Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.16

"A couple of patches this time. Just some more compatibles for the
pca954x driver and an error handling tweak for the reg driver."

4 files changed, 43 insertions, 12 deletions

diff --git a/Documentation/devicetree/bindings/hwmon/jc42.txt b/Documentation/devicetree/bindings/hwmon/jc42.txt
index 07a250498fbb..f569db58f64a 100644
--- a/Documentation/devicetree/bindings/hwmon/jc42.txt
+++ b/Documentation/devicetree/bindings/hwmon/jc42.txt
@@ -34,6 +34,10 @@ Required properties:
 
 - reg: I2C address
 
+Optional properties:
+- smbus-timeout-disable: When set, the smbus timeout function will be disabled.
+			 This is not supported on all chips.
+
 Example:
 
 temp-sensor@1a {
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt
index aa097045a10e..34d91501342e 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt
@@ -1,10 +1,19 @@
 * NXP PCA954x I2C bus switch
 
+The driver supports NXP PCA954x and PCA984x I2C mux/switch devices.
+
 Required Properties:
 
   - compatible: Must contain one of the following.
-    "nxp,pca9540", "nxp,pca9542", "nxp,pca9543", "nxp,pca9544",
-    "nxp,pca9545", "nxp,pca9546", "nxp,pca9547", "nxp,pca9548"
+    "nxp,pca9540",
+    "nxp,pca9542",
+    "nxp,pca9543",
+    "nxp,pca9544",
+    "nxp,pca9545",
+    "nxp,pca9546", "nxp,pca9846",
+    "nxp,pca9547", "nxp,pca9847",
+    "nxp,pca9548", "nxp,pca9848",
+    "nxp,pca9849"
 
   - reg: The I2C address of the device.
 
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 361789df51ec..aa0a776c817a 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -5,7 +5,6 @@ How to get printk format specifiers right
 :Author: Randy Dunlap <rdunlap@infradead.org>
 :Author: Andrew Murray <amurray@mpc-data.co.uk>
 
-
 Integer types
 =============
 
@@ -45,6 +44,18 @@ return from vsnprintf.
 Raw pointer value SHOULD be printed with %p. The kernel supports
 the following extended format specifiers for pointer types:
 
+Pointer Types
+=============
+
+Pointers printed without a specifier extension (i.e unadorned %p) are
+hashed to give a unique identifier without leaking kernel addresses to user
+space. On 64 bit machines the first 32 bits are zeroed. If you _really_
+want the address see %px below.
+
+::
+
+	%p	abcdef12 or 00000000abcdef12
+
 Symbols/Function Pointers
 =========================
 
@@ -85,18 +96,32 @@ Examples::
 	printk("Faulted at %pS\n", (void *)regs->ip);
 	printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);
 
-
 Kernel Pointers
 ===============
 
 ::
 
-	%pK	0x01234567 or 0x0123456789abcdef
+	%pK	01234567 or 0123456789abcdef
 
 For printing kernel pointers which should be hidden from unprivileged
 users. The behaviour of ``%pK`` depends on the ``kptr_restrict sysctl`` - see
 Documentation/sysctl/kernel.txt for more details.
 
+Unmodified Addresses
+====================
+
+::
+
+	%px	01234567 or 0123456789abcdef
+
+For printing pointers when you _really_ want to print the address. Please
+consider whether or not you are leaking sensitive information about the
+Kernel layout in memory before printing pointers with %px. %px is
+functionally equivalent to %lx. %px is preferred to %lx because it is more
+uniquely grep'able. If, in the future, we need to modify the way the Kernel
+handles printing pointers it will be nice to be able to find the call
+sites.
+
 Struct Resources
 ================
 
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index b920423f88cb..5025ff9307e6 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -158,10 +158,6 @@ Note: the minimum value allowed for dirty_bytes is two pages (in bytes); any
 value lower than this limit will be ignored and the old configuration will be
 retained.
 
-Note: the value of dirty_bytes also must be set greater than
-dirty_background_bytes or the amount of memory corresponding to
-dirty_background_ratio.
-
 ==============================================================
 
 dirty_expire_centisecs
@@ -181,9 +177,6 @@ generating disk writes will itself start writing out dirty data.
 
 The total available memory is not equal to total system memory.
 
-Note: dirty_ratio must be set greater than dirty_background_ratio or
-ratio corresponding to dirty_background_bytes.
-
 ==============================================================
 
 dirty_writeback_centisecs