---

yaml
---
r: 313358
b: refs/heads/master
c: f9ed561
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4f2d658b2f09c41677871a4285a09cf35f954dad
+refs/heads/master: f9ed561ebd71f7a9a3238507ef9082862e2cbc9a

trunk/Documentation/ABI/testing/sysfs-power

@@ -231,16 +231,3 @@ Description:
 		Reads from this file return a string consisting of the names of
 		wakeup sources created with the help of /sys/power/wake_lock
 		that are inactive at the moment, separated with spaces.
-
-What:		/sys/power/pm_print_times
-Date:		May 2012
-Contact:	Sameer Nanda <snanda@chromium.org>
-Description:
-		The /sys/power/pm_print_times file allows user space to
-		control whether the time taken by devices to suspend and
-		resume is printed.  These prints are useful for hunting down
-		devices that take too long to suspend or resume.
-
-		Writing a "1" enables this printing while writing a "0"
-		disables it.  The default value is "0".  Reading from this file
-		will display the current value.

trunk/Documentation/RCU/checklist.txt

@@ -162,9 +162,9 @@ over a rather long period of time, but improvements are always welcome!
 		when publicizing a pointer to a structure that can
 		be traversed by an RCU read-side critical section.
 
-5.	If call_rcu(), or a related primitive such as call_rcu_bh(),
-	call_rcu_sched(), or call_srcu() is used, the callback function
-	must be written to be called from softirq context.  In particular,
+5.	If call_rcu(), or a related primitive such as call_rcu_bh() or
+	call_rcu_sched(), is used, the callback function must be
+	written to be called from softirq context.  In particular,
 	it cannot block.
 
 6.	Since synchronize_rcu() can block, it cannot be called from
@@ -202,12 +202,11 @@ over a rather long period of time, but improvements are always welcome!
 	updater uses call_rcu_sched() or synchronize_sched(), then
 	the corresponding readers must disable preemption, possibly
 	by calling rcu_read_lock_sched() and rcu_read_unlock_sched().
-	If the updater uses synchronize_srcu() or call_srcu(),
-	the the corresponding readers must use srcu_read_lock() and
-	srcu_read_unlock(), and with the same srcu_struct.  The rules for
-	the expedited primitives are the same as for their non-expedited
-	counterparts.  Mixing things up will result in confusion and
-	broken kernels.
+	If the updater uses synchronize_srcu(), the the corresponding
+	readers must use srcu_read_lock() and srcu_read_unlock(),
+	and with the same srcu_struct.	The rules for the expedited
+	primitives are the same as for their non-expedited counterparts.
+	Mixing things up will result in confusion and broken kernels.
 
 	One exception to this rule: rcu_read_lock() and rcu_read_unlock()
 	may be substituted for rcu_read_lock_bh() and rcu_read_unlock_bh()
@@ -334,14 +333,14 @@ over a rather long period of time, but improvements are always welcome!
 	victim CPU from ever going offline.)
 
 14.	SRCU (srcu_read_lock(), srcu_read_unlock(), srcu_dereference(),
-	synchronize_srcu(), synchronize_srcu_expedited(), and call_srcu())
-	may only be invoked from process context.  Unlike other forms of
-	RCU, it -is- permissible to block in an SRCU read-side critical
-	section (demarked by srcu_read_lock() and srcu_read_unlock()),
-	hence the "SRCU": "sleepable RCU".  Please note that if you
-	don't need to sleep in read-side critical sections, you should be
-	using RCU rather than SRCU, because RCU is almost always faster
-	and easier to use than is SRCU.
+	synchronize_srcu(), and synchronize_srcu_expedited()) may only
+	be invoked from process context.  Unlike other forms of RCU, it
+	-is- permissible to block in an SRCU read-side critical section
+	(demarked by srcu_read_lock() and srcu_read_unlock()), hence the
+	"SRCU": "sleepable RCU".  Please note that if you don't need
+	to sleep in read-side critical sections, you should be using
+	RCU rather than SRCU, because RCU is almost always faster and
+	easier to use than is SRCU.
 
 	If you need to enter your read-side critical section in a
 	hardirq or exception handler, and then exit that same read-side
@@ -354,8 +353,8 @@ over a rather long period of time, but improvements are always welcome!
 	cleanup_srcu_struct().	These are passed a "struct srcu_struct"
 	that defines the scope of a given SRCU domain.	Once initialized,
 	the srcu_struct is passed to srcu_read_lock(), srcu_read_unlock()
-	synchronize_srcu(), synchronize_srcu_expedited(), and call_srcu().
-	A given synchronize_srcu() waits only for SRCU read-side critical
+	synchronize_srcu(), and synchronize_srcu_expedited().  A given
+	synchronize_srcu() waits only for SRCU read-side critical
 	sections governed by srcu_read_lock() and srcu_read_unlock()
 	calls that have been passed the same srcu_struct.  This property
 	is what makes sleeping read-side critical sections tolerable --
@@ -375,7 +374,7 @@ over a rather long period of time, but improvements are always welcome!
 	requiring SRCU's read-side deadlock immunity or low read-side
 	realtime latency.
 
-	Note that, rcu_assign_pointer() relates to SRCU just as it does
+	Note that, rcu_assign_pointer() relates to SRCU just as they do
 	to other forms of RCU.
 
 15.	The whole point of call_rcu(), synchronize_rcu(), and friends

trunk/Documentation/RCU/rcubarrier.txt

@@ -79,6 +79,8 @@ complete. Pseudo-code using rcu_barrier() is as follows:
    2. Execute rcu_barrier().
    3. Allow the module to be unloaded.
 
+Quick Quiz #1: Why is there no srcu_barrier()?
+
 The rcutorture module makes use of rcu_barrier in its exit function
 as follows:
 
@@ -160,7 +162,7 @@ for any pre-existing callbacks to complete.
 Then lines 55-62 print status and do operation-specific cleanup, and
 then return, permitting the module-unload operation to be completed.
 
-Quick Quiz #1: Is there any other situation where rcu_barrier() might
+Quick Quiz #2: Is there any other situation where rcu_barrier() might
 	be required?
 
 Your module might have additional complications. For example, if your
@@ -240,7 +242,7 @@ reaches zero, as follows:
  4 complete(&rcu_barrier_completion);
  5 }
 
-Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
+Quick Quiz #3: What happens if CPU 0's rcu_barrier_func() executes
 	immediately (thus incrementing rcu_barrier_cpu_count to the
 	value one), but the other CPU's rcu_barrier_func() invocations
 	are delayed for a full grace period? Couldn't this result in
@@ -257,7 +259,12 @@ so that your module may be safely unloaded.
 
 Answers to Quick Quizzes
 
-Quick Quiz #1: Is there any other situation where rcu_barrier() might
+Quick Quiz #1: Why is there no srcu_barrier()?
+
+Answer: Since there is no call_srcu(), there can be no outstanding SRCU
+	callbacks. Therefore, there is no need to wait for them.
+
+Quick Quiz #2: Is there any other situation where rcu_barrier() might
 	be required?
 
 Answer: Interestingly enough, rcu_barrier() was not originally
@@ -271,7 +278,7 @@ Answer: Interestingly enough, rcu_barrier() was not originally
 	implementing rcutorture, and found that rcu_barrier() solves
 	this problem as well.
 
-Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
+Quick Quiz #3: What happens if CPU 0's rcu_barrier_func() executes
 	immediately (thus incrementing rcu_barrier_cpu_count to the
 	value one), but the other CPU's rcu_barrier_func() invocations
 	are delayed for a full grace period? Couldn't this result in

trunk/Documentation/RCU/torture.txt

@@ -174,20 +174,11 @@ torture_type	The type of RCU to test, with string values as follows:
 			and synchronize_rcu_bh_expedited().
 
 		"srcu": srcu_read_lock(), srcu_read_unlock() and
-			call_srcu().
-
-		"srcu_sync": srcu_read_lock(), srcu_read_unlock() and
 			synchronize_srcu().
 
 		"srcu_expedited": srcu_read_lock(), srcu_read_unlock() and
 			synchronize_srcu_expedited().
 
-		"srcu_raw": srcu_read_lock_raw(), srcu_read_unlock_raw(),
-			and call_srcu().
-
-		"srcu_raw_sync": srcu_read_lock_raw(), srcu_read_unlock_raw(),
-			and synchronize_srcu().
-
 		"sched": preempt_disable(), preempt_enable(), and
 			call_rcu_sched().
 

trunk/Documentation/RCU/whatisRCU.txt

@@ -833,9 +833,9 @@ sched:	Critical sections	Grace period		Barrier
 
 SRCU:	Critical sections	Grace period		Barrier
 
-	srcu_read_lock		synchronize_srcu	srcu_barrier
-	srcu_read_unlock	call_srcu
-	srcu_read_lock_raw	synchronize_srcu_expedited
+	srcu_read_lock		synchronize_srcu	N/A
+	srcu_read_unlock	synchronize_srcu_expedited
+	srcu_read_lock_raw
 	srcu_read_unlock_raw
 	srcu_dereference
 

trunk/Documentation/devicetree/bindings/arm/atmel-aic.txt

@@ -4,7 +4,7 @@ Required properties:
 - compatible: Should be "atmel,<chip>-aic"
 - interrupt-controller: Identifies the node as an interrupt controller.
 - interrupt-parent: For single AIC system, it is an empty property.
-- #interrupt-cells: The number of cells to define the interrupts. It sould be 3.
+- #interrupt-cells: The number of cells to define the interrupts. It sould be 2.
   The first cell is the IRQ number (aka "Peripheral IDentifier" on datasheet).
   The second cell is used to specify flags:
     bits[3:0] trigger type and level flags:
@@ -14,10 +14,7 @@ Required properties:
       8 = active low level-sensitive.
       Valid combinations are 1, 2, 3, 4, 8.
       Default flag for internal sources should be set to 4 (active high).
-  The third cell is used to specify the irq priority from 0 (lowest) to 7
-  (highest).
 - reg: Should contain AIC registers location and length
-- atmel,external-irqs: u32 array of external irqs.
 
 Examples:
 	/*
@@ -27,7 +24,7 @@ Examples:
 		compatible = "atmel,at91rm9200-aic";
 		interrupt-controller;
 		interrupt-parent;
-		#interrupt-cells = <3>;
+		#interrupt-cells = <2>;
 		reg = <0xfffff000 0x200>;
 	};
 
@@ -37,5 +34,5 @@ Examples:
 	dma: dma-controller@ffffec00 {
 		compatible = "atmel,at91sam9g45-dma";
 		reg = <0xffffec00 0x200>;
-		interrupts = <21 4 5>;
+		interrupts = <21 4>;
 	};

trunk/Documentation/devicetree/bindings/arm/omap/omap.txt

@@ -47,6 +47,3 @@ Boards:
 
 - AM335X EVM : Software Developement Board for AM335x
   compatible = "ti,am335x-evm", "ti,am33xx", "ti,omap3"
-
-- AM335X Bone : Low cost community board
-  compatible = "ti,am335x-bone", "ti,am33xx", "ti,omap3"

trunk/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-emc.txt → trunk/Documentation/devicetree/bindings/arm/tegra/emc.txt

@@ -15,7 +15,7 @@ Child device nodes describe the memory settings for different configurations and
 
 Example:
 
-	memory-controller@7000f400 {
+	emc@7000f400 {
 		#address-cells = < 1 >;
 		#size-cells = < 0 >;
 		compatible = "nvidia,tegra20-emc";

trunk/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt

@@ -8,7 +8,7 @@ Required properties:
 - interrupts : Should contain MC General interrupt.
 
 Example:
-	memory-controller@0x7000f000 {
+	mc {
 		compatible = "nvidia,tegra20-mc";
 		reg = <0x7000f000 0x024
 		       0x7000f03c 0x3c4>;

trunk/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-mc.txt

@@ -8,7 +8,7 @@ Required properties:
 - interrupts : Should contain MC General interrupt.
 
 Example:
-	memory-controller {
+	mc {
 		compatible = "nvidia,tegra30-mc";
 		reg = <0x7000f000 0x010
 		       0x7000f03c 0x1b4

trunk/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt

@@ -8,16 +8,8 @@ Required properties:
   by low 16 pins and the second one is for high 16 pins.
 - gpio-controller : Marks the device node as a gpio controller.
 - #gpio-cells : Should be two.  The first cell is the pin number and
-  the second cell is used to specify the gpio polarity:
-      0 = active high
-      1 = active low
-- interrupt-controller: Marks the device node as an interrupt controller.
-- #interrupt-cells : Should be 2.  The first cell is the GPIO number.
-  The second cell bits[3:0] is used to specify trigger type and level flags:
-      1 = low-to-high edge triggered.
-      2 = high-to-low edge triggered.
-      4 = active high level-sensitive.
-      8 = active low level-sensitive.
+  the second cell is used to specify optional parameters (currently
+  unused).
 
 Example:
 
@@ -27,6 +19,4 @@ gpio0: gpio@73f84000 {
 	interrupts = <50 51>;
 	gpio-controller;
 	#gpio-cells = <2>;
-	interrupt-controller;
-	#interrupt-cells = <2>;
 };

trunk/Documentation/devicetree/bindings/gpio/gpio-mxs.txt

@@ -13,9 +13,8 @@ Required properties for GPIO node:
 - interrupts : Should be the port interrupt shared by all 32 pins.
 - gpio-controller : Marks the device node as a gpio controller.
 - #gpio-cells : Should be two.  The first cell is the pin number and
-  the second cell is used to specify the gpio polarity:
-      0 = active high
-      1 = active low
+  the second cell is used to specify optional parameters (currently
+  unused).
 - interrupt-controller: Marks the device node as an interrupt controller.
 - #interrupt-cells : Should be 2.  The first cell is the GPIO number.
   The second cell bits[3:0] is used to specify trigger type and level flags:

trunk/Documentation/devicetree/bindings/gpio/gpio-nmk.txt

@@ -26,6 +26,6 @@ Example:
                         #gpio-cells = <2>;
                         gpio-controller;
                         interrupt-controller;
-                        st,supports-sleepmode;
+                        supports-sleepmode;
                         gpio-bank = <1>;
                 };