Merge tag 'v5.15.27' into lf-5.15.y

This is the 5.15.27 stable release

* tag 'v5.15.27': (3069 commits)
  Linux 5.15.27
  hamradio: fix macro redefine warning
  KVM: x86/mmu: Passing up the error state of mmu_alloc_shadow_roots()
  ...

Signed-off-by: Jason Liu <jason.hui.liu@nxp.com>

 Conflicts:
	arch/arm/boot/dts/imx7ulp.dtsi
	arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
	arch/arm64/boot/dts/freescale/imx8mq.dtsi
	drivers/dma-buf/heaps/cma_heap.c
	drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
	drivers/gpu/drm/mxsfb/mxsfb_kms.c
	drivers/mmc/host/sdhci-esdhc-imx.c
	drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
	drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
	drivers/rpmsg/rpmsg_char.c
	drivers/soc/imx/gpcv2.c
	drivers/thermal/imx_thermal.c

29 files changed, 134 insertions, 96 deletions

diff --git a/Documentation/accounting/psi.rst b/Documentation/accounting/psi.rst
index f2b3439edcc2..860fe651d645 100644
--- a/Documentation/accounting/psi.rst
+++ b/Documentation/accounting/psi.rst
@@ -92,7 +92,8 @@ Triggers can be set on more than one psi metric and more than one trigger
 for the same psi metric can be specified. However for each trigger a separate
 file descriptor is required to be able to poll it separately from others,
 therefore for each trigger a separate open() syscall should be made even
-when opening the same psi interface file.
+when opening the same psi interface file. Write operations to a file descriptor
+with an already existing psi trigger will fail with EBUSY.
 
 Monitors activate only when system enters stall state for the monitored
 psi metric and deactivates upon exit from the stall state. While system is
diff --git a/Documentation/admin-guide/cifs/usage.rst b/Documentation/admin-guide/cifs/usage.rst
index f170d8820258..3766bf8a1c20 100644
--- a/Documentation/admin-guide/cifs/usage.rst
+++ b/Documentation/admin-guide/cifs/usage.rst
@@ -734,10 +734,9 @@ SecurityFlags		Flags which control security negotiation and
 			using weaker password hashes is 0x37037 (lanman,
 			plaintext, ntlm, ntlmv2, signing allowed).  Some
 			SecurityFlags require the corresponding menuconfig
-			options to be enabled (lanman and plaintext require
-			CONFIG_CIFS_WEAK_PW_HASH for example).  Enabling
-			plaintext authentication currently requires also
-			enabling lanman authentication in the security flags
+			options to be enabled.  Enabling plaintext
+			authentication currently requires also enabling
+			lanman authentication in the security flags
 			because the cifs module only supports sending
 			laintext passwords using the older lanman dialect
 			form of the session setup SMB.  (e.g. for authentication
diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
index 922c23bb4372..c07dc0ee860e 100644
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -2339,13 +2339,7 @@
 		disks (see major number 3) except that the limit on
 		partitions is 31.
 
- 162 char	Raw block device interface
-		  0 = /dev/rawctl	Raw I/O control device
-		  1 = /dev/raw/raw1	First raw I/O device
-		  2 = /dev/raw/raw2	Second raw I/O device
-		    ...
-		 max minor number of raw device is set by kernel config
-		 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
+ 162 char	Used for (now removed) raw block device interface
 
  163 char
 
diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index e05e581af5cf..985181dba0ba 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -468,7 +468,7 @@ Spectre variant 2
    before invoking any firmware code to prevent Spectre variant 2 exploits
    using the firmware.
 
-   Using kernel address space randomization (CONFIG_RANDOMIZE_SLAB=y
+   Using kernel address space randomization (CONFIG_RANDOMIZE_BASE=y
    and CONFIG_SLAB_FREELIST_RANDOM=y in the kernel configuration) makes
    attacks on the kernel generally more difficult.
 
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 1396fd2d9031..8ff6dafafdf8 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1690,6 +1690,8 @@
 			architectures force reset to be always executed
 	i8042.unlock	[HW] Unlock (ignore) the keylock
 	i8042.kbdreset	[HW] Reset device connected to KBD port
+	i8042.probe_defer
+			[HW] Allow deferred probing upon i8042 probe errors
 
 	i810=		[HW,DRM]
 
@@ -2403,8 +2405,12 @@
 			Default is 1 (enabled)
 
 	kvm-intel.emulate_invalid_guest_state=
-			[KVM,Intel] Enable emulation of invalid guest states
-			Default is 0 (disabled)
+			[KVM,Intel] Disable emulation of invalid guest state.
+			Ignored if kvm-intel.enable_unrestricted_guest=1, as
+			guest state is never invalid for unrestricted guests.
+			This param doesn't apply to nested guests (L2), as KVM
+			never emulates invalid L2 guest state.
+			Default is 1 (enabled)
 
 	kvm-intel.flexpriority=
 			[KVM,Intel] Disable FlexPriority feature (TPR shadow).
diff --git a/Documentation/admin-guide/mm/pagemap.rst b/Documentation/admin-guide/mm/pagemap.rst
index fb578fbbb76c..49857ce1cd03 100644
--- a/Documentation/admin-guide/mm/pagemap.rst
+++ b/Documentation/admin-guide/mm/pagemap.rst
@@ -23,7 +23,7 @@ There are four components to pagemap:
     * Bit  56    page exclusively mapped (since 4.2)
     * Bit  57    pte is uffd-wp write-protected (since 5.13) (see
       :ref:`Documentation/admin-guide/mm/userfaultfd.rst <userfaultfd>`)
-    * Bits 57-60 zero
+    * Bits 58-60 zero
     * Bit  61    page is file-page or shared-anon (since 3.5)
     * Bit  62    page swapped
     * Bit  63    page present
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index 426162009ce9..0e486f41185e 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -1099,7 +1099,7 @@ task_delayacct
 ===============
 
 Enables/disables task delay accounting (see
-:doc:`accounting/delay-accounting.rst`). Enabling this feature incurs
+Documentation/accounting/delay-accounting.rst. Enabling this feature incurs
 a small amount of overhead in the scheduler but is useful for debugging
 and performance tuning. It is required by some tools such as iotop.
 
diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index e77635c5422c..fa8b31660cad 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -119,6 +119,9 @@ Boards (incomplete list of examples):
 - OMAP3 BeagleBoard : Low cost community board
   compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
 
+- OMAP3 BeagleBoard A to B4 : Early BeagleBoard revisions A to B4 with a timer quirk
+  compatible = "ti,omap3-beagle-ab4", "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
+
 - OMAP3 Tobi with Overo : Commercial expansion board with daughter board
   compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3430", "ti,omap3"
 
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
index cf5a208f2f10..343598c9f473 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
@@ -10,6 +10,9 @@ title: Amlogic specific extensions to the Synopsys Designware HDMI Controller
 maintainers:
   - Neil Armstrong <narmstrong@baylibre.com>
 
+allOf:
+  - $ref: /schemas/sound/name-prefix.yaml#
+
 description: |
   The Amlogic Meson Synopsys Designware Integration is composed of
   - A Synopsys DesignWare HDMI Controller IP
@@ -99,6 +102,8 @@ properties:
   "#sound-dai-cells":
     const: 0
 
+  sound-name-prefix: true
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
index 851cb0781217..047fd69e0377 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
@@ -78,6 +78,10 @@ properties:
   interrupts:
     maxItems: 1
 
+  amlogic,canvas:
+    description: should point to a canvas provider node
+    $ref: /schemas/types.yaml#/definitions/phandle
+
   power-domains:
     maxItems: 1
     description: phandle to the associated power domain
@@ -106,6 +110,7 @@ required:
   - port@1
   - "#address-cells"
   - "#size-cells"
+  - amlogic,canvas
 
 additionalProperties: false
 
@@ -118,6 +123,7 @@ examples:
         interrupts = <3>;
         #address-cells = <1>;
         #size-cells = <0>;
+        amlogic,canvas = <&canvas>;
 
         /* CVBS VDAC output port */
         port@0 {
diff --git a/Documentation/devicetree/bindings/input/hid-over-i2c.txt b/Documentation/devicetree/bindings/input/hid-over-i2c.txt
index c76bafaf98d2..34c43d3bddfd 100644
--- a/Documentation/devicetree/bindings/input/hid-over-i2c.txt
+++ b/Documentation/devicetree/bindings/input/hid-over-i2c.txt
@@ -32,6 +32,8 @@ device-specific compatible properties, which should be used in addition to the
 - vdd-supply: phandle of the regulator that provides the supply voltage.
 - post-power-on-delay-ms: time required by the device after enabling its regulators
   or powering it on, before it is ready for communication.
+- touchscreen-inverted-x: See touchscreen.txt
+- touchscreen-inverted-y: See touchscreen.txt
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml
index 877183cf4278..1ef849dc74d7 100644
--- a/Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml
+++ b/Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml
@@ -79,6 +79,8 @@ properties:
 
             properties:
               data-lanes:
+                description:
+                  Note that 'fsl,imx7-mipi-csi2' only supports up to 2 data lines.
                 items:
                   minItems: 1
                   maxItems: 4
@@ -91,18 +93,6 @@ properties:
             required:
               - data-lanes
 
-            allOf:
-              - if:
-                  properties:
-                    compatible:
-                      contains:
-                        const: fsl,imx7-mipi-csi2
-                then:
-                  properties:
-                    data-lanes:
-                      items:
-                        maxItems: 2
-
       port@1:
         $ref: /schemas/graph.yaml#/properties/port
         description:
diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
index 0968b40aef1e..e3501bfa22e9 100644
--- a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
@@ -31,7 +31,7 @@ tcan4x5x: tcan4x5x@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		spi-max-frequency = <10000000>;
-		bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
+		bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
 		device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index 2766fe45bb98..ee42328a109d 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
@@ -91,6 +91,14 @@ properties:
       compensate for the board being designed with the lanes
       swapped.
 
+  enet-phy-lane-no-swap:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      If set, indicates that PHY will disable swap of the
+      TX/RX lanes. This property allows the PHY to work correcly after
+      e.g. wrong bootstrap configuration caused by issues in PCB
+      layout design.
+
   eee-broken-100tx:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index a07de5ed0ca6..2d34f3ccb257 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -199,12 +199,11 @@ patternProperties:
 
               contribution:
                 $ref: /schemas/types.yaml#/definitions/uint32
-                minimum: 0
-                maximum: 100
                 description:
-                  The percentage contribution of the cooling devices at the
-                  specific trip temperature referenced in this map
-                  to this thermal zone
+                  The cooling contribution to the thermal zone of the referred
+                  cooling device at the referred trip point. The contribution is
+                  a ratio of the sum of all cooling contributions within a
+                  thermal zone.
 
             required:
               - trip
diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
index 76cb9586ee00..93cd77a6e92c 100644
--- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
@@ -39,8 +39,8 @@ properties:
   samsung,syscon-phandle:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
-      Phandle to the PMU system controller node (in case of Exynos5250
-      and Exynos5420).
+      Phandle to the PMU system controller node (in case of Exynos5250,
+      Exynos5420 and Exynos7).
 
 required:
   - compatible
@@ -58,6 +58,7 @@ allOf:
             enum:
               - samsung,exynos5250-wdt
               - samsung,exynos5420-wdt
+              - samsung,exynos7-wdt
     then:
       required:
         - samsung,syscon-phandle
diff --git a/Documentation/driver-api/dmaengine/dmatest.rst b/Documentation/driver-api/dmaengine/dmatest.rst
index ee268d445d38..d2e1d8b58e7d 100644
--- a/Documentation/driver-api/dmaengine/dmatest.rst
+++ b/Documentation/driver-api/dmaengine/dmatest.rst
@@ -143,13 +143,14 @@ Part 5 - Handling channel allocation
 Allocating Channels
 -------------------
 
-Channels are required to be configured prior to starting the test run.
-Attempting to run the test without configuring the channels will fail.
+Channels do not need to be configured prior to starting a test run. Attempting
+to run the test without configuring the channels will result in testing any
+channels that are available.
 
 Example::
 
     % echo 1 > /sys/module/dmatest/parameters/run
-    dmatest: Could not start test, no channels configured
+    dmatest: No channels configured, continue with any
 
 Channels are registered using the "channel" parameter. Channels can be requested by their
 name, once requested, the channel is registered and a pending thread is added to the test list.
diff --git a/Documentation/driver-api/firewire.rst b/Documentation/driver-api/firewire.rst
index 94a2d7f01d99..d3cfa73cbb2b 100644
--- a/Documentation/driver-api/firewire.rst
+++ b/Documentation/driver-api/firewire.rst
@@ -19,7 +19,7 @@ of kernel interfaces is available via exported symbols in `firewire-core` module
 Firewire char device data structures
 ====================================
 
-.. include:: /ABI/stable/firewire-cdev
+.. include:: ../ABI/stable/firewire-cdev
     :literal:
 
 .. kernel-doc:: include/uapi/linux/firewire-cdev.h
@@ -28,7 +28,7 @@ Firewire char device data structures
 Firewire device probing and sysfs interfaces
 ============================================
 
-.. include:: /ABI/stable/sysfs-bus-firewire
+.. include:: ../ABI/stable/sysfs-bus-firewire
     :literal:
 
 .. kernel-doc:: drivers/firewire/core-device.c
diff --git a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
index b7ad47df49de..8b65b32e6e40 100644
--- a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
+++ b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
@@ -5,7 +5,7 @@
 Referencing hierarchical data nodes
 ===================================
 
-:Copyright: |copy| 2018 Intel Corporation
+:Copyright: |copy| 2018, 2021 Intel Corporation
 :Author: Sakari Ailus <sakari.ailus@linux.intel.com>
 
 ACPI in general allows referring to device objects in the tree only.
@@ -52,12 +52,14 @@ the ANOD object which is also the final target node of the reference.
 	    Name (NOD0, Package() {
 		ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 		Package () {
+		    Package () { "reg", 0 },
 		    Package () { "random-property", 3 },
 		}
 	    })
 	    Name (NOD1, Package() {
 		ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
 		Package () {
+		    Package () { "reg", 1 },
 		    Package () { "anothernode", "ANOD" },
 		}
 	    })
@@ -74,7 +76,11 @@ the ANOD object which is also the final target node of the reference.
 	    Name (_DSD, Package () {
 		ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 		Package () {
-		    Package () { "reference", ^DEV0, "node@1", "anothernode" },
+		    Package () {
+			"reference", Package () {
+			    ^DEV0, "node@1", "anothernode"
+			}
+		    },
 		}
 	    })
 	}
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 204ebdaadb45..03021dfa0dd8 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -183,25 +183,25 @@ Frame Buffer Compression (FBC)
 Display Refresh Rate Switching (DRRS)
 -------------------------------------
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :doc: Display Refresh Rate Switching (DRRS)
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :functions: intel_dp_set_drrs_state
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :functions: intel_edp_drrs_enable
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :functions: intel_edp_drrs_disable
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :functions: intel_edp_drrs_invalidate
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :functions: intel_edp_drrs_flush
 
-.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dp.c
+.. kernel-doc:: drivers/gpu/drm/i915/display/intel_drrs.c
    :functions: intel_dp_drrs_init
 
 DPIO
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 12e61869939e..67de1e94fdf7 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -311,27 +311,6 @@ Contact: Daniel Vetter, Noralf Tronnes
 
 Level: Advanced
 
-Garbage collect fbdev scrolling acceleration
---------------------------------------------
-
-Scroll acceleration is disabled in fbcon by hard-wiring p->scrollmode =
-SCROLL_REDRAW. There's a ton of code this will allow us to remove:
-
-- lots of code in fbcon.c
-
-- a bunch of the hooks in fbcon_ops, maybe the remaining hooks could be called
-  directly instead of the function table (with a switch on p->rotate)
-
-- fb_copyarea is unused after this, and can be deleted from all drivers
-
-Note that not all acceleration code can be deleted, since clearing and cursor
-support is still accelerated, which might be good candidates for further
-deletion projects.
-
-Contact: Daniel Vetter
-
-Level: Intermediate
-
 idr_init_base()
 ---------------
 
diff --git a/Documentation/hwmon/lm90.rst b/Documentation/hwmon/lm90.rst
index 3da8c6e06a36..05391fb4042d 100644
--- a/Documentation/hwmon/lm90.rst
+++ b/Documentation/hwmon/lm90.rst
@@ -265,6 +265,16 @@ Supported chips:
 
 	       https://www.ti.com/litv/pdf/sbos686
 
+  * Texas Instruments TMP461
+
+    Prefix: 'tmp461'
+
+    Addresses scanned: I2C 0x48 through 0x4F
+
+    Datasheet: Publicly available at TI website
+
+	       https://www.ti.com/lit/gpn/tmp461
+
 Author: Jean Delvare <jdelvare@suse.de>
 
 
diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst
index ddada4a53749..4fd7b70fcde1 100644
--- a/Documentation/locking/locktypes.rst
+++ b/Documentation/locking/locktypes.rst
@@ -439,11 +439,9 @@ preemption. The following substitution works on both kernels::
   spin_lock(&p->lock);
   p->count += this_cpu_read(var2);
 
-On a non-PREEMPT_RT kernel migrate_disable() maps to preempt_disable()
-which makes the above code fully equivalent. On a PREEMPT_RT kernel
 migrate_disable() ensures that the task is pinned on the current CPU which
 in turn guarantees that the per-CPU access to var1 and var2 are staying on
-the same CPU.
+the same CPU while the task remains preemptible.
 
 The migrate_disable() substitution is not valid for the following
 scenario::
@@ -456,9 +454,8 @@ scenario::
     p = this_cpu_ptr(&var1);
     p->val = func2();
 
-While correct on a non-PREEMPT_RT kernel, this breaks on PREEMPT_RT because
-here migrate_disable() does not protect against reentrancy from a
-preempting task. A correct substitution for this case is::
+This breaks because migrate_disable() does not protect against reentrancy from
+a preempting task. A correct substitution for this case is::
 
   func()
   {
diff --git a/Documentation/networking/bonding.rst b/Documentation/networking/bonding.rst
index 31cfd7d674a6..c0a789b00806 100644
--- a/Documentation/networking/bonding.rst
+++ b/Documentation/networking/bonding.rst
@@ -196,11 +196,12 @@ ad_actor_sys_prio
 ad_actor_system
 
 	In an AD system, this specifies the mac-address for the actor in
-	protocol packet exchanges (LACPDUs). The value cannot be NULL or
-	multicast. It is preferred to have the local-admin bit set for this
-	mac but driver does not enforce it. If the value is not given then
-	system defaults to using the masters' mac address as actors' system
-	address.
+	protocol packet exchanges (LACPDUs). The value cannot be a multicast
+	address. If the all-zeroes MAC is specified, bonding will internally
+	use the MAC of the bond itself. It is preferred to have the
+	local-admin bit set for this mac but driver does not enforce it. If
+	the value is not given then system defaults to using the masters'
+	mac address as actors' system address.
 
 	This parameter has effect only in 802.3ad mode and is available through
 	SysFs interface.
diff --git a/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst b/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst
index f1d5233e5e51..0a233b17c664 100644
--- a/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst
+++ b/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst
@@ -440,6 +440,22 @@ NOTE: For 82599-based network connections, if you are enabling jumbo frames in
 a virtual function (VF), jumbo frames must first be enabled in the physical
 function (PF). The VF MTU setting cannot be larger than the PF MTU.
 
+NBASE-T Support
+---------------
+The ixgbe driver supports NBASE-T on some devices. However, the advertisement
+of NBASE-T speeds is suppressed by default, to accommodate broken network
+switches which cannot cope with advertised NBASE-T speeds. Use the ethtool
+command to enable advertising NBASE-T speeds on devices which support it::
+
+  ethtool -s eth? advertise 0x1800000001028
+
+On Linux systems with INTERFACES(5), this can be specified as a pre-up command
+in /etc/network/interfaces so that the interface is always brought up with
+NBASE-T support, e.g.::
+
+  iface eth? inet dhcp
+       pre-up ethtool -s eth? advertise 0x1800000001028 || true
+
 Generic Receive Offload, aka GRO
 --------------------------------
 The driver supports the in-kernel software implementation of GRO. GRO has
diff --git a/Documentation/networking/ipvs-sysctl.rst b/Documentation/networking/ipvs-sysctl.rst
index 2afccc63856e..1cfbf1add2fc 100644
--- a/Documentation/networking/ipvs-sysctl.rst
+++ b/Documentation/networking/ipvs-sysctl.rst
@@ -37,8 +37,7 @@ conn_reuse_mode - INTEGER
 
 	0: disable any special handling on port reuse. The new
 	connection will be delivered to the same real server that was
-	servicing the previous connection. This will effectively
-	disable expire_nodest_conn.
+	servicing the previous connection.
 
 	bit 1: enable rescheduling of new connections when it is safe.
 	That is, whenever expire_nodest_conn and for TCP sockets, when
diff --git a/Documentation/sound/hd-audio/models.rst b/Documentation/sound/hd-audio/models.rst
index 0ea967d34583..d25335993e55 100644
--- a/Documentation/sound/hd-audio/models.rst
+++ b/Documentation/sound/hd-audio/models.rst
@@ -326,6 +326,8 @@ usi-headset
     Headset support on USI machines
 dual-codecs
     Lenovo laptops with dual codecs
+alc285-hp-amp-init
+    HP laptops which require speaker amplifier initialization (ALC285)
 
 ALC680
 ======
diff --git a/Documentation/trace/coresight/coresight-config.rst b/Documentation/trace/coresight/coresight-config.rst
index a4e3ef295240..6ed13398ca2c 100644
--- a/Documentation/trace/coresight/coresight-config.rst
+++ b/Documentation/trace/coresight/coresight-config.rst
@@ -211,19 +211,13 @@ also declared in the perf 'cs_etm' event infrastructure so that they can
 be selected when running trace under perf::
 
     $ ls /sys/devices/cs_etm
-    configurations  format  perf_event_mux_interval_ms  sinks  type
-    events  nr_addr_filters  power
+    cpu0  cpu2  events  nr_addr_filters		power  subsystem  uevent
+    cpu1  cpu3  format  perf_event_mux_interval_ms	sinks  type
 
-Key directories here are 'configurations' - which lists the loaded
-configurations, and 'events' - a generic perf directory which allows
-selection on the perf command line.::
+The key directory here is 'events' - a generic perf directory which allows
+selection on the perf command line. As with the sinks entries, this provides
+a hash of the configuration name.
 
-    $ ls configurations/
-    autofdo
-    $ cat configurations/autofdo
-    0xa7c3dddd
-
-As with the sinks entries, this provides a hash of the configuration name.
 The entry in the 'events' directory uses perfs built in syntax generator
 to substitute the syntax for the name when evaluating the command::
 
diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst
index 8ddb9b09451c..c47f381d0c00 100644
--- a/Documentation/trace/events.rst
+++ b/Documentation/trace/events.rst
@@ -198,6 +198,15 @@ The glob (~) accepts a wild card character (\*,?) and character classes
   prev_comm ~ "*sh*"
   prev_comm ~ "ba*sh"
 
+If the field is a pointer that points into user space (for example
+"filename" from sys_enter_openat), then you have to append ".ustring" to the
+field name::
+
+  filename.ustring ~ "password"
+
+As the kernel will have to know how to retrieve the memory that the pointer
+is at from user space.
+
 5.2 Setting filters
 -------------------
 
@@ -230,6 +239,16 @@ Currently the caret ('^') for an error always appears at the beginning of
 the filter string; the error message should still be useful though
 even without more accurate position info.
 
+5.2.1 Filter limitations
+------------------------
+
+If a filter is placed on a string pointer ``(char *)`` that does not point
+to a string on the ring buffer, but instead points to kernel or user space
+memory, then, for safety reasons, at most 1024 bytes of the content is
+copied onto a temporary buffer to do the compare. If the copy of the memory
+faults (the pointer points to memory that should not be accessed), then the
+string compare will be treated as not matching.
+
 5.3 Clearing filters
 --------------------