.
-		 */
-		set_if_addr(master_ifname, slave_ifname);
-	} else {
-		res = clear_if_addr(slave_ifname);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: clear address failed\n",
-				slave_ifname);
-			return res;
-		}
-	}
-
-	if (master_mtu.ifr_mtu != slave_mtu.ifr_mtu) {
-		res = set_slave_mtu(slave_ifname, master_mtu.ifr_mtu);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: set MTU failed\n",
-				slave_ifname);
-			return res;
-		}
-	}
-
-	if (hwaddr_set) {
-		/* Master already has an hwaddr
-		 * so set it's hwaddr to the slave
-		 */
-		if (abi_ver < 1) {
-			/* The driver is using an old ABI, so
-			 * the application sets the slave's
-			 * hwaddr
-			 */
-			res = set_slave_hwaddr(slave_ifname,
-					       &(master_hwaddr.ifr_hwaddr));
-			if (res) {
-				fprintf(stderr,
-					"Slave '%s': Error: set hw address "
-					"failed\n",
-					slave_ifname);
-				goto undo_mtu;
-			}
-
-			/* For old ABI the application needs to bring the
-			 * slave back up
-			 */
-			res = set_if_up(slave_ifname, slave_flags.ifr_flags);
-			if (res) {
-				fprintf(stderr,
-					"Slave '%s': Error: bring interface "
-					"down failed\n",
-					slave_ifname);
-				goto undo_slave_mac;
-			}
-		}
-		/* The driver is using a new ABI,
-		 * so the driver takes care of setting
-		 * the slave's hwaddr and bringing
-		 * it up again
-		 */
-	} else {
-		/* No hwaddr for master yet, so
-		 * set the slave's hwaddr to it
-		 */
-		if (abi_ver < 1) {
-			/* For old ABI, the master needs to be
-			 * down before setting its hwaddr
-			 */
-			res = set_if_down(master_ifname, master_flags.ifr_flags);
-			if (res) {
-				fprintf(stderr,
-					"Master '%s': Error: bring interface "
-					"down failed\n",
-					master_ifname);
-				goto undo_mtu;
-			}
-		}
-
-		res = set_master_hwaddr(master_ifname,
-					&(slave_hwaddr.ifr_hwaddr));
-		if (res) {
-			fprintf(stderr,
-				"Master '%s': Error: set hw address "
-				"failed\n",
-				master_ifname);
-			goto undo_mtu;
-		}
-
-		if (abi_ver < 1) {
-			/* For old ABI, bring the master
-			 * back up
-			 */
-			res = set_if_up(master_ifname, master_flags.ifr_flags);
-			if (res) {
-				fprintf(stderr,
-					"Master '%s': Error: bring interface "
-					"up failed\n",
-					master_ifname);
-				goto undo_master_mac;
-			}
-		}
-
-		hwaddr_set = 1;
-	}
-
-	/* Do the real thing */
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ);
-	if ((ioctl(skfd, SIOCBONDENSLAVE, &ifr) < 0) &&
-	    (ioctl(skfd, BOND_ENSLAVE_OLD, &ifr) < 0)) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCBONDENSLAVE failed: %s\n",
-			master_ifname, strerror(saved_errno));
-		res = 1;
-	}
-
-	if (res) {
-		goto undo_master_mac;
-	}
-
-	return 0;
-
-/* rollback (best effort) */
-undo_master_mac:
-	set_master_hwaddr(master_ifname, &(master_hwaddr.ifr_hwaddr));
-	hwaddr_set = 0;
-	goto undo_mtu;
-undo_slave_mac:
-	set_slave_hwaddr(slave_ifname, &(slave_hwaddr.ifr_hwaddr));
-undo_mtu:
-	set_slave_mtu(slave_ifname, slave_mtu.ifr_mtu);
-	return res;
-}
-
-static int release(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	if (!(slave_flags.ifr_flags & IFF_SLAVE)) {
-		fprintf(stderr,
-			"Illegal operation: The specified slave interface "
-			"'%s' is not a slave\n",
-			slave_ifname);
-		return 1;
-	}
-
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ);
-	if ((ioctl(skfd, SIOCBONDRELEASE, &ifr) < 0) &&
-	    (ioctl(skfd, BOND_RELEASE_OLD, &ifr) < 0)) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCBONDRELEASE failed: %s\n",
-			master_ifname, strerror(saved_errno));
-		return 1;
-	} else if (abi_ver < 1) {
-		/* The driver is using an old ABI, so we'll set the interface
-		 * down to avoid any conflicts due to same MAC/IP
-		 */
-		res = set_if_down(slave_ifname, slave_flags.ifr_flags);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: bring interface "
-				"down failed\n",
-				slave_ifname);
-		}
-	}
-
-	/* set to default mtu */
-	set_slave_mtu(slave_ifname, 1500);
-
-	return res;
-}
-
-static int get_if_settings(char *ifname, struct dev_ifr ifra[])
-{
-	int i;
-	int res = 0;
-
-	for (i = 0; ifra[i].req_ifr; i++) {
-		strncpy(ifra[i].req_ifr->ifr_name, ifname, IFNAMSIZ);
-		res = ioctl(skfd, ifra[i].req_type, ifra[i].req_ifr);
-		if (res < 0) {
-			saved_errno = errno;
-			v_print("Interface '%s': Error: %s failed: %s\n",
-				ifname, ifra[i].req_name,
-				strerror(saved_errno));
-
-			return saved_errno;
-		}
-	}
-
-	return 0;
-}
-
-static int get_slave_flags(char *slave_ifname)
-{
-	int res = 0;
-
-	strncpy(slave_flags.ifr_name, slave_ifname, IFNAMSIZ);
-	res = ioctl(skfd, SIOCGIFFLAGS, &slave_flags);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Slave '%s': Error: SIOCGIFFLAGS failed: %s\n",
-			slave_ifname, strerror(saved_errno));
-	} else {
-		v_print("Slave %s: flags %04X.\n",
-			slave_ifname, slave_flags.ifr_flags);
-	}
-
-	return res;
-}
-
-static int set_master_hwaddr(char *master_ifname, struct sockaddr *hwaddr)
-{
-	unsigned char *addr = (unsigned char *)hwaddr->sa_data;
-	struct ifreq ifr;
-	int res = 0;
-
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	memcpy(&(ifr.ifr_hwaddr), hwaddr, sizeof(struct sockaddr));
-	res = ioctl(skfd, SIOCSIFHWADDR, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCSIFHWADDR failed: %s\n",
-			master_ifname, strerror(saved_errno));
-		return res;
-	} else {
-		v_print("Master '%s': hardware address set to "
-			"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n",
-			master_ifname, addr[0], addr[1], addr[2],
-			addr[3], addr[4], addr[5]);
-	}
-
-	return res;
-}
-
-static int set_slave_hwaddr(char *slave_ifname, struct sockaddr *hwaddr)
-{
-	unsigned char *addr = (unsigned char *)hwaddr->sa_data;
-	struct ifreq ifr;
-	int res = 0;
-
-	strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ);
-	memcpy(&(ifr.ifr_hwaddr), hwaddr, sizeof(struct sockaddr));
-	res = ioctl(skfd, SIOCSIFHWADDR, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-
-		v_print("Slave '%s': Error: SIOCSIFHWADDR failed: %s\n",
-			slave_ifname, strerror(saved_errno));
-
-		if (saved_errno == EBUSY) {
-			v_print("  The device is busy: it must be idle "
-				"before running this command.\n");
-		} else if (saved_errno == EOPNOTSUPP) {
-			v_print("  The device does not support setting "
-				"the MAC address.\n"
-				"  Your kernel likely does not support slave "
-				"devices.\n");
-		} else if (saved_errno == EINVAL) {
-			v_print("  The device's address type does not match "
-				"the master's address type.\n");
-		}
-		return res;
-	} else {
-		v_print("Slave '%s': hardware address set to "
-			"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n",
-			slave_ifname, addr[0], addr[1], addr[2],
-			addr[3], addr[4], addr[5]);
-	}
-
-	return res;
-}
-
-static int set_slave_mtu(char *slave_ifname, int mtu)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	ifr.ifr_mtu = mtu;
-	strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ);
-
-	res = ioctl(skfd, SIOCSIFMTU, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Slave '%s': Error: SIOCSIFMTU failed: %s\n",
-			slave_ifname, strerror(saved_errno));
-	} else {
-		v_print("Slave '%s': MTU set to %d.\n", slave_ifname, mtu);
-	}
-
-	return res;
-}
-
-static int set_if_flags(char *ifname, short flags)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	ifr.ifr_flags = flags;
-	strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
-
-	res = ioctl(skfd, SIOCSIFFLAGS, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Interface '%s': Error: SIOCSIFFLAGS failed: %s\n",
-			ifname, strerror(saved_errno));
-	} else {
-		v_print("Interface '%s': flags set to %04X.\n", ifname, flags);
-	}
-
-	return res;
-}
-
-static int set_if_up(char *ifname, short flags)
-{
-	return set_if_flags(ifname, flags | IFF_UP);
-}
-
-static int set_if_down(char *ifname, short flags)
-{
-	return set_if_flags(ifname, flags & ~IFF_UP);
-}
-
-static int clear_if_addr(char *ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
-	ifr.ifr_addr.sa_family = AF_INET;
-	memset(ifr.ifr_addr.sa_data, 0, sizeof(ifr.ifr_addr.sa_data));
-
-	res = ioctl(skfd, SIOCSIFADDR, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Interface '%s': Error: SIOCSIFADDR failed: %s\n",
-			ifname, strerror(saved_errno));
-	} else {
-		v_print("Interface '%s': address cleared\n", ifname);
-	}
-
-	return res;
-}
-
-static int set_if_addr(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res;
-	unsigned char *ipaddr;
-	int i;
-	struct {
-		char *req_name;
-		char *desc;
-		int g_ioctl;
-		int s_ioctl;
-	} ifra[] = {
-		{"IFADDR", "addr", SIOCGIFADDR, SIOCSIFADDR},
-		{"DSTADDR", "destination addr", SIOCGIFDSTADDR, SIOCSIFDSTADDR},
-		{"BRDADDR", "broadcast addr", SIOCGIFBRDADDR, SIOCSIFBRDADDR},
-		{"NETMASK", "netmask", SIOCGIFNETMASK, SIOCSIFNETMASK},
-		{NULL, NULL, 0, 0},
-	};
-
-	for (i = 0; ifra[i].req_name; i++) {
-		strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-		res = ioctl(skfd, ifra[i].g_ioctl, &ifr);
-		if (res < 0) {
-			int saved_errno = errno;
-
-			v_print("Interface '%s': Error: SIOCG%s failed: %s\n",
-				master_ifname, ifra[i].req_name,
-				strerror(saved_errno));
-
-			ifr.ifr_addr.sa_family = AF_INET;
-			memset(ifr.ifr_addr.sa_data, 0,
-			       sizeof(ifr.ifr_addr.sa_data));
-		}
-
-		strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ);
-		res = ioctl(skfd, ifra[i].s_ioctl, &ifr);
-		if (res < 0) {
-			int saved_errno = errno;
-
-			v_print("Interface '%s': Error: SIOCS%s failed: %s\n",
-				slave_ifname, ifra[i].req_name,
-				strerror(saved_errno));
-
-		}
-
-		ipaddr = (unsigned char *)ifr.ifr_addr.sa_data;
-		v_print("Interface '%s': set IP %s to %d.%d.%d.%d\n",
-			slave_ifname, ifra[i].desc,
-			ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]);
-	}
-
-	return 0;
-}
-
-/*
- * Local variables:
- *  version-control: t
- *  kept-new-versions: 5
- *  c-indent-level: 4
- *  c-basic-offset: 4
- *  tab-width: 4
- *  compile-command: "gcc -Wall -Wstrict-prototypes -O -I/usr/src/linux/include ifenslave.c -o ifenslave"
- * End:
- */
-

Documentation/networking/ip-sysctl.txt

@@ -685,6 +685,15 @@ ip_dynaddr - BOOLEAN
 	occurs.
 	Default: 0
 
+ip_early_demux - BOOLEAN
+	Optimize input packet processing down to one demux for
+	certain kinds of local sockets.  Currently we only do this
+	for established TCP sockets.
+
+	It may add an additional cost for pure routing workloads that
+	reduces overall throughput, in such case you should disable it.
+	Default: 1
+
 icmp_echo_ignore_all - BOOLEAN
 	If set non-zero, then the kernel will ignore all ICMP ECHO
 	requests sent to it.
@@ -729,7 +738,7 @@ icmp_ignore_bogus_error_responses - BOOLEAN
 	frames.  Such violations are normally logged via a kernel warning.
 	If this is set to TRUE, the kernel will not give such warnings, which
 	will avoid log file clutter.
-	Default: FALSE
+	Default: 1
 
 icmp_errors_use_inbound_ifaddr - BOOLEAN
 

Documentation/networking/ipvs-sysctl.txt

@@ -181,6 +181,19 @@ snat_reroute - BOOLEAN
 	always be the same as the original route so it is an optimisation
 	to disable snat_reroute and avoid the recalculation.
 
+sync_persist_mode - INTEGER
+	default 0
+
+	Controls the synchronisation of connections when using persistence
+
+	0: All types of connections are synchronised
+	1: Attempt to reduce the synchronisation traffic depending on
+	the connection type. For persistent services avoid synchronisation
+	for normal connections, do it only for persistence templates.
+	In such case, for TCP and SCTP it may need enabling sloppy_tcp and
+	sloppy_sctp flags on backup servers. For non-persistent services
+	such optimization is not applied, mode 0 is assumed.
+
 sync_version - INTEGER
 	default 1
 

Documentation/networking/netlink_mmap.txt

@@ -114,7 +114,7 @@ Some parameters are constrained, specifically:
 - nm_frame_nr must equal the actual number of frames as specified above.
 
 When the kernel can't allocate physically continuous memory for a ring block,
-it will fall back to use physically discontinous memory. This might affect
+it will fall back to use physically discontinuous memory. This might affect
 performance negatively, in order to avoid this the nm_frame_size parameter
 should be chosen to be as small as possible for the required frame size and
 the number of blocks should be increased instead.
@@ -274,9 +274,9 @@ This example assumes some ring parameters of the ring setup are available.
 			/* Get next frame header */
 			hdr = rx_ring + frame_offset;
 
-			if (hdr->nm_status == NL_MMAP_STATUS_VALID)
+			if (hdr->nm_status == NL_MMAP_STATUS_VALID) {
 				/* Regular memory mapped frame */
-				nlh = (void *hdr) + NL_MMAP_HDRLEN;
+				nlh = (void *)hdr + NL_MMAP_HDRLEN;
 				len = hdr->nm_len;
 
 				/* Release empty message immediately. May happen

Documentation/networking/packet_mmap.txt

@@ -704,6 +704,12 @@ So it seems to be a good candidate to be used with packet fanout.
 Minimal example code by Daniel Borkmann based on Chetan Loke's lolpcap (compile
 it with gcc -Wall -O2 blob.c, and try things like "./a.out eth0", etc.):
 
+/* Written from scratch, but kernel-to-user space API usage
+ * dissected from lolpcap:
+ *  Copyright 2011, Chetan Loke <loke.chetan@gmail.com>
+ *  License: GPL, version 2.0
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -722,27 +728,6 @@ it with gcc -Wall -O2 blob.c, and try things like "./a.out eth0", etc.):
 #include <linux/if_ether.h>
 #include <linux/ip.h>
 
-#define BLOCK_SIZE		(1 << 22)
-#define FRAME_SIZE		2048
-
-#define NUM_BLOCKS		64
-#define NUM_FRAMES		((BLOCK_SIZE * NUM_BLOCKS) / FRAME_SIZE)
-
-#define BLOCK_RETIRE_TOV_IN_MS	64
-#define BLOCK_PRIV_AREA_SZ	13
-
-#define ALIGN_8(x)		(((x) + 8 - 1) & ~(8 - 1))
-
-#define BLOCK_STATUS(x)		((x)->h1.block_status)
-#define BLOCK_NUM_PKTS(x)	((x)->h1.num_pkts)
-#define BLOCK_O2FP(x)		((x)->h1.offset_to_first_pkt)
-#define BLOCK_LEN(x)		((x)->h1.blk_len)
-#define BLOCK_SNUM(x)		((x)->h1.seq_num)
-#define BLOCK_O2PRIV(x)		((x)->offset_to_priv)
-#define BLOCK_PRIV(x)		((void *) ((uint8_t *) (x) + BLOCK_O2PRIV(x)))
-#define BLOCK_HDR_LEN		(ALIGN_8(sizeof(struct block_desc)))
-#define BLOCK_PLUS_PRIV(sz_pri)	(BLOCK_HDR_LEN + ALIGN_8((sz_pri)))
-
 #ifndef likely
 # define likely(x)		__builtin_expect(!!(x), 1)
 #endif
@@ -765,7 +750,7 @@ struct ring {
 static unsigned long packets_total = 0, bytes_total = 0;
 static sig_atomic_t sigint = 0;
 
-void sighandler(int num)
+static void sighandler(int num)
 {
 	sigint = 1;
 }
@@ -774,6 +759,8 @@ static int setup_socket(struct ring *ring, char *netdev)
 {
 	int err, i, fd, v = TPACKET_V3;
 	struct sockaddr_ll ll;
+	unsigned int blocksiz = 1 << 22, framesiz = 1 << 11;
+	unsigned int blocknum = 64;
 
 	fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
 	if (fd < 0) {
@@ -788,13 +775,12 @@ static int setup_socket(struct ring *ring, char *netdev)
 	}
 
 	memset(&ring->req, 0, sizeof(ring->req));
-	ring->req.tp_block_size = BLOCK_SIZE;
-	ring->req.tp_frame_size = FRAME_SIZE;
-	ring->req.tp_block_nr = NUM_BLOCKS;
-	ring->req.tp_frame_nr = NUM_FRAMES;
-	ring->req.tp_retire_blk_tov = BLOCK_RETIRE_TOV_IN_MS;
-	ring->req.tp_sizeof_priv = BLOCK_PRIV_AREA_SZ;
-	ring->req.tp_feature_req_word |= TP_FT_REQ_FILL_RXHASH;
+	ring->req.tp_block_size = blocksiz;
+	ring->req.tp_frame_size = framesiz;
+	ring->req.tp_block_nr = blocknum;
+	ring->req.tp_frame_nr = (blocksiz * blocknum) / framesiz;
+	ring->req.tp_retire_blk_tov = 60;
+	ring->req.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
 
 	err = setsockopt(fd, SOL_PACKET, PACKET_RX_RING, &ring->req,
 			 sizeof(ring->req));
@@ -804,8 +790,7 @@ static int setup_socket(struct ring *ring, char *netdev)
 	}
 
 	ring->map = mmap(NULL, ring->req.tp_block_size * ring->req.tp_block_nr,
-			 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_LOCKED,
-			 fd, 0);
+			 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_LOCKED, fd, 0);
 	if (ring->map == MAP_FAILED) {
 		perror("mmap");
 		exit(1);
@@ -835,58 +820,6 @@ static int setup_socket(struct ring *ring, char *netdev)
 	return fd;
 }
 
-#ifdef __checked
-static uint64_t prev_block_seq_num = 0;
-
-void assert_block_seq_num(struct block_desc *pbd)
-{
-	if (unlikely(prev_block_seq_num + 1 != BLOCK_SNUM(pbd))) {
-		printf("prev_block_seq_num:%"PRIu64", expected seq:%"PRIu64" != "
-		       "actual seq:%"PRIu64"\n", prev_block_seq_num,
-		       prev_block_seq_num + 1, (uint64_t) BLOCK_SNUM(pbd));
-		exit(1);
-	}
-
-	prev_block_seq_num = BLOCK_SNUM(pbd);
-}
-
-static void assert_block_len(struct block_desc *pbd, uint32_t bytes, int block_num)
-{
-	if (BLOCK_NUM_PKTS(pbd)) {
-		if (unlikely(bytes != BLOCK_LEN(pbd))) {
-			printf("block:%u with %upackets, expected len:%u != actual len:%u\n",
-			       block_num, BLOCK_NUM_PKTS(pbd), bytes, BLOCK_LEN(pbd));
-			exit(1);
-		}
-	} else {
-		if (unlikely(BLOCK_LEN(pbd) != BLOCK_PLUS_PRIV(BLOCK_PRIV_AREA_SZ))) {
-			printf("block:%u, expected len:%lu != actual len:%u\n",
-			       block_num, BLOCK_HDR_LEN, BLOCK_LEN(pbd));
-			exit(1);
-		}
-	}
-}
-
-static void assert_block_header(struct block_desc *pbd, const int block_num)
-{
-	uint32_t block_status = BLOCK_STATUS(pbd);
-
-	if (unlikely((block_status & TP_STATUS_USER) == 0)) {
-		printf("block:%u, not in TP_STATUS_USER\n", block_num);
-		exit(1);
-	}
-
-	assert_block_seq_num(pbd);
-}
-#else
-static inline void assert_block_header(struct block_desc *pbd, const int block_num)
-{
-}
-static void assert_block_len(struct block_desc *pbd, uint32_t bytes, int block_num)
-{
-}
-#endif
-
 static void display(struct tpacket3_hdr *ppd)
 {
 	struct ethhdr *eth = (struct ethhdr *) ((uint8_t *) ppd + ppd->tp_mac);
@@ -916,37 +849,27 @@ static void display(struct tpacket3_hdr *ppd)
 
 static void walk_block(struct block_desc *pbd, const int block_num)
 {
-	int num_pkts = BLOCK_NUM_PKTS(pbd), i;
+	int num_pkts = pbd->h1.num_pkts, i;
 	unsigned long bytes = 0;
-	unsigned long bytes_with_padding = BLOCK_PLUS_PRIV(BLOCK_PRIV_AREA_SZ);
 	struct tpacket3_hdr *ppd;
 
-	assert_block_header(pbd, block_num);
-
-	ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd + BLOCK_O2FP(pbd));
+	ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd +
+				       pbd->h1.offset_to_first_pkt);
 	for (i = 0; i < num_pkts; ++i) {
 		bytes += ppd->tp_snaplen;
-		if (ppd->tp_next_offset)
-			bytes_with_padding += ppd->tp_next_offset;
-		else
-			bytes_with_padding += ALIGN_8(ppd->tp_snaplen + ppd->tp_mac);
-
 		display(ppd);
 
-		ppd = (struct tpacket3_hdr *) ((uint8_t *) ppd + ppd->tp_next_offset);
-		__sync_synchronize();
+		ppd = (struct tpacket3_hdr *) ((uint8_t *) ppd +
+					       ppd->tp_next_offset);
 	}
 
-	assert_block_len(pbd, bytes_with_padding, block_num);
-
 	packets_total += num_pkts;
 	bytes_total += bytes;
 }
 
-void flush_block(struct block_desc *pbd)
+static void flush_block(struct block_desc *pbd)
 {
-	BLOCK_STATUS(pbd) = TP_STATUS_KERNEL;
-	__sync_synchronize();
+	pbd->h1.block_status = TP_STATUS_KERNEL;
 }
 
 static void teardown_socket(struct ring *ring, int fd)
@@ -962,7 +885,7 @@ int main(int argc, char **argp)
 	socklen_t len;
 	struct ring ring;
 	struct pollfd pfd;
-	unsigned int block_num = 0;
+	unsigned int block_num = 0, blocks = 64;
 	struct block_desc *pbd;
 	struct tpacket_stats_v3 stats;
 
@@ -984,15 +907,15 @@ int main(int argc, char **argp)
 
 	while (likely(!sigint)) {
 		pbd = (struct block_desc *) ring.rd[block_num].iov_base;
-retry_block:
-		if ((BLOCK_STATUS(pbd) & TP_STATUS_USER) == 0) {
+
+		if ((pbd->h1.block_status & TP_STATUS_USER) == 0) {
 			poll(&pfd, 1, -1);
-			goto retry_block;
+			continue;
 		}
 
 		walk_block(pbd, block_num);
 		flush_block(pbd);
-		block_num = (block_num + 1) % NUM_BLOCKS;
+		block_num = (block_num + 1) % blocks;
 	}
 
 	len = sizeof(stats);

Documentation/networking/scaling.txt

@@ -163,6 +163,64 @@ and unnecessary. If there are fewer hardware queues than CPUs, then
 RPS might be beneficial if the rps_cpus for each queue are the ones that
 share the same memory domain as the interrupting CPU for that queue.
 
+==== RPS Flow Limit
+
+RPS scales kernel receive processing across CPUs without introducing
+reordering. The trade-off to sending all packets from the same flow
+to the same CPU is CPU load imbalance if flows vary in packet rate.
+In the extreme case a single flow dominates traffic. Especially on
+common server workloads with many concurrent connections, such
+behavior indicates a problem such as a misconfiguration or spoofed
+source Denial of Service attack.
+
+Flow Limit is an optional RPS feature that prioritizes small flows
+during CPU contention by dropping packets from large flows slightly
+ahead of those from small flows. It is active only when an RPS or RFS
+destination CPU approaches saturation.  Once a CPU's input packet
+queue exceeds half the maximum queue length (as set by sysctl
+net.core.netdev_max_backlog), the kernel starts a per-flow packet
+count over the last 256 packets. If a flow exceeds a set ratio (by
+default, half) of these packets when a new packet arrives, then the
+new packet is dropped. Packets from other flows are still only
+dropped once the input packet queue reaches netdev_max_backlog.
+No packets are dropped when the input packet queue length is below
+the threshold, so flow limit does not sever connections outright:
+even large flows maintain connectivity.
+
+== Interface
+
+Flow limit is compiled in by default (CONFIG_NET_FLOW_LIMIT), but not
+turned on. It is implemented for each CPU independently (to avoid lock
+and cache contention) and toggled per CPU by setting the relevant bit
+in sysctl net.core.flow_limit_cpu_bitmap. It exposes the same CPU
+bitmap interface as rps_cpus (see above) when called from procfs:
+
+ /proc/sys/net/core/flow_limit_cpu_bitmap
+
+Per-flow rate is calculated by hashing each packet into a hashtable
+bucket and incrementing a per-bucket counter. The hash function is
+the same that selects a CPU in RPS, but as the number of buckets can
+be much larger than the number of CPUs, flow limit has finer-grained
+identification of large flows and fewer false positives. The default
+table has 4096 buckets. This value can be modified through sysctl
+
+ net.core.flow_limit_table_len
+
+The value is only consulted when a new table is allocated. Modifying
+it does not update active tables.
+
+== Suggested Configuration
+
+Flow limit is useful on systems with many concurrent connections,
+where a single connection taking up 50% of a CPU indicates a problem.
+In such environments, enable the feature on all CPUs that handle
+network rx interrupts (as set in /proc/irq/N/smp_affinity).
+
+The feature depends on the input packet queue length to exceed
+the flow limit threshold (50%) + the flow history length (256).
+Setting net.core.netdev_max_backlog to either 1000 or 10000
+performed well in experiments.
+
 
 RFS: Receive Flow Steering
 ==========================

Documentation/networking/vortex.txt

@@ -359,7 +359,7 @@ steps you should take:
 - OK, it's a driver problem.
 
    You need to generate a report.  Typically this is an email to the
-   maintainer and/or linux-net@vger.kernel.org.  The maintainer's
+   maintainer and/or netdev@vger.kernel.org.  The maintainer's
    email address will be in the driver source or in the MAINTAINERS file.
 
 - The contents of your report will vary a lot depending upon the

Documentation/parisc/registers

@@ -77,6 +77,14 @@ PSW default E value		0
 Shadow Registers		used by interruption handler code
 TOC enable bit			1
 
+=========================================================================
+
+The PA-RISC architecture defines 7 registers as "shadow registers".
+Those are used in RETURN FROM INTERRUPTION AND RESTORE instruction to reduce
+the state save and restore time by eliminating the need for general register
+(GR) saves and restores in interruption handlers.
+Shadow registers are the GRs 1, 8, 9, 16, 17, 24, and 25.
+
 =========================================================================
 Register usage notes, originally from John Marvin, with some additional
 notes from Randolph Chung.

Documentation/printk-formats.txt

@@ -121,6 +121,38 @@ IPv6 addresses:
 	print a compressed IPv6 address as described by
 	http://tools.ietf.org/html/rfc5952
 
+IPv4/IPv6 addresses (generic, with port, flowinfo, scope):
+
+	%pIS	1.2.3.4		or 0001:0002:0003:0004:0005:0006:0007:0008
+	%piS	001.002.003.004	or 00010002000300040005000600070008
+	%pISc	1.2.3.4		or 1:2:3:4:5:6:7:8
+	%pISpc	1.2.3.4:12345	or [1:2:3:4:5:6:7:8]:12345
+	%p[Ii]S[pfschnbl]
+
+	For printing an IP address without the need to distinguish whether it's
+	of type AF_INET or AF_INET6, a pointer to a valid 'struct sockaddr',
+	specified through 'IS' or 'iS', can be passed to this format specifier.
+
+	The additional 'p', 'f', and 's' specifiers are used to specify port
+	(IPv4, IPv6), flowinfo (IPv6) and scope (IPv6). Ports have a ':' prefix,
+	flowinfo a '/' and scope a '%', each followed by the actual value.
+
+	In case of an IPv6 address the compressed IPv6 address as described by
+	http://tools.ietf.org/html/rfc5952 is being used if the additional
+	specifier 'c' is given. The IPv6 address is surrounded by '[', ']' in
+	case of additional specifiers 'p', 'f' or 's' as suggested by
+	https://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-07
+
+	In case of IPv4 addresses, the additional 'h', 'n', 'b', and 'l'
+	specifiers can be used as well and are ignored in case of an IPv6
+	address.
+
+	Further examples:
+
+	%pISfc		1.2.3.4		or [1:2:3:4:5:6:7:8]/123456789
+	%pISsc		1.2.3.4		or [1:2:3:4:5:6:7:8]%1234567890
+	%pISpfc		1.2.3.4:12345	or [1:2:3:4:5:6:7:8]:12345/123456789
+
 UUID/GUID addresses:
 
 	%pUb	00010203-0405-0607-0809-0a0b0c0d0e0f

Documentation/pwm.txt

@@ -45,6 +45,43 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns);
 
 To start/stop toggling the PWM output use pwm_enable()/pwm_disable().
 
+Using PWMs with the sysfs interface
+-----------------------------------
+
+If CONFIG_SYSFS is enabled in your kernel configuration a simple sysfs
+interface is provided to use the PWMs from userspace. It is exposed at
+/sys/class/pwm/. Each probed PWM controller/chip will be exported as
+pwmchipN, where N is the base of the PWM chip. Inside the directory you
+will find:
+
+npwm - The number of PWM channels this chip supports (read-only).
+
+export - Exports a PWM channel for use with sysfs (write-only).
+
+unexport - Unexports a PWM channel from sysfs (write-only).
+
+The PWM channels are numbered using a per-chip index from 0 to npwm-1.
+
+When a PWM channel is exported a pwmX directory will be created in the
+pwmchipN directory it is associated with, where X is the number of the
+channel that was exported. The following properties will then be available:
+
+period - The total period of the PWM signal (read/write).
+	Value is in nanoseconds and is the sum of the active and inactive
+	time of the PWM.
+
+duty_cycle - The active time of the PWM signal (read/write).
+	Value is in nanoseconds and must be less than the period.
+
+polarity - Changes the polarity of the PWM signal (read/write).
+	Writes to this property only work if the PWM chip supports changing
+	the polarity. The polarity can only be changed if the PWM is not
+	enabled. Value is the string "normal" or "inversed".
+
+enable - Enable/disable the PWM signal (read/write).
+	0 - disabled
+	1 - enabled
+
 Implementing a PWM driver
 -------------------------
 

Documentation/sysctl/net.txt

@@ -26,7 +26,7 @@ Table : Subdirectories in /proc/sys/net
  ipv4      IP version 4        x25        X.25 protocol
  ipx       IPX                 token-ring IBM token ring
  bridge    Bridging            decnet     DEC net
- ipv6      IP version 6
+ ipv6      IP version 6        tipc       TIPC
 ..............................................................................
 
 1. /proc/sys/net/core - Network core options
@@ -50,6 +50,30 @@ The maximum number of packets that kernel can handle on a NAPI interrupt,
 it's a Per-CPU variable.
 Default: 64
 
+busy_read
+----------------
+Low latency busy poll timeout for socket reads. (needs CONFIG_NET_LL_RX_POLL)
+Approximate time in us to busy loop waiting for packets on the device queue.
+This sets the default value of the SO_BUSY_POLL socket option.
+Can be set or overridden per socket by setting socket option SO_BUSY_POLL,
+which is the preferred method of enabling. If you need to enable the feature
+globally via sysctl, a value of 50 is recommended.
+Will increase power usage.
+Default: 0 (off)
+
+busy_poll
+----------------
+Low latency busy poll timeout for poll and select. (needs CONFIG_NET_LL_RX_POLL)
+Approximate time in us to busy loop waiting for events.
+Recommended value depends on the number of sockets you poll on.
+For several sockets 50, for several hundreds 100.
+For more than that you probably want to use epoll.
+Note that only sockets with SO_BUSY_POLL set will be busy polled,
+so you want to either selectively set SO_BUSY_POLL on those sockets or set
+sysctl.net.busy_read globally.
+Will increase power usage.
+Default: 0 (off)
+
 rmem_default
 ------------
 
@@ -93,8 +117,7 @@ netdev_budget
 
 Maximum number of packets taken from all interfaces in one polling cycle (NAPI
 poll). In one polling cycle interfaces which are registered to polling are
-probed in a round-robin manner. The limit of packets in one such probe can be
-set per-device via sysfs class/net/<device>/weight .
+probed in a round-robin manner.
 
 netdev_max_backlog
 ------------------
@@ -201,3 +224,18 @@ IPX.
 The /proc/net/ipx_route  table  holds  a list of IPX routes. For each route it
 gives the  destination  network, the router node (or Directly) and the network
 address of the router (or Connected) for internal networks.
+
+6. TIPC
+-------------------------------------------------------
+
+The TIPC protocol now has a tunable for the receive memory, similar to the
+tcp_rmem - i.e. a vector of 3 INTEGERs: (min, default, max)
+
+    # cat /proc/sys/net/tipc/tipc_rmem
+    4252725 34021800        68043600
+    #
+
+The max value is set to CONN_OVERLOAD_LIMIT, and the default and min values
+are scaled (shifted) versions of that same value.  Note that the min value
+is not at this point in time used in any meaningful way, but the triplet is
+preserved in order to be consistent with things like tcp_rmem.

Documentation/thermal/x86_pkg_temperature_thermal

@@ -0,0 +1,47 @@
+Kernel driver: x86_pkg_temp_thermal
+===================
+
+Supported chips:
+* x86: with package level thermal management
+(Verify using: CPUID.06H:EAX[bit 6] =1)
+
+Authors: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+
+Reference
+---
+Intel® 64 and IA-32 Architectures Software Developer’s Manual (Jan, 2013):
+Chapter 14.6: PACKAGE LEVEL THERMAL MANAGEMENT
+
+Description
+---------
+
+This driver register CPU digital temperature package level sensor as a thermal
+zone with maximum two user mode configurable trip points. Number of trip points
+depends on the capability of the package. Once the trip point is violated,
+user mode can receive notification via thermal notification mechanism and can
+take any action to control temperature.
+
+
+Threshold management
+--------------------
+Each package will register as a thermal zone under /sys/class/thermal.
+Example:
+/sys/class/thermal/thermal_zone1
+
+This contains two trip points:
+- trip_point_0_temp
+- trip_point_1_temp
+
+User can set any temperature between 0 to TJ-Max temperature. Temperature units
+are in milli-degree Celsius. Refer to "Documentation/thermal/sysfs-api.txt" for
+thermal sys-fs details.
+
+Any value other than 0 in these trip points, can trigger thermal notifications.
+Setting 0, stops sending thermal notifications.
+
+Thermal notifications: To get kobject-uevent notifications, set the thermal zone
+policy to "user_space". For example: echo -n "user_space" > policy
+
+
+
+

Documentation/trace/events.txt

@@ -183,13 +183,22 @@ The relational-operators depend on the type of the field being tested:
 
 The operators available for numeric fields are:
 
-==, !=, <, <=, >, >=
+==, !=, <, <=, >, >=, &
 
 And for string fields they are:
 
-==, !=
+==, !=, ~
 
-Currently, only exact string matches are supported.
+The glob (~) only accepts a wild card character (*) at the start and or
+end of the string. For example:
+
+  prev_comm ~ "*sh"
+  prev_comm ~ "sh*"
+  prev_comm ~ "*sh*"
+
+But does not allow for it to be within the string:
+
+  prev_comm ~ "ba*sh"   <-- is invalid
 
 5.2 Setting filters
 -------------------

Documentation/trace/ftrace.txt

@@ -2430,6 +2430,19 @@ The following commands are supported:
    echo '!schedule:disable_event:sched:sched_switch' > \
    	 set_ftrace_filter
 
+- dump
+  When the function is hit, it will dump the contents of the ftrace
+  ring buffer to the console. This is useful if you need to debug
+  something, and want to dump the trace when a certain function
+  is hit. Perhaps its a function that is called before a tripple
+  fault happens and does not allow you to get a regular dump.
+
+- cpudump
+  When the function is hit, it will dump the contents of the ftrace
+  ring buffer for the current CPU to the console. Unlike the "dump"
+  command, it only prints out the contents of the ring buffer for the
+  CPU that executed the function that triggered the dump.
+
 trace_pipe
 ----------
 

Documentation/vfio.txt

@@ -172,12 +172,12 @@ group and can access them as follows:
 	struct vfio_device_info device_info = { .argsz = sizeof(device_info) };
 
 	/* Create a new container */
-	container = open("/dev/vfio/vfio, O_RDWR);
+	container = open("/dev/vfio/vfio", O_RDWR);
 
 	if (ioctl(container, VFIO_GET_API_VERSION) != VFIO_API_VERSION)
 		/* Unknown API version */
 
-	if (!ioctl(container, VFIO_CHECK_EXTENSION, VFIO_X86_IOMMU))
+	if (!ioctl(container, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU))
 		/* Doesn't support the IOMMU driver we want. */
 
 	/* Open the group */
@@ -193,7 +193,7 @@ group and can access them as follows:
 	ioctl(group, VFIO_GROUP_SET_CONTAINER, &container);
 
 	/* Enable the IOMMU model we want */
-	ioctl(container, VFIO_SET_IOMMU, VFIO_X86_IOMMU)
+	ioctl(container, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU)
 
 	/* Get addition IOMMU info */
 	ioctl(container, VFIO_IOMMU_GET_INFO, &iommu_info);

Documentation/video4linux/CARDLIST.bttv

@@ -160,3 +160,6 @@
 159 -> ProVideo PV183                                      [1830:1540,1831:1540,1832:1540,1833:1540,1834:1540,1835:1540,1836:1540,1837:1540]
 160 -> Tongwei Video Technology TD-3116                    [f200:3116]
 161 -> Aposonic W-DVR                                      [0279:0228]
+162 -> Adlink MPG24
+163 -> Bt848 Capture 14MHz
+164 -> CyberVision CV06 (SV)

Documentation/video4linux/CARDLIST.saa7134

@@ -190,3 +190,4 @@
 189 -> Kworld PC150-U                           [17de:a134]
 190 -> Asus My Cinema PS3-100                   [1043:48cd]
 191 -> Hawell HW-9004V1
+192 -> AverMedia AverTV Satellite Hybrid+FM A706 [1461:2055]

Documentation/video4linux/CARDLIST.tuner

@@ -86,6 +86,6 @@ tuner=85 - Philips FQ1236 MK5
 tuner=86 - Tena TNF5337 MFD
 tuner=87 - Xceive 4000 tuner
 tuner=88 - Xceive 5000C tuner
-tuner=89 - Sony PAL+SECAM (BTF-PG472Z)
-tuner=90 - Sony NTSC-M-JP (BTF-PK467Z)
-tuner=91 - Sony NTSC-M (BTF-PB463Z)
+tuner=89 - Sony BTF-PG472Z PAL/SECAM
+tuner=90 - Sony BTF-PK467Z NTSC-M-JP
+tuner=91 - Sony BTF-PB463Z NTSC-M

Documentation/video4linux/fimc.txt

@@ -1,6 +1,6 @@
 Samsung S5P/EXYNOS4 FIMC driver
 
-Copyright (C) 2012 Samsung Electronics Co., Ltd.
+Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
 ---------------------------------------------------------------------------
 
 The FIMC (Fully Interactive Mobile Camera) device available in Samsung
@@ -10,7 +10,7 @@ data from LCD controller (FIMD) through the SoC internal writeback data
 path.  There are multiple FIMC instances in the SoCs (up to 4), having
 slightly different capabilities, like pixel alignment constraints, rotator
 availability, LCD writeback support, etc. The driver is located at
-drivers/media/platform/s5p-fimc directory.
+drivers/media/platform/exynos4-is directory.
 
 1. Supported SoCs
 =================
@@ -36,21 +36,21 @@ Not currently supported:
 =====================
 
 - media device driver
-  drivers/media/platform/s5p-fimc/fimc-mdevice.[ch]
+  drivers/media/platform/exynos4-is/media-dev.[ch]
 
  - camera capture video device driver
-  drivers/media/platform/s5p-fimc/fimc-capture.c
+  drivers/media/platform/exynos4-is/fimc-capture.c
 
  - MIPI-CSI2 receiver subdev
-  drivers/media/platform/s5p-fimc/mipi-csis.[ch]
+  drivers/media/platform/exynos4-is/mipi-csis.[ch]
 
  - video post-processor (mem-to-mem)
-  drivers/media/platform/s5p-fimc/fimc-core.c
+  drivers/media/platform/exynos4-is/fimc-core.c
 
  - common files
-  drivers/media/platform/s5p-fimc/fimc-core.h
-  drivers/media/platform/s5p-fimc/fimc-reg.h
-  drivers/media/platform/s5p-fimc/regs-fimc.h
+  drivers/media/platform/exynos4-is/fimc-core.h
+  drivers/media/platform/exynos4-is/fimc-reg.h
+  drivers/media/platform/exynos4-is/regs-fimc.h
 
 4. User space interfaces
 ========================
@@ -143,7 +143,8 @@ or retrieve the information from /dev/media? with help of the media-ctl tool:
 6. Platform support
 ===================
 
-The machine code (plat-s5p and arch/arm/mach-*) must select following options
+The machine code (arch/arm/plat-samsung and arch/arm/mach-*) must select
+following options:
 
 CONFIG_S5P_DEV_FIMC0       mandatory
 CONFIG_S5P_DEV_FIMC1  \

Documentation/video4linux/v4l2-framework.txt

@@ -246,7 +246,6 @@ may be NULL if the subdev driver does not support anything from that category.
 It looks like this:
 
 struct v4l2_subdev_core_ops {
-	int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip);
 	int (*log_status)(struct v4l2_subdev *sd);
 	int (*init)(struct v4l2_subdev *sd, u32 val);
 	...
@@ -326,8 +325,27 @@ that width, height and the media bus pixel code are equal on both source and
 sink of the link. Subdev drivers are also free to use this function to
 perform the checks mentioned above in addition to their own checks.
 
-A device (bridge) driver needs to register the v4l2_subdev with the
-v4l2_device:
+There are currently two ways to register subdevices with the V4L2 core. The
+first (traditional) possibility is to have subdevices registered by bridge
+drivers. This can be done when the bridge driver has the complete information
+about subdevices connected to it and knows exactly when to register them. This
+is typically the case for internal subdevices, like video data processing units
+within SoCs or complex PCI(e) boards, camera sensors in USB cameras or connected
+to SoCs, which pass information about them to bridge drivers, usually in their
+platform data.
+
+There are however also situations where subdevices have to be registered
+asynchronously to bridge devices. An example of such a configuration is a Device
+Tree based system where information about subdevices is made available to the
+system independently from the bridge devices, e.g. when subdevices are defined
+in DT as I2C device nodes. The API used in this second case is described further
+below.
+
+Using one or the other registration method only affects the probing process, the
+run-time bridge-subdevice interaction is in both cases the same.
+
+In the synchronous case a device (bridge) driver needs to register the
+v4l2_subdev with the v4l2_device:
 
 	int err = v4l2_device_register_subdev(v4l2_dev, sd);
 
@@ -346,24 +364,24 @@ Afterwards the subdev module can be unloaded and sd->dev == NULL.
 
 You can call an ops function either directly:
 
-	err = sd->ops->core->g_chip_ident(sd, &chip);
+	err = sd->ops->core->g_std(sd, &norm);
 
 but it is better and easier to use this macro:
 
-	err = v4l2_subdev_call(sd, core, g_chip_ident, &chip);
+	err = v4l2_subdev_call(sd, core, g_std, &norm);
 
 The macro will to the right NULL pointer checks and returns -ENODEV if subdev
-is NULL, -ENOIOCTLCMD if either subdev->core or subdev->core->g_chip_ident is
-NULL, or the actual result of the subdev->ops->core->g_chip_ident ops.
+is NULL, -ENOIOCTLCMD if either subdev->core or subdev->core->g_std is
+NULL, or the actual result of the subdev->ops->core->g_std ops.
 
 It is also possible to call all or a subset of the sub-devices:
 
-	v4l2_device_call_all(v4l2_dev, 0, core, g_chip_ident, &chip);
+	v4l2_device_call_all(v4l2_dev, 0, core, g_std, &norm);
 
 Any subdev that does not support this ops is skipped and error results are
 ignored. If you want to check for errors use this:
 
-	err = v4l2_device_call_until_err(v4l2_dev, 0, core, g_chip_ident, &chip);
+	err = v4l2_device_call_until_err(v4l2_dev, 0, core, g_std, &norm);
 
 Any error except -ENOIOCTLCMD will exit the loop with that error. If no
 errors (except -ENOIOCTLCMD) occurred, then 0 is returned.
@@ -394,6 +412,30 @@ controlled through GPIO pins. This distinction is only relevant when setting
 up the device, but once the subdev is registered it is completely transparent.
 
 
+In the asynchronous case subdevice probing can be invoked independently of the
+bridge driver availability. The subdevice driver then has to verify whether all
+the requirements for a successful probing are satisfied. This can include a
+check for a master clock availability. If any of the conditions aren't satisfied
+the driver might decide to return -EPROBE_DEFER to request further reprobing
+attempts. Once all conditions are met the subdevice shall be registered using
+the v4l2_async_register_subdev() function. Unregistration is performed using
+the v4l2_async_unregister_subdev() call. Subdevices registered this way are
+stored in a global list of subdevices, ready to be picked up by bridge drivers.
+
+Bridge drivers in turn have to register a notifier object with an array of
+subdevice descriptors that the bridge device needs for its operation. This is
+performed using the v4l2_async_notifier_register() call. To unregister the
+notifier the driver has to call v4l2_async_notifier_unregister(). The former of
+the two functions takes two arguments: a pointer to struct v4l2_device and a
+pointer to struct v4l2_async_notifier. The latter contains a pointer to an array
+of pointers to subdevice descriptors of type struct v4l2_async_subdev type. The
+V4L2 core will then use these descriptors to match asynchronously registered
+subdevices to them. If a match is detected the .bound() notifier callback is
+called. After all subdevices have been located the .complete() callback is
+called. When a subdevice is removed from the system the .unbind() method is
+called. All three callbacks are optional.
+
+
 V4L2 sub-device userspace API
 -----------------------------
 
@@ -575,9 +617,13 @@ of the video device exits.
 The default video_device_release() callback just calls kfree to free the
 allocated memory.
 
+There is also a video_device_release_empty() function that does nothing
+(is empty) and can be used if the struct is embedded and there is nothing
+to do when it is released.
+
 You should also set these fields:
 
-- v4l2_dev: set to the v4l2_device parent device.
+- v4l2_dev: must be set to the v4l2_device parent device.
 
 - name: set to something descriptive and unique.
 
@@ -614,15 +660,16 @@ You should also set these fields:
   If you want to have a separate priority state per (group of) device node(s),
   then you can point it to your own struct v4l2_prio_state.
 
-- parent: you only set this if v4l2_device was registered with NULL as
+- dev_parent: you only set this if v4l2_device was registered with NULL as
   the parent device struct. This only happens in cases where one hardware
   device has multiple PCI devices that all share the same v4l2_device core.
 
   The cx88 driver is an example of this: one core v4l2_device struct, but
-  it is used by both an raw video PCI device (cx8800) and a MPEG PCI device
-  (cx8802). Since the v4l2_device cannot be associated with a particular
-  PCI device it is setup without a parent device. But when the struct
-  video_device is setup you do know which parent PCI device to use.
+  it is used by both a raw video PCI device (cx8800) and a MPEG PCI device
+  (cx8802). Since the v4l2_device cannot be associated with two PCI devices
+  at the same time it is setup without a parent device. But when the struct
+  video_device is initialized you *do* know which parent PCI device to use and
+  so you set dev_device to the correct PCI device.
 
 - flags: optional. Set to V4L2_FL_USE_FH_PRIO if you want to let the framework
   handle the VIDIOC_G/S_PRIORITY ioctls. This requires that you use struct
@@ -1061,3 +1108,29 @@ available event type is 'class base + 1'.
 
 An example on how the V4L2 events may be used can be found in the OMAP
 3 ISP driver (drivers/media/platform/omap3isp).
+
+
+V4L2 clocks
+-----------
+
+Many subdevices, like camera sensors, TV decoders and encoders, need a clock
+signal to be supplied by the system. Often this clock is supplied by the
+respective bridge device. The Linux kernel provides a Common Clock Framework for
+this purpose. However, it is not (yet) available on all architectures. Besides,
+the nature of the multi-functional (clock, data + synchronisation, I2C control)
+connection of subdevices to the system might impose special requirements on the
+clock API usage. E.g. V4L2 has to support clock provider driver unregistration
+while a subdevice driver is holding a reference to the clock. For these reasons
+a V4L2 clock helper API has been developed and is provided to bridge and
+subdevice drivers.
+
+The API consists of two parts: two functions to register and unregister a V4L2
+clock source: v4l2_clk_register() and v4l2_clk_unregister() and calls to control
+a clock object, similar to the respective generic clock API calls:
+v4l2_clk_get(), v4l2_clk_put(), v4l2_clk_enable(), v4l2_clk_disable(),
+v4l2_clk_get_rate(), and v4l2_clk_set_rate(). Clock suppliers have to provide
+clock operations that will be called when clock users invoke respective API
+methods.
+
+It is expected that once the CCF becomes available on all relevant
+architectures this API will be removed.

Documentation/vm/zswap.txt

@@ -0,0 +1,68 @@
+Overview:
+
+Zswap is a lightweight compressed cache for swap pages. It takes pages that are
+in the process of being swapped out and attempts to compress them into a
+dynamically allocated RAM-based memory pool.  zswap basically trades CPU cycles
+for potentially reduced swap I/O.  This trade-off can also result in a
+significant performance improvement if reads from the compressed cache are
+faster than reads from a swap device.
+
+NOTE: Zswap is a new feature as of v3.11 and interacts heavily with memory
+reclaim.  This interaction has not be fully explored on the large set of
+potential configurations and workloads that exist.  For this reason, zswap
+is a work in progress and should be considered experimental.
+
+Some potential benefits:
+* Desktop/laptop users with limited RAM capacities can mitigate the
+    performance impact of swapping.
+* Overcommitted guests that share a common I/O resource can
+    dramatically reduce their swap I/O pressure, avoiding heavy handed I/O
+    throttling by the hypervisor. This allows more work to get done with less
+    impact to the guest workload and guests sharing the I/O subsystem
+* Users with SSDs as swap devices can extend the life of the device by
+    drastically reducing life-shortening writes.
+
+Zswap evicts pages from compressed cache on an LRU basis to the backing swap
+device when the compressed pool reaches it size limit.  This requirement had
+been identified in prior community discussions.
+
+To enabled zswap, the "enabled" attribute must be set to 1 at boot time.  e.g.
+zswap.enabled=1
+
+Design:
+
+Zswap receives pages for compression through the Frontswap API and is able to
+evict pages from its own compressed pool on an LRU basis and write them back to
+the backing swap device in the case that the compressed pool is full.
+
+Zswap makes use of zbud for the managing the compressed memory pool.  Each
+allocation in zbud is not directly accessible by address.  Rather, a handle is
+return by the allocation routine and that handle must be mapped before being
+accessed.  The compressed memory pool grows on demand and shrinks as compressed
+pages are freed.  The pool is not preallocated.
+
+When a swap page is passed from frontswap to zswap, zswap maintains a mapping
+of the swap entry, a combination of the swap type and swap offset, to the zbud
+handle that references that compressed swap page.  This mapping is achieved
+with a red-black tree per swap type.  The swap offset is the search key for the
+tree nodes.
+
+During a page fault on a PTE that is a swap entry, frontswap calls the zswap
+load function to decompress the page into the page allocated by the page fault
+handler.
+
+Once there are no PTEs referencing a swap page stored in zswap (i.e. the count
+in the swap_map goes to 0) the swap code calls the zswap invalidate function,
+via frontswap, to free the compressed entry.
+
+Zswap seeks to be simple in its policies.  Sysfs attributes allow for one user
+controlled policies:
+* max_pool_percent - The maximum percentage of memory that the compressed
+    pool can occupy.
+
+Zswap allows the compressor to be selected at kernel boot time by setting the
+“compressor” attribute.  The default compressor is lzo.  e.g.
+zswap.compressor=deflate
+
+A debugfs interface is provided for various statistic about pool size, number
+of pages stored, and various counters for the reasons pages are rejected.

Documentation/watchdog/watchdog-parameters.txt

@@ -194,14 +194,6 @@ reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
 nowayout: Watchdog cannot be stopped once started
 	(default=kernel config parameter)
 -------------------------------------------------
-mpcore_wdt:
-mpcore_margin: MPcore timer margin in seconds.
-	(0 < mpcore_margin < 65536, default=60)
-nowayout: Watchdog cannot be stopped once started
-	(default=kernel config parameter)
-mpcore_noboot: MPcore watchdog action, set to 1 to ignore reboots,
-	0 to reboot (default=0
--------------------------------------------------
 mv64x60_wdt:
 nowayout: Watchdog cannot be stopped once started
 	(default=kernel config parameter)

Documentation/zh_CN/video4linux/v4l2-framework.txt

@@ -247,7 +247,6 @@ i2c_client 结构体，i2c_set_clientdata() 函数可用于保存一个 v4l2_sub
 这些结构体定义如下：
 
 struct v4l2_subdev_core_ops {
-	int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip);
 	int (*log_status)(struct v4l2_subdev *sd);
 	int (*init)(struct v4l2_subdev *sd, u32 val);
 	...
@@ -337,24 +336,24 @@ subdev->dev 域就指向了 v4l2_device。
 
 注册之设备后，可通过以下方式直接调用其操作函数：
 
-	err = sd->ops->core->g_chip_ident(sd, &chip);
+	err = sd->ops->core->g_std(sd, &norm);
 
 但使用如下宏会比较容易且合适：
 
-	err = v4l2_subdev_call(sd, core, g_chip_ident, &chip);
+	err = v4l2_subdev_call(sd, core, g_std, &norm);
 
 这个宏将会做 NULL 指针检查，如果 subdev 为 NULL，则返回-ENODEV；如果
-subdev->core 或 subdev->core->g_chip_ident 为 NULL，则返回 -ENOIOCTLCMD；
-否则将返回 subdev->ops->core->g_chip_ident ops 调用的实际结果。
+subdev->core 或 subdev->core->g_std 为 NULL，则返回 -ENOIOCTLCMD；
+否则将返回 subdev->ops->core->g_std ops 调用的实际结果。
 
 有时也可能同时调用所有或一系列子设备的某个操作函数：
 
-	v4l2_device_call_all(v4l2_dev, 0, core, g_chip_ident, &chip);
+	v4l2_device_call_all(v4l2_dev, 0, core, g_std, &norm);
 
 任何不支持此操作的子设备都会被跳过，并忽略错误返回值。但如果你需要
 检查出错码，则可使用如下函数：
 
-	err = v4l2_device_call_until_err(v4l2_dev, 0, core, g_chip_ident, &chip);
+	err = v4l2_device_call_until_err(v4l2_dev, 0, core, g_std, &norm);
 
 除 -ENOIOCTLCMD 外的任何错误都会跳出循环并返回错误值。如果（除 -ENOIOCTLCMD
 外）没有错误发生，则返回 0。

MAINTAINERS

@@ -752,7 +752,7 @@ S:	Maintained
 F:	arch/arm/mach-highbank/
 
 ARM/CAVIUM NETWORKS CNS3XXX MACHINE SUPPORT
-M:	Anton Vorontsov <avorontsov@mvista.com>
+M:	Anton Vorontsov <anton@enomsg.org>
 S:	Maintained
 F:	arch/arm/mach-cns3xxx/
 T:	git git://git.infradead.org/users/cbou/linux-cns3xxx.git
@@ -1165,15 +1165,6 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/s5p-g2d/
 
-ARM/SAMSUNG S5P SERIES FIMC SUPPORT
-M:	Kyungmin Park <kyungmin.park@samsung.com>
-M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
-L:	linux-arm-kernel@lists.infradead.org
-L:	linux-media@vger.kernel.org
-S:	Maintained
-F:	arch/arm/plat-samsung/include/plat/*fimc*
-F:	drivers/media/platform/s5p-fimc/
-
 ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
 M:	Kyungmin Park <kyungmin.park@samsung.com>
 M:	Kamil Debski <k.debski@samsung.com>
@@ -1333,6 +1324,12 @@ S:	Supported
 F:	arch/arm/mach-zynq/
 F:	drivers/cpuidle/cpuidle-zynq.c
 
+ARM SMMU DRIVER
+M:	Will Deacon <will.deacon@arm.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	drivers/iommu/arm-smmu.c
+
 ARM64 PORT (AARCH64 ARCHITECTURE)
 M:	Catalin Marinas <catalin.marinas@arm.com>
 M:	Will Deacon <will.deacon@arm.com>
@@ -1589,7 +1586,7 @@ F:	include/net/ax25.h
 F:	net/ax25/
 
 AZ6007 DVB DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -1874,7 +1871,7 @@ F:	Documentation/filesystems/btrfs.txt
 F:	fs/btrfs/
 
 BTTV VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -2129,9 +2126,12 @@ COCCINELLE/Semantic Patches (SmPL)
 M:	Julia Lawall <Julia.Lawall@lip6.fr>
 M:	Gilles Muller <Gilles.Muller@lip6.fr>
 M:	Nicolas Palix <nicolas.palix@imag.fr>
+M:	Michal Marek <mmarek@suse.cz>
 L:	cocci@systeme.lip6.fr (moderated for non-subscribers)
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild.git misc
 W:	http://coccinelle.lip6.fr/
 S:	Supported
+F:	Documentation/coccinelle.txt
 F:	scripts/coccinelle/
 F:	scripts/coccicheck
 
@@ -2332,6 +2332,11 @@ M:	Jaya Kumar <jayakumar.alsa@gmail.com>
 S:	Maintained
 F:	sound/pci/cs5535audio/
 
+CW1200 WLAN driver
+M:     Solomon Peachy <pizza@shaftnet.org>
+S:     Maintained
+F:     drivers/net/wireless/cw1200/
+
 CX18 VIDEO4LINUX DRIVER
 M:	Andy Walls <awalls@md.metrocast.net>
 L:	ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
@@ -2354,7 +2359,7 @@ F:	drivers/media/common/cx2341x*
 F:	include/media/cx2341x*
 
 CX88 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -2560,6 +2565,7 @@ S:	Maintained
 
 DEVICE-MAPPER  (LVM)
 M:	Alasdair Kergon <agk@redhat.com>
+M:	Mike Snitzer <snitzer@redhat.com>
 M:	dm-devel@redhat.com
 L:	dm-devel@redhat.com
 W:	http://sources.redhat.com/dm
@@ -2571,6 +2577,7 @@ F:	drivers/md/dm*
 F:	drivers/md/persistent-data/
 F:	include/linux/device-mapper.h
 F:	include/linux/dm-*.h
+F:	include/uapi/linux/dm-*.h
 
 DIOLAN U2C-12 I2C DRIVER
 M:	Guenter Roeck <linux@roeck-us.net>
@@ -2974,7 +2981,7 @@ S:	Maintained
 F:	drivers/edac/e7xxx_edac.c
 
 EDAC-GHES
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
@@ -3002,21 +3009,21 @@ S:	Maintained
 F:	drivers/edac/i5000_edac.c
 
 EDAC-I5400
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/i5400_edac.c
 
 EDAC-I7300
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/i7300_edac.c
 
 EDAC-I7CORE
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
@@ -3045,7 +3052,7 @@ S:	Maintained
 F:	drivers/edac/r82600_edac.c
 
 EDAC-SBRIDGE
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
@@ -3105,7 +3112,7 @@ S:	Maintained
 F:	drivers/net/ethernet/ibm/ehea/
 
 EM28XX VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -5301,7 +5308,7 @@ S:	Maintained
 F:	drivers/media/radio/radio-maxiradio*
 
 MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 P:	LinuxTV.org Project
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
@@ -5380,6 +5387,12 @@ F:	drivers/mtd/
 F:	include/linux/mtd/
 F:	include/uapi/mtd/
 
+MEN A21 WATCHDOG DRIVER
+M:  	Johannes Thumshirn <johannes.thumshirn@men.de>
+L:	linux-watchdog@vger.kernel.org
+S:	Supported
+F:	drivers/watchdog/mena21_wdt.c
+
 METAG ARCHITECTURE
 M:	James Hogan <james.hogan@imgtec.com>
 S:	Supported
@@ -5423,6 +5436,28 @@ W:	http://linuxtv.org
 S:	Odd Fixes
 F:	drivers/media/radio/radio-miropcm20*
 
+Mellanox MLX5 core VPI driver
+M:	Eli Cohen <eli@mellanox.com>
+L:	netdev@vger.kernel.org
+L:	linux-rdma@vger.kernel.org
+W:	http://www.mellanox.com
+Q:	http://patchwork.ozlabs.org/project/netdev/list/
+Q:	http://patchwork.kernel.org/project/linux-rdma/list/
+T:	git://openfabrics.org/~eli/connect-ib.git
+S:	Supported
+F:	drivers/net/ethernet/mellanox/mlx5/core/
+F:	include/linux/mlx5/
+
+Mellanox MLX5 IB driver
+M:      Eli Cohen <eli@mellanox.com>
+L:      linux-rdma@vger.kernel.org
+W:      http://www.mellanox.com
+Q:      http://patchwork.kernel.org/project/linux-rdma/list/
+T:      git://openfabrics.org/~eli/connect-ib.git
+S:      Supported
+F:      include/linux/mlx5/
+F:      drivers/infiniband/hw/mlx5/
+
 MODULE SUPPORT
 M:	Rusty Russell <rusty@rustcorp.com.au>
 S:	Maintained
@@ -5495,9 +5530,12 @@ F:	include/media/mt9v032.h
 
 MULTIFUNCTION DEVICES (MFD)
 M:	Samuel Ortiz <sameo@linux.intel.com>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6.git
+M:	Lee Jones <lee.jones@linaro.org>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes.git
 S:	Supported
 F:	drivers/mfd/
+F:	include/linux/mfd/
 
 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
 M:	Chris Ball <cjb@laptop.org>
@@ -6398,7 +6436,7 @@ F:	include/linux/timer*
 F:	kernel/*timer*
 
 POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
-M:	Anton Vorontsov <cbou@mail.ru>
+M:	Anton Vorontsov <anton@enomsg.org>
 M:	David Woodhouse <dwmw2@infradead.org>
 T:	git git://git.infradead.org/battery-2.6.git
 S:	Maintained
@@ -6508,7 +6546,7 @@ S:	Maintained
 F:	drivers/block/ps3vram.c
 
 PSTORE FILESYSTEM
-M:	Anton Vorontsov <cbouatmailru@gmail.com>
+M:	Anton Vorontsov <anton@enomsg.org>
 M:	Colin Cross <ccross@android.com>
 M:	Kees Cook <keescook@chromium.org>
 M:	Tony Luck <tony.luck@intel.com>
@@ -6560,8 +6598,8 @@ S:	Maintained
 F:	drivers/media/usb/pwc/*
 
 PWM SUBSYSTEM
-M:	Thierry Reding <thierry.reding@avionic-design.de>
-L:	linux-kernel@vger.kernel.org
+M:	Thierry Reding <thierry.reding@gmail.com>
+L:	linux-pwm@vger.kernel.org
 S:	Maintained
 W:	http://gitorious.org/linux-pwm
 T:	git git://gitorious.org/linux-pwm/linux-pwm.git
@@ -6643,10 +6681,12 @@ F:	Documentation/networking/LICENSE.qla3xxx
 F:	drivers/net/ethernet/qlogic/qla3xxx.*
 
 QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
+M:	Himanshu Madhani <himanshu.madhani@qlogic.com>
 M:	Rajesh Borundia <rajesh.borundia@qlogic.com>
 M:	Shahed Shaikh <shahed.shaikh@qlogic.com>
 M:	Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
 M:	Sony Chacko <sony.chacko@qlogic.com>
+M:	Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
 M:	linux-driver@qlogic.com
 L:	netdev@vger.kernel.org
 S:	Supported
@@ -6994,7 +7034,7 @@ S:	Odd Fixes
 F:	drivers/media/i2c/saa6588*
 
 SAA7134 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -7039,6 +7079,15 @@ F:	drivers/regulator/s5m*.c
 F:	drivers/rtc/rtc-sec.c
 F:	include/linux/mfd/samsung/
 
+SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
+M:	Kyungmin Park <kyungmin.park@samsung.com>
+M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
+L:	linux-media@vger.kernel.org
+Q:	https://patchwork.linuxtv.org/project/linux-media/list/
+S:	Supported
+F:	drivers/media/platform/exynos4-is/
+F:	include/media/s5p_fimc.h
+
 SAMSUNG S3C24XX/S3C64XX SOC SERIES CAMIF DRIVER
 M:	Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
 L:	linux-media@vger.kernel.org
@@ -7206,7 +7255,7 @@ F:	drivers/mmc/host/sdhci.*
 F:	drivers/mmc/host/sdhci-pltfm.[ch]
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
-M:	Anton Vorontsov <avorontsov@ru.mvista.com>
+M:	Anton Vorontsov <anton@enomsg.org>
 L:	linuxppc-dev@lists.ozlabs.org
 L:	linux-mmc@vger.kernel.org
 S:	Maintained
@@ -7356,7 +7405,7 @@ S:	Odd Fixes
 F:	drivers/media/radio/radio-si4713.h
 
 SIANO DVB DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -8061,7 +8110,7 @@ S:	Maintained
 F:	drivers/media/i2c/tda9840*
 
 TEA5761 TUNER DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -8069,7 +8118,7 @@ S:	Odd fixes
 F:	drivers/media/tuners/tea5761.*
 
 TEA5767 TUNER DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -8142,6 +8191,7 @@ M:      Zhang Rui <rui.zhang@intel.com>
 M:      Eduardo Valentin <eduardo.valentin@ti.com>
 L:      linux-pm@vger.kernel.org
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal.git
 Q:      https://patchwork.kernel.org/project/linux-pm/list/
 S:      Supported
 F:      drivers/thermal/
@@ -8166,8 +8216,8 @@ F:	drivers/platform/x86/thinkpad_acpi.c
 TI BANDGAP AND THERMAL DRIVER
 M:	Eduardo Valentin <eduardo.valentin@ti.com>
 L:	linux-pm@vger.kernel.org
-S:	Maintained
-F:	drivers/staging/omap-thermal/
+S:	Supported
+F:	drivers/thermal/ti-soc-thermal/
 
 TI FLASH MEDIA INTERFACE DRIVER
 M:	Alex Dubov <oakad@yahoo.com>
@@ -8307,7 +8357,7 @@ F:	include/linux/shmem_fs.h
 F:	mm/shmem.c
 
 TM6000 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -8876,6 +8926,7 @@ M:	"Michael S. Tsirkin" <mst@redhat.com>
 L:	virtualization@lists.linux-foundation.org
 S:	Maintained
 F:	drivers/virtio/
+F:	tools/virtio/
 F:	drivers/net/virtio_net.c
 F:	drivers/block/virtio_blk.c
 F:	include/linux/virtio_*.h
@@ -8971,7 +9022,7 @@ M:	Liam Girdwood <lgirdwood@gmail.com>
 M:	Mark Brown <broonie@kernel.org>
 W:	http://opensource.wolfsonmicro.com/node/15
 W:	http://www.slimlogic.co.uk/?p=48
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/regulator.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
 S:	Supported
 F:	drivers/regulator/
 F:	include/linux/regulator/
@@ -9163,7 +9214,7 @@ S:	Maintained
 F:	arch/x86/kernel/cpu/mcheck/*
 
 XC2028/3028 TUNER DRIVER
-M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+M:	Mauro Carvalho Chehab <m.chehab@samsung.com>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git

Makefile

@@ -1,8 +1,8 @@
 VERSION = 3
-PATCHLEVEL = 10
+PATCHLEVEL = 11
 SUBLEVEL = 0
-EXTRAVERSION =
-NAME = Unicycling Gorilla
+EXTRAVERSION = -rc2
+NAME = Linux for Workgroups
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
@@ -1116,6 +1116,7 @@ help:
 	@echo  '  gtags           - Generate GNU GLOBAL index'
 	@echo  '  kernelrelease	  - Output the release version string'
 	@echo  '  kernelversion	  - Output the version stored in Makefile'
+	@echo  '  image_name	  - Output the image name'
 	@echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
 	 echo  '                    (default: $(INSTALL_HDR_PATH))'; \
 	 echo  ''
@@ -1310,7 +1311,7 @@ export_report:
 endif #ifeq ($(config-targets),1)
 endif #ifeq ($(mixed-targets),1)
 
-PHONY += checkstack kernelrelease kernelversion
+PHONY += checkstack kernelrelease kernelversion image_name
 
 # UML needs a little special treatment here.  It wants to use the host
 # toolchain, so needs $(SUBARCH) passed to checkstack.pl.  Everyone
@@ -1331,6 +1332,9 @@ kernelrelease:
 kernelversion:
 	@echo $(KERNELVERSION)
 
+image_name:
+	@echo $(KBUILD_IMAGE)
+
 # Clear a bunch of variables before executing the submake
 tools/: FORCE
 	$(Q)mkdir -p $(objtree)/tools

arch/alpha/include/uapi/asm/fcntl.h

@@ -32,7 +32,7 @@
 #define O_SYNC		(__O_SYNC|O_DSYNC)
 
 #define O_PATH		040000000
-#define O_TMPFILE	0100000000
+#define __O_TMPFILE	0100000000
 
 #define F_GETLK		7
 #define F_SETLK		8

arch/alpha/include/uapi/asm/socket.h

@@ -81,4 +81,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_BUSY_POLL			46
+
 #endif /* _UAPI_ASM_SOCKET_H */

arch/alpha/kernel/smp.c

@@ -116,7 +116,7 @@ wait_boot_cpu_to_stop(int cpuid)
 /*
  * Where secondaries begin a life of C.
  */
-void __cpuinit
+void
 smp_callin(void)
 {
 	int cpuid = hard_smp_processor_id();
@@ -194,7 +194,7 @@ wait_for_txrdy (unsigned long cpumask)
  * Send a message to a secondary's console.  "START" is one such
  * interesting message.  ;-)
  */
-static void __cpuinit
+static void
 send_secondary_console_msg(char *str, int cpuid)
 {
 	struct percpu_struct *cpu;
@@ -285,7 +285,7 @@ recv_secondary_console_msg(void)
 /*
  * Convince the console to have a secondary cpu begin execution.
  */
-static int __cpuinit
+static int
 secondary_cpu_start(int cpuid, struct task_struct *idle)
 {
 	struct percpu_struct *cpu;
@@ -356,7 +356,7 @@ secondary_cpu_start(int cpuid, struct task_struct *idle)
 /*
  * Bring one cpu online.
  */
-static int __cpuinit
+static int
 smp_boot_one_cpu(int cpuid, struct task_struct *idle)
 {
 	unsigned long timeout;
@@ -472,7 +472,7 @@ smp_prepare_boot_cpu(void)
 {
 }
 
-int __cpuinit
+int
 __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
 	smp_boot_one_cpu(cpu, tidle);

arch/alpha/kernel/traps.c

@@ -32,7 +32,7 @@
 
 static int opDEC_fix;
 
-static void __cpuinit
+static void
 opDEC_check(void)
 {
 	__asm__ __volatile__ (
@@ -1059,7 +1059,7 @@ give_sigbus:
 	return;
 }
 
-void __cpuinit
+void
 trap_init(void)
 {
 	/* Tell PAL-code what global pointer we want in the kernel.  */

arch/arc/boot/dts/abilis_tb100.dtsi

@@ -21,10 +21,6 @@
 
 /include/ "abilis_tb10x.dtsi"
 
-/* interrupt specifiers
- * --------------------
- * 0: rising, 1: low, 2: high, 3: falling,
- */
 
 / {
 	clock-frequency		= <500000000>;	/* 500 MHZ */
@@ -173,7 +169,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF140000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -185,7 +181,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF141000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -197,7 +193,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF142000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -209,7 +205,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF143000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -221,7 +217,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF144000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -233,7 +229,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF145000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -245,7 +241,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF146000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -257,7 +253,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF147000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -269,7 +265,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF148000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -281,7 +277,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF149000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -293,7 +289,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14A000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -305,7 +301,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14B000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -317,7 +313,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14C000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -329,7 +325,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14D000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;

arch/arc/boot/dts/abilis_tb101.dtsi

@@ -21,10 +21,6 @@
 
 /include/ "abilis_tb10x.dtsi"
 
-/* interrupt specifiers
- * --------------------
- * 0: rising, 1: low, 2: high, 3: falling,
- */
 
 / {
 	clock-frequency		= <500000000>;	/* 500 MHZ */
@@ -182,7 +178,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF140000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -194,7 +190,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF141000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -206,7 +202,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF142000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -218,7 +214,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF143000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -230,7 +226,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF144000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -242,7 +238,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF145000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -254,7 +250,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF146000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -266,7 +262,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF147000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -278,7 +274,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF148000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -290,7 +286,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF149000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -302,7 +298,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14A000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -314,7 +310,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14B000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -326,7 +322,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14C000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;
@@ -338,7 +334,7 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <27 1>;
+			interrupts = <27 2>;
 			reg = <0xFF14D000 0x1000>;
 			gpio-controller;
 			#gpio-cells = <1>;

arch/arc/boot/dts/abilis_tb10x.dtsi

@@ -19,10 +19,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
-/* interrupt specifiers
- * --------------------
- * 0: rising, 1: low, 2: high, 3: falling,
- */
 
 / {
 	compatible		= "abilis,arc-tb10x";
@@ -78,7 +74,7 @@
 			#interrupt-cells = <1>;
 		};
 		tb10x_ictl: pic@fe002000 {
-			compatible = "abilis,tb10x_ictl";
+			compatible = "abilis,tb10x-ictl";
 			reg = <0xFE002000 0x20>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -91,7 +87,7 @@
 			compatible = "snps,dw-apb-uart";
 			reg = <0xFF100000 0x100>;
 			clock-frequency = <166666666>;
-			interrupts = <25 1>;
+			interrupts = <25 8>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			interrupt-parent = <&tb10x_ictl>;
@@ -100,7 +96,7 @@
 			compatible = "snps,dwmac-3.70a","snps,dwmac";
 			reg = <0xFE100000 0x1058>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <6 1>;
+			interrupts = <6 8>;
 			interrupt-names = "macirq";
 			clocks = <&ahb_clk>;
 			clock-names = "stmmaceth";
@@ -109,7 +105,7 @@
 			compatible = "snps,dma-spear1340";
 			reg = <0xFE000000 0x400>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <14 1>;
+			interrupts = <14 8>;
 			dma-channels = <6>;
 			dma-requests = <0>;
 			dma-masters = <1>;
@@ -128,7 +124,7 @@
 			compatible = "snps,designware-i2c";
 			reg = <0xFF120000 0x1000>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <12 1>;
+			interrupts = <12 8>;
 			clocks = <&ahb_clk>;
 		};
 		i2c1: i2c@FF121000 {
@@ -137,7 +133,7 @@
 			compatible = "snps,designware-i2c";
 			reg = <0xFF121000 0x1000>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <12 1>;
+			interrupts = <12 8>;
 			clocks = <&ahb_clk>;
 		};
 		i2c2: i2c@FF122000 {
@@ -146,7 +142,7 @@
 			compatible = "snps,designware-i2c";
 			reg = <0xFF122000 0x1000>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <12 1>;
+			interrupts = <12 8>;
 			clocks = <&ahb_clk>;
 		};
 		i2c3: i2c@FF123000 {
@@ -155,7 +151,7 @@
 			compatible = "snps,designware-i2c";
 			reg = <0xFF123000 0x1000>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <12 1>;
+			interrupts = <12 8>;
 			clocks = <&ahb_clk>;
 		};
 		i2c4: i2c@FF124000 {
@@ -164,7 +160,7 @@
 			compatible = "snps,designware-i2c";
 			reg = <0xFF124000 0x1000>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <12 1>;
+			interrupts = <12 8>;
 			clocks = <&ahb_clk>;
 		};
 
@@ -176,7 +172,7 @@
 			num-cs = <1>;
 			reg = <0xFE010000 0x20>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <26 1>;
+			interrupts = <26 8>;
 			clocks = <&ahb_clk>;
 		};
 		spi1: spi@0xFE011000 {
@@ -187,7 +183,7 @@
 			num-cs = <2>;
 			reg = <0xFE011000 0x20>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <10 1>;
+			interrupts = <10 8>;
 			clocks = <&ahb_clk>;
 		};
 
@@ -195,7 +191,7 @@
 			compatible = "abilis,tb100-tsm";
 			reg = <0xff316000 0x400>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <17 1>;
+			interrupts = <17 8>;
 			output-clkdiv = <4>;
 			global-packet-delay = <0x21>;
 			port-packet-delay = <0>;
@@ -213,7 +209,7 @@
 					"cpuctrl",
 					"a6it_int_force";
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <20 1>, <19 1>;
+			interrupts = <20 2>, <19 2>;
 			interrupt-names = "cmd_irq", "event_irq";
 		};
 		tb10x_mdsc0: tb10x-mdscr@FF300000 {
@@ -239,7 +235,7 @@
 			compatible = "abilis,tb100-wfb";
 			reg = <0xff319000 0x1000>;
 			interrupt-parent = <&tb10x_ictl>;
-			interrupts = <16 1>;
+			interrupts = <16 8>;
 		};
 	};
 };

arch/arc/boot/dts/angel4.dts

@@ -51,5 +51,21 @@
 			current-speed = <115200>;
 			status = "okay";
 		};
+
+		ethernet@c0fc2000 {
+			compatible = "snps,arc-emac";
+			reg = <0xc0fc2000 0x3c>;
+			interrupts = <6>;
+			mac-address = [ 00 11 22 33 44 55 ];
+			clock-frequency = <80000000>;
+			max-speed = <100>;
+			phy = <&phy0>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+			phy0: ethernet-phy@0 {
+				reg = <1>;
+			};
+		};
 	};
 };

arch/arc/configs/fpga_defconfig

@@ -38,6 +38,9 @@ CONFIG_INET=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FIRMWARE_IN_KERNEL is not set
 # CONFIG_BLK_DEV is not set
+CONFIG_NETDEVICES=y
+CONFIG_ARC_EMAC=y
+CONFIG_LXT_PHY=y
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set

arch/arc/plat-arcfpga/include/plat/irq.h

@@ -16,8 +16,6 @@
 #define UART1_IRQ	10
 #define UART2_IRQ	11
 
-#define VMAC_IRQ	6
-
 #define IDE_IRQ		13
 #define PCI_IRQ		14
 #define PS2_IRQ		15

arch/arc/plat-arcfpga/include/plat/memmap.h

@@ -15,8 +15,6 @@
 #define UART0_BASE              0xC0FC1000
 #define UART1_BASE              0xC0FC1100
 
-#define VMAC_REG_BASEADDR       0xC0FC2000
-
 #define IDE_CONTROLLER_BASE     0xC0FC9000
 
 #define AHB_PCI_HOST_BRG_BASE   0xC0FD0000

arch/arc/plat-tb10x/Kconfig

@@ -22,6 +22,7 @@ menuconfig ARC_PLAT_TB10X
 	select PINCTRL
 	select PINMUX
 	select ARCH_REQUIRE_GPIOLIB
+	select TB10X_IRQC
 	help
 	  Support for platforms based on the TB10x home media gateway SOC by
 	  Abilis Systems. TB10x is based on the ARC700 CPU architecture.

arch/arm/Kconfig

@@ -1316,7 +1316,7 @@ config ARM_ERRATA_754327
 
 config ARM_ERRATA_364296
 	bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
-	depends on CPU_V6 && !SMP
+	depends on CPU_V6
 	help
 	  This options enables the workaround for the 364296 ARM1136
 	  r0p2 erratum (possible cache data corruption with