Merge tag 'v4.6-rc4' into sunxi-next

Linux 4.6-rc4

.mailmap

@@ -33,6 +33,7 @@ Björn Steinbrink <B.Steinbrink@gmx.de>
 Brian Avery <b.avery@hp.com>
 Brian King <brking@us.ibm.com>
 Christoph Hellwig <hch@lst.de>
+Christophe Ricard <christophe.ricard@gmail.com>
 Corey Minyard <minyard@acm.org>
 Damian Hobson-Garcia <dhobsong@igel.co.jp>
 David Brownell <david-b@pacbell.net>

Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl

@@ -1,23 +1,18 @@
-What:		/sys/devices/platform/<i2c-demux-name>/cur_master
+What:		/sys/devices/platform/<i2c-demux-name>/available_masters
 Date:		January 2016
 KernelVersion:	4.6
 Contact:	Wolfram Sang <wsa@the-dreams.de>
 Description:
+		Reading the file will give you a list of masters which can be
+		selected for a demultiplexed bus. The format is
+		"<index>:<name>". Example from a Renesas Lager board:
 
-This file selects the active I2C master for a demultiplexed bus.
+		0:/i2c@e6500000 1:/i2c@e6508000
 
-Write 0 there for the first master, 1 for the second etc. Reading the file will
-give you a list with the active master marked. Example from a Renesas Lager
-board:
-
-root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master
-* 0 - /i2c@9
-  1 - /i2c@e6520000
-  2 - /i2c@e6530000
-
-root@Lager:~# echo 2 > /sys/devices/platform/i2c@8/cur_master
-
-root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master
-  0 - /i2c@9
-  1 - /i2c@e6520000
-* 2 - /i2c@e6530000
+What:		/sys/devices/platform/<i2c-demux-name>/current_master
+Date:		January 2016
+KernelVersion:	4.6
+Contact:	Wolfram Sang <wsa@the-dreams.de>
+Description:
+		This file selects/shows the active I2C master for a demultiplexed
+		bus. It uses the <index> value from the file 'available_masters'.

Documentation/devicetree/bindings/clock/qca,ath79-pll.txt

@@ -3,7 +3,7 @@ Binding for Qualcomm Atheros AR7xxx/AR9XXX PLL controller
 The PPL controller provides the 3 main clocks of the SoC: CPU, DDR and AHB.
 
 Required Properties:
-- compatible: has to be "qca,<soctype>-cpu-intc" and one of the following
+- compatible: has to be "qca,<soctype>-pll" and one of the following
   fallbacks:
   - "qca,ar7100-pll"
   - "qca,ar7240-pll"
@@ -21,8 +21,8 @@ Optional properties:
 
 Example:
 
-	memory-controller@18050000 {
-		compatible = "qca,ar9132-ppl", "qca,ar9130-pll";
+	pll-controller@18050000 {
+		compatible = "qca,ar9132-pll", "qca,ar9130-pll";
 		reg = <0x18050000 0x20>;
 
 		clock-names = "ref";

Documentation/devicetree/bindings/pinctrl/img,pistachio-pinctrl.txt

@@ -134,12 +134,12 @@ mfio80		ddr_debug, mips_trace_data, mips_debug
 mfio81		dreq0, mips_trace_data, eth_debug
 mfio82		dreq1, mips_trace_data, eth_debug
 mfio83		mips_pll_lock, mips_trace_data, usb_debug
-mfio84		sys_pll_lock, mips_trace_data, usb_debug
-mfio85		wifi_pll_lock, mips_trace_data, sdhost_debug
-mfio86		bt_pll_lock, mips_trace_data, sdhost_debug
-mfio87		rpu_v_pll_lock, dreq2, socif_debug
-mfio88		rpu_l_pll_lock, dreq3, socif_debug
-mfio89		audio_pll_lock, dreq4, dreq5
+mfio84		audio_pll_lock, mips_trace_data, usb_debug
+mfio85		rpu_v_pll_lock, mips_trace_data, sdhost_debug
+mfio86		rpu_l_pll_lock, mips_trace_data, sdhost_debug
+mfio87		sys_pll_lock, dreq2, socif_debug
+mfio88		wifi_pll_lock, dreq3, socif_debug
+mfio89		bt_pll_lock, dreq4, dreq5
 tck
 trstn
 tdi

Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt

@@ -1,13 +1,16 @@
 == Amlogic Meson pinmux controller ==
 
 Required properties for the root node:
- - compatible: "amlogic,meson8-pinctrl" or "amlogic,meson8b-pinctrl"
+ - compatible: one of "amlogic,meson8-cbus-pinctrl"
+		      "amlogic,meson8b-cbus-pinctrl"
+		      "amlogic,meson8-aobus-pinctrl"
+		      "amlogic,meson8b-aobus-pinctrl"
  - reg: address and size of registers controlling irq functionality
 
 === GPIO sub-nodes ===
 
-The 2 power domains of the controller (regular and always-on) are
-represented as sub-nodes and each of them acts as a GPIO controller.
+The GPIO bank for the controller is represented as a sub-node and it acts as a
+GPIO controller.
 
 Required properties for sub-nodes are:
  - reg: should contain address and size for mux, pull-enable, pull and
@@ -18,10 +21,6 @@ Required properties for sub-nodes are:
  - gpio-controller: identifies the node as a gpio controller
  - #gpio-cells: must be 2
 
-Valid sub-node names are:
- - "banks" for the regular domain
- - "ao-bank" for the always-on domain
-
 === Other sub-nodes ===
 
 Child nodes without the "gpio-controller" represent some desired
@@ -45,7 +44,7 @@ pinctrl-bindings.txt
 === Example ===
 
 	pinctrl: pinctrl@c1109880 {
-		compatible = "amlogic,meson8-pinctrl";
+		compatible = "amlogic,meson8-cbus-pinctrl";
 		reg = <0xc1109880 0x10>;
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -61,15 +60,6 @@ pinctrl-bindings.txt
 			#gpio-cells = <2>;
                };
 
-		gpio_ao: ao-bank@c1108030 {
-			reg = <0xc8100014 0x4>,
-			      <0xc810002c 0x4>,
-			      <0xc8100024 0x8>;
-			reg-names = "mux", "pull", "gpio";
-			gpio-controller;
-			#gpio-cells = <2>;
-		};
-
 		nand {
 			mux {
 				groups = "nand_io", "nand_io_ce0", "nand_io_ce1",
@@ -79,18 +69,4 @@ pinctrl-bindings.txt
 				function = "nand";
 			};
 		};
-
-		uart_ao_a {
-			mux {
-				groups = "uart_tx_ao_a", "uart_rx_ao_a",
-					 "uart_cts_ao_a", "uart_rts_ao_a";
-				function = "uart_ao";
-			};
-
-			conf {
-				pins = "GPIOAO_0", "GPIOAO_1",
-				       "GPIOAO_2", "GPIOAO_3";
-				bias-disable;
-			};
-		};
 	};

Documentation/filesystems/cramfs.txt

@@ -38,7 +38,7 @@ the update lasts only as long as the inode is cached in memory, after
 which the timestamp reverts to 1970, i.e. moves backwards in time.
 
 Currently, cramfs must be written and read with architectures of the
-same endianness, and can be read only by kernels with PAGE_CACHE_SIZE
+same endianness, and can be read only by kernels with PAGE_SIZE
 == 4096.  At least the latter of these is a bug, but it hasn't been
 decided what the best fix is.  For the moment if you have larger pages
 you can just change the #define in mkcramfs.c, so long as you don't

Documentation/filesystems/tmpfs.txt

@@ -60,7 +60,7 @@ size:      The limit of allocated bytes for this tmpfs instance. The
            default is half of your physical RAM without swap. If you
            oversize your tmpfs instances the machine will deadlock
            since the OOM handler will not be able to free that memory.
-nr_blocks: The same as size, but in blocks of PAGE_CACHE_SIZE.
+nr_blocks: The same as size, but in blocks of PAGE_SIZE.
 nr_inodes: The maximum number of inodes for this instance. The default
            is half of the number of your physical RAM pages, or (on a
            machine with highmem) the number of lowmem RAM pages,

Documentation/filesystems/vfs.txt

@@ -708,9 +708,9 @@ struct address_space_operations {
 	from the address space.  This generally corresponds to either a
 	truncation, punch hole  or a complete invalidation of the address
 	space (in the latter case 'offset' will always be 0 and 'length'
-	will be PAGE_CACHE_SIZE). Any private data associated with the page
+	will be PAGE_SIZE). Any private data associated with the page
 	should be updated to reflect this truncation.  If offset is 0 and
-	length is PAGE_CACHE_SIZE, then the private data should be released,
+	length is PAGE_SIZE, then the private data should be released,
 	because the page must be able to be completely discarded.  This may
 	be done by calling the ->releasepage function, but in this case the
 	release MUST succeed.

Documentation/kernel-parameters.txt

@@ -4077,6 +4077,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 					sector if the number is odd);
 				i = IGNORE_DEVICE (don't bind to this
 					device);
+				j = NO_REPORT_LUNS (don't use report luns
+					command, uas only);
 				l = NOT_LOCKABLE (don't try to lock and
 					unlock ejectable media);
 				m = MAX_SECTORS_64 (don't transfer more

Documentation/networking/switchdev.txt

@@ -386,7 +386,7 @@ used. First phase is to "prepare" anything needed, including various checks,
 memory allocation, etc. The goal is to handle the stuff that is not unlikely
 to fail here. The second phase is to "commit" the actual changes.
 
-Switchdev provides an inftrastructure for sharing items (for example memory
+Switchdev provides an infrastructure for sharing items (for example memory
 allocations) between the two phases.
 
 The object created by a driver in "prepare" phase and it is queued up by:

Documentation/power/runtime_pm.txt

@@ -586,6 +586,10 @@ drivers to make their ->remove() callbacks avoid races with runtime PM directly,
 but also it allows of more flexibility in the handling of devices during the
 removal of their drivers.
 
+Drivers in ->remove() callback should undo the runtime PM changes done
+in ->probe(). Usually this means calling pm_runtime_disable(),
+pm_runtime_dont_use_autosuspend() etc.
+
 The user space can effectively disallow the driver of the device to power manage
 it at run time by changing the value of its /sys/devices/.../power/control
 attribute to "on", which causes pm_runtime_forbid() to be called.  In principle,

Documentation/usb/gadget_multi.txt

@@ -43,7 +43,7 @@ For the gadget two work under Windows two conditions have to be met:
 First of all, Windows need to detect the gadget as an USB composite
 gadget which on its own have some conditions[4].  If they are met,
 Windows lets USB Generic Parent Driver[5] handle the device which then
-tries to much drivers for each individual interface (sort of, don't
+tries to match drivers for each individual interface (sort of, don't
 get into too many details).
 
 The good news is: you do not have to worry about most of the

Documentation/x86/protection-keys.txt

@@ -0,0 +1,27 @@
+Memory Protection Keys for Userspace (PKU aka PKEYs) is a CPU feature
+which will be found on future Intel CPUs.
+
+Memory Protection Keys provides a mechanism for enforcing page-based
+protections, but without requiring modification of the page tables
+when an application changes protection domains.  It works by
+dedicating 4 previously ignored bits in each page table entry to a
+"protection key", giving 16 possible keys.
+
+There is also a new user-accessible register (PKRU) with two separate
+bits (Access Disable and Write Disable) for each key.  Being a CPU
+register, PKRU is inherently thread-local, potentially giving each
+thread a different set of protections from every other thread.
+
+There are two new instructions (RDPKRU/WRPKRU) for reading and writing
+to the new register.  The feature is only available in 64-bit mode,
+even though there is theoretically space in the PAE PTEs.  These
+permissions are enforced on data access only and have no effect on
+instruction fetches.
+
+=========================== Config Option ===========================
+
+This config option adds approximately 1.5kb of text. and 50 bytes of
+data to the executable.  A workload which does large O_DIRECT reads
+of holes in XFS files was run to exercise get_user_pages_fast().  No
+performance delta was observed with the config option
+enabled or disabled.