---

yaml
---
r: 288670
b: refs/heads/master
c: ac483c4
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d1e169da9e20efc0762da6ec160dd7740d0103f5
+refs/heads/master: ac483c446b67870444c9eeaf8325d3d2af9b91bc

trunk/Documentation/DocBook/device-drivers.tmpl

@@ -102,12 +102,9 @@ X!Iinclude/linux/kobject.h
 !Iinclude/linux/device.h
      </sect1>
      <sect1><title>Device Drivers Base</title>
-!Idrivers/base/init.c
 !Edrivers/base/driver.c
 !Edrivers/base/core.c
-!Edrivers/base/syscore.c
 !Edrivers/base/class.c
-!Idrivers/base/node.c
 !Edrivers/base/firmware_class.c
 !Edrivers/base/transport_class.c
 <!-- Cannot be included, because
@@ -116,18 +113,13 @@ X!Iinclude/linux/kobject.h
      exceed allowed 44 characters maximum
 X!Edrivers/base/attribute_container.c
 -->
-!Edrivers/base/dd.c
+!Edrivers/base/sys.c
 <!--
 X!Edrivers/base/interface.c
 -->
 !Iinclude/linux/platform_device.h
 !Edrivers/base/platform.c
 !Edrivers/base/bus.c
-     </sect1>
-     <sect1><title>Device Drivers DMA Management</title>
-!Edrivers/base/dma-buf.c
-!Edrivers/base/dma-coherent.c
-!Edrivers/base/dma-mapping.c
      </sect1>
      <sect1><title>Device Drivers Power Management</title>
 !Edrivers/base/power/main.c
@@ -227,7 +219,7 @@ X!Isound/sound_firmware.c
   <chapter id="uart16x50">
      <title>16x50 UART Driver</title>
 !Edrivers/tty/serial/serial_core.c
-!Edrivers/tty/serial/8250/8250.c
+!Edrivers/tty/serial/8250.c
   </chapter>
 
   <chapter id="fbdev">

trunk/Documentation/driver-model/devres.txt

@@ -233,10 +233,6 @@ certainly invest a bit more effort into libata core layer).
   6. List of managed interfaces
   -----------------------------
 
-MEM
-  devm_kzalloc()
-  devm_kfree()
-
 IO region
   devm_request_region()
   devm_request_mem_region()

trunk/Documentation/feature-removal-schedule.txt

@@ -510,17 +510,3 @@ Why:	The pci_scan_bus_parented() interface creates a new root bus.  The
 	convert to using pci_scan_root_bus() so they can supply a list of
 	bus resources when the bus is created.
 Who:	Bjorn Helgaas <bhelgaas@google.com>
-
-----------------------------
-
-What:	The CAP9 SoC family will be removed
-When:	3.4
-Files:	arch/arm/mach-at91/at91cap9.c
-	arch/arm/mach-at91/at91cap9_devices.c
-	arch/arm/mach-at91/include/mach/at91cap9.h
-	arch/arm/mach-at91/include/mach/at91cap9_matrix.h
-	arch/arm/mach-at91/include/mach/at91cap9_ddrsdr.h
-	arch/arm/mach-at91/board-cap9adk.c
-Why:	The code is not actively maintained and platforms are now hard to find.
-Who:	Nicolas Ferre <nicolas.ferre@atmel.com>
-	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

trunk/Documentation/nmi_watchdog.txt

@@ -0,0 +1,83 @@
+
+[NMI watchdog is available for x86 and x86-64 architectures]
+
+Is your system locking up unpredictably? No keyboard activity, just
+a frustrating complete hard lockup? Do you want to help us debugging
+such lockups? If all yes then this document is definitely for you.
+
+On many x86/x86-64 type hardware there is a feature that enables
+us to generate 'watchdog NMI interrupts'.  (NMI: Non Maskable Interrupt
+which get executed even if the system is otherwise locked up hard).
+This can be used to debug hard kernel lockups.  By executing periodic
+NMI interrupts, the kernel can monitor whether any CPU has locked up,
+and print out debugging messages if so.
+
+In order to use the NMI watchdog, you need to have APIC support in your
+kernel. For SMP kernels, APIC support gets compiled in automatically. For
+UP, enable either CONFIG_X86_UP_APIC (Processor type and features -> Local
+APIC support on uniprocessors) or CONFIG_X86_UP_IOAPIC (Processor type and
+features -> IO-APIC support on uniprocessors) in your kernel config.
+CONFIG_X86_UP_APIC is for uniprocessor machines without an IO-APIC.
+CONFIG_X86_UP_IOAPIC is for uniprocessor with an IO-APIC. [Note: certain
+kernel debugging options, such as Kernel Stack Meter or Kernel Tracer,
+may implicitly disable the NMI watchdog.]
+
+For x86-64, the needed APIC is always compiled in.
+
+Using local APIC (nmi_watchdog=2) needs the first performance register, so
+you can't use it for other purposes (such as high precision performance
+profiling.) However, at least oprofile and the perfctr driver disable the
+local APIC NMI watchdog automatically.
+
+To actually enable the NMI watchdog, use the 'nmi_watchdog=N' boot
+parameter.  Eg. the relevant lilo.conf entry:
+
+        append="nmi_watchdog=1"
+
+For SMP machines and UP machines with an IO-APIC use nmi_watchdog=1.
+For UP machines without an IO-APIC use nmi_watchdog=2, this only works
+for some processor types.  If in doubt, boot with nmi_watchdog=1 and
+check the NMI count in /proc/interrupts; if the count is zero then
+reboot with nmi_watchdog=2 and check the NMI count.  If it is still
+zero then log a problem, you probably have a processor that needs to be
+added to the nmi code.
+
+A 'lockup' is the following scenario: if any CPU in the system does not
+execute the period local timer interrupt for more than 5 seconds, then
+the NMI handler generates an oops and kills the process. This
+'controlled crash' (and the resulting kernel messages) can be used to
+debug the lockup. Thus whenever the lockup happens, wait 5 seconds and
+the oops will show up automatically. If the kernel produces no messages
+then the system has crashed so hard (eg. hardware-wise) that either it
+cannot even accept NMI interrupts, or the crash has made the kernel
+unable to print messages.
+
+Be aware that when using local APIC, the frequency of NMI interrupts
+it generates, depends on the system load. The local APIC NMI watchdog,
+lacking a better source, uses the "cycles unhalted" event. As you may
+guess it doesn't tick when the CPU is in the halted state (which happens
+when the system is idle), but if your system locks up on anything but the
+"hlt" processor instruction, the watchdog will trigger very soon as the
+"cycles unhalted" event will happen every clock tick. If it locks up on
+"hlt", then you are out of luck -- the event will not happen at all and the
+watchdog won't trigger. This is a shortcoming of the local APIC watchdog
+-- unfortunately there is no "clock ticks" event that would work all the
+time. The I/O APIC watchdog is driven externally and has no such shortcoming.
+But its NMI frequency is much higher, resulting in a more significant hit
+to the overall system performance.
+
+On x86 nmi_watchdog is disabled by default so you have to enable it with
+a boot time parameter.
+
+It's possible to disable the NMI watchdog in run-time by writing "0" to
+/proc/sys/kernel/nmi_watchdog. Writing "1" to the same file will re-enable
+the NMI watchdog. Notice that you still need to use "nmi_watchdog=" parameter
+at boot time.
+
+NOTE: In kernels prior to 2.4.2-ac18 the NMI-oopser is enabled unconditionally
+on x86 SMP boxes.
+
+[ feel free to send bug reports, suggestions and patches to
+  Ingo Molnar <mingo@redhat.com> or the Linux SMP mailing
+  list at <linux-smp@vger.kernel.org> ]
+

trunk/Documentation/pinctrl.txt

@@ -857,41 +857,42 @@ case), we define a mapping like this:
 
 ...
 {
-	.name = "2bit"
+	.name "2bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_1_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
-	.name = "4bit"
+	.name "4bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_1_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
-	.name = "4bit"
+	.name "4bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_2_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
-	.name = "8bit"
+	.name "8bit"
 	.ctrl_dev_name = "pinctrl-foo",
+	.function = "mmc0",
 	.group = "mmc0_1_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
-	.name = "8bit"
+	.name "8bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_2_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
-	.name = "8bit"
+	.name "8bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_3_grp",
@@ -994,7 +995,7 @@ This is enabled by simply setting the .hog_on_boot field in the map to true,
 like this:
 
 {
-	.name = "POWERMAP"
+	.name "POWERMAP"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "power_func",
 	.hog_on_boot = true,
@@ -1024,7 +1025,7 @@ it, disables and releases it, and muxes it in on the pins defined by group B:
 
 foo_switch()
 {
-	struct pinmux *pmx;
+	struct pinmux pmx;
 
 	/* Enable on position A */
 	pmx = pinmux_get(&device, "spi0-pos-A");

trunk/Documentation/stable_kernel_rules.txt

@@ -25,8 +25,7 @@ Procedure for submitting patches to the -stable tree:
 
  - Send the patch, after verifying that it follows the above rules, to
    stable@vger.kernel.org.  You must note the upstream commit ID in the
-   changelog of your submission, as well as the kernel version you wish
-   it to be applied to.
+   changelog of your submission.
  - To have the patch automatically included in the stable tree, add the tag
      Cc: stable@vger.kernel.org
    in the sign-off area. Once the patch is merged it will be applied to

trunk/Documentation/virtual/00-INDEX

@@ -4,6 +4,8 @@ Virtualization support in the Linux kernel.
 	- this file.
 kvm/
 	- Kernel Virtual Machine.  See also http://linux-kvm.org
+lguest/
+	- Extremely simple hypervisor for experimental/educational use.
 uml/
 	- User Mode Linux, builds/runs Linux kernel as a userspace program.
 virtio.txt