890 files changed, 11471 insertions, 5474 deletions

diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index ecd35e9d4410..feca0758391e 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -46,7 +46,6 @@
 
      <sect1><title>Atomic and pointer manipulation</title>
 !Iarch/x86/include/asm/atomic.h
-!Iarch/x86/include/asm/unaligned.h
      </sect1>
 
      <sect1><title>Delaying, scheduling, and timer routines</title>
diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl
index a20c6f6fffc3..6899f471fb15 100644
--- a/Documentation/DocBook/kernel-api.tmpl
+++ b/Documentation/DocBook/kernel-api.tmpl
@@ -57,7 +57,6 @@
      </para>
 
      <sect1><title>String Conversions</title>
-!Ilib/vsprintf.c
 !Elib/vsprintf.c
      </sect1>
      <sect1><title>String Manipulation</title>
diff --git a/Documentation/DocBook/kernel-locking.tmpl b/Documentation/DocBook/kernel-locking.tmpl
index 0b1a3f97f285..a0d479d1e1dd 100644
--- a/Documentation/DocBook/kernel-locking.tmpl
+++ b/Documentation/DocBook/kernel-locking.tmpl
@@ -1961,6 +1961,12 @@ machines due to caching.
    </sect1>
   </chapter>
 
+  <chapter id="apiref">
+   <title>Mutex API reference</title>
+!Iinclude/linux/mutex.h
+!Ekernel/mutex.c
+  </chapter>
+
   <chapter id="references">
    <title>Further reading</title>
 
diff --git a/Documentation/DocBook/tracepoint.tmpl b/Documentation/DocBook/tracepoint.tmpl
index e8473eae2a20..b57a9ede3224 100644
--- a/Documentation/DocBook/tracepoint.tmpl
+++ b/Documentation/DocBook/tracepoint.tmpl
@@ -104,4 +104,9 @@
    <title>Block IO</title>
 !Iinclude/trace/events/block.h
   </chapter>
+
+  <chapter id="workqueue">
+   <title>Workqueue</title>
+!Iinclude/trace/events/workqueue.h
+  </chapter>
 </book>
diff --git a/Documentation/block/cfq-iosched.txt b/Documentation/block/cfq-iosched.txt
new file mode 100644
index 000000000000..e578feed6d81
--- /dev/null
+++ b/Documentation/block/cfq-iosched.txt
@@ -0,0 +1,45 @@
+CFQ ioscheduler tunables
+========================
+
+slice_idle
+----------
+This specifies how long CFQ should idle for next request on certain cfq queues
+(for sequential workloads) and service trees (for random workloads) before
+queue is expired and CFQ selects next queue to dispatch from.
+
+By default slice_idle is a non-zero value. That means by default we idle on
+queues/service trees. This can be very helpful on highly seeky media like
+single spindle SATA/SAS disks where we can cut down on overall number of
+seeks and see improved throughput.
+
+Setting slice_idle to 0 will remove all the idling on queues/service tree
+level and one should see an overall improved throughput on faster storage
+devices like multiple SATA/SAS disks in hardware RAID configuration. The down
+side is that isolation provided from WRITES also goes down and notion of
+IO priority becomes weaker.
+
+So depending on storage and workload, it might be useful to set slice_idle=0.
+In general I think for SATA/SAS disks and software RAID of SATA/SAS disks
+keeping slice_idle enabled should be useful. For any configurations where
+there are multiple spindles behind single LUN (Host based hardware RAID
+controller or for storage arrays), setting slice_idle=0 might end up in better
+throughput and acceptable latencies.
+
+CFQ IOPS Mode for group scheduling
+===================================
+Basic CFQ design is to provide priority based time slices. Higher priority
+process gets bigger time slice and lower priority process gets smaller time
+slice. Measuring time becomes harder if storage is fast and supports NCQ and
+it would be better to dispatch multiple requests from multiple cfq queues in
+request queue at a time. In such scenario, it is not possible to measure time
+consumed by single queue accurately.
+
+What is possible though is to measure number of requests dispatched from a
+single queue and also allow dispatch from multiple cfq queue at the same time.
+This effectively becomes the fairness in terms of IOPS (IO operations per
+second).
+
+If one sets slice_idle=0 and if storage supports NCQ, CFQ internally switches
+to IOPS mode and starts providing fairness in terms of number of requests
+dispatched. Note that this mode switching takes effect only for group
+scheduling. For non-cgroup users nothing should change.
diff --git a/Documentation/cgroups/blkio-controller.txt b/Documentation/cgroups/blkio-controller.txt
index 48e0b21b0059..6919d62591d9 100644
--- a/Documentation/cgroups/blkio-controller.txt
+++ b/Documentation/cgroups/blkio-controller.txt
@@ -217,6 +217,7 @@ Details of cgroup files
 CFQ sysfs tunable
 =================
 /sys/block/<disk>/queue/iosched/group_isolation
+-----------------------------------------------
 
 If group_isolation=1, it provides stronger isolation between groups at the
 expense of throughput. By default group_isolation is 0. In general that
@@ -243,6 +244,33 @@ By default one should run with group_isolation=0. If that is not sufficient
 and one wants stronger isolation between groups, then set group_isolation=1
 but this will come at cost of reduced throughput.
 
+/sys/block/<disk>/queue/iosched/slice_idle
+------------------------------------------
+On a faster hardware CFQ can be slow, especially with sequential workload.
+This happens because CFQ idles on a single queue and single queue might not
+drive deeper request queue depths to keep the storage busy. In such scenarios
+one can try setting slice_idle=0 and that would switch CFQ to IOPS
+(IO operations per second) mode on NCQ supporting hardware.
+
+That means CFQ will not idle between cfq queues of a cfq group and hence be
+able to driver higher queue depth and achieve better throughput. That also
+means that cfq provides fairness among groups in terms of IOPS and not in
+terms of disk time.
+
+/sys/block/<disk>/queue/iosched/group_idle
+------------------------------------------
+If one disables idling on individual cfq queues and cfq service trees by
+setting slice_idle=0, group_idle kicks in. That means CFQ will still idle
+on the group in an attempt to provide fairness among groups.
+
+By default group_idle is same as slice_idle and does not do anything if
+slice_idle is enabled.
+
+One can experience an overall throughput drop if you have created multiple
+groups and put applications in that group which are not driving enough
+IO to keep disk busy. In that case set group_idle=0, and CFQ will not idle
+on individual groups and throughput should improve.
+
 What works
 ==========
 - Currently only sync IO queues are support. All the buffered writes are
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt
index d96a6dba5748..9633da01ff46 100644
--- a/Documentation/gpio.txt
+++ b/Documentation/gpio.txt
@@ -109,17 +109,19 @@ use numbers 2000-2063 to identify GPIOs in a bank of I2C GPIO expanders.
 
 If you want to initialize a structure with an invalid GPIO number, use
 some negative number (perhaps "-EINVAL"); that will never be valid.  To
-test if a number could reference a GPIO, you may use this predicate:
+test if such number from such a structure could reference a GPIO, you
+may use this predicate:
 
         int gpio_is_valid(int number);
 
 A number that's not valid will be rejected by calls which may request
 or free GPIOs (see below).  Other numbers may also be rejected; for
-example, a number might be valid but unused on a given board.
-
-Whether a platform supports multiple GPIO controllers is currently a
-platform-specific implementation issue.
+example, a number might be valid but temporarily unused on a given board.
 
+Whether a platform supports multiple GPIO controllers is a platform-specific
+implementation issue, as are whether that support can leave "holes" in the space
+of GPIO numbers, and whether new controllers can be added at runtime.  Such issues
+can affect things including whether adjacent GPIO numbers are both valid.
 
 Using GPIOs
 -----------
@@ -480,12 +482,16 @@ To support this framework, a platform's Kconfig will "select" either
 ARCH_REQUIRE_GPIOLIB or ARCH_WANT_OPTIONAL_GPIOLIB
 and arrange that its <asm/gpio.h> includes <asm-generic/gpio.h> and defines
 three functions: gpio_get_value(), gpio_set_value(), and gpio_cansleep().
-They may also want to provide a custom value for ARCH_NR_GPIOS.
 
-ARCH_REQUIRE_GPIOLIB means that the gpio-lib code will always get compiled
+It may also provide a custom value for ARCH_NR_GPIOS, so that it better
+reflects the number of GPIOs in actual use on that platform, without
+wasting static table space.  (It should count both built-in/SoC GPIOs and
+also ones on GPIO expanders.
+
+ARCH_REQUIRE_GPIOLIB means that the gpiolib code will always get compiled
 into the kernel on that architecture.
 
-ARCH_WANT_OPTIONAL_GPIOLIB means the gpio-lib code defaults to off and the user
+ARCH_WANT_OPTIONAL_GPIOLIB means the gpiolib code defaults to off and the user
 can enable it and build it into the kernel optionally.
 
 If neither of these options are selected, the platform does not support
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index ff45d1f837c8..48ceabedf55d 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -91,12 +91,11 @@ name		The chip name.
                 I2C devices get this attribute created automatically.
                 RO
 
-update_rate     The rate at which the chip will update readings.
+update_interval The interval at which the chip will update readings.
                 Unit: millisecond
                 RW
-                Some devices have a variable update rate. This attribute
-                can be used to change the update rate to the desired
-                frequency.
+                Some devices have a variable update rate or interval.
+                This attribute can be used to change it to the desired value.
 
 
 ************
diff --git a/Documentation/kernel-doc-nano-HOWTO.txt b/Documentation/kernel-doc-nano-HOWTO.txt
index 27a52b35d55b..3d8a97747f77 100644
--- a/Documentation/kernel-doc-nano-HOWTO.txt
+++ b/Documentation/kernel-doc-nano-HOWTO.txt
@@ -345,5 +345,10 @@ documentation, in <filename>, for the functions listed.
 section titled <section title> from <filename>.
 Spaces are allowed in <section title>; do not quote the <section title>.
 
+!C<filename> is replaced by nothing, but makes the tools check that
+all DOC: sections and documented functions, symbols, etc. are used.
+This makes sense to use when you use !F/!P only and want to verify
+that all documentation is included.
+
 Tim.
 */ <twaugh@redhat.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f084af0cb8e0..8dd7248508a9 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1974,15 +1974,18 @@ and is between 256 and 4096 characters. It is defined in the file
                 force   Enable ASPM even on devices that claim not to support it.
                         WARNING: Forcing ASPM on may cause system lockups.
 
+        pcie_ports=     [PCIE] PCIe ports handling:
+                auto    Ask the BIOS whether or not to use native PCIe services
+                        associated with PCIe ports (PME, hot-plug, AER).  Use
+                        them only if that is allowed by the BIOS.
+                native  Use native PCIe services associated with PCIe ports
+                        unconditionally.
+                compat  Treat PCIe ports as PCI-to-PCI bridges, disable the PCIe
+                        ports driver.
+
         pcie_pme=       [PCIE,PM] Native PCIe PME signaling options:
-                        Format: {auto|force}[,nomsi]
-                auto    Use native PCIe PME signaling if the BIOS allows the
-                        kernel to control PCIe config registers of root ports.
-                force   Use native PCIe PME signaling even if the BIOS refuses
-                        to allow the kernel to control the relevant PCIe config
-                        registers.
                 nomsi   Do not use MSI for native PCIe PME signaling (this makes
-                        all PCIe root ports use INTx for everything).
+                        all PCIe root ports use INTx for all services).
 
         pcmv=           [HW,PCMCIA] BadgePAD 4
 
diff --git a/Documentation/mutex-design.txt b/Documentation/mutex-design.txt
index c91ccc0720fa..38c10fd7f411 100644
--- a/Documentation/mutex-design.txt
+++ b/Documentation/mutex-design.txt
@@ -9,7 +9,7 @@ firstly, there's nothing wrong with semaphores. But if the simpler
 mutex semantics are sufficient for your code, then there are a couple
 of advantages of mutexes:
 
- - 'struct mutex' is smaller on most architectures: .e.g on x86,
+ - 'struct mutex' is smaller on most architectures: E.g. on x86,
    'struct semaphore' is 20 bytes, 'struct mutex' is 16 bytes.
    A smaller structure size means less RAM footprint, and better
    CPU-cache utilization.
@@ -136,3 +136,4 @@ the APIs of 'struct mutex' have been streamlined:
  void mutex_lock_nested(struct mutex *lock, unsigned int subclass);
  int  mutex_lock_interruptible_nested(struct mutex *lock,
                                       unsigned int subclass);
+ int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
diff --git a/Documentation/power/regulator/overview.txt b/Documentation/power/regulator/overview.txt
index 9363e056188a..8ed17587a74b 100644
--- a/Documentation/power/regulator/overview.txt
+++ b/Documentation/power/regulator/overview.txt
@@ -13,7 +13,7 @@ regulators (where voltage output is controllable) and current sinks (where
 current limit is controllable).
 
 (C) 2008  Wolfson Microelectronics PLC.
-Author: Liam Girdwood <lg@opensource.wolfsonmicro.com>
+Author: Liam Girdwood <lrg@slimlogic.co.uk>
 
 
 Nomenclature
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index ce46fa1e643e..37c6aad5e590 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -296,6 +296,7 @@ Conexant 5051
 Conexant 5066
 =============
   laptop        Basic Laptop config (default)
+  hp-laptop     HP laptops, e g G60
   dell-laptop   Dell laptops
   dell-vostro   Dell Vostro
   olpc-xo-1_5   OLPC XO 1.5
diff --git a/Documentation/workqueue.txt b/Documentation/workqueue.txt
new file mode 100644
index 000000000000..e4498a2872c3
--- /dev/null
+++ b/Documentation/workqueue.txt
@@ -0,0 +1,380 @@
+
+Concurrency Managed Workqueue (cmwq)
+
+September, 2010         Tejun Heo <tj@kernel.org>
+                        Florian Mickler <florian@mickler.org>
+
+CONTENTS
+
+1. Introduction
+2. Why cmwq?
+3. The Design
+4. Application Programming Interface (API)
+5. Example Execution Scenarios
+6. Guidelines
+
+
+1. Introduction
+
+There are many cases where an asynchronous process execution context
+is needed and the workqueue (wq) API is the most commonly used
+mechanism for such cases.
+
+When such an asynchronous execution context is needed, a work item
+describing which function to execute is put on a queue.  An
+independent thread serves as the asynchronous execution context.  The
+queue is called workqueue and the thread is called worker.
+
+While there are work items on the workqueue the worker executes the
+functions associated with the work items one after the other.  When
+there is no work item left on the workqueue the worker becomes idle.
+When a new work item gets queued, the worker begins executing again.
+
+
+2. Why cmwq?
+
+In the original wq implementation, a multi threaded (MT) wq had one
+worker thread per CPU and a single threaded (ST) wq had one worker
+thread system-wide.  A single MT wq needed to keep around the same
+number of workers as the number of CPUs.  The kernel grew a lot of MT
+wq users over the years and with the number of CPU cores continuously
+rising, some systems saturated the default 32k PID space just booting
+up.
+
+Although MT wq wasted a lot of resource, the level of concurrency
+provided was unsatisfactory.  The limitation was common to both ST and
+MT wq albeit less severe on MT.  Each wq maintained its own separate
+worker pool.  A MT wq could provide only one execution context per CPU
+while a ST wq one for the whole system.  Work items had to compete for
+those very limited execution contexts leading to various problems
+including proneness to deadlocks around the single execution context.
+
+The tension between the provided level of concurrency and resource
+usage also forced its users to make unnecessary tradeoffs like libata
+choosing to use ST wq for polling PIOs and accepting an unnecessary
+limitation that no two polling PIOs can progress at the same time.  As
+MT wq don't provide much better concurrency, users which require
+higher level of concurrency, like async or fscache, had to implement
+their own thread pool.
+
+Concurrency Managed Workqueue (cmwq) is a reimplementation of wq with
+focus on the following goals.
+
+* Maintain compatibility with the original workqueue API.
+
+* Use per-CPU unified worker pools shared by all wq to provide
+  flexible level of concurrency on demand without wasting a lot of
+  resource.
+
+* Automatically regulate worker pool and level of concurrency so that
+  the API users don't need to worry about such details.
+
+
+3. The Design
+
+In order to ease the asynchronous execution of functions a new
+abstraction, the work item, is introduced.
+
+A work item is a simple struct that holds a pointer to the function
+that is to be executed asynchronously.  Whenever a driver or subsystem
+wants a function to be executed asynchronously it has to set up a work
+item pointing to that function and queue that work item on a
+workqueue.
+
+Special purpose threads, called worker threads, execute the functions
+off of the queue, one after the other.  If no work is queued, the
+worker threads become idle.  These worker threads are managed in so
+called thread-pools.
+
+The cmwq design differentiates between the user-facing workqueues that
+subsystems and drivers queue work items on and the backend mechanism
+which manages thread-pool and processes the queued work items.
+
+The backend is called gcwq.  There is one gcwq for each possible CPU
+and one gcwq to serve work items queued on unbound workqueues.
+
+Subsystems and drivers can create and queue work items through special
+workqueue API functions as they see fit. They can influence some
+aspects of the way the work items are executed by setting flags on the
+workqueue they are putting the work item on. These flags include
+things like CPU locality, reentrancy, concurrency limits and more. To
+get a detailed overview refer to the API description of
+alloc_workqueue() below.
+
+When a work item is queued to a workqueue, the target gcwq is
+determined according to the queue parameters and workqueue attributes
+and appended on the shared worklist of the gcwq.  For example, unless
+specifically overridden, a work item of a bound workqueue will be
+queued on the worklist of exactly that gcwq that is associated to the
+CPU the issuer is running on.
+
+For any worker pool implementation, managing the concurrency level
+(how many execution contexts are active) is an important issue.  cmwq
+tries to keep the concurrency at a minimal but sufficient level.
+Minimal to save resources and sufficient in that the system is used at
+its full capacity.
+
+Each gcwq bound to an actual CPU implements concurrency management by
+hooking into the scheduler.  The gcwq is notified whenever an active
+worker wakes up or sleeps and keeps track of the number of the
+currently runnable workers.  Generally, work items are not expected to
+hog a CPU and consume many cycles.  That means maintaining just enough
+concurrency to prevent work processing from stalling should be
+optimal.  As long as there are one or more runnable workers on the
+CPU, the gcwq doesn't start execution of a new work, but, when the
+last running worker goes to sleep, it immediately schedules a new
+worker so that the CPU doesn't sit idle while there are pending work
+items.  This allows using a minimal number of workers without losing
+execution bandwidth.
+
+Keeping idle workers around doesn't cost other than the memory space
+for kthreads, so cmwq holds onto idle ones for a while before killing
+them.
+
+For an unbound wq, the above concurrency management doesn't apply and
+the gcwq for the pseudo unbound CPU tries to start executing all work
+items as soon as possible.  The responsibility of regulating
+concurrency level is on the users.  There is also a flag to mark a
+bound wq to ignore the concurrency management.  Please refer to the
+API section for details.
+
+Forward progress guarantee relies on that workers can be created when
+more execution contexts are necessary, which in turn is guaranteed
+through the use of rescue workers.  All work items which might be used
+on code paths that handle memory reclaim are required to be queued on
+wq's that have a rescue-worker reserved for execution under memory
+pressure.  Else it is possible that the thread-pool deadlocks waiting
+for execution contexts to free up.
+
+
+4. Application Programming Interface (API)
+
+alloc_workqueue() allocates a wq.  The original create_*workqueue()
+functions are deprecated and scheduled for removal.  alloc_workqueue()
+takes three arguments - @name, @flags and @max_active.  @name is the
+name of the wq and also used as the name of the rescuer thread if
+there is one.
+
+A wq no longer manages execution resources but serves as a domain for
+forward progress guarantee, flush and work item attributes.  @flags
+and @max_active control how work items are assigned execution
+resources, scheduled and executed.
+
+@flags:
+
+  WQ_NON_REENTRANT
+
+        By default, a wq guarantees non-reentrance only on the same
+        CPU.  A work item may not be executed concurrently on the same
+        CPU by multiple workers but is allowed to be executed
+        concurrently on multiple CPUs.  This flag makes sure
+        non-reentrance is enforced across all CPUs.  Work items queued
+        to a non-reentrant wq are guaranteed to be executed by at most
+        one worker system-wide at any given time.
+
+  WQ_UNBOUND
+
+        Work items queued to an unbound wq are served by a special
+        gcwq which hosts workers which are not bound to any specific
+        CPU.  This makes the wq behave as a simple execution context
+        provider without concurrency management.  The unbound gcwq
+        tries to start execution of work items as soon as possible.
+        Unbound wq sacrifices locality but is useful for the following
+        cases.
+
+        * Wide fluctuation in the concurrency level requirement is
+          expected and using bound wq may end up creating large number
+          of mostly unused workers across different CPUs as the issuer
+          hops through different CPUs.
+
+        * Long running CPU intensive workloads which can be better
+          managed by the system scheduler.
+
+  WQ_FREEZEABLE
+
+        A freezeable wq participates in the freeze phase of the system
+        suspend operations.  Work items on the wq are drained and no
+        new work item starts execution until thawed.
+
+  WQ_RESCUER
+
+        All wq which might be used in the memory reclaim paths _MUST_
+        have this flag set.  This reserves one worker exclusively for
+        the execution of this wq under memory pressure.
+
+  WQ_HIGHPRI
+
+        Work items of a highpri wq are queued at the head of the
+        worklist of the target gcwq and start execution regardless of
+        the current concurrency level.  In other words, highpri work
+        items will always start execution as soon as execution
+        resource is available.
+
+        Ordering among highpri work items is preserved - a highpri
+        work item queued after another highpri work item will start
+        execution after the earlier highpri work item starts.
+
+        Although highpri work items are not held back by other
+        runnable work items, they still contribute to the concurrency
+        level.  Highpri work items in runnable state will prevent
+        non-highpri work items from starting execution.
+
+        This flag is meaningless for unbound wq.
+
+  WQ_CPU_INTENSIVE
+
+        Work items of a CPU intensive wq do not contribute to the
+        concurrency level.  In other words, runnable CPU intensive
+        work items will not prevent other work items from starting
+        execution.  This is useful for bound work items which are
+        expected to hog CPU cycles so that their execution is
+        regulated by the system scheduler.
+
+        Although CPU intensive work items don't contribute to the
+        concurrency level, start of their executions is still
+        regulated by the concurrency management and runnable
+        non-CPU-intensive work items can delay execution of CPU
+        intensive work items.
+
+        This flag is meaningless for unbound wq.
+
+  WQ_HIGHPRI | WQ_CPU_INTENSIVE
+
+        This combination makes the wq avoid interaction with
+        concurrency management completely and behave as a simple
+        per-CPU execution context provider.  Work items queued on a
+        highpri CPU-intensive wq start execution as soon as resources
+        are available and don't affect execution of other work items.
+
+@max_active:
+
+@max_active determines the maximum number of execution contexts per
+CPU which can be assigned to the work items of a wq.  For example,
+with @max_active of 16, at most 16 work items of the wq can be
+executing at the same time per CPU.
+
+Currently, for a bound wq, the maximum limit for @max_active is 512
+and the default value used when 0 is specified is 256.  For an unbound
+wq, the limit is higher of 512 and 4 * num_possible_cpus().  These
+values are chosen sufficiently high such that they are not the
+limiting factor while providing protection in runaway cases.
+
+The number of active work items of a wq is usually regulated by the
+users of the wq, more specifically, by how many work items the users
+may queue at the same time.  Unless there is a specific need for
+throttling the number of active work items, specifying '0' is
+recommended.
+
+Some users depend on the strict execution ordering of ST wq.  The
+combination of @max_active of 1 and WQ_UNBOUND is used to achieve this
+behavior.  Work items on such wq are always queued to the unbound gcwq
+and only one work item can be active at any given time thus achieving
+the same ordering property as ST wq.
+
+
+5. Example Execution Scenarios
+
+The following example execution scenarios try to illustrate how cmwq
+behave under different configurations.
+
+ Work items w0, w1, w2 are queued to a bound wq q0 on the same CPU.
+ w0 burns CPU for 5ms then sleeps for 10ms then burns CPU for 5ms
+ again before finishing.  w1 and w2 burn CPU for 5ms then sleep for
+ 10ms.
+
+Ignoring all other tasks, works and processing overhead, and assuming
+simple FIFO scheduling, the following is one highly simplified version
+of possible sequences of events with the original wq.
+
+ TIME IN MSECS  EVENT
+ 0              w0 starts and burns CPU
+ 5              w0 sleeps
+ 15             w0 wakes up and burns CPU
+ 20             w0 finishes
+ 20             w1 starts and burns CPU
+ 25             w1 sleeps
+ 35             w1 wakes up and finishes
+ 35             w2 starts and burns CPU
+ 40             w2 sleeps
+ 50             w2 wakes up and finishes
+
+And with cmwq with @max_active >= 3,
+
+ TIME IN MSECS  EVENT
+ 0              w0 starts and burns CPU
+ 5              w0 sleeps
+ 5              w1 starts and burns CPU
+ 10             w1 sleeps
+ 10             w2 starts and burns CPU
+ 15             w2 sleeps
+ 15             w0 wakes up and burns CPU
+ 20             w0 finishes
+ 20             w1 wakes up and finishes
+ 25             w2 wakes up and finishes
+
+If @max_active == 2,
+
+ TIME IN MSECS  EVENT
+ 0              w0 starts and burns CPU
+ 5              w0 sleeps
+ 5              w1 starts and burns CPU
+ 10             w1 sleeps
+ 15             w0 wakes up and burns CPU
+ 20             w0 finishes
+ 20             w1 wakes up and finishes
+ 20             w2 starts and burns CPU
+ 25             w2 sleeps
+ 35             w2 wakes up and finishes
+
+Now, let's assume w1 and w2 are queued to a different wq q1 which has
+WQ_HIGHPRI set,
+
+ TIME IN MSECS  EVENT
+ 0              w1 and w2 start and burn CPU
+ 5              w1 sleeps
+ 10             w2 sleeps
+ 10             w0 starts and burns CPU
+ 15             w0 sleeps
+ 15             w1 wakes up and finishes
+ 20             w2 wakes up and finishes
+ 25             w0 wakes up and burns CPU
+ 30             w0 finishes
+
+If q1 has WQ_CPU_INTENSIVE set,
+
+ TIME IN MSECS  EVENT
+ 0              w0 starts and burns CPU
+ 5              w0 sleeps
+ 5              w1 and w2 start and burn CPU
+ 10             w1 sleeps
+ 15             w2 sleeps
+ 15             w0 wakes up and burns CPU
+ 20             w0 finishes
+ 20             w1 wakes up and finishes
+ 25             w2 wakes up and finishes
+
+
+6. Guidelines
+
+* Do not forget to use WQ_RESCUER if a wq may process work items which
+  are used during memory reclaim.  Each wq with WQ_RESCUER set has one
+  rescuer thread reserved for it.  If there is dependency among
+  multiple work items used during memory reclaim, they should be
+  queued to separate wq each with WQ_RESCUER.
+
+* Unless strict ordering is required, there is no need to use ST wq.
+
+* Unless there is a specific need, using 0 for @max_active is
+  recommended.  In most use cases, concurrency level usually stays
+  well under the default limit.
+
+* A wq serves as a domain for forward progress guarantee (WQ_RESCUER),
+  flush and work item attributes.  Work items which are not involved
+  in memory reclaim and don't need to be flushed as a part of a group
+  of work items, and don't require any special attribute, can use one
+  of the system wq.  There is no difference in execution
+  characteristics between using a dedicated wq and a system wq.
+
+* Unless work items are expected to consume a huge amount of CPU
+  cycles, using a bound wq is usually beneficial due to the increased
+  level of locality in wq operations and work item execution.
diff --git a/MAINTAINERS b/MAINTAINERS
index c36f5d76e1a2..668682d1f5fa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1135,7 +1135,7 @@ ATLX ETHERNET DRIVERS
 M:      Jay Cliburn <jcliburn@gmail.com>
 M:      Chris Snook <chris.snook@gmail.com>
 M:      Jie Yang <jie.yang@atheros.com>
-L:      atl1-devel@lists.sourceforge.net
+L:      netdev@vger.kernel.org
 W:      http://sourceforge.net/projects/atl1
 W:      http://atl1.sourceforge.net
 S:      Maintained
@@ -1220,7 +1220,7 @@ F:	drivers/auxdisplay/
 F:      include/linux/cfag12864b.h
 
 AVR32 ARCHITECTURE
-M:      Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:      Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
 W:      http://www.atmel.com/products/AVR32/
 W:      http://avr32linux.org/
 W:      http://avrfreaks.net/
@@ -1228,7 +1228,7 @@ S:	Supported
 F:      arch/avr32/
 
 AVR32/AT32AP MACHINE SUPPORT
-M:      Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:      Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
 S:      Supported
 F:      arch/avr32/mach-at32ap/
 
@@ -1445,6 +1445,16 @@ S:	Maintained
 F:      Documentation/video4linux/cafe_ccic
 F:      drivers/media/video/cafe_ccic*
 
+CAIF NETWORK LAYER
+M:      Sjur Braendeland <sjur.brandeland@stericsson.com>
+L:      netdev@vger.kernel.org
+S:      Supported
+F:      Documentation/networking/caif/
+F:      drivers/net/caif/
+F:      include/linux/caif/
+F:      include/net/caif/
+F:      net/caif/
+
 CALGARY x86-64 IOMMU
 M:      Muli Ben-Yehuda <muli@il.ibm.com>
 M:      "Jon D. Mason" <jdmason@kudzu.us>
@@ -2189,6 +2199,12 @@ W:	http://acpi4asus.sf.net
 S:      Maintained
 F:      drivers/platform/x86/eeepc-laptop.c
 
+EFIFB FRAMEBUFFER DRIVER
+L:      linux-fbdev@vger.kernel.org
+M:      Peter Jones <pjones@redhat.com>
+S:      Maintained
+F:      drivers/video/efifb.c
+
 EFS FILESYSTEM
 W:      http://aeschi.ch.eu.org/efs/
 S:      Orphan
@@ -2201,6 +2217,12 @@ L:	linux-rdma@vger.kernel.org
 S:      Supported
 F:      drivers/infiniband/hw/ehca/
 
+EHEA (IBM pSeries eHEA 10Gb ethernet adapter) DRIVER
+M:      Breno Leitao <leitao@linux.vnet.ibm.com>
+L:      netdev@vger.kernel.org
+S:      Maintained
+F:      drivers/net/ehea/
+
 EMBEDDED LINUX
 M:      Paul Gortmaker <paul.gortmaker@windriver.com>
 M:      Matt Mackall <mpm@selenic.com>
@@ -2641,9 +2663,14 @@ S:	Maintained
 F:      drivers/media/video/gspca/
 
 HARDWARE MONITORING
+M:      Jean Delvare <khali@linux-fr.org>
+M:      Guenter Roeck <guenter.roeck@ericsson.com>
 L:      lm-sensors@lm-sensors.org
 W:      http://www.lm-sensors.org/
-S:      Orphan
+T:      quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-hwmon/
+T:      quilt kernel.org/pub/linux/kernel/people/groeck/linux-staging/
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
+S:      Maintained
 F:      Documentation/hwmon/
 F:      drivers/hwmon/
 F:      include/linux/hwmon*.h
@@ -2781,11 +2808,6 @@ S:	Maintained
 F:      arch/x86/kernel/hpet.c
 F:      arch/x86/include/asm/hpet.h
 
-HPET:   ACPI
-M:      Bob Picco <bob.picco@hp.com>
-S:      Maintained
-F:      drivers/char/hpet.c
-
 HPFS FILESYSTEM
 M:      Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
 W:      http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
@@ -3398,7 +3420,7 @@ F:	drivers/s390/kvm/
 
 KEXEC
 M:      Eric Biederman <ebiederm@xmission.com>
-W:      http://ftp.kernel.org/pub/linux/kernel/people/horms/kexec-tools/
+W:      http://kernel.org/pub/linux/utils/kernel/kexec/
 L:      kexec@lists.infradead.org
 S:      Maintained
 F:      include/linux/kexec.h
@@ -3885,10 +3907,8 @@ F:	Documentation/serial/moxa-smartio
 F:      drivers/char/mxser.*
 
 MSI LAPTOP SUPPORT
-M:      Lennart Poettering <mzxreary@0pointer.de>
+M:      Lee, Chun-Yi <jlee@novell.com>
 L:      platform-driver-x86@vger.kernel.org
-W:      https://tango.0pointer.de/mailman/listinfo/s270-linux
-W:      http://0pointer.de/lennart/tchibo.html
 S:      Maintained
 F:      drivers/platform/x86/msi-laptop.c
 
@@ -3905,8 +3925,10 @@ S:	Supported
 F:      drivers/mfd/
 
 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
-S:      Orphan
+M:      Chris Ball <cjb@laptop.org>
 L:      linux-mmc@vger.kernel.org
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
+S:      Maintained
 F:      drivers/mmc/
 F:      include/linux/mmc/
 
@@ -3923,13 +3945,12 @@ F:	Documentation/sound/oss/MultiSound
 F:      sound/oss/msnd*
 
 MULTITECH MULTIPORT CARD (ISICOM)
-M:      Jiri Slaby <jirislaby@gmail.com>
-S:      Maintained
+S:      Orphan
 F:      drivers/char/isicom.c
 F:      include/linux/isicom.h
 
 MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
-M:      Felipe Balbi <felipe.balbi@nokia.com>
+M:      Felipe Balbi <balbi@ti.com>
 L:      linux-usb@vger.kernel.org
 T:      git git://gitorious.org/usb/usb.git
 S:      Maintained
@@ -4227,7 +4248,7 @@ S:	Maintained
 F:      drivers/char/hw_random/omap-rng.c
 
 OMAP USB SUPPORT
-M:      Felipe Balbi <felipe.balbi@nokia.com>
+M:      Felipe Balbi <balbi@ti.com>
 M:      David Brownell <dbrownell@users.sourceforge.net>
 L:      linux-usb@vger.kernel.org
 L:      linux-omap@vger.kernel.org
@@ -4604,7 +4625,7 @@ F:	include/linux/preempt.h
 PRISM54 WIRELESS DRIVER
 M:      "Luis R. Rodriguez" <mcgrof@gmail.com>
 L:      linux-wireless@vger.kernel.org
-W:      http://prism54.org
+W:      http://wireless.kernel.org/en/users/Drivers/p54
 S:      Obsolete
 F:      drivers/net/wireless/prism54/
 
@@ -4805,6 +4826,7 @@ RCUTORTURE MODULE
 M:      Josh Triplett <josh@freedesktop.org>
 M:      "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
 S:      Supported
+T:      git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git
 F:      Documentation/RCU/torture.txt
 F:      kernel/rcutorture.c
 
@@ -4829,6 +4851,7 @@ M:	Dipankar Sarma <dipankar@in.ibm.com>
 M:      "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
 W:      http://www.rdrop.com/users/paulmck/rclock/
 S:      Supported
+T:      git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git
 F:      Documentation/RCU/
 F:      include/linux/rcu*
 F:      include/linux/srcu*
@@ -4836,12 +4859,10 @@ F:	kernel/rcu*
 F:      kernel/srcu*
 X:      kernel/rcutorture.c
 
-REAL TIME CLOCK DRIVER
+REAL TIME CLOCK DRIVER (LEGACY)
 M:      Paul Gortmaker <p_gortmaker@yahoo.com>
 S:      Maintained
-F:      Documentation/rtc.txt
-F:      drivers/rtc/
-F:      include/linux/rtc.h
+F:      drivers/char/rtc.c
 
 REAL TIME CLOCK (RTC) SUBSYSTEM
 M:      Alessandro Zummo <a.zummo@towertech.it>
@@ -5078,8 +5099,10 @@ S:	Maintained
 F:      drivers/mmc/host/sdricoh_cs.c
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
-S:      Orphan
+M:      Chris Ball <cjb@laptop.org>
 L:      linux-mmc@vger.kernel.org
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
+S:      Maintained
 F:      drivers/mmc/host/sdhci.*
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
diff --git a/Makefile b/Makefile
index 4df9873f83b2..cf7fcb3bf245 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 36
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc6
 NAME = Sheep on Meth
 
 # *DOCUMENTATION*
@@ -554,8 +554,15 @@ endif
 ifdef CONFIG_FRAME_POINTER
 KBUILD_CFLAGS   += -fno-omit-frame-pointer -fno-optimize-sibling-calls
 else
+# Some targets (ARM with Thumb2, for example), can't be built with frame
+# pointers.  For those, we don't have FUNCTION_TRACER automatically
+# select FRAME_POINTER.  However, FUNCTION_TRACER adds -pg, and this is
+# incompatible with -fomit-frame-pointer with current GCC, so we don't use
+# -fomit-frame-pointer with FUNCTION_TRACER.
+ifndef CONFIG_FUNCTION_TRACER
 KBUILD_CFLAGS   += -fomit-frame-pointer
 endif
+endif
 
 ifdef CONFIG_DEBUG_INFO
 KBUILD_CFLAGS   += -g
diff --git a/arch/Kconfig b/arch/Kconfig
index 4877a8c8ee16..fe48fc7a3eba 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -32,8 +32,9 @@ config HAVE_OPROFILE
 
 config KPROBES
         bool "Kprobes"
-        depends on KALLSYMS && MODULES
+        depends on MODULES
         depends on HAVE_KPROBES
+        select KALLSYMS
         help
           Kprobes allows you to trap at almost any kernel address and
           execute a callback function.  register_kprobe() establishes
@@ -45,7 +46,6 @@ config OPTPROBES
         def_bool y
         depends on KPROBES && HAVE_OPTPROBES
         depends on !PREEMPT
-        select KALLSYMS_ALL
 
 config HAVE_EFFICIENT_UNALIGNED_ACCESS
         bool
diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
index f199e69a5d0b..ad368a93a46a 100644
--- a/arch/alpha/include/asm/cache.h
+++ b/arch/alpha/include/asm/cache.h
@@ -17,7 +17,6 @@
 # define L1_CACHE_SHIFT     5
 #endif
 
-#define L1_CACHE_ALIGN(x)  (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
 #define SMP_CACHE_BYTES    L1_CACHE_BYTES
 
 #endif
diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h
index 01d71e1c8a9e..012f1243b1c1 100644
--- a/arch/alpha/include/asm/cacheflush.h
+++ b/arch/alpha/include/asm/cacheflush.h
@@ -43,6 +43,8 @@ extern void smp_imb(void);
 /* ??? Ought to use this in arch/alpha/kernel/signal.c too.  */
 
 #ifndef CONFIG_SMP
+#include <linux/sched.h>
+
 extern void __load_new_mm_context(struct mm_struct *);
 static inline void
 flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 804e5311c841..058937bf5a77 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -449,10 +449,13 @@
 #define __NR_pwritev                    491
 #define __NR_rt_tgsigqueueinfo          492
 #define __NR_perf_event_open            493
+#define __NR_fanotify_init              494
+#define __NR_fanotify_mark              495
+#define __NR_prlimit64                  496
 
 #ifdef __KERNEL__
 
-#define NR_SYSCALLS                     494
+#define NR_SYSCALLS                     497
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
@@ -463,6 +466,7 @@
 #define __ARCH_WANT_SYS_OLD_GETRLIMIT
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
 /* "Conditional" syscalls.  What we want is
 
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index b45d913a51c3..6d159cee5f2f 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -73,8 +73,6 @@
         ldq     $20, HAE_REG($19);      \
         stq     $21, HAE_CACHE($19);    \
         stq     $21, 0($20);            \
-        ldq     $0, 0($sp);             \
-        ldq     $1, 8($sp);             \
 99:;                                    \
         ldq     $19, 72($sp);           \
         ldq     $20, 80($sp);           \
@@ -316,19 +314,24 @@ ret_from_sys_call:
         cmovne  $26, 0, $19             /* $19 = 0 => non-restartable */
         ldq     $0, SP_OFF($sp)
         and     $0, 8, $0
-        beq     $0, restore_all
-ret_from_reschedule:
+        beq     $0, ret_to_kernel
+ret_to_user:
         /* Make sure need_resched and sigpending don't change between
                 sampling and the rti.  */
         lda     $16, 7
         call_pal PAL_swpipl
         ldl     $5, TI_FLAGS($8)
         and     $5, _TIF_WORK_MASK, $2
-        bne     $5, work_pending
+        bne     $2, work_pending
 restore_all:
         RESTORE_ALL
         call_pal PAL_rti
 
+ret_to_kernel:
+        lda     $16, 7
+        call_pal PAL_swpipl
+        br restore_all
+
         .align 3
 $syscall_error:
         /*
@@ -363,7 +366,7 @@ $ret_success:
  *       $8: current.
  *      $19: The old syscall number, or zero if this is not a return
  *           from a syscall that errored and is possibly restartable.
- *      $20: Error indication.
+ *      $20: The old a3 value
  */
 
         .align  4
@@ -392,12 +395,18 @@ $work_resched:
 
 $work_notifysig:
         mov     $sp, $16
-        br      $1, do_switch_stack
+        bsr     $1, do_switch_stack
         mov     $sp, $17
         mov     $5, $18
+        mov     $19, $9         /* save old syscall number */
+        mov     $20, $10        /* save old a3 */
+        and     $5, _TIF_SIGPENDING, $2
+        cmovne  $2, 0, $9       /* we don't want double syscall restarts */
         jsr     $26, do_notify_resume
+        mov     $9, $19
+        mov     $10, $20
         bsr     $1, undo_switch_stack
-        br      restore_all
+        br      ret_to_user
 .end work_pending
 
 /*
@@ -430,6 +439,7 @@ strace:
         beq     $1, 1f
         ldq     $27, 0($2)
 1:      jsr     $26, ($27), sys_gettimeofday
+ret_from_straced:
         ldgp    $gp, 0($26)
 
         /* check return.. */
@@ -650,7 +660,7 @@ kernel_thread:
         /* We don't actually care for a3 success widgetry in the kernel.
            Not for positive errno values.  */
         stq     $0, 0($sp)              /* $0 */
-        br      restore_all
+        br      ret_to_kernel
 .end kernel_thread
 
 /*
@@ -757,11 +767,15 @@ sys_vfork:
         .ent    sys_sigreturn
 sys_sigreturn:
         .prologue 0
+        lda     $9, ret_from_straced
+        cmpult  $26, $9, $9
         mov     $sp, $17
         lda     $18, -SWITCH_STACK_SIZE($sp)
         lda     $sp, -SWITCH_STACK_SIZE($sp)
         jsr     $26, do_sigreturn
-        br      $1, undo_switch_stack
+        bne     $9, 1f
+        jsr     $26, syscall_trace
+1:      br      $1, undo_switch_stack
         br      ret_from_sys_call
 .end sys_sigreturn
 
@@ -770,47 +784,19 @@ sys_sigreturn:
         .ent    sys_rt_sigreturn
 sys_rt_sigreturn:
         .prologue 0
+        lda     $9, ret_from_straced
+        cmpult  $26, $9, $9
         mov     $sp, $17
         lda     $18, -SWITCH_STACK_SIZE($sp)
         lda     $sp, -SWITCH_STACK_SIZE($sp)
         jsr     $26, do_rt_sigreturn
-        br      $1, undo_switch_stack
+        bne     $9, 1f
+        jsr     $26, syscall_trace
+1:      br      $1, undo_switch_stack
         br      ret_from_sys_call
 .end sys_rt_sigreturn
 
         .align  4
-        .globl  sys_sigsuspend
-        .ent    sys_sigsuspend
-sys_sigsuspend:
-        .prologue 0
-        mov     $sp, $17
-        br      $1, do_switch_stack
-        mov     $sp, $18
-        subq    $sp, 16, $sp
-        stq     $26, 0($sp)
-        jsr     $26, do_sigsuspend
-        ldq     $26, 0($sp)
-        lda     $sp, SWITCH_STACK_SIZE+16($sp)
-        ret
-.end sys_sigsuspend
-
-        .align  4
-        .globl  sys_rt_sigsuspend
-        .ent    sys_rt_sigsuspend
-sys_rt_sigsuspend:
-        .prologue 0
-        mov     $sp, $18
-        br      $1, do_switch_stack
-        mov     $sp, $19
-        subq    $sp, 16, $sp
-        stq     $26, 0($sp)
-        jsr     $26, do_rt_sigsuspend
-        ldq     $26, 0($sp)
-        lda     $sp, SWITCH_STACK_SIZE+16($sp)
-        ret
-.end sys_rt_sigsuspend
-
-        .align  4
         .globl  sys_sethae
         .ent    sys_sethae
 sys_sethae:
@@ -929,15 +915,6 @@ sys_execve:
 .end sys_execve
 
         .align  4
-        .globl  osf_sigprocmask
-        .ent    osf_sigprocmask
-osf_sigprocmask:
-        .prologue 0
-        mov     $sp, $18
-        jmp     $31, sys_osf_sigprocmask
-.end osf_sigprocmask
-
-        .align  4
         .globl  alpha_ni_syscall
         .ent    alpha_ni_syscall
 alpha_ni_syscall:
diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c
index 8ca6345bf131..253cf1a87481 100644
--- a/arch/alpha/kernel/err_ev6.c
+++ b/arch/alpha/kernel/err_ev6.c
@@ -90,11 +90,13 @@ static int
 ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn, 
                u64 c_stat, u64 c_sts, int print)
 {
-        char *sourcename[] = { "UNKNOWN", "UNKNOWN", "UNKNOWN",
-                               "MEMORY", "BCACHE", "DCACHE", 
-                               "BCACHE PROBE", "BCACHE PROBE" };
-        char *streamname[] = { "D", "I" };
-        char *bitsname[] = { "SINGLE", "DOUBLE" };
+        static const char * const sourcename[] = {
+                "UNKNOWN", "UNKNOWN", "UNKNOWN",
+                "MEMORY", "BCACHE", "DCACHE",
+                "BCACHE PROBE", "BCACHE PROBE"
+        };
+        static const char * const streamname[] = { "D", "I" };
+        static const char * const bitsname[] = { "SINGLE", "DOUBLE" };
         int status = MCHK_DISPOSITION_REPORT;
         int source = -1, stream = -1, bits = -1;
 
diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c
index 52a79dfc13c6..648ae88aeb8a 100644
--- a/arch/alpha/kernel/err_marvel.c
+++ b/arch/alpha/kernel/err_marvel.c
@@ -109,7 +109,7 @@ marvel_print_err_cyc(u64 err_cyc)
 #define IO7__ERR_CYC__CYCLE__M  (0x7)
 
         printk("%s        Packet In Error: %s\n"
-               "%s        Error in %s, cycle %ld%s%s\n",
+               "%s        Error in %s, cycle %lld%s%s\n",
                err_print_prefix, 
                packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)],
                err_print_prefix,
@@ -313,7 +313,7 @@ marvel_print_po7_ugbge_sym(u64 ugbge_sym)
         }
 
         printk("%s      Up Hose Garbage Symptom:\n"
-               "%s        Source Port: %ld - Dest PID: %ld - OpCode: %s\n", 
+               "%s        Source Port: %lld - Dest PID: %lld - OpCode: %s\n",
                err_print_prefix,
                err_print_prefix, 
                EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT),
@@ -552,7 +552,7 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt)
 #define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M    (0xfff)
 
         printk("%s      Split Completion Error:\n"      
-               "%s         Source (Bus:Dev:Func): %ld:%ld:%ld\n",
+               "%s         Source (Bus:Dev:Func): %lld:%lld:%lld\n",
                err_print_prefix,
                err_print_prefix,
                EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS),
@@ -589,22 +589,23 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt)
 static void
 marvel_print_pox_trans_sum(u64 trans_sum)
 {
-        char *pcix_cmd[] = { "Interrupt Acknowledge",
-                             "Special Cycle",
-                             "I/O Read",
-                             "I/O Write",
-                             "Reserved",
-                             "Reserved / Device ID Message",
-                             "Memory Read",
-                             "Memory Write",
-                             "Reserved / Alias to Memory Read Block",
-                             "Reserved / Alias to Memory Write Block",
-                             "Configuration Read",
-                             "Configuration Write",
-                             "Memory Read Multiple / Split Completion",
-                             "Dual Address Cycle",
-                             "Memory Read Line / Memory Read Block",
-                             "Memory Write and Invalidate / Memory Write Block"
+        static const char * const pcix_cmd[] = {
+                "Interrupt Acknowledge",
+                "Special Cycle",
+                "I/O Read",
+                "I/O Write",
+                "Reserved",
+                "Reserved / Device ID Message",
+                "Memory Read",
+                "Memory Write",
+                "Reserved / Alias to Memory Read Block",
+                "Reserved / Alias to Memory Write Block",
+                "Configuration Read",
+                "Configuration Write",
+                "Memory Read Multiple / Split Completion",
+                "Dual Address Cycle",
+                "Memory Read Line / Memory Read Block",
+                "Memory Write and Invalidate / Memory Write Block"
         };
 
 #define IO7__POX_TRANSUM__PCI_ADDR__S           (0)
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
index f7ed97ce0dfd..c3b3781a03de 100644
--- a/arch/alpha/kernel/err_titan.c
+++ b/arch/alpha/kernel/err_titan.c
@@ -75,8 +75,12 @@ titan_parse_p_serror(int which, u64 serror, int print)
         int status = MCHK_DISPOSITION_REPORT;
 
 #ifdef CONFIG_VERBOSE_MCHECK
-        char *serror_src[] = {"GPCI", "APCI", "AGP HP", "AGP LP"};
-        char *serror_cmd[] = {"DMA Read", "DMA RMW", "SGTE Read", "Reserved"};
+        static const char * const serror_src[] = {
+                "GPCI", "APCI", "AGP HP", "AGP LP"
+        };
+        static const char * const serror_cmd[] = {
+                "DMA Read", "DMA RMW", "SGTE Read", "Reserved"
+        };
 #endif /* CONFIG_VERBOSE_MCHECK */
 
 #define TITAN__PCHIP_SERROR__LOST_UECC  (1UL << 0)
@@ -140,14 +144,15 @@ titan_parse_p_perror(int which, int port, u64 perror, int print)
         int status = MCHK_DISPOSITION_REPORT;
 
 #ifdef CONFIG_VERBOSE_MCHECK
-        char *perror_cmd[] = { "Interrupt Acknowledge", "Special Cycle",
-                               "I/O Read",              "I/O Write",
-                               "Reserved",              "Reserved",
-                               "Memory Read",           "Memory Write",
-                               "Reserved",              "Reserved",
-                               "Configuration Read",    "Configuration Write",
-                               "Memory Read Multiple",  "Dual Address Cycle",
-                               "Memory Read Line","Memory Write and Invalidate"
+        static const char * const perror_cmd[] = {
+                "Interrupt Acknowledge", "Special Cycle",
+                "I/O Read",             "I/O Write",
+                "Reserved",             "Reserved",
+                "Memory Read",          "Memory Write",
+                "Reserved",             "Reserved",
+                "Configuration Read",   "Configuration Write",
+                "Memory Read Multiple", "Dual Address Cycle",
+                "Memory Read Line",     "Memory Write and Invalidate"
         };
 #endif /* CONFIG_VERBOSE_MCHECK */
 
@@ -273,11 +278,11 @@ titan_parse_p_agperror(int which, u64 agperror, int print)
         int cmd, len;
         unsigned long addr;
 
-        char *agperror_cmd[] = { "Read (low-priority)", "Read (high-priority)",
-                                 "Write (low-priority)",
-                                 "Write (high-priority)",
-                                 "Reserved",            "Reserved",
-                                 "Flush",               "Fence"
+        static const char * const agperror_cmd[] = {
+                "Read (low-priority)",  "Read (high-priority)",
+                "Write (low-priority)", "Write (high-priority)",
+                "Reserved",             "Reserved",
+                "Flush",                "Fence"
         };
 #endif /* CONFIG_VERBOSE_MCHECK */
 
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 5d1e6d6ce684..547e8b84b2f7 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -15,7 +15,6 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/stddef.h>
 #include <linux/syscalls.h>
 #include <linux/unistd.h>
@@ -69,7 +68,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
 {
         struct mm_struct *mm;
 
-        lock_kernel();
         mm = current->mm;
         mm->end_code = bss_start + bss_len;
         mm->start_brk = bss_start + bss_len;
@@ -78,7 +76,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
         printk("set_program_attributes(%lx %lx %lx %lx)\n",
                 text_start, text_len, bss_start, bss_len);
 #endif
-        unlock_kernel();
         return 0;
 }
 
@@ -517,7 +514,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
         long error;
         int __user *min_buf_size_ptr;
 
-        lock_kernel();
         switch (code) {
         case PL_SET:
                 if (get_user(error, &args->set.nbytes))
@@ -547,7 +543,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
                 error = -EOPNOTSUPP;
                 break;
         };
-        unlock_kernel();
         return error;
 }
 
@@ -594,7 +589,7 @@ SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
 
 SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
 {
-        char *sysinfo_table[] = {
+        const char *sysinfo_table[] = {
                 utsname()->sysname,
                 utsname()->nodename,
                 utsname()->release,
@@ -606,7 +601,7 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
                 "dummy",        /* secure RPC domain */
         };
         unsigned long offset;
-        char *res;
+        const char *res;
         long len, err = -EINVAL;
 
         offset = command-1;
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 738fc824e2ea..b899e95f79fd 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -66,7 +66,7 @@ static int pci_mmap_resource(struct kobject *kobj,
 {
         struct pci_dev *pdev = to_pci_dev(container_of(kobj,
                                                        struct device, kobj));
-        struct resource *res = (struct resource *)attr->private;
+        struct resource *res = attr->private;
         enum pci_mmap_state mmap_type;
         struct pci_bus_region bar;
         int i;
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index 51c39fa41693..85d8e4f58c83 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -241,20 +241,20 @@ static inline unsigned long alpha_read_pmc(int idx)
 static int alpha_perf_event_set_period(struct perf_event *event,
                                 struct hw_perf_event *hwc, int idx)
 {
-        long left = atomic64_read(&hwc->period_left);
+        long left = local64_read(&hwc->period_left);
         long period = hwc->sample_period;
         int ret = 0;
 
         if (unlikely(left <= -period)) {
                 left = period;
-                atomic64_set(&hwc->period_left, left);
+                local64_set(&hwc->period_left, left);
                 hwc->last_period = period;
                 ret = 1;
         }
 
         if (unlikely(left <= 0)) {
                 left += period;
-                atomic64_set(&hwc->period_left, left);
+                local64_set(&hwc->period_left, left);
                 hwc->last_period = period;
                 ret = 1;
         }
@@ -269,7 +269,7 @@ static int alpha_perf_event_set_period(struct perf_event *event,
         if (left > (long)alpha_pmu->pmc_max_period[idx])
                 left = alpha_pmu->pmc_max_period[idx];
 
-        atomic64_set(&hwc->prev_count, (unsigned long)(-left));
+        local64_set(&hwc->prev_count, (unsigned long)(-left));
 
         alpha_write_pmc(idx, (unsigned long)(-left));
 
@@ -300,10 +300,10 @@ static unsigned long alpha_perf_event_update(struct perf_event *event,
         long delta;
 
 again:
-        prev_raw_count = atomic64_read(&hwc->prev_count);
+        prev_raw_count = local64_read(&hwc->prev_count);
         new_raw_count = alpha_read_pmc(idx);
 
-        if (atomic64_cmpxchg(&hwc->prev_count, prev_raw_count,
+        if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
                              new_raw_count) != prev_raw_count)
                 goto again;
 
@@ -316,8 +316,8 @@ again:
                 delta += alpha_pmu->pmc_max_period[idx] + 1;
         }
 
-        atomic64_add(delta, &event->count);
-        atomic64_sub(delta, &hwc->period_left);
+        local64_add(delta, &event->count);
+        local64_sub(delta, &hwc->period_left);
 
         return new_raw_count;
 }
@@ -636,7 +636,7 @@ static int __hw_perf_event_init(struct perf_event *event)
         if (!hwc->sample_period) {
                 hwc->sample_period = alpha_pmu->pmc_max_period[0];
                 hwc->last_period = hwc->sample_period;
-                atomic64_set(&hwc->period_left, hwc->sample_period);
+                local64_set(&hwc->period_left, hwc->sample_period);
         }
 
         return 0;
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 842dba308eab..3ec35066f1dc 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -356,7 +356,7 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
         dest[27] = pt->r27;
         dest[28] = pt->r28;
         dest[29] = pt->gp;
-        dest[30] = rdusp();
+        dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp;
         dest[31] = pt->pc;
 
         /* Once upon a time this was the PS value.  Which is stupid
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index 3d2627ec9860..d3e52d3fd592 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -156,9 +156,6 @@ extern void SMC669_Init(int);
 /* es1888.c */
 extern void es1888_init(void);
 
-/* ns87312.c */
-extern void ns87312_enable_ide(long ide_base);
-
 /* ../lib/fpreg.c */
 extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
 extern unsigned long alpha_read_fp_reg (unsigned long reg);
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 0932dbb1ef8e..d290845aef59 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -41,46 +41,20 @@ static void do_signal(struct pt_regs *, struct switch_stack *,
 /*
  * The OSF/1 sigprocmask calling sequence is different from the
  * C sigprocmask() sequence..
- *
- * how:
- * 1 - SIG_BLOCK
- * 2 - SIG_UNBLOCK
- * 3 - SIG_SETMASK
- *
- * We change the range to -1 .. 1 in order to let gcc easily
- * use the conditional move instructions.
- *
- * Note that we don't need to acquire the kernel lock for SMP
- * operation, as all of this is local to this thread.
  */
-SYSCALL_DEFINE3(osf_sigprocmask, int, how, unsigned long, newmask,
-                struct pt_regs *, regs)
+SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask)
 {
-        unsigned long oldmask = -EINVAL;
-
-        if ((unsigned long)how-1 <= 2) {
-                long sign = how-2;              /* -1 .. 1 */
-                unsigned long block, unblock;
-
-                newmask &= _BLOCKABLE;
-                spin_lock_irq(&current->sighand->siglock);
-                oldmask = current->blocked.sig[0];
-
-                unblock = oldmask & ~newmask;
-                block = oldmask | newmask;
-                if (!sign)
-                        block = unblock;
-                if (sign <= 0)
-                        newmask = block;
-                if (_NSIG_WORDS > 1 && sign > 0)
-                        sigemptyset(&current->blocked);
-                current->blocked.sig[0] = newmask;
-                recalc_sigpending();
-                spin_unlock_irq(&current->sighand->siglock);
-
-                regs->r0 = 0;           /* special no error return */
+        sigset_t oldmask;
+        sigset_t mask;
+        unsigned long res;
+
+        siginitset(&mask, newmask & ~_BLOCKABLE);
+        res = sigprocmask(how, &mask, &oldmask);
+        if (!res) {
+                force_successful_syscall_return();
+                res = oldmask.sig[0];
         }
-        return oldmask;
+        return res;
 }
 
 SYSCALL_DEFINE3(osf_sigaction, int, sig,
@@ -94,9 +68,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
                 old_sigset_t mask;
                 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
                     __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags))
+                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+                    __get_user(mask, &act->sa_mask))
                         return -EFAULT;
-                __get_user(mask, &act->sa_mask);
                 siginitset(&new_ka.sa.sa_mask, mask);
                 new_ka.ka_restorer = NULL;
         }
@@ -106,9 +80,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
         if (!ret && oact) {
                 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
                     __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags))
+                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
                         return -EFAULT;
-                __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
         }
 
         return ret;
@@ -144,8 +118,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
-asmlinkage int
-do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
+SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
 {
         mask &= _BLOCKABLE;
         spin_lock_irq(&current->sighand->siglock);
@@ -154,41 +127,6 @@ do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 
-        /* Indicate EINTR on return from any possible signal handler,
-           which will not come back through here, but via sigreturn.  */
-        regs->r0 = EINTR;
-        regs->r19 = 1;
-
-        current->state = TASK_INTERRUPTIBLE;
-        schedule();
-        set_thread_flag(TIF_RESTORE_SIGMASK);
-        return -ERESTARTNOHAND;
-}
-
-asmlinkage int
-do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize,
-                 struct pt_regs *regs, struct switch_stack *sw)
-{
-        sigset_t set;
-
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-        if (copy_from_user(&set, uset, sizeof(set)))
-                return -EFAULT;
-
-        sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->saved_sigmask = current->blocked;
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        /* Indicate EINTR on return from any possible signal handler,
-           which will not come back through here, but via sigreturn.  */
-        regs->r0 = EINTR;
-        regs->r19 = 1;
-
         current->state = TASK_INTERRUPTIBLE;
         schedule();
         set_thread_flag(TIF_RESTORE_SIGMASK);
@@ -239,6 +177,8 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
         unsigned long usp;
         long i, err = __get_user(regs->pc, &sc->sc_pc);
 
+        current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
         sw->r26 = (unsigned long) ret_from_sys_call;
 
         err |= __get_user(regs->r0, sc->sc_regs+0);
@@ -591,7 +531,6 @@ syscall_restart(unsigned long r0, unsigned long r19,
                 regs->pc -= 4;
                 break;
         case ERESTART_RESTARTBLOCK:
-                current_thread_info()->restart_block.fn = do_no_restart_syscall;
                 regs->r0 = EINTR;
                 break;
         }
diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c
index 4afc1a1e2e5a..f0df3fbd8402 100644
--- a/arch/alpha/kernel/srm_env.c
+++ b/arch/alpha/kernel/srm_env.c
@@ -87,7 +87,7 @@ static int srm_env_proc_show(struct seq_file *m, void *v)
         srm_env_t       *entry;
         char            *page;
 
-        entry = (srm_env_t *)m->private;
+        entry = m->private;
         page = (char *)__get_free_page(GFP_USER);
         if (!page)
                 return -ENOMEM;
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
index affd0f3f25df..14c8898d19ec 100644
--- a/arch/alpha/kernel/sys_cabriolet.c
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -33,7 +33,7 @@
 #include "irq_impl.h"
 #include "pci_impl.h"
 #include "machvec_impl.h"
-
+#include "pc873xx.h"
 
 /* Note mask bit is true for DISABLED irqs.  */
 static unsigned long cached_irq_mask = ~0UL;
@@ -236,17 +236,30 @@ cabriolet_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 }
 
 static inline void __init
+cabriolet_enable_ide(void)
+{
+        if (pc873xx_probe() == -1) {
+                printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+         } else {
+                printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+                        pc873xx_get_model(), pc873xx_get_base());
+
+                pc873xx_enable_ide();
+        }
+}
+
+static inline void __init
 cabriolet_init_pci(void)
 {
         common_init_pci();
-        ns87312_enable_ide(0x398);
+        cabriolet_enable_ide();
 }
 
 static inline void __init
 cia_cab_init_pci(void)
 {
         cia_init_pci();
-        ns87312_enable_ide(0x398);
+        cabriolet_enable_ide();
 }
 
 /*
diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c
index 230464885b5c..4da596b6adbb 100644
--- a/arch/alpha/kernel/sys_takara.c
+++ b/arch/alpha/kernel/sys_takara.c
@@ -29,7 +29,7 @@
 #include "irq_impl.h"
 #include "pci_impl.h"
 #include "machvec_impl.h"
-
+#include "pc873xx.h"
 
 /* Note mask bit is true for DISABLED irqs.  */
 static unsigned long cached_irq_mask[2] = { -1, -1 };
@@ -264,7 +264,14 @@ takara_init_pci(void)
                 alpha_mv.pci_map_irq = takara_map_irq_srm;
 
         cia_init_pci();
-        ns87312_enable_ide(0x26e);
+
+        if (pc873xx_probe() == -1) {
+                printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+        } else {
+                printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+                        pc873xx_get_model(), pc873xx_get_base());
+                pc873xx_enable_ide();
+        }
 }
 
 
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 09acb786e72b..a6a1de9db16f 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -58,7 +58,7 @@ sys_call_table:
         .quad sys_open                          /* 45 */
         .quad alpha_ni_syscall
         .quad sys_getxgid
-        .quad osf_sigprocmask
+        .quad sys_osf_sigprocmask
         .quad alpha_ni_syscall
         .quad alpha_ni_syscall                  /* 50 */
         .quad sys_acct
@@ -512,6 +512,9 @@ sys_call_table:
         .quad sys_pwritev
         .quad sys_rt_tgsigqueueinfo
         .quad sys_perf_event_open
+        .quad sys_fanotify_init
+        .quad sys_fanotify_mark                         /* 495 */
+        .quad sys_prlimit64
 
         .size sys_call_table, . - sys_call_table
         .type sys_call_table, @object
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index eacceb26d9c8..396af1799ea4 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -191,16 +191,16 @@ irqreturn_t timer_interrupt(int irq, void *dev)
 
         write_sequnlock(&xtime_lock);
 
-#ifndef CONFIG_SMP
-        while (nticks--)
-                update_process_times(user_mode(get_irq_regs()));
-#endif
-
         if (test_perf_event_pending()) {
                 clear_perf_event_pending();
                 perf_event_do_pending();
         }
 
+#ifndef CONFIG_SMP
+        while (nticks--)
+                update_process_times(user_mode(get_irq_regs()));
+#endif
+
         return IRQ_HANDLED;
 }
 
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index b14f015008ad..0414e021a91c 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -13,7 +13,6 @@
 #include <linux/sched.h>
 #include <linux/tty.h>
 #include <linux/delay.h>
-#include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kallsyms.h>
@@ -623,7 +622,6 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
                 return;
         }
 
-        lock_kernel();
         printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",
                 pc, va, opcode, reg);
         do_exit(SIGSEGV);
@@ -646,7 +644,6 @@ got_exception:
          * Yikes!  No one to forward the exception to.
          * Since the registers are in a weird format, dump them ourselves.
          */
-        lock_kernel();
 
         printk("%s(%d): unhandled unaligned exception\n",
                current->comm, task_pid_nr(current));
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a7ed21f0136a..b404e5eec0c1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -19,6 +19,8 @@ config ARM
         select HAVE_KPROBES if (!XIP_KERNEL)
         select HAVE_KRETPROBES if (HAVE_KPROBES)
         select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+        select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
+        select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
         select HAVE_GENERIC_DMA_COHERENT
         select HAVE_KERNEL_GZIP
         select HAVE_KERNEL_LZO
@@ -26,6 +28,7 @@ config ARM
         select HAVE_PERF_EVENTS
         select PERF_USE_VMALLOC
         select HAVE_REGS_AND_STACK_ACCESS_API
+        select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
         help
           The ARM series is a line of low-power-consumption RISC chip designs
           licensed by ARM Ltd and targeted at embedded applications and
@@ -145,6 +148,9 @@ config ARCH_HAS_CPUFREQ
           and that the relevant menu configurations are displayed for
           it.
 
+config ARCH_HAS_CPU_IDLE_WAIT
+       def_bool y
+
 config GENERIC_HWEIGHT
         bool
         default y
@@ -271,7 +277,6 @@ config ARCH_AT91
         bool "Atmel AT91"
         select ARCH_REQUIRE_GPIOLIB
         select HAVE_CLK
-        select ARCH_USES_GETTIMEOFFSET
         help
           This enables support for systems based on the Atmel AT91RM9200,
           AT91SAM9 and AT91CAP9 processors.
@@ -1003,7 +1008,7 @@ endif
 
 config ARM_ERRATA_411920
         bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
-        depends on CPU_V6 && !SMP
+        depends on CPU_V6
         help
           Invalidation of the Instruction Cache operation can
           fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
@@ -1051,6 +1056,32 @@ config ARM_ERRATA_460075
           ACTLR register. Note that setting specific bits in the ACTLR register
           may not be available in non-secure mode.
 
+config ARM_ERRATA_742230
+        bool "ARM errata: DMB operation may be faulty"
+        depends on CPU_V7 && SMP
+        help
+          This option enables the workaround for the 742230 Cortex-A9
+          (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
+          between two write operations may not ensure the correct visibility
+          ordering of the two writes. This workaround sets a specific bit in
+          the diagnostic register of the Cortex-A9 which causes the DMB
+          instruction to behave as a DSB, ensuring the correct behaviour of
+          the two writes.
+
+config ARM_ERRATA_742231
+        bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
+        depends on CPU_V7 && SMP
+        help
+          This option enables the workaround for the 742231 Cortex-A9
+          (r2p0..r2p2) erratum. Under certain conditions, specific to the
+          Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
+          accessing some data located in the same cache line, may get corrupted
+          data due to bad handling of the address hazard when the line gets
+          replaced from one of the CPUs at the same time as another CPU is
+          accessing it. This workaround sets specific bits in the diagnostic
+          register of the Cortex-A9 which reduces the linefill issuing
+          capabilities of the processor.
+
 config PL310_ERRATA_588369
         bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
         depends on CACHE_L2X0 && ARCH_OMAP4
@@ -1142,13 +1173,13 @@ source "kernel/time/Kconfig"
 
 config SMP
         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
-                 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
-                 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
+        depends on EXPERIMENTAL
         depends on GENERIC_CLOCKEVENTS
+        depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
+                 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
+                 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
         select USE_GENERIC_SMP_HELPERS
-        select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
-                 ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
+        select HAVE_ARM_SCU
         help
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
@@ -1166,6 +1197,19 @@ config SMP
 
           If you don't know what to do here, say N.
 
+config SMP_ON_UP
+        bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
+        depends on EXPERIMENTAL
+        depends on SMP && !XIP && !THUMB2_KERNEL
+        default y
+        help
+          SMP kernels contain instructions which fail on non-SMP processors.
+          Enabling this option allows the kernel to modify itself to make
+          these instructions safe.  Disabling it allows about 1K of space
+          savings.
+
+          If you don't know what to do here, say Y.
+
 config HAVE_ARM_SCU
         bool
         depends on SMP
@@ -1216,12 +1260,9 @@ config HOTPLUG_CPU
 
 config LOCAL_TIMERS
         bool "Use local timer interrupts"
-        depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
-                REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
-                ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
+        depends on SMP
         default y
-        select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
-                ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
+        select HAVE_ARM_TWD
         help
           Enable support for local timers on SMP platforms, rather then the
           legacy IPI broadcast method.  Local timers allows the system
@@ -1576,96 +1617,6 @@ config AUTO_ZRELADDR
           0xf8000000. This assumes the zImage being placed in the first 128MB
           from start of memory.
 
-config ZRELADDR
-        hex "Physical address of the decompressed kernel image"
-        depends on !AUTO_ZRELADDR
-        default 0x00008000 if ARCH_BCMRING ||\
-                ARCH_CNS3XXX ||\
-                ARCH_DOVE ||\
-                ARCH_EBSA110 ||\
-                ARCH_FOOTBRIDGE ||\
-                ARCH_INTEGRATOR ||\
-                ARCH_IOP13XX ||\
-                ARCH_IOP33X ||\
-                ARCH_IXP2000 ||\
-                ARCH_IXP23XX ||\
-                ARCH_IXP4XX ||\
-                ARCH_KIRKWOOD ||\
-                ARCH_KS8695 ||\
-                ARCH_LOKI ||\
-                ARCH_MMP ||\
-                ARCH_MV78XX0 ||\
-                ARCH_NOMADIK ||\
-                ARCH_NUC93X ||\
-                ARCH_NS9XXX ||\
-                ARCH_ORION5X ||\
-                ARCH_SPEAR3XX ||\
-                ARCH_SPEAR6XX ||\
-                ARCH_U8500 ||\
-                ARCH_VERSATILE ||\
-                ARCH_W90X900
-        default 0x08008000 if ARCH_MX1 ||\
-                ARCH_SHARK
-        default 0x10008000 if ARCH_MSM ||\
-                ARCH_OMAP1 ||\
-                ARCH_RPC
-        default 0x20008000 if ARCH_S5P6440 ||\
-                ARCH_S5P6442 ||\
-                ARCH_S5PC100 ||\
-                ARCH_S5PV210
-        default 0x30008000 if ARCH_S3C2410 ||\
-                ARCH_S3C2400 ||\
-                ARCH_S3C2412 ||\
-                ARCH_S3C2416 ||\
-                ARCH_S3C2440 ||\
-                ARCH_S3C2443
-        default 0x40008000 if ARCH_STMP378X ||\
-                ARCH_STMP37XX ||\
-                ARCH_SH7372 ||\
-                ARCH_SH7377 ||\
-                ARCH_S5PV310
-        default 0x50008000 if ARCH_S3C64XX ||\
-                ARCH_SH7367
-        default 0x60008000 if ARCH_VEXPRESS
-        default 0x80008000 if ARCH_MX25 ||\
-                ARCH_MX3 ||\
-                ARCH_NETX ||\
-                ARCH_OMAP2PLUS ||\
-                ARCH_PNX4008
-        default 0x90008000 if ARCH_MX5 ||\
-                ARCH_MX91231
-        default 0xa0008000 if ARCH_IOP32X ||\
-                ARCH_PXA ||\
-                MACH_MX27
-        default 0xc0008000 if ARCH_LH7A40X ||\
-                MACH_MX21
-        default 0xf0008000 if ARCH_AAEC2000 ||\
-                ARCH_L7200
-        default 0xc0028000 if ARCH_CLPS711X
-        default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
-        default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
-        default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
-        default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
-        default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
-        default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
-        default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
-        default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
-        default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
-        default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
-        default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
-        default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
-        default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
-        default 0xc0208000 if ARCH_SA1100 && SA1111
-        default 0xc0008000 if ARCH_SA1100 && !SA1111
-        default 0x30108000 if ARCH_S3C2410 && PM_H1940
-        default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
-        default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
-        help
-          ZRELADDR is the physical address where the decompressed kernel
-          image will be placed. ZRELADDR has to be specified when the
-          assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
-          selected.
-
 endmenu
 
 menu "CPU Power Management"
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 91344af75f39..4dbce538fec4 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -27,6 +27,11 @@ config ARM_UNWIND
           the performance is not affected. Currently, this feature
           only works with EABI compilers. If unsure say Y.
 
+config OLD_MCOUNT
+        bool
+        depends on FUNCTION_TRACER && FRAME_POINTER
+        default y
+
 config DEBUG_USER
         bool "Verbose user fault messages"
         help
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index f705213caa88..4a590f4113e2 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -14,16 +14,18 @@
 MKIMAGE         := $(srctree)/scripts/mkuboot.sh
 
 ifneq ($(MACHINE),)
--include $(srctree)/$(MACHINE)/Makefile.boot
+include $(srctree)/$(MACHINE)/Makefile.boot
 endif
 
 # Note: the following conditions must always be true:
+#   ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
 #   PARAMS_PHYS must be within 4MB of ZRELADDR
 #   INITRD_PHYS must be in RAM
+ZRELADDR    := $(zreladdr-y)
 PARAMS_PHYS := $(params_phys-y)
 INITRD_PHYS := $(initrd_phys-y)
 
-export INITRD_PHYS PARAMS_PHYS
+export ZRELADDR INITRD_PHYS PARAMS_PHYS
 
 targets := Image zImage xipImage bootpImage uImage
 
@@ -65,7 +67,7 @@ quiet_cmd_uimage = UIMAGE  $@
 ifeq ($(CONFIG_ZBOOT_ROM),y)
 $(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
 else
-$(obj)/uImage: LOADADDR=$(CONFIG_ZRELADDR)
+$(obj)/uImage: LOADADDR=$(ZRELADDR)
 endif
 
 ifeq ($(CONFIG_THUMB2_KERNEL),y)
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 68775e33476c..65a7c1c588a9 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -79,6 +79,10 @@ endif
 EXTRA_CFLAGS  := -fpic -fno-builtin
 EXTRA_AFLAGS  := -Wa,-march=all
 
+# Supply ZRELADDR to the decompressor via a linker symbol.
+ifneq ($(CONFIG_AUTO_ZRELADDR),y)
+LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
+endif
 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
 LDFLAGS_vmlinux += --be8
 endif
@@ -112,5 +116,5 @@ CFLAGS_font.o := -Dstatic=
 $(obj)/font.c: $(FONTC)
         $(call cmd,shipped)
 
-$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
+$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
         @sed "$(SEDFLAGS)" < $< > $@
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 6af9907c3b5c..6825c34646d4 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -177,7 +177,7 @@ not_angel:
                 and     r4, pc, #0xf8000000
                 add     r4, r4, #TEXT_OFFSET
 #else
-                ldr     r4, =CONFIG_ZRELADDR
+                ldr     r4, =zreladdr
 #endif
                 subs    r0, r0, r1              @ calculate the delta offset
 
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 6c0913562455..1bec96e85196 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -263,6 +263,22 @@ static int it8152_pci_platform_notify_remove(struct device *dev)
         return 0;
 }
 
+int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
+{
+        dev_dbg(dev, "%s: dma_addr %08x, size %08x\n",
+                __func__, dma_addr, size);
+        return (dev->bus == &pci_bus_type) &&
+                ((dma_addr + size - PHYS_OFFSET) >= SZ_64M);
+}
+
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+        if (mask >= PHYS_OFFSET + SZ_64M - 1)
+                return 0;
+
+        return -EIO;
+}
+
 int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
 {
         it8152_io.start = IT8152_IO_BASE + 0x12000;
diff --git a/arch/arm/common/pl330.c b/arch/arm/common/pl330.c
index 5ebbab6242a7..8f0f86db3602 100644
--- a/arch/arm/common/pl330.c
+++ b/arch/arm/common/pl330.c
@@ -146,8 +146,7 @@
 #define DESIGNER        0x41
 #define REVISION        0x0
 #define INTEG_CFG       0x0
-#define PERIPH_ID_VAL   ((PART << 0) | (DESIGNER << 12) \
-                          | (REVISION << 20) | (INTEG_CFG << 24))
+#define PERIPH_ID_VAL   ((PART << 0) | (DESIGNER << 12))
 
 #define PCELL_ID_VAL    0xb105f00d
 
@@ -1859,10 +1858,10 @@ int pl330_add(struct pl330_info *pi)
         regs = pi->base;
 
         /* Check if we can handle this DMAC */
-        if (get_id(pi, PERIPH_ID) != PERIPH_ID_VAL
+        if ((get_id(pi, PERIPH_ID) & 0xfffff) != PERIPH_ID_VAL
            || get_id(pi, PCELL_ID) != PCELL_ID_VAL) {
                 dev_err(pi->dev, "PERIPH_ID 0x%x, PCELL_ID 0x%x !\n",
-                        readl(regs + PERIPH_ID), readl(regs + PCELL_ID));
+                        get_id(pi, PERIPH_ID), get_id(pi, PCELL_ID));
                 return -EINVAL;
         }
 
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 517d50ddbeb3..c0258a8c103b 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -678,7 +678,7 @@ out:
  *      %-EBUSY         physical address already marked in-use.
  *      %0              successful.
  */
-static int
+static int __devinit
 __sa1111_probe(struct device *me, struct resource *mem, int irq)
 {
         struct sa1111 *sachip;
diff --git a/arch/arm/configs/realview-smp_defconfig b/arch/arm/configs/realview-smp_defconfig
index 9312ef9f9bf4..5ca7a61f7c01 100644
--- a/arch/arm/configs/realview-smp_defconfig
+++ b/arch/arm/configs/realview-smp_defconfig
@@ -39,6 +39,7 @@ CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_ARM_INTEGRATOR=y
+CONFIG_ARM_CHARLCD=y
 CONFIG_NETDEVICES=y
 CONFIG_SMSC_PHY=y
 CONFIG_NET_ETHERNET=y
@@ -52,10 +53,13 @@ CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_LEGACY_PTY_COUNT=16
 # CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_I2C_VERSATILE=y
+CONFIG_SPI=y
+CONFIG_GPIOLIB=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
 CONFIG_FB_ARMCLCD=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
@@ -70,7 +74,13 @@ CONFIG_SND_ARMAACI=y
 # CONFIG_USB_SUPPORT is not set
 CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
-CONFIG_INOTIFY=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1307=y
+CONFIG_RTC_DRV_PL031=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_CRAMFS=y
@@ -80,6 +90,7 @@ CONFIG_ROOT_NFS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/arm/configs/realview_defconfig b/arch/arm/configs/realview_defconfig
index fb75192ee7e5..fcaa60328051 100644
--- a/arch/arm/configs/realview_defconfig
+++ b/arch/arm/configs/realview_defconfig
@@ -38,6 +38,7 @@ CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_ARM_INTEGRATOR=y
+CONFIG_ARM_CHARLCD=y
 CONFIG_NETDEVICES=y
 CONFIG_SMSC_PHY=y
 CONFIG_NET_ETHERNET=y
@@ -51,10 +52,13 @@ CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_LEGACY_PTY_COUNT=16
 # CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_I2C_VERSATILE=y
+CONFIG_SPI=y
+CONFIG_GPIOLIB=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
 CONFIG_FB_ARMCLCD=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
@@ -69,7 +73,13 @@ CONFIG_SND_ARMAACI=y
 # CONFIG_USB_SUPPORT is not set
 CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
-CONFIG_INOTIFY=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1307=y
+CONFIG_RTC_DRV_PL031=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_CRAMFS=y
@@ -79,6 +89,7 @@ CONFIG_ROOT_NFS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 6e8f05c8a1c8..062b58c029ab 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -154,16 +154,39 @@
         .long   9999b,9001f;                    \
         .popsection
 
+#ifdef CONFIG_SMP
+#define ALT_SMP(instr...)                                       \
+9998:   instr
+#define ALT_UP(instr...)                                        \
+        .pushsection ".alt.smp.init", "a"                       ;\
+        .long   9998b                                           ;\
+        instr                                                   ;\
+        .popsection
+#define ALT_UP_B(label)                                 \
+        .equ    up_b_offset, label - 9998b                      ;\
+        .pushsection ".alt.smp.init", "a"                       ;\
+        .long   9998b                                           ;\
+        b       . + up_b_offset                                 ;\
+        .popsection
+#else
+#define ALT_SMP(instr...)
+#define ALT_UP(instr...) instr
+#define ALT_UP_B(label) b label
+#endif
+
 /*
  * SMP data memory barrier
  */
         .macro  smp_dmb
 #ifdef CONFIG_SMP
 #if __LINUX_ARM_ARCH__ >= 7
-        dmb
+        ALT_SMP(dmb)
 #elif __LINUX_ARM_ARCH__ == 6
-        mcr     p15, 0, r0, c7, c10, 5  @ dmb
+        ALT_SMP(mcr     p15, 0, r0, c7, c10, 5) @ dmb
+#else
+#error Incompatible SMP platform
 #endif
+        ALT_UP(nop)
 #endif
         .endm
 
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 4656a24058d2..3acd8fa25e34 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -137,10 +137,10 @@
 #endif
 
 /*
- * This flag is used to indicate that the page pointed to by a pte
- * is dirty and requires cleaning before returning it to the user.
+ * This flag is used to indicate that the page pointed to by a pte is clean
+ * and does not require cleaning before returning it to the user.
  */
-#define PG_dcache_dirty PG_arch_1
+#define PG_dcache_clean PG_arch_1
 
 /*
  *      MM Cache Management
@@ -156,6 +156,12 @@
  *      Please note that the implementation of these, and the required
  *      effects are cache-type (VIVT/VIPT/PIPT) specific.
  *
+ *      flush_icache_all()
+ *
+ *              Unconditionally clean and invalidate the entire icache.
+ *              Currently only needed for cache-v6.S and cache-v7.S, see
+ *              __flush_icache_all for the generic implementation.
+ *
  *      flush_kern_all()
  *
  *              Unconditionally clean and invalidate the entire cache.
@@ -206,6 +212,7 @@
  */
 
 struct cpu_cache_fns {
+        void (*flush_icache_all)(void);
         void (*flush_kern_all)(void);
         void (*flush_user_all)(void);
         void (*flush_user_range)(unsigned long, unsigned long, unsigned int);
@@ -227,6 +234,7 @@ struct cpu_cache_fns {
 
 extern struct cpu_cache_fns cpu_cache;
 
+#define __cpuc_flush_icache_all         cpu_cache.flush_icache_all
 #define __cpuc_flush_kern_all           cpu_cache.flush_kern_all
 #define __cpuc_flush_user_all           cpu_cache.flush_user_all
 #define __cpuc_flush_user_range         cpu_cache.flush_user_range
@@ -246,6 +254,7 @@ extern struct cpu_cache_fns cpu_cache;
 
 #else
 
+#define __cpuc_flush_icache_all         __glue(_CACHE,_flush_icache_all)
 #define __cpuc_flush_kern_all           __glue(_CACHE,_flush_kern_cache_all)
 #define __cpuc_flush_user_all           __glue(_CACHE,_flush_user_cache_all)
 #define __cpuc_flush_user_range         __glue(_CACHE,_flush_user_cache_range)
@@ -253,6 +262,7 @@ extern struct cpu_cache_fns cpu_cache;
 #define __cpuc_coherent_user_range      __glue(_CACHE,_coherent_user_range)
 #define __cpuc_flush_dcache_area        __glue(_CACHE,_flush_kern_dcache_area)
 
+extern void __cpuc_flush_icache_all(void);
 extern void __cpuc_flush_kern_all(void);
 extern void __cpuc_flush_user_all(void);
 extern void __cpuc_flush_user_range(unsigned long, unsigned long, unsigned int);
@@ -291,6 +301,37 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
 /*
  * Convert calls to our calling convention.
  */
+
+/* Invalidate I-cache */
+#define __flush_icache_all_generic()                                    \
+        asm("mcr        p15, 0, %0, c7, c5, 0"                          \
+            : : "r" (0));
+
+/* Invalidate I-cache inner shareable */
+#define __flush_icache_all_v7_smp()                                     \
+        asm("mcr        p15, 0, %0, c7, c1, 0"                          \
+            : : "r" (0));
+
+/*
+ * Optimized __flush_icache_all for the common cases. Note that UP ARMv7
+ * will fall through to use __flush_icache_all_generic.
+ */
+#if (defined(CONFIG_CPU_V7) && defined(CONFIG_CPU_V6)) ||               \
+        defined(CONFIG_SMP_ON_UP)
+#define __flush_icache_preferred        __cpuc_flush_icache_all
+#elif __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP)
+#define __flush_icache_preferred        __flush_icache_all_v7_smp
+#elif __LINUX_ARM_ARCH__ == 6 && defined(CONFIG_ARM_ERRATA_411920)
+#define __flush_icache_preferred        __cpuc_flush_icache_all
+#else
+#define __flush_icache_preferred        __flush_icache_all_generic
+#endif
+
+static inline void __flush_icache_all(void)
+{
+        __flush_icache_preferred();
+}
+
 #define flush_cache_all()               __cpuc_flush_kern_all()
 
 static inline void vivt_flush_cache_mm(struct mm_struct *mm)
@@ -366,21 +407,6 @@ extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 extern void flush_dcache_page(struct page *);
 
-static inline void __flush_icache_all(void)
-{
-#ifdef CONFIG_ARM_ERRATA_411920
-        extern void v6_icache_inval_all(void);
-        v6_icache_inval_all();
-#elif defined(CONFIG_SMP) && __LINUX_ARM_ARCH__ >= 7
-        asm("mcr        p15, 0, %0, c7, c1, 0   @ invalidate I-cache inner shareable\n"
-            :
-            : "r" (0));
-#else
-        asm("mcr        p15, 0, %0, c7, c5, 0   @ invalidate I-cache\n"
-            :
-            : "r" (0));
-#endif
-}
 static inline void flush_kernel_vmap_range(void *addr, int size)
 {
         if ((cache_is_vivt() || cache_is_vipt_aliasing()))
@@ -405,9 +431,6 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 static inline void flush_kernel_dcache_page(struct page *page)
 {
-        /* highmem pages are always flushed upon kunmap already */
-        if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page))
-                __cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);
 }
 
 #define flush_dcache_mmap_lock(mapping) \
diff --git a/arch/arm/include/asm/cachetype.h b/arch/arm/include/asm/cachetype.h
index d3a4c2cb9f2f..c023db09fcc1 100644
--- a/arch/arm/include/asm/cachetype.h
+++ b/arch/arm/include/asm/cachetype.h
@@ -6,6 +6,7 @@
 #define CACHEID_VIPT_ALIASING           (1 << 2)
 #define CACHEID_VIPT                    (CACHEID_VIPT_ALIASING|CACHEID_VIPT_NONALIASING)
 #define CACHEID_ASID_TAGGED             (1 << 3)
+#define CACHEID_VIPT_I_ALIASING         (1 << 4)
 
 extern unsigned int cacheid;
 
@@ -14,15 +15,18 @@ extern unsigned int cacheid;
 #define cache_is_vipt_nonaliasing()     cacheid_is(CACHEID_VIPT_NONALIASING)
 #define cache_is_vipt_aliasing()        cacheid_is(CACHEID_VIPT_ALIASING)
 #define icache_is_vivt_asid_tagged()    cacheid_is(CACHEID_ASID_TAGGED)
+#define icache_is_vipt_aliasing()       cacheid_is(CACHEID_VIPT_I_ALIASING)
 
 /*
  * __LINUX_ARM_ARCH__ is the minimum supported CPU architecture
  * Mask out support which will never be present on newer CPUs.
  * - v6+ is never VIVT
- * - v7+ VIPT never aliases
+ * - v7+ VIPT never aliases on D-side
  */
 #if __LINUX_ARM_ARCH__ >= 7
-#define __CACHEID_ARCH_MIN      (CACHEID_VIPT_NONALIASING | CACHEID_ASID_TAGGED)
+#define __CACHEID_ARCH_MIN      (CACHEID_VIPT_NONALIASING |\
+                                 CACHEID_ASID_TAGGED |\
+                                 CACHEID_VIPT_I_ALIASING)
 #elif __LINUX_ARM_ARCH__ >= 6
 #define __CACHEID_ARCH_MIN      (~CACHEID_VIVT)
 #else
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index c226fe10553e..c568da7dcae4 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -288,15 +288,7 @@ extern void dmabounce_unregister_dev(struct device *);
  * DMA access and 1 if the buffer needs to be bounced.
  *
  */
-#ifdef CONFIG_SA1111
 extern int dma_needs_bounce(struct device*, dma_addr_t, size_t);
-#else
-static inline int dma_needs_bounce(struct device *dev, dma_addr_t addr,
-                                   size_t size)
-{
-        return 0;
-}
-#endif
 
 /*
  * The DMA API, implemented by dmabounce.c.  See below for descriptions.
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index 103f7ee97313..f89515adac60 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -2,12 +2,30 @@
 #define _ASM_ARM_FTRACE
 
 #ifdef CONFIG_FUNCTION_TRACER
-#define MCOUNT_ADDR             ((long)(mcount))
+#define MCOUNT_ADDR             ((unsigned long)(__gnu_mcount_nc))
 #define MCOUNT_INSN_SIZE        4 /* sizeof mcount call */
 
 #ifndef __ASSEMBLY__
 extern void mcount(void);
 extern void __gnu_mcount_nc(void);
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+struct dyn_arch_ftrace {
+#ifdef CONFIG_OLD_MCOUNT
+        bool    old_mcount;
+#endif
+};
+
+static inline unsigned long ftrace_call_adjust(unsigned long addr)
+{
+        /* With Thumb-2, the recorded addresses have the lsb set */
+        return addr & ~1;
+}
+
+extern void ftrace_caller_old(void);
+extern void ftrace_call_old(void);
+#endif
+
 #endif
 
 #endif
diff --git a/arch/arm/include/asm/hardware/coresight.h b/arch/arm/include/asm/hardware/coresight.h
index 212e47828c79..7ecd793b8f5a 100644
--- a/arch/arm/include/asm/hardware/coresight.h
+++ b/arch/arm/include/asm/hardware/coresight.h
@@ -21,18 +21,6 @@
 #define TRACER_RUNNING          BIT(TRACER_RUNNING_BIT)
 #define TRACER_CYCLE_ACC        BIT(TRACER_CYCLE_ACC_BIT)
 
-struct tracectx {
-        unsigned int    etb_bufsz;
-        void __iomem    *etb_regs;
-        void __iomem    *etm_regs;
-        unsigned long   flags;
-        int             ncmppairs;
-        int             etm_portsz;
-        struct device   *dev;
-        struct clk      *emu_clk;
-        struct mutex    mutex;
-};
-
 #define TRACER_TIMEOUT 10000
 
 #define etm_writel(t, v, x) \
@@ -112,10 +100,10 @@ struct tracectx {
 
 /* ETM status register, "ETM Architecture", 3.3.2 */
 #define ETMR_STATUS             (0x10)
-#define ETMST_OVERFLOW          (1 << 0)
-#define ETMST_PROGBIT           (1 << 1)
-#define ETMST_STARTSTOP         (1 << 2)
-#define ETMST_TRIGGER           (1 << 3)
+#define ETMST_OVERFLOW          BIT(0)
+#define ETMST_PROGBIT           BIT(1)
+#define ETMST_STARTSTOP         BIT(2)
+#define ETMST_TRIGGER           BIT(3)
 
 #define etm_progbit(t)          (etm_readl((t), ETMR_STATUS) & ETMST_PROGBIT)
 #define etm_started(t)          (etm_readl((t), ETMR_STATUS) & ETMST_STARTSTOP)
@@ -123,7 +111,7 @@ struct tracectx {
 
 #define ETMR_TRACEENCTRL2       0x1c
 #define ETMR_TRACEENCTRL        0x24
-#define ETMTE_INCLEXCL          (1 << 24)
+#define ETMTE_INCLEXCL          BIT(24)
 #define ETMR_TRACEENEVT         0x20
 #define ETMCTRL_OPTS            (ETMCTRL_DO_CPRT | \
                                 ETMCTRL_DATA_DO_ADDR | \
@@ -146,12 +134,12 @@ struct tracectx {
 #define ETBR_CTRL               0x20
 #define ETBR_FORMATTERCTRL      0x304
 #define ETBFF_ENFTC             1
-#define ETBFF_ENFCONT           (1 << 1)
-#define ETBFF_FONFLIN           (1 << 4)
-#define ETBFF_MANUAL_FLUSH      (1 << 6)
-#define ETBFF_TRIGIN            (1 << 8)
-#define ETBFF_TRIGEVT           (1 << 9)
-#define ETBFF_TRIGFL            (1 << 10)
+#define ETBFF_ENFCONT           BIT(1)
+#define ETBFF_FONFLIN           BIT(4)
+#define ETBFF_MANUAL_FLUSH      BIT(6)
+#define ETBFF_TRIGIN            BIT(8)
+#define ETBFF_TRIGEVT           BIT(9)
+#define ETBFF_TRIGFL            BIT(10)
 
 #define etb_writel(t, v, x) \
         (__raw_writel((v), (t)->etb_regs + (x)))
diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h
new file mode 100644
index 000000000000..4d8ae9d67abe
--- /dev/null
+++ b/arch/arm/include/asm/hw_breakpoint.h
@@ -0,0 +1,133 @@
+#ifndef _ARM_HW_BREAKPOINT_H
+#define _ARM_HW_BREAKPOINT_H
+
+#ifdef __KERNEL__
+
+struct task_struct;
+
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+
+struct arch_hw_breakpoint_ctrl {
+                u32 __reserved  : 9,
+                mismatch        : 1,
+                                : 9,
+                len             : 8,
+                type            : 2,
+                privilege       : 2,
+                enabled         : 1;
+};
+
+struct arch_hw_breakpoint {
+        u32     address;
+        u32     trigger;
+        struct perf_event *suspended_wp;
+        struct arch_hw_breakpoint_ctrl ctrl;
+};
+
+static inline u32 encode_ctrl_reg(struct arch_hw_breakpoint_ctrl ctrl)
+{
+        return (ctrl.mismatch << 22) | (ctrl.len << 5) | (ctrl.type << 3) |
+                (ctrl.privilege << 1) | ctrl.enabled;
+}
+
+static inline void decode_ctrl_reg(u32 reg,
+                                   struct arch_hw_breakpoint_ctrl *ctrl)
+{
+        ctrl->enabled   = reg & 0x1;
+        reg >>= 1;
+        ctrl->privilege = reg & 0x3;
+        reg >>= 2;
+        ctrl->type      = reg & 0x3;
+        reg >>= 2;
+        ctrl->len       = reg & 0xff;
+        reg >>= 17;
+        ctrl->mismatch  = reg & 0x1;
+}
+
+/* Debug architecture numbers. */
+#define ARM_DEBUG_ARCH_RESERVED 0       /* In case of ptrace ABI updates. */
+#define ARM_DEBUG_ARCH_V6       1
+#define ARM_DEBUG_ARCH_V6_1     2
+#define ARM_DEBUG_ARCH_V7_ECP14 3
+#define ARM_DEBUG_ARCH_V7_MM    4
+
+/* Breakpoint */
+#define ARM_BREAKPOINT_EXECUTE  0
+
+/* Watchpoints */
+#define ARM_BREAKPOINT_LOAD     1
+#define ARM_BREAKPOINT_STORE    2
+
+/* Privilege Levels */
+#define ARM_BREAKPOINT_PRIV     1
+#define ARM_BREAKPOINT_USER     2
+
+/* Lengths */
+#define ARM_BREAKPOINT_LEN_1    0x1
+#define ARM_BREAKPOINT_LEN_2    0x3
+#define ARM_BREAKPOINT_LEN_4    0xf
+#define ARM_BREAKPOINT_LEN_8    0xff
+
+/* Limits */
+#define ARM_MAX_BRP             16
+#define ARM_MAX_WRP             16
+#define ARM_MAX_HBP_SLOTS       (ARM_MAX_BRP + ARM_MAX_WRP)
+
+/* DSCR method of entry bits. */
+#define ARM_DSCR_MOE(x)                 ((x >> 2) & 0xf)
+#define ARM_ENTRY_BREAKPOINT            0x1
+#define ARM_ENTRY_ASYNC_WATCHPOINT      0x2
+#define ARM_ENTRY_SYNC_WATCHPOINT       0xa
+
+/* DSCR monitor/halting bits. */
+#define ARM_DSCR_HDBGEN         (1 << 14)
+#define ARM_DSCR_MDBGEN         (1 << 15)
+
+/* opcode2 numbers for the co-processor instructions. */
+#define ARM_OP2_BVR             4
+#define ARM_OP2_BCR             5
+#define ARM_OP2_WVR             6
+#define ARM_OP2_WCR             7
+
+/* Base register numbers for the debug registers. */
+#define ARM_BASE_BVR            64
+#define ARM_BASE_BCR            80
+#define ARM_BASE_WVR            96
+#define ARM_BASE_WCR            112
+
+/* Accessor macros for the debug registers. */
+#define ARM_DBG_READ(M, OP2, VAL) do {\
+        asm volatile("mrc p14, 0, %0, c0," #M ", " #OP2 : "=r" (VAL));\
+} while (0)
+
+#define ARM_DBG_WRITE(M, OP2, VAL) do {\
+        asm volatile("mcr p14, 0, %0, c0," #M ", " #OP2 : : "r" (VAL));\
+} while (0)
+
+struct notifier_block;
+struct perf_event;
+struct pmu;
+
+extern struct pmu perf_ops_bp;
+extern int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
+                                  int *gen_len, int *gen_type);
+extern int arch_check_bp_in_kernelspace(struct perf_event *bp);
+extern int arch_validate_hwbkpt_settings(struct perf_event *bp);
+extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
+                                           unsigned long val, void *data);
+
+extern u8 arch_get_debug_arch(void);
+extern u8 arch_get_max_wp_len(void);
+extern void clear_ptrace_hw_breakpoint(struct task_struct *tsk);
+
+int arch_install_hw_breakpoint(struct perf_event *bp);
+void arch_uninstall_hw_breakpoint(struct perf_event *bp);
+void hw_breakpoint_pmu_read(struct perf_event *bp);
+int hw_breakpoint_slots(int type);
+
+#else
+static inline void clear_ptrace_hw_breakpoint(struct task_struct *tsk) {}
+
+#endif  /* CONFIG_HAVE_HW_BREAKPOINT */
+#endif  /* __KERNEL__ */
+#endif  /* _ARM_HW_BREAKPOINT_H */
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h
index e4dfa69abb68..cbb0bc295d2b 100644
--- a/arch/arm/include/asm/module.h
+++ b/arch/arm/include/asm/module.h
@@ -7,20 +7,27 @@
 
 struct unwind_table;
 
-struct mod_arch_specific
-{
 #ifdef CONFIG_ARM_UNWIND
-        Elf_Shdr *unw_sec_init;
-        Elf_Shdr *unw_sec_devinit;
-        Elf_Shdr *unw_sec_core;
-        Elf_Shdr *sec_init_text;
-        Elf_Shdr *sec_devinit_text;
-        Elf_Shdr *sec_core_text;
-        struct unwind_table *unwind_init;
-        struct unwind_table *unwind_devinit;
-        struct unwind_table *unwind_core;
-#endif
+struct arm_unwind_mapping {
+        Elf_Shdr *unw_sec;
+        Elf_Shdr *sec_text;
+        struct unwind_table *unwind;
+};
+enum {
+        ARM_SEC_INIT,
+        ARM_SEC_DEVINIT,
+        ARM_SEC_CORE,
+        ARM_SEC_EXIT,
+        ARM_SEC_DEVEXIT,
+        ARM_SEC_MAX,
+};
+struct mod_arch_specific {
+        struct arm_unwind_mapping map[ARM_SEC_MAX];
 };
+#else
+struct mod_arch_specific {
+};
+#endif
 
 /*
  * Include the ARM architecture version.
diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h
index 48837e6d8887..b5799a3b7117 100644
--- a/arch/arm/include/asm/perf_event.h
+++ b/arch/arm/include/asm/perf_event.h
@@ -17,7 +17,7 @@
  * counter interrupts are regular interrupts and not an NMI. This
  * means that when we receive the interrupt we can call
  * perf_event_do_pending() that handles all of the work with
- * interrupts enabled.
+ * interrupts disabled.
  */
 static inline void
 set_perf_event_pending(void)
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index ab68cf1ef80f..a9672e8406a3 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -278,9 +278,24 @@ extern struct page *empty_zero_page;
 
 #define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
 
-#define set_pte_at(mm,addr,ptep,pteval) do { \
-        set_pte_ext(ptep, pteval, (addr) >= TASK_SIZE ? 0 : PTE_EXT_NG); \
- } while (0)
+#if __LINUX_ARM_ARCH__ < 6
+static inline void __sync_icache_dcache(pte_t pteval)
+{
+}
+#else
+extern void __sync_icache_dcache(pte_t pteval);
+#endif
+
+static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
+                              pte_t *ptep, pte_t pteval)
+{
+        if (addr >= TASK_SIZE)
+                set_pte_ext(ptep, pteval, 0);
+        else {
+                __sync_icache_dcache(pteval);
+                set_pte_ext(ptep, pteval, PTE_EXT_NG);
+        }
+}
 
 /*
  * The following only work if pte_present() is true.
@@ -290,8 +305,13 @@ extern struct page *empty_zero_page;
 #define pte_write(pte)          (pte_val(pte) & L_PTE_WRITE)
 #define pte_dirty(pte)          (pte_val(pte) & L_PTE_DIRTY)
 #define pte_young(pte)          (pte_val(pte) & L_PTE_YOUNG)
+#define pte_exec(pte)           (pte_val(pte) & L_PTE_EXEC)
 #define pte_special(pte)        (0)
 
+#define pte_present_user(pte) \
+        ((pte_val(pte) & (L_PTE_PRESENT | L_PTE_USER)) == \
+         (L_PTE_PRESENT | L_PTE_USER))
+
 #define PTE_BIT_FUNC(fn,op) \
 static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; }
 
@@ -317,6 +337,10 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
 #ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
 #define pgprot_dmacoherent(prot) \
         __pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_BUFFERABLE)
+#define __HAVE_PHYS_MEM_ACCESS_PROT
+struct file;
+extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+                                     unsigned long size, pgprot_t vma_prot);
 #else
 #define pgprot_dmacoherent(prot) \
         __pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_UNCACHED)
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 7bed3daf83b8..67357baaeeeb 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -19,6 +19,7 @@
 
 #ifdef __KERNEL__
 
+#include <asm/hw_breakpoint.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
 
@@ -41,6 +42,9 @@ struct debug_entry {
 struct debug_info {
         int                     nsaved;
         struct debug_entry      bp[2];
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+        struct perf_event       *hbp[ARM_MAX_HBP_SLOTS];
+#endif
 };
 
 struct thread_struct {
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index 7ce15eb15f72..783d50f32618 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -29,6 +29,8 @@
 #define PTRACE_SETCRUNCHREGS    26
 #define PTRACE_GETVFPREGS       27
 #define PTRACE_SETVFPREGS       28
+#define PTRACE_GETHBPREGS       29
+#define PTRACE_SETHBPREGS       30
 
 /*
  * PSR bits
diff --git a/arch/arm/include/asm/smp_mpidr.h b/arch/arm/include/asm/smp_mpidr.h
new file mode 100644
index 000000000000..6a9307d64900
--- /dev/null
+++ b/arch/arm/include/asm/smp_mpidr.h
@@ -0,0 +1,17 @@
+#ifndef ASMARM_SMP_MIDR_H
+#define ASMARM_SMP_MIDR_H
+
+#define hard_smp_processor_id()                                         \
+        ({                                                              \
+                unsigned int cpunum;                                    \
+                __asm__("\n"                                            \
+                        "1:     mrc p15, 0, %0, c0, c0, 5\n"            \
+                        "       .pushsection \".alt.smp.init\", \"a\"\n"\
+                        "       .long   1b\n"                           \
+                        "       mov     %0, #0\n"                       \
+                        "       .popsection"                            \
+                        : "=r" (cpunum));                               \
+                cpunum &= 0x0F;                                         \
+        })
+
+#endif
diff --git a/arch/arm/include/asm/smp_plat.h b/arch/arm/include/asm/smp_plat.h
index e6215305544a..f24c1b9e211d 100644
--- a/arch/arm/include/asm/smp_plat.h
+++ b/arch/arm/include/asm/smp_plat.h
@@ -7,15 +7,40 @@
 
 #include <asm/cputype.h>
 
+/*
+ * Return true if we are running on a SMP platform
+ */
+static inline bool is_smp(void)
+{
+#ifndef CONFIG_SMP
+        return false;
+#elif defined(CONFIG_SMP_ON_UP)
+        extern unsigned int smp_on_up;
+        return !!smp_on_up;
+#else
+        return true;
+#endif
+}
+
 /* all SMP configurations have the extended CPUID registers */
 static inline int tlb_ops_need_broadcast(void)
 {
+        if (!is_smp())
+                return 0;
+
         return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 2;
 }
 
+#if !defined(CONFIG_SMP) || __LINUX_ARM_ARCH__ >= 7
+#define cache_ops_need_broadcast()      0
+#else
 static inline int cache_ops_need_broadcast(void)
 {
+        if (!is_smp())
+                return 0;
+
         return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 1;
 }
+#endif
 
 #endif
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 8ba1ccf82a02..1120f18a6b17 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -85,6 +85,10 @@ void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
                                        struct pt_regs *),
                      int sig, int code, const char *name);
 
+void hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int,
+                                       struct pt_regs *),
+                     int sig, int code, const char *name);
+
 #define xchg(ptr,x) \
         ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
 
@@ -325,6 +329,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
 extern void disable_hlt(void);
 extern void enable_hlt(void);
 
+void cpu_idle_wait(void);
+
 #include <asm-generic/cmpxchg-local.h>
 
 #if __LINUX_ARM_ARCH__ < 6
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index 33b546ae72d4..ce7378ea15a2 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -70,6 +70,10 @@
 #undef _TLB
 #undef MULTI_TLB
 
+#ifdef CONFIG_SMP_ON_UP
+#define MULTI_TLB 1
+#endif
+
 #define v3_tlb_flags    (TLB_V3_FULL | TLB_V3_PAGE)
 
 #ifdef CONFIG_CPU_TLB_V3
@@ -185,17 +189,23 @@
 # define v6wbi_always_flags     (-1UL)
 #endif
 
-#ifdef CONFIG_SMP
-#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \
+#define v7wbi_tlb_flags_smp     (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \
                          TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID)
-#else
-#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+#define v7wbi_tlb_flags_up      (TLB_WB | TLB_DCLEAN | TLB_BTB | \
                          TLB_V6_U_FULL | TLB_V6_U_PAGE | TLB_V6_U_ASID)
-#endif
 
 #ifdef CONFIG_CPU_TLB_V7
-# define v7wbi_possible_flags   v7wbi_tlb_flags
-# define v7wbi_always_flags     v7wbi_tlb_flags
+
+# ifdef CONFIG_SMP_ON_UP
+#  define v7wbi_possible_flags  (v7wbi_tlb_flags_smp | v7wbi_tlb_flags_up)
+#  define v7wbi_always_flags    (v7wbi_tlb_flags_smp & v7wbi_tlb_flags_up)
+# elif defined(CONFIG_SMP)
+#  define v7wbi_possible_flags  v7wbi_tlb_flags_smp
+#  define v7wbi_always_flags    v7wbi_tlb_flags_smp
+# else
+#  define v7wbi_possible_flags  v7wbi_tlb_flags_up
+#  define v7wbi_always_flags    v7wbi_tlb_flags_up
+# endif
 # ifdef _TLB
 #  define MULTI_TLB 1
 # else
@@ -560,12 +570,20 @@ extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
 #endif
 
 /*
- * if PG_dcache_dirty is set for the page, we need to ensure that any
+ * If PG_dcache_clean is not set for the page, we need to ensure that any
  * cache entries for the kernels virtual memory range are written
- * back to the page.
+ * back to the page. On ARMv6 and later, the cache coherency is handled via
+ * the set_pte_at() function.
  */
+#if __LINUX_ARM_ARCH__ < 6
 extern void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
         pte_t *ptep);
+#else
+static inline void update_mmu_cache(struct vm_area_struct *vma,
+                                    unsigned long addr, pte_t *ptep)
+{
+}
+#endif
 
 #endif
 
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index d02cfb683487..c891eb76c0e3 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -393,6 +393,9 @@
 #define __NR_perf_event_open            (__NR_SYSCALL_BASE+364)
 #define __NR_recvmmsg                   (__NR_SYSCALL_BASE+365)
 #define __NR_accept4                    (__NR_SYSCALL_BASE+366)
+#define __NR_fanotify_init              (__NR_SYSCALL_BASE+367)
+#define __NR_fanotify_mark              (__NR_SYSCALL_BASE+368)
+#define __NR_prlimit64                  (__NR_SYSCALL_BASE+369)
 
 /*
  * The following SWIs are ARM private.
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 980b78e31328..5b9b268f4fbb 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_KGDB)		+= kgdb.o
 obj-$(CONFIG_ARM_UNWIND)        += unwind.o
 obj-$(CONFIG_HAVE_TCM)          += tcm.o
 obj-$(CONFIG_CRASH_DUMP)        += crash_dump.o
+obj-$(CONFIG_HAVE_HW_BREAKPOINT)        += hw_breakpoint.o
 
 obj-$(CONFIG_CRUNCH)            += crunch.o crunch-bits.o
 AFLAGS_crunch-bits.o            := -Wa,-mcpu=ep9312
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 8214bfebfaca..e5e1e5387678 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -165,6 +165,8 @@ EXPORT_SYMBOL(_find_next_bit_be);
 #endif
 
 #ifdef CONFIG_FUNCTION_TRACER
+#ifdef CONFIG_OLD_MCOUNT
 EXPORT_SYMBOL(mcount);
+#endif
 EXPORT_SYMBOL(__gnu_mcount_nc);
 #endif
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index afeb71fa72cb..5c26eccef998 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -376,6 +376,9 @@
                 CALL(sys_perf_event_open)
 /* 365 */       CALL(sys_recvmmsg)
                 CALL(sys_accept4)
+                CALL(sys_fanotify_init)
+                CALL(sys_fanotify_mark)
+                CALL(sys_prlimit64)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index bb8e93a76407..c09e3573c5de 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -46,7 +46,8 @@
          * this macro assumes that irqstat (r6) and base (r5) are
          * preserved from get_irqnr_and_base above
          */
-        test_for_ipi r0, r6, r5, lr
+        ALT_SMP(test_for_ipi r0, r6, r5, lr)
+        ALT_UP_B(9997f)
         movne   r0, sp
         adrne   lr, BSYM(1b)
         bne     do_IPI
@@ -57,6 +58,7 @@
         adrne   lr, BSYM(1b)
         bne     do_local_timer
 #endif
+9997:
 #endif
 
         .endm
@@ -965,11 +967,8 @@ kuser_cmpxchg_fixup:
         beq     1b
         rsbs    r0, r3, #0
         /* beware -- each __kuser slot must be 8 instructions max */
-#ifdef CONFIG_SMP
-        b       __kuser_memory_barrier
-#else
-        usr_ret lr
-#endif
+        ALT_SMP(b       __kuser_memory_barrier)
+        ALT_UP(usr_ret  lr)
 
 #endif
 
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index f05a35a59694..2d23ad985180 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -48,6 +48,8 @@ work_pending:
         beq     no_work_pending
         mov     r0, sp                          @ 'regs'
         mov     r2, why                         @ 'syscall'
+        tst     r1, #_TIF_SIGPENDING            @ delivering a signal?
+        movne   why, #0                         @ prevent further restarts
         bl      do_notify_resume
         b       ret_slow_syscall                @ Check work again
 
@@ -127,30 +129,58 @@ ENDPROC(ret_from_fork)
  * clobber the ip register.  This is OK because the ARM calling convention
  * allows it to be clobbered in subroutines and doesn't use it to hold
  * parameters.)
+ *
+ * When using dynamic ftrace, we patch out the mcount call by a "mov r0, r0"
+ * for the mcount case, and a "pop {lr}" for the __gnu_mcount_nc case (see
+ * arch/arm/kernel/ftrace.c).
  */
+
+#ifndef CONFIG_OLD_MCOUNT
+#if (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 4))
+#error Ftrace requires CONFIG_FRAME_POINTER=y with GCC older than 4.4.0.
+#endif
+#endif
+
 #ifdef CONFIG_DYNAMIC_FTRACE
-ENTRY(mcount)
+ENTRY(__gnu_mcount_nc)
+        mov     ip, lr
+        ldmia   sp!, {lr}
+        mov     pc, ip
+ENDPROC(__gnu_mcount_nc)
+
+ENTRY(ftrace_caller)
         stmdb   sp!, {r0-r3, lr}
         mov     r0, lr
         sub     r0, r0, #MCOUNT_INSN_SIZE
+        ldr     r1, [sp, #20]
 
-        .globl mcount_call
-mcount_call:
+        .global ftrace_call
+ftrace_call:
         bl      ftrace_stub
-        ldr     lr, [fp, #-4]                   @ restore lr
-        ldmia   sp!, {r0-r3, pc}
+        ldmia   sp!, {r0-r3, ip, lr}
+        mov     pc, ip
+ENDPROC(ftrace_caller)
 
-ENTRY(ftrace_caller)
+#ifdef CONFIG_OLD_MCOUNT
+ENTRY(mcount)
+        stmdb   sp!, {lr}
+        ldr     lr, [fp, #-4]
+        ldmia   sp!, {pc}
+ENDPROC(mcount)
+
+ENTRY(ftrace_caller_old)
         stmdb   sp!, {r0-r3, lr}
         ldr     r1, [fp, #-4]
         mov     r0, lr
         sub     r0, r0, #MCOUNT_INSN_SIZE
 
-        .globl ftrace_call
-ftrace_call:
+        .globl ftrace_call_old
+ftrace_call_old:
         bl      ftrace_stub
         ldr     lr, [fp, #-4]                   @ restore lr
         ldmia   sp!, {r0-r3, pc}
+ENDPROC(ftrace_caller_old)
+#endif
 
 #else
 
@@ -158,7 +188,7 @@ ENTRY(__gnu_mcount_nc)
         stmdb   sp!, {r0-r3, lr}
         ldr     r0, =ftrace_trace_function
         ldr     r2, [r0]
-        adr     r0, ftrace_stub
+        adr     r0, .Lftrace_stub
         cmp     r0, r2
         bne     gnu_trace
         ldmia   sp!, {r0-r3, ip, lr}
@@ -168,11 +198,19 @@ gnu_trace:
         ldr     r1, [sp, #20]                   @ lr of instrumented routine
         mov     r0, lr
         sub     r0, r0, #MCOUNT_INSN_SIZE
-        mov     lr, pc
+        adr     lr, BSYM(1f)
         mov     pc, r2
+1:
         ldmia   sp!, {r0-r3, ip, lr}
         mov     pc, ip
+ENDPROC(__gnu_mcount_nc)
 
+#ifdef CONFIG_OLD_MCOUNT
+/*
+ * This is under an ifdef in order to force link-time errors for people trying
+ * to build with !FRAME_POINTER with a GCC which doesn't use the new-style
+ * mcount.
+ */
 ENTRY(mcount)
         stmdb   sp!, {r0-r3, lr}
         ldr     r0, =ftrace_trace_function
@@ -191,12 +229,15 @@ trace:
         mov     pc, r2
         ldr     lr, [fp, #-4]                   @ restore lr
         ldmia   sp!, {r0-r3, pc}
+ENDPROC(mcount)
+#endif
 
 #endif /* CONFIG_DYNAMIC_FTRACE */
 
-        .globl ftrace_stub
-ftrace_stub:
+ENTRY(ftrace_stub)
+.Lftrace_stub:
         mov     pc, lr
+ENDPROC(ftrace_stub)
 
 #endif /* CONFIG_FUNCTION_TRACER */
 
@@ -418,11 +459,13 @@ ENDPROC(sys_clone_wrapper)
 
 sys_sigreturn_wrapper:
                 add     r0, sp, #S_OFF
+                mov     why, #0         @ prevent syscall restart handling
                 b       sys_sigreturn
 ENDPROC(sys_sigreturn_wrapper)
 
 sys_rt_sigreturn_wrapper:
                 add     r0, sp, #S_OFF
+                mov     why, #0         @ prevent syscall restart handling
                 b       sys_rt_sigreturn
 ENDPROC(sys_rt_sigreturn_wrapper)
 
diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c
index 33c7077174db..a48d51257988 100644
--- a/arch/arm/kernel/etm.c
+++ b/arch/arm/kernel/etm.c
@@ -30,6 +30,21 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexander Shishkin");
 
+/*
+ * ETM tracer state
+ */
+struct tracectx {
+        unsigned int    etb_bufsz;
+        void __iomem    *etb_regs;
+        void __iomem    *etm_regs;
+        unsigned long   flags;
+        int             ncmppairs;
+        int             etm_portsz;
+        struct device   *dev;
+        struct clk      *emu_clk;
+        struct mutex    mutex;
+};
+
 static struct tracectx tracer;
 
 static inline bool trace_isrunning(struct tracectx *t)
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index 0298286ad4ad..971ac8c36ea7 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -2,102 +2,194 @@
  * Dynamic function tracing support.
  *
  * Copyright (C) 2008 Abhishek Sagar <sagar.abhishek@gmail.com>
+ * Copyright (C) 2010 Rabin Vincent <rabin@rab.in>
  *
  * For licencing details, see COPYING.
  *
  * Defines low-level handling of mcount calls when the kernel
  * is compiled with the -pg flag. When using dynamic ftrace, the
- * mcount call-sites get patched lazily with NOP till they are
- * enabled. All code mutation routines here take effect atomically.
+ * mcount call-sites get patched with NOP till they are enabled.
+ * All code mutation routines here are called under stop_machine().
  */
 
 #include <linux/ftrace.h>
+#include <linux/uaccess.h>
 
 #include <asm/cacheflush.h>
 #include <asm/ftrace.h>
 
-#define PC_OFFSET      8
-#define BL_OPCODE      0xeb000000
-#define BL_OFFSET_MASK 0x00ffffff
+#ifdef CONFIG_THUMB2_KERNEL
+#define NOP             0xeb04f85d      /* pop.w {lr} */
+#else
+#define NOP             0xe8bd4000      /* pop {lr} */
+#endif
 
-static unsigned long bl_insn;
-static const unsigned long NOP = 0xe1a00000; /* mov r0, r0 */
+#ifdef CONFIG_OLD_MCOUNT
+#define OLD_MCOUNT_ADDR ((unsigned long) mcount)
+#define OLD_FTRACE_ADDR ((unsigned long) ftrace_caller_old)
 
-unsigned char *ftrace_nop_replace(void)
+#define OLD_NOP         0xe1a00000      /* mov r0, r0 */
+
+static unsigned long ftrace_nop_replace(struct dyn_ftrace *rec)
 {
-        return (char *)&NOP;
+        return rec->arch.old_mcount ? OLD_NOP : NOP;
 }
 
+static unsigned long adjust_address(struct dyn_ftrace *rec, unsigned long addr)
+{
+        if (!rec->arch.old_mcount)
+                return addr;
+
+        if (addr == MCOUNT_ADDR)
+                addr = OLD_MCOUNT_ADDR;
+        else if (addr == FTRACE_ADDR)
+                addr = OLD_FTRACE_ADDR;
+
+        return addr;
+}
+#else
+static unsigned long ftrace_nop_replace(struct dyn_ftrace *rec)
+{
+        return NOP;
+}
+
+static unsigned long adjust_address(struct dyn_ftrace *rec, unsigned long addr)
+{
+        return addr;
+}
+#endif
+
 /* construct a branch (BL) instruction to addr */
-unsigned char *ftrace_call_replace(unsigned long pc, unsigned long addr)
+#ifdef CONFIG_THUMB2_KERNEL
+static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr)
 {
+        unsigned long s, j1, j2, i1, i2, imm10, imm11;
+        unsigned long first, second;
         long offset;
 
-        offset = (long)addr - (long)(pc + PC_OFFSET);
+        offset = (long)addr - (long)(pc + 4);
+        if (offset < -16777216 || offset > 16777214) {
+                WARN_ON_ONCE(1);
+                return 0;
+        }
+
+        s       = (offset >> 24) & 0x1;
+        i1      = (offset >> 23) & 0x1;
+        i2      = (offset >> 22) & 0x1;
+        imm10   = (offset >> 12) & 0x3ff;
+        imm11   = (offset >>  1) & 0x7ff;
+
+        j1 = (!i1) ^ s;
+        j2 = (!i2) ^ s;
+
+        first = 0xf000 | (s << 10) | imm10;
+        second = 0xd000 | (j1 << 13) | (j2 << 11) | imm11;
+
+        return (second << 16) | first;
+}
+#else
+static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr)
+{
+        long offset;
+
+        offset = (long)addr - (long)(pc + 8);
         if (unlikely(offset < -33554432 || offset > 33554428)) {
                 /* Can't generate branches that far (from ARM ARM). Ftrace
                  * doesn't generate branches outside of kernel text.
                  */
                 WARN_ON_ONCE(1);
-                return NULL;
+                return 0;
         }
-        offset = (offset >> 2) & BL_OFFSET_MASK;
-        bl_insn = BL_OPCODE | offset;
-        return (unsigned char *)&bl_insn;
-}
 
-int ftrace_modify_code(unsigned long pc, unsigned char *old_code,
-                       unsigned char *new_code)
-{
-        unsigned long err = 0, replaced = 0, old, new;
+        offset = (offset >> 2) & 0x00ffffff;
 
-        old = *(unsigned long *)old_code;
-        new = *(unsigned long *)new_code;
+        return 0xeb000000 | offset;
+}
+#endif
 
-        __asm__ __volatile__ (
-                "1:  ldr    %1, [%2]  \n"
-                "    cmp    %1, %4    \n"
-                "2:  streq  %3, [%2]  \n"
-                "    cmpne  %1, %3    \n"
-                "    movne  %0, #2    \n"
-                "3:\n"
+static int ftrace_modify_code(unsigned long pc, unsigned long old,
+                              unsigned long new)
+{
+        unsigned long replaced;
 
-                ".pushsection .fixup, \"ax\"\n"
-                "4:  mov  %0, #1  \n"
-                "    b    3b      \n"
-                ".popsection\n"
+        if (probe_kernel_read(&replaced, (void *)pc, MCOUNT_INSN_SIZE))
+                return -EFAULT;
 
-                ".pushsection __ex_table, \"a\"\n"
-                "    .long 1b, 4b \n"
-                "    .long 2b, 4b \n"
-                ".popsection\n"
+        if (replaced != old)
+                return -EINVAL;
 
-                : "=r"(err), "=r"(replaced)
-                : "r"(pc), "r"(new), "r"(old), "0"(err), "1"(replaced)
-                : "memory");
+        if (probe_kernel_write((void *)pc, &new, MCOUNT_INSN_SIZE))
+                return -EPERM;
 
-        if (!err && (replaced == old))
-                flush_icache_range(pc, pc + MCOUNT_INSN_SIZE);
+        flush_icache_range(pc, pc + MCOUNT_INSN_SIZE);
 
-        return err;
+        return 0;
 }
 
 int ftrace_update_ftrace_func(ftrace_func_t func)
 {
-        int ret;
         unsigned long pc, old;
-        unsigned char *new;
+        unsigned long new;
+        int ret;
 
         pc = (unsigned long)&ftrace_call;
         memcpy(&old, &ftrace_call, MCOUNT_INSN_SIZE);
         new = ftrace_call_replace(pc, (unsigned long)func);
-        ret = ftrace_modify_code(pc, (unsigned char *)&old, new);
+
+        ret = ftrace_modify_code(pc, old, new);
+
+#ifdef CONFIG_OLD_MCOUNT
+        if (!ret) {
+                pc = (unsigned long)&ftrace_call_old;
+                memcpy(&old, &ftrace_call_old, MCOUNT_INSN_SIZE);
+                new = ftrace_call_replace(pc, (unsigned long)func);
+
+                ret = ftrace_modify_code(pc, old, new);
+        }
+#endif
+
+        return ret;
+}
+
+int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
+{
+        unsigned long new, old;
+        unsigned long ip = rec->ip;
+
+        old = ftrace_nop_replace(rec);
+        new = ftrace_call_replace(ip, adjust_address(rec, addr));
+
+        return ftrace_modify_code(rec->ip, old, new);
+}
+
+int ftrace_make_nop(struct module *mod,
+                    struct dyn_ftrace *rec, unsigned long addr)
+{
+        unsigned long ip = rec->ip;
+        unsigned long old;
+        unsigned long new;
+        int ret;
+
+        old = ftrace_call_replace(ip, adjust_address(rec, addr));
+        new = ftrace_nop_replace(rec);
+        ret = ftrace_modify_code(ip, old, new);
+
+#ifdef CONFIG_OLD_MCOUNT
+        if (ret == -EINVAL && addr == MCOUNT_ADDR) {
+                rec->arch.old_mcount = true;
+
+                old = ftrace_call_replace(ip, adjust_address(rec, addr));
+                new = ftrace_nop_replace(rec);
+                ret = ftrace_modify_code(ip, old, new);
+        }
+#endif
+
         return ret;
 }
 
-/* run from ftrace_init with irqs disabled */
 int __init ftrace_dyn_arch_init(void *data)
 {
-        ftrace_mcount_set(data);
+        *(unsigned long *)data = 0;
+
         return 0;
 }
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
index b9505aa267c0..58a3e632b6d5 100644
--- a/arch/arm/kernel/head-common.S
+++ b/arch/arm/kernel/head-common.S
@@ -20,7 +20,7 @@
 __switch_data:
         .long   __mmap_switched
         .long   __data_loc                      @ r4
-        .long   _data                           @ r5
+        .long   _sdata                          @ r5
         .long   __bss_start                     @ r6
         .long   _end                            @ r7
         .long   processor_id                    @ r4
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index eb62bf947212..b44d21e1e344 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -86,6 +86,9 @@ ENTRY(stext)
         movs    r8, r5                          @ invalid machine (r5=0)?
         beq     __error_a                       @ yes, error 'a'
         bl      __vet_atags
+#ifdef CONFIG_SMP_ON_UP
+        bl      __fixup_smp
+#endif
         bl      __create_page_tables
 
         /*
@@ -333,4 +336,51 @@ __create_page_tables:
 ENDPROC(__create_page_tables)
         .ltorg
 
+#ifdef CONFIG_SMP_ON_UP
+__fixup_smp:
+        mov     r7, #0x00070000
+        orr     r6, r7, #0xff000000     @ mask 0xff070000
+        orr     r7, r7, #0x41000000     @ val 0x41070000
+        and     r0, r9, r6
+        teq     r0, r7                  @ ARM CPU and ARMv6/v7?
+        bne     __fixup_smp_on_up       @ no, assume UP
+
+        orr     r6, r6, #0x0000ff00
+        orr     r6, r6, #0x000000f0     @ mask 0xff07fff0
+        orr     r7, r7, #0x0000b000
+        orr     r7, r7, #0x00000020     @ val 0x4107b020
+        and     r0, r9, r6
+        teq     r0, r7                  @ ARM 11MPCore?
+        moveq   pc, lr                  @ yes, assume SMP
+
+        mrc     p15, 0, r0, c0, c0, 5   @ read MPIDR
+        tst     r0, #1 << 31
+        movne   pc, lr                  @ bit 31 => SMP
+
+__fixup_smp_on_up:
+        adr     r0, 1f
+        ldmia   r0, {r3, r6, r7}
+        sub     r3, r0, r3
+        add     r6, r6, r3
+        add     r7, r7, r3
+2:      cmp     r6, r7
+        ldmia   r6!, {r0, r4}
+        strlo   r4, [r0, r3]
+        blo     2b
+        mov     pc, lr
+ENDPROC(__fixup_smp)
+
+1:      .word   .
+        .word   __smpalt_begin
+        .word   __smpalt_end
+
+        .pushsection .data
+        .globl  smp_on_up
+smp_on_up:
+        ALT_SMP(.long   1)
+        ALT_UP(.long    0)
+        .popsection
+
+#endif
+
 #include "head-common.S"
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
new file mode 100644
index 000000000000..54593b0c241b
--- /dev/null
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -0,0 +1,849 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) 2009, 2010 ARM Limited
+ *
+ * Author: Will Deacon <will.deacon@arm.com>
+ */
+
+/*
+ * HW_breakpoint: a unified kernel/user-space hardware breakpoint facility,
+ * using the CPU's debug registers.
+ */
+#define pr_fmt(fmt) "hw-breakpoint: " fmt
+
+#include <linux/errno.h>
+#include <linux/perf_event.h>
+#include <linux/hw_breakpoint.h>
+#include <linux/smp.h>
+
+#include <asm/cacheflush.h>
+#include <asm/cputype.h>
+#include <asm/current.h>
+#include <asm/hw_breakpoint.h>
+#include <asm/kdebug.h>
+#include <asm/system.h>
+#include <asm/traps.h>
+
+/* Breakpoint currently in use for each BRP. */
+static DEFINE_PER_CPU(struct perf_event *, bp_on_reg[ARM_MAX_BRP]);
+
+/* Watchpoint currently in use for each WRP. */
+static DEFINE_PER_CPU(struct perf_event *, wp_on_reg[ARM_MAX_WRP]);
+
+/* Number of BRP/WRP registers on this CPU. */
+static int core_num_brps;
+static int core_num_wrps;
+
+/* Debug architecture version. */
+static u8 debug_arch;
+
+/* Maximum supported watchpoint length. */
+static u8 max_watchpoint_len;
+
+/* Determine number of BRP registers available. */
+static int get_num_brps(void)
+{
+        u32 didr;
+        ARM_DBG_READ(c0, 0, didr);
+        return ((didr >> 24) & 0xf) + 1;
+}
+
+/* Determine number of WRP registers available. */
+static int get_num_wrps(void)
+{
+        /*
+         * FIXME: When a watchpoint fires, the only way to work out which
+         * watchpoint it was is by disassembling the faulting instruction
+         * and working out the address of the memory access.
+         *
+         * Furthermore, we can only do this if the watchpoint was precise
+         * since imprecise watchpoints prevent us from calculating register
+         * based addresses.
+         *
+         * For the time being, we only report 1 watchpoint register so we
+         * always know which watchpoint fired. In the future we can either
+         * add a disassembler and address generation emulator, or we can
+         * insert a check to see if the DFAR is set on watchpoint exception
+         * entry [the ARM ARM states that the DFAR is UNKNOWN, but
+         * experience shows that it is set on some implementations].
+         */
+
+#if 0
+        u32 didr, wrps;
+        ARM_DBG_READ(c0, 0, didr);
+        return ((didr >> 28) & 0xf) + 1;
+#endif
+
+        return 1;
+}
+
+int hw_breakpoint_slots(int type)
+{
+        /*
+         * We can be called early, so don't rely on
+         * our static variables being initialised.
+         */
+        switch (type) {
+        case TYPE_INST:
+                return get_num_brps();
+        case TYPE_DATA:
+                return get_num_wrps();
+        default:
+                pr_warning("unknown slot type: %d\n", type);
+                return 0;
+        }
+}
+
+/* Determine debug architecture. */
+static u8 get_debug_arch(void)
+{
+        u32 didr;
+
+        /* Do we implement the extended CPUID interface? */
+        if (((read_cpuid_id() >> 16) & 0xf) != 0xf) {
+                pr_warning("CPUID feature registers not supported. "
+                                "Assuming v6 debug is present.\n");
+                return ARM_DEBUG_ARCH_V6;
+        }
+
+        ARM_DBG_READ(c0, 0, didr);
+        return (didr >> 16) & 0xf;
+}
+
+/* Does this core support mismatch breakpoints? */
+static int core_has_mismatch_bps(void)
+{
+        return debug_arch >= ARM_DEBUG_ARCH_V7_ECP14 && core_num_brps > 1;
+}
+
+u8 arch_get_debug_arch(void)
+{
+        return debug_arch;
+}
+
+#define READ_WB_REG_CASE(OP2, M, VAL)           \
+        case ((OP2 << 4) + M):                  \
+                ARM_DBG_READ(c ## M, OP2, VAL); \
+                break
+
+#define WRITE_WB_REG_CASE(OP2, M, VAL)          \
+        case ((OP2 << 4) + M):                  \
+                ARM_DBG_WRITE(c ## M, OP2, VAL);\
+                break
+
+#define GEN_READ_WB_REG_CASES(OP2, VAL)         \
+        READ_WB_REG_CASE(OP2, 0, VAL);          \
+        READ_WB_REG_CASE(OP2, 1, VAL);          \
+        READ_WB_REG_CASE(OP2, 2, VAL);          \
+        READ_WB_REG_CASE(OP2, 3, VAL);          \
+        READ_WB_REG_CASE(OP2, 4, VAL);          \
+        READ_WB_REG_CASE(OP2, 5, VAL);          \
+        READ_WB_REG_CASE(OP2, 6, VAL);          \
+        READ_WB_REG_CASE(OP2, 7, VAL);          \
+        READ_WB_REG_CASE(OP2, 8, VAL);          \
+        READ_WB_REG_CASE(OP2, 9, VAL);          \
+        READ_WB_REG_CASE(OP2, 10, VAL);         \
+        READ_WB_REG_CASE(OP2, 11, VAL);         \
+        READ_WB_REG_CASE(OP2, 12, VAL);         \
+        READ_WB_REG_CASE(OP2, 13, VAL);         \
+        READ_WB_REG_CASE(OP2, 14, VAL);         \
+        READ_WB_REG_CASE(OP2, 15, VAL)
+
+#define GEN_WRITE_WB_REG_CASES(OP2, VAL)        \
+        WRITE_WB_REG_CASE(OP2, 0, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 1, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 2, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 3, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 4, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 5, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 6, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 7, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 8, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 9, VAL);         \
+        WRITE_WB_REG_CASE(OP2, 10, VAL);        \
+        WRITE_WB_REG_CASE(OP2, 11, VAL);        \
+        WRITE_WB_REG_CASE(OP2, 12, VAL);        \
+        WRITE_WB_REG_CASE(OP2, 13, VAL);        \
+        WRITE_WB_REG_CASE(OP2, 14, VAL);        \
+        WRITE_WB_REG_CASE(OP2, 15, VAL)
+
+static u32 read_wb_reg(int n)
+{
+        u32 val = 0;
+
+        switch (n) {
+        GEN_READ_WB_REG_CASES(ARM_OP2_BVR, val);
+        GEN_READ_WB_REG_CASES(ARM_OP2_BCR, val);
+        GEN_READ_WB_REG_CASES(ARM_OP2_WVR, val);
+        GEN_READ_WB_REG_CASES(ARM_OP2_WCR, val);
+        default:
+                pr_warning("attempt to read from unknown breakpoint "
+                                "register %d\n", n);
+        }
+
+        return val;
+}
+
+static void write_wb_reg(int n, u32 val)
+{
+        switch (n) {
+        GEN_WRITE_WB_REG_CASES(ARM_OP2_BVR, val);
+        GEN_WRITE_WB_REG_CASES(ARM_OP2_BCR, val);
+        GEN_WRITE_WB_REG_CASES(ARM_OP2_WVR, val);
+        GEN_WRITE_WB_REG_CASES(ARM_OP2_WCR, val);
+        default:
+                pr_warning("attempt to write to unknown breakpoint "
+                                "register %d\n", n);
+        }
+        isb();
+}
+
+/*
+ * In order to access the breakpoint/watchpoint control registers,
+ * we must be running in debug monitor mode. Unfortunately, we can
+ * be put into halting debug mode at any time by an external debugger
+ * but there is nothing we can do to prevent that.
+ */
+static int enable_monitor_mode(void)
+{
+        u32 dscr;
+        int ret = 0;
+
+        ARM_DBG_READ(c1, 0, dscr);
+
+        /* Ensure that halting mode is disabled. */
+        if (WARN_ONCE(dscr & ARM_DSCR_HDBGEN, "halting debug mode enabled."
+                                "Unable to access hardware resources.")) {
+                ret = -EPERM;
+                goto out;
+        }
+
+        /* Write to the corresponding DSCR. */
+        switch (debug_arch) {
+        case ARM_DEBUG_ARCH_V6:
+        case ARM_DEBUG_ARCH_V6_1:
+                ARM_DBG_WRITE(c1, 0, (dscr | ARM_DSCR_MDBGEN));
+                break;
+        case ARM_DEBUG_ARCH_V7_ECP14:
+                ARM_DBG_WRITE(c2, 2, (dscr | ARM_DSCR_MDBGEN));
+                break;
+        default:
+                ret = -ENODEV;
+                goto out;
+        }
+
+        /* Check that the write made it through. */
+        ARM_DBG_READ(c1, 0, dscr);
+        if (WARN_ONCE(!(dscr & ARM_DSCR_MDBGEN),
+                                "failed to enable monitor mode.")) {
+                ret = -EPERM;
+        }
+
+out:
+        return ret;
+}
+
+/*
+ * Check if 8-bit byte-address select is available.
+ * This clobbers WRP 0.
+ */
+static u8 get_max_wp_len(void)
+{
+        u32 ctrl_reg;
+        struct arch_hw_breakpoint_ctrl ctrl;
+        u8 size = 4;
+
+        if (debug_arch < ARM_DEBUG_ARCH_V7_ECP14)
+                goto out;
+
+        if (enable_monitor_mode())
+                goto out;
+
+        memset(&ctrl, 0, sizeof(ctrl));
+        ctrl.len = ARM_BREAKPOINT_LEN_8;
+        ctrl_reg = encode_ctrl_reg(ctrl);
+
+        write_wb_reg(ARM_BASE_WVR, 0);
+        write_wb_reg(ARM_BASE_WCR, ctrl_reg);
+        if ((read_wb_reg(ARM_BASE_WCR) & ctrl_reg) == ctrl_reg)
+                size = 8;
+
+out:
+        return size;
+}
+
+u8 arch_get_max_wp_len(void)
+{
+        return max_watchpoint_len;
+}
+
+/*
+ * Handler for reactivating a suspended watchpoint when the single
+ * step `mismatch' breakpoint is triggered.
+ */
+static void wp_single_step_handler(struct perf_event *bp, int unused,
+                                   struct perf_sample_data *data,
+                                   struct pt_regs *regs)
+{
+        perf_event_enable(counter_arch_bp(bp)->suspended_wp);
+        unregister_hw_breakpoint(bp);
+}
+
+static int bp_is_single_step(struct perf_event *bp)
+{
+        return bp->overflow_handler == wp_single_step_handler;
+}
+
+/*
+ * Install a perf counter breakpoint.
+ */
+int arch_install_hw_breakpoint(struct perf_event *bp)
+{
+        struct arch_hw_breakpoint *info = counter_arch_bp(bp);
+        struct perf_event **slot, **slots;
+        int i, max_slots, ctrl_base, val_base, ret = 0;
+
+        /* Ensure that we are in monitor mode and halting mode is disabled. */
+        ret = enable_monitor_mode();
+        if (ret)
+                goto out;
+
+        if (info->ctrl.type == ARM_BREAKPOINT_EXECUTE) {
+                /* Breakpoint */
+                ctrl_base = ARM_BASE_BCR;
+                val_base = ARM_BASE_BVR;
+                slots = __get_cpu_var(bp_on_reg);
+                max_slots = core_num_brps - 1;
+
+                if (bp_is_single_step(bp)) {
+                        info->ctrl.mismatch = 1;
+                        i = max_slots;
+                        slots[i] = bp;
+                        goto setup;
+                }
+        } else {
+                /* Watchpoint */
+                ctrl_base = ARM_BASE_WCR;
+                val_base = ARM_BASE_WVR;
+                slots = __get_cpu_var(wp_on_reg);
+                max_slots = core_num_wrps;
+        }
+
+        for (i = 0; i < max_slots; ++i) {
+                slot = &slots[i];
+
+                if (!*slot) {
+                        *slot = bp;
+                        break;
+                }
+        }
+
+        if (WARN_ONCE(i == max_slots, "Can't find any breakpoint slot")) {
+                ret = -EBUSY;
+                goto out;
+        }
+
+setup:
+        /* Setup the address register. */
+        write_wb_reg(val_base + i, info->address);
+
+        /* Setup the control register. */
+        write_wb_reg(ctrl_base + i, encode_ctrl_reg(info->ctrl) | 0x1);
+
+out:
+        return ret;
+}
+
+void arch_uninstall_hw_breakpoint(struct perf_event *bp)
+{
+        struct arch_hw_breakpoint *info = counter_arch_bp(bp);
+        struct perf_event **slot, **slots;
+        int i, max_slots, base;
+
+        if (info->ctrl.type == ARM_BREAKPOINT_EXECUTE) {
+                /* Breakpoint */
+                base = ARM_BASE_BCR;
+                slots = __get_cpu_var(bp_on_reg);
+                max_slots = core_num_brps - 1;
+
+                if (bp_is_single_step(bp)) {
+                        i = max_slots;
+                        slots[i] = NULL;
+                        goto reset;
+                }
+        } else {
+                /* Watchpoint */
+                base = ARM_BASE_WCR;
+                slots = __get_cpu_var(wp_on_reg);
+                max_slots = core_num_wrps;
+        }
+
+        /* Remove the breakpoint. */
+        for (i = 0; i < max_slots; ++i) {
+                slot = &slots[i];
+
+                if (*slot == bp) {
+                        *slot = NULL;
+                        break;
+                }
+        }
+
+        if (WARN_ONCE(i == max_slots, "Can't find any breakpoint slot"))
+                return;
+
+reset:
+        /* Reset the control register. */
+        write_wb_reg(base + i, 0);
+}
+
+static int get_hbp_len(u8 hbp_len)
+{
+        unsigned int len_in_bytes = 0;
+
+        switch (hbp_len) {
+        case ARM_BREAKPOINT_LEN_1:
+                len_in_bytes = 1;
+                break;
+        case ARM_BREAKPOINT_LEN_2:
+                len_in_bytes = 2;
+                break;
+        case ARM_BREAKPOINT_LEN_4:
+                len_in_bytes = 4;
+                break;
+        case ARM_BREAKPOINT_LEN_8:
+                len_in_bytes = 8;
+                break;
+        }
+
+        return len_in_bytes;
+}
+
+/*
+ * Check whether bp virtual address is in kernel space.
+ */
+int arch_check_bp_in_kernelspace(struct perf_event *bp)
+{
+        unsigned int len;
+        unsigned long va;
+        struct arch_hw_breakpoint *info = counter_arch_bp(bp);
+
+        va = info->address;
+        len = get_hbp_len(info->ctrl.len);
+
+        return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
+}
+
+/*
+ * Extract generic type and length encodings from an arch_hw_breakpoint_ctrl.
+ * Hopefully this will disappear when ptrace can bypass the conversion
+ * to generic breakpoint descriptions.
+ */
+int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
+                           int *gen_len, int *gen_type)
+{
+        /* Type */
+        switch (ctrl.type) {
+        case ARM_BREAKPOINT_EXECUTE:
+                *gen_type = HW_BREAKPOINT_X;
+                break;
+        case ARM_BREAKPOINT_LOAD:
+                *gen_type = HW_BREAKPOINT_R;
+                break;
+        case ARM_BREAKPOINT_STORE:
+                *gen_type = HW_BREAKPOINT_W;
+                break;
+        case ARM_BREAKPOINT_LOAD | ARM_BREAKPOINT_STORE:
+                *gen_type = HW_BREAKPOINT_RW;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* Len */
+        switch (ctrl.len) {
+        case ARM_BREAKPOINT_LEN_1:
+                *gen_len = HW_BREAKPOINT_LEN_1;
+                break;
+        case ARM_BREAKPOINT_LEN_2:
+                *gen_len = HW_BREAKPOINT_LEN_2;
+                break;
+        case ARM_BREAKPOINT_LEN_4:
+                *gen_len = HW_BREAKPOINT_LEN_4;
+                break;
+        case ARM_BREAKPOINT_LEN_8:
+                *gen_len = HW_BREAKPOINT_LEN_8;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+/*
+ * Construct an arch_hw_breakpoint from a perf_event.
+ */
+static int arch_build_bp_info(struct perf_event *bp)
+{
+        struct arch_hw_breakpoint *info = counter_arch_bp(bp);
+
+        /* Type */
+        switch (bp->attr.bp_type) {
+        case HW_BREAKPOINT_X:
+                info->ctrl.type = ARM_BREAKPOINT_EXECUTE;
+                break;
+        case HW_BREAKPOINT_R:
+                info->ctrl.type = ARM_BREAKPOINT_LOAD;
+                break;
+        case HW_BREAKPOINT_W:
+                info->ctrl.type = ARM_BREAKPOINT_STORE;
+                break;
+        case HW_BREAKPOINT_RW:
+                info->ctrl.type = ARM_BREAKPOINT_LOAD | ARM_BREAKPOINT_STORE;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* Len */
+        switch (bp->attr.bp_len) {
+        case HW_BREAKPOINT_LEN_1:
+                info->ctrl.len = ARM_BREAKPOINT_LEN_1;
+                break;
+        case HW_BREAKPOINT_LEN_2:
+                info->ctrl.len = ARM_BREAKPOINT_LEN_2;
+                break;
+        case HW_BREAKPOINT_LEN_4:
+                info->ctrl.len = ARM_BREAKPOINT_LEN_4;
+                break;
+        case HW_BREAKPOINT_LEN_8:
+                info->ctrl.len = ARM_BREAKPOINT_LEN_8;
+                if ((info->ctrl.type != ARM_BREAKPOINT_EXECUTE)
+                        && max_watchpoint_len >= 8)
+                        break;
+        default:
+                return -EINVAL;
+        }
+
+        /* Address */
+        info->address = bp->attr.bp_addr;
+
+        /* Privilege */
+        info->ctrl.privilege = ARM_BREAKPOINT_USER;
+        if (arch_check_bp_in_kernelspace(bp) && !bp_is_single_step(bp))
+                info->ctrl.privilege |= ARM_BREAKPOINT_PRIV;
+
+        /* Enabled? */
+        info->ctrl.enabled = !bp->attr.disabled;
+
+        /* Mismatch */
+        info->ctrl.mismatch = 0;
+
+        return 0;
+}
+
+/*
+ * Validate the arch-specific HW Breakpoint register settings.
+ */
+int arch_validate_hwbkpt_settings(struct perf_event *bp)
+{
+        struct arch_hw_breakpoint *info = counter_arch_bp(bp);
+        int ret = 0;
+        u32 bytelen, max_len, offset, alignment_mask = 0x3;
+
+        /* Build the arch_hw_breakpoint. */
+        ret = arch_build_bp_info(bp);
+        if (ret)
+                goto out;
+
+        /* Check address alignment. */
+        if (info->ctrl.len == ARM_BREAKPOINT_LEN_8)
+                alignment_mask = 0x7;
+        if (info->address & alignment_mask) {
+                /*
+                 * Try to fix the alignment. This may result in a length
+                 * that is too large, so we must check for that.
+                 */
+                bytelen = get_hbp_len(info->ctrl.len);
+                max_len = info->ctrl.type == ARM_BREAKPOINT_EXECUTE ? 4 :
+                                max_watchpoint_len;
+
+                if (max_len >= 8)
+                        offset = info->address & 0x7;
+                else
+                        offset = info->address & 0x3;
+
+                if (bytelen > (1 << ((max_len - (offset + 1)) >> 1))) {
+                        ret = -EFBIG;
+                        goto out;
+                }
+
+                info->ctrl.len <<= offset;
+                info->address &= ~offset;
+
+                pr_debug("breakpoint alignment fixup: length = 0x%x, "
+                        "address = 0x%x\n", info->ctrl.len, info->address);
+        }
+
+        /*
+         * Currently we rely on an overflow handler to take
+         * care of single-stepping the breakpoint when it fires.
+         * In the case of userspace breakpoints on a core with V7 debug,
+         * we can use the mismatch feature as a poor-man's hardware single-step.
+         */
+        if (WARN_ONCE(!bp->overflow_handler &&
+                (arch_check_bp_in_kernelspace(bp) || !core_has_mismatch_bps()),
+                        "overflow handler required but none found")) {
+                ret = -EINVAL;
+                goto out;
+        }
+out:
+        return ret;
+}
+
+static void update_mismatch_flag(int idx, int flag)
+{
+        struct perf_event *bp = __get_cpu_var(bp_on_reg[idx]);
+        struct arch_hw_breakpoint *info;
+
+        if (bp == NULL)
+                return;
+
+        info = counter_arch_bp(bp);
+
+        /* Update the mismatch field to enter/exit `single-step' mode */
+        if (!bp->overflow_handler && info->ctrl.mismatch != flag) {
+                info->ctrl.mismatch = flag;
+                write_wb_reg(ARM_BASE_BCR + idx, encode_ctrl_reg(info->ctrl) | 0x1);
+        }
+}
+
+static void watchpoint_handler(unsigned long unknown, struct pt_regs *regs)
+{
+        int i;
+        struct perf_event *bp, **slots = __get_cpu_var(wp_on_reg);
+        struct arch_hw_breakpoint *info;
+        struct perf_event_attr attr;
+
+        /* Without a disassembler, we can only handle 1 watchpoint. */
+        BUG_ON(core_num_wrps > 1);
+
+        hw_breakpoint_init(&attr);
+        attr.bp_addr    = regs->ARM_pc & ~0x3;
+        attr.bp_len     = HW_BREAKPOINT_LEN_4;
+        attr.bp_type    = HW_BREAKPOINT_X;
+
+        for (i = 0; i < core_num_wrps; ++i) {
+                rcu_read_lock();
+
+                if (slots[i] == NULL) {
+                        rcu_read_unlock();
+                        continue;
+                }
+
+                /*
+                 * The DFAR is an unknown value. Since we only allow a
+                 * single watchpoint, we can set the trigger to the lowest
+                 * possible faulting address.
+                 */
+                info = counter_arch_bp(slots[i]);
+                info->trigger = slots[i]->attr.bp_addr;
+                pr_debug("watchpoint fired: address = 0x%x\n", info->trigger);
+                perf_bp_event(slots[i], regs);
+
+                /*
+                 * If no overflow handler is present, insert a temporary
+                 * mismatch breakpoint so we can single-step over the
+                 * watchpoint trigger.
+                 */
+                if (!slots[i]->overflow_handler) {
+                        bp = register_user_hw_breakpoint(&attr,
+                                                         wp_single_step_handler,
+                                                         current);
+                        counter_arch_bp(bp)->suspended_wp = slots[i];
+                        perf_event_disable(slots[i]);
+                }
+
+                rcu_read_unlock();
+        }
+}
+
+static void breakpoint_handler(unsigned long unknown, struct pt_regs *regs)
+{
+        int i;
+        int mismatch;
+        u32 ctrl_reg, val, addr;
+        struct perf_event *bp, **slots = __get_cpu_var(bp_on_reg);
+        struct arch_hw_breakpoint *info;
+        struct arch_hw_breakpoint_ctrl ctrl;
+
+        /* The exception entry code places the amended lr in the PC. */
+        addr = regs->ARM_pc;
+
+        for (i = 0; i < core_num_brps; ++i) {
+                rcu_read_lock();
+
+                bp = slots[i];
+
+                if (bp == NULL) {
+                        rcu_read_unlock();
+                        continue;
+                }
+
+                mismatch = 0;
+
+                /* Check if the breakpoint value matches. */
+                val = read_wb_reg(ARM_BASE_BVR + i);
+                if (val != (addr & ~0x3))
+                        goto unlock;
+
+                /* Possible match, check the byte address select to confirm. */
+                ctrl_reg = read_wb_reg(ARM_BASE_BCR + i);
+                decode_ctrl_reg(ctrl_reg, &ctrl);
+                if ((1 << (addr & 0x3)) & ctrl.len) {
+                        mismatch = 1;
+                        info = counter_arch_bp(bp);
+                        info->trigger = addr;
+                }
+
+unlock:
+                if ((mismatch && !info->ctrl.mismatch) || bp_is_single_step(bp)) {
+                        pr_debug("breakpoint fired: address = 0x%x\n", addr);
+                        perf_bp_event(bp, regs);
+                }
+
+                update_mismatch_flag(i, mismatch);
+                rcu_read_unlock();
+        }
+}
+
+/*
+ * Called from either the Data Abort Handler [watchpoint] or the
+ * Prefetch Abort Handler [breakpoint].
+ */
+static int hw_breakpoint_pending(unsigned long addr, unsigned int fsr,
+                                 struct pt_regs *regs)
+{
+        int ret = 1; /* Unhandled fault. */
+        u32 dscr;
+
+        /* We only handle watchpoints and hardware breakpoints. */
+        ARM_DBG_READ(c1, 0, dscr);
+
+        /* Perform perf callbacks. */
+        switch (ARM_DSCR_MOE(dscr)) {
+        case ARM_ENTRY_BREAKPOINT:
+                breakpoint_handler(addr, regs);
+                break;
+        case ARM_ENTRY_ASYNC_WATCHPOINT:
+                WARN_ON("Asynchronous watchpoint exception taken. "
+                        "Debugging results may be unreliable");
+        case ARM_ENTRY_SYNC_WATCHPOINT:
+                watchpoint_handler(addr, regs);
+                break;
+        default:
+                goto out;
+        }
+
+        ret = 0;
+out:
+        return ret;
+}
+
+/*
+ * One-time initialisation.
+ */
+static void __init reset_ctrl_regs(void *unused)
+{
+        int i;
+
+        if (enable_monitor_mode())
+                return;
+
+        for (i = 0; i < core_num_brps; ++i) {
+                write_wb_reg(ARM_BASE_BCR + i, 0UL);
+                write_wb_reg(ARM_BASE_BVR + i, 0UL);
+        }
+
+        for (i = 0; i < core_num_wrps; ++i) {
+                write_wb_reg(ARM_BASE_WCR + i, 0UL);
+                write_wb_reg(ARM_BASE_WVR + i, 0UL);
+        }
+}
+
+static int __init arch_hw_breakpoint_init(void)
+{
+        int ret = 0;
+        u32 dscr;
+
+        debug_arch = get_debug_arch();
+
+        if (debug_arch > ARM_DEBUG_ARCH_V7_ECP14) {
+                pr_info("debug architecture 0x%x unsupported.\n", debug_arch);
+                ret = -ENODEV;
+                goto out;
+        }
+
+        /* Determine how many BRPs/WRPs are available. */
+        core_num_brps = get_num_brps();
+        core_num_wrps = get_num_wrps();
+
+        pr_info("found %d breakpoint and %d watchpoint registers.\n",
+                        core_num_brps, core_num_wrps);
+
+        if (core_has_mismatch_bps())
+                pr_info("1 breakpoint reserved for watchpoint single-step.\n");
+
+        ARM_DBG_READ(c1, 0, dscr);
+        if (dscr & ARM_DSCR_HDBGEN) {
+                pr_warning("halting debug mode enabled. Assuming maximum "
+                                "watchpoint size of 4 bytes.");
+        } else {
+                /* Work out the maximum supported watchpoint length. */
+                max_watchpoint_len = get_max_wp_len();
+                pr_info("maximum watchpoint size is %u bytes.\n",
+                                max_watchpoint_len);
+
+                /*
+                 * Reset the breakpoint resources. We assume that a halting
+                 * debugger will leave the world in a nice state for us.
+                 */
+                smp_call_function(reset_ctrl_regs, NULL, 1);
+                reset_ctrl_regs(NULL);
+        }
+
+        /* Register debug fault handler. */
+        hook_fault_code(2, hw_breakpoint_pending, SIGTRAP, TRAP_HWBKPT,
+                        "watchpoint debug exception");
+        hook_ifault_code(2, hw_breakpoint_pending, SIGTRAP, TRAP_HWBKPT,
+                        "breakpoint debug exception");
+
+out:
+        return ret;
+}
+arch_initcall(arch_hw_breakpoint_init);
+
+void hw_breakpoint_pmu_read(struct perf_event *bp)
+{
+}
+
+/*
+ * Dummy function to register with die_notifier.
+ */
+int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
+                                        unsigned long val, void *data)
+{
+        return NOTIFY_DONE;
+}
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 6b4605893f1e..d9bd786ce23d 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -69,20 +69,31 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 {
 #ifdef CONFIG_ARM_UNWIND
         Elf_Shdr *s, *sechdrs_end = sechdrs + hdr->e_shnum;
+        struct arm_unwind_mapping *maps = mod->arch.map;
 
         for (s = sechdrs; s < sechdrs_end; s++) {
-                if (strcmp(".ARM.exidx.init.text", secstrings + s->sh_name) == 0)
-                        mod->arch.unw_sec_init = s;
-                else if (strcmp(".ARM.exidx.devinit.text", secstrings + s->sh_name) == 0)
-                        mod->arch.unw_sec_devinit = s;
-                else if (strcmp(".ARM.exidx", secstrings + s->sh_name) == 0)
-                        mod->arch.unw_sec_core = s;
-                else if (strcmp(".init.text", secstrings + s->sh_name) == 0)
-                        mod->arch.sec_init_text = s;
-                else if (strcmp(".devinit.text", secstrings + s->sh_name) == 0)
-                        mod->arch.sec_devinit_text = s;
-                else if (strcmp(".text", secstrings + s->sh_name) == 0)
-                        mod->arch.sec_core_text = s;
+                char const *secname = secstrings + s->sh_name;
+
+                if (strcmp(".ARM.exidx.init.text", secname) == 0)
+                        maps[ARM_SEC_INIT].unw_sec = s;
+                else if (strcmp(".ARM.exidx.devinit.text", secname) == 0)
+                        maps[ARM_SEC_DEVINIT].unw_sec = s;
+                else if (strcmp(".ARM.exidx", secname) == 0)
+                        maps[ARM_SEC_CORE].unw_sec = s;
+                else if (strcmp(".ARM.exidx.exit.text", secname) == 0)
+                        maps[ARM_SEC_EXIT].unw_sec = s;
+                else if (strcmp(".ARM.exidx.devexit.text", secname) == 0)
+                        maps[ARM_SEC_DEVEXIT].unw_sec = s;
+                else if (strcmp(".init.text", secname) == 0)
+                        maps[ARM_SEC_INIT].sec_text = s;
+                else if (strcmp(".devinit.text", secname) == 0)
+                        maps[ARM_SEC_DEVINIT].sec_text = s;
+                else if (strcmp(".text", secname) == 0)
+                        maps[ARM_SEC_CORE].sec_text = s;
+                else if (strcmp(".exit.text", secname) == 0)
+                        maps[ARM_SEC_EXIT].sec_text = s;
+                else if (strcmp(".devexit.text", secname) == 0)
+                        maps[ARM_SEC_DEVEXIT].sec_text = s;
         }
 #endif
         return 0;
@@ -292,31 +303,22 @@ apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
 #ifdef CONFIG_ARM_UNWIND
 static void register_unwind_tables(struct module *mod)
 {
-        if (mod->arch.unw_sec_init && mod->arch.sec_init_text)
-                mod->arch.unwind_init =
-                        unwind_table_add(mod->arch.unw_sec_init->sh_addr,
-                                         mod->arch.unw_sec_init->sh_size,
-                                         mod->arch.sec_init_text->sh_addr,
-                                         mod->arch.sec_init_text->sh_size);
-        if (mod->arch.unw_sec_devinit && mod->arch.sec_devinit_text)
-                mod->arch.unwind_devinit =
-                        unwind_table_add(mod->arch.unw_sec_devinit->sh_addr,
-                                         mod->arch.unw_sec_devinit->sh_size,
-                                         mod->arch.sec_devinit_text->sh_addr,
-                                         mod->arch.sec_devinit_text->sh_size);
-        if (mod->arch.unw_sec_core && mod->arch.sec_core_text)
-                mod->arch.unwind_core =
-                        unwind_table_add(mod->arch.unw_sec_core->sh_addr,
-                                         mod->arch.unw_sec_core->sh_size,
-                                         mod->arch.sec_core_text->sh_addr,
-                                         mod->arch.sec_core_text->sh_size);
+        int i;
+        for (i = 0; i < ARM_SEC_MAX; ++i) {
+                struct arm_unwind_mapping *map = &mod->arch.map[i];
+                if (map->unw_sec && map->sec_text)
+                        map->unwind = unwind_table_add(map->unw_sec->sh_addr,
+                                                       map->unw_sec->sh_size,
+                                                       map->sec_text->sh_addr,
+                                                       map->sec_text->sh_size);
+        }
 }
 
 static void unregister_unwind_tables(struct module *mod)
 {
-        unwind_table_del(mod->arch.unwind_init);
-        unwind_table_del(mod->arch.unwind_devinit);
-        unwind_table_del(mod->arch.unwind_core);
+        int i = ARM_SEC_MAX;
+        while (--i >= 0)
+                unwind_table_del(mod->arch.map[i].unwind);
 }
 #else
 static inline void register_unwind_tables(struct module *mod) { }
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 417c392ddf1c..ecbb0288e5dd 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -319,8 +319,8 @@ validate_event(struct cpu_hw_events *cpuc,
 {
         struct hw_perf_event fake_event = event->hw;
 
-        if (event->pmu && event->pmu != &pmu)
-                return 0;
+        if (event->pmu != &pmu || event->state <= PERF_EVENT_STATE_OFF)
+                return 1;
 
         return armpmu->get_event_idx(cpuc, &fake_event) >= 0;
 }
@@ -1041,8 +1041,8 @@ armv6pmu_handle_irq(int irq_num,
         /*
          * Handle the pending perf events.
          *
-         * Note: this call *must* be run with interrupts enabled. For
-         * platforms that can have the PMU interrupts raised as a PMI, this
+         * Note: this call *must* be run with interrupts disabled. For
+         * platforms that can have the PMU interrupts raised as an NMI, this
          * will not work.
          */
         perf_event_do_pending();
@@ -2017,8 +2017,8 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
         /*
          * Handle the pending perf events.
          *
-         * Note: this call *must* be run with interrupts enabled. For
-         * platforms that can have the PMU interrupts raised as a PMI, this
+         * Note: this call *must* be run with interrupts disabled. For
+         * platforms that can have the PMU interrupts raised as an NMI, this
          * will not work.
          */
         perf_event_do_pending();
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 401e38be1f78..3af34bf4f4df 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -29,6 +29,7 @@
 #include <linux/utsname.h>
 #include <linux/uaccess.h>
 #include <linux/random.h>
+#include <linux/hw_breakpoint.h>
 
 #include <asm/cacheflush.h>
 #include <asm/leds.h>
@@ -135,6 +136,25 @@ EXPORT_SYMBOL(pm_power_off);
 void (*arm_pm_restart)(char str, const char *cmd) = arm_machine_restart;
 EXPORT_SYMBOL_GPL(arm_pm_restart);
 
+static void do_nothing(void *unused)
+{
+}
+
+/*
+ * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
+ * pm_idle and update to new pm_idle value. Required while changing pm_idle
+ * handler on SMP systems.
+ *
+ * Caller must have changed pm_idle to the new value before the call. Old
+ * pm_idle value will not be used by any CPU after the return of this function.
+ */
+void cpu_idle_wait(void)
+{
+        smp_mb();
+        /* kick all the CPUs so that they exit out of pm_idle */
+        smp_call_function(do_nothing, NULL, 1);
+}
+EXPORT_SYMBOL_GPL(cpu_idle_wait);
 
 /*
  * This is our default idle handler.  We need to disable
@@ -317,6 +337,8 @@ void flush_thread(void)
         struct thread_info *thread = current_thread_info();
         struct task_struct *tsk = current;
 
+        flush_ptrace_hw_breakpoint(tsk);
+
         memset(thread->used_cp, 0, sizeof(thread->used_cp));
         memset(&tsk->thread.debug, 0, sizeof(struct debug_info));
         memset(&thread->fpstate, 0, sizeof(union fp_state));
@@ -345,6 +367,8 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
         thread->cpu_context.sp = (unsigned long)childregs;
         thread->cpu_context.pc = (unsigned long)ret_from_fork;
 
+        clear_ptrace_hw_breakpoint(p);
+
         if (clone_flags & CLONE_SETTLS)
                 thread->tp_value = regs->ARM_r3;
 
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index f99d489822d5..e0cb6370ed14 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -19,6 +19,8 @@
 #include <linux/init.h>
 #include <linux/signal.h>
 #include <linux/uaccess.h>
+#include <linux/perf_event.h>
+#include <linux/hw_breakpoint.h>
 
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -847,6 +849,232 @@ static int ptrace_setvfpregs(struct task_struct *tsk, void __user *data)
 }
 #endif
 
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+/*
+ * Convert a virtual register number into an index for a thread_info
+ * breakpoint array. Breakpoints are identified using positive numbers
+ * whilst watchpoints are negative. The registers are laid out as pairs
+ * of (address, control), each pair mapping to a unique hw_breakpoint struct.
+ * Register 0 is reserved for describing resource information.
+ */
+static int ptrace_hbp_num_to_idx(long num)
+{
+        if (num < 0)
+                num = (ARM_MAX_BRP << 1) - num;
+        return (num - 1) >> 1;
+}
+
+/*
+ * Returns the virtual register number for the address of the
+ * breakpoint at index idx.
+ */
+static long ptrace_hbp_idx_to_num(int idx)
+{
+        long mid = ARM_MAX_BRP << 1;
+        long num = (idx << 1) + 1;
+        return num > mid ? mid - num : num;
+}
+
+/*
+ * Handle hitting a HW-breakpoint.
+ */
+static void ptrace_hbptriggered(struct perf_event *bp, int unused,
+                                     struct perf_sample_data *data,
+                                     struct pt_regs *regs)
+{
+        struct arch_hw_breakpoint *bkpt = counter_arch_bp(bp);
+        long num;
+        int i;
+        siginfo_t info;
+
+        for (i = 0; i < ARM_MAX_HBP_SLOTS; ++i)
+                if (current->thread.debug.hbp[i] == bp)
+                        break;
+
+        num = (i == ARM_MAX_HBP_SLOTS) ? 0 : ptrace_hbp_idx_to_num(i);
+
+        info.si_signo   = SIGTRAP;
+        info.si_errno   = (int)num;
+        info.si_code    = TRAP_HWBKPT;
+        info.si_addr    = (void __user *)(bkpt->trigger);
+
+        force_sig_info(SIGTRAP, &info, current);
+}
+
+/*
+ * Set ptrace breakpoint pointers to zero for this task.
+ * This is required in order to prevent child processes from unregistering
+ * breakpoints held by their parent.
+ */
+void clear_ptrace_hw_breakpoint(struct task_struct *tsk)
+{
+        memset(tsk->thread.debug.hbp, 0, sizeof(tsk->thread.debug.hbp));
+}
+
+/*
+ * Unregister breakpoints from this task and reset the pointers in
+ * the thread_struct.
+ */
+void flush_ptrace_hw_breakpoint(struct task_struct *tsk)
+{
+        int i;
+        struct thread_struct *t = &tsk->thread;
+
+        for (i = 0; i < ARM_MAX_HBP_SLOTS; i++) {
+                if (t->debug.hbp[i]) {
+                        unregister_hw_breakpoint(t->debug.hbp[i]);
+                        t->debug.hbp[i] = NULL;
+                }
+        }
+}
+
+static u32 ptrace_get_hbp_resource_info(void)
+{
+        u8 num_brps, num_wrps, debug_arch, wp_len;
+        u32 reg = 0;
+
+        num_brps        = hw_breakpoint_slots(TYPE_INST);
+        num_wrps        = hw_breakpoint_slots(TYPE_DATA);
+        debug_arch      = arch_get_debug_arch();
+        wp_len          = arch_get_max_wp_len();
+
+        reg             |= debug_arch;
+        reg             <<= 8;
+        reg             |= wp_len;
+        reg             <<= 8;
+        reg             |= num_wrps;
+        reg             <<= 8;
+        reg             |= num_brps;
+
+        return reg;
+}
+
+static struct perf_event *ptrace_hbp_create(struct task_struct *tsk, int type)
+{
+        struct perf_event_attr attr;
+
+        ptrace_breakpoint_init(&attr);
+
+        /* Initialise fields to sane defaults. */
+        attr.bp_addr    = 0;
+        attr.bp_len     = HW_BREAKPOINT_LEN_4;
+        attr.bp_type    = type;
+        attr.disabled   = 1;
+
+        return register_user_hw_breakpoint(&attr, ptrace_hbptriggered, tsk);
+}
+
+static int ptrace_gethbpregs(struct task_struct *tsk, long num,
+                             unsigned long  __user *data)
+{
+        u32 reg;
+        int idx, ret = 0;
+        struct perf_event *bp;
+        struct arch_hw_breakpoint_ctrl arch_ctrl;
+
+        if (num == 0) {
+                reg = ptrace_get_hbp_resource_info();
+        } else {
+                idx = ptrace_hbp_num_to_idx(num);
+                if (idx < 0 || idx >= ARM_MAX_HBP_SLOTS) {
+                        ret = -EINVAL;
+                        goto out;
+                }
+
+                bp = tsk->thread.debug.hbp[idx];
+                if (!bp) {
+                        reg = 0;
+                        goto put;
+                }
+
+                arch_ctrl = counter_arch_bp(bp)->ctrl;
+
+                /*
+                 * Fix up the len because we may have adjusted it
+                 * to compensate for an unaligned address.
+                 */
+                while (!(arch_ctrl.len & 0x1))
+                        arch_ctrl.len >>= 1;
+
+                if (idx & 0x1)
+                        reg = encode_ctrl_reg(arch_ctrl);
+                else
+                        reg = bp->attr.bp_addr;
+        }
+
+put:
+        if (put_user(reg, data))
+                ret = -EFAULT;
+
+out:
+        return ret;
+}
+
+static int ptrace_sethbpregs(struct task_struct *tsk, long num,
+                             unsigned long __user *data)
+{
+        int idx, gen_len, gen_type, implied_type, ret = 0;
+        u32 user_val;
+        struct perf_event *bp;
+        struct arch_hw_breakpoint_ctrl ctrl;
+        struct perf_event_attr attr;
+
+        if (num == 0)
+                goto out;
+        else if (num < 0)
+                implied_type = HW_BREAKPOINT_RW;
+        else
+                implied_type = HW_BREAKPOINT_X;
+
+        idx = ptrace_hbp_num_to_idx(num);
+        if (idx < 0 || idx >= ARM_MAX_HBP_SLOTS) {
+                ret = -EINVAL;
+                goto out;
+        }
+
+        if (get_user(user_val, data)) {
+                ret = -EFAULT;
+                goto out;
+        }
+
+        bp = tsk->thread.debug.hbp[idx];
+        if (!bp) {
+                bp = ptrace_hbp_create(tsk, implied_type);
+                if (IS_ERR(bp)) {
+                        ret = PTR_ERR(bp);
+                        goto out;
+                }
+                tsk->thread.debug.hbp[idx] = bp;
+        }
+
+        attr = bp->attr;
+
+        if (num & 0x1) {
+                /* Address */
+                attr.bp_addr    = user_val;
+        } else {
+                /* Control */
+                decode_ctrl_reg(user_val, &ctrl);
+                ret = arch_bp_generic_fields(ctrl, &gen_len, &gen_type);
+                if (ret)
+                        goto out;
+
+                if ((gen_type & implied_type) != gen_type) {
+                                ret = -EINVAL;
+                                goto out;
+                }
+
+                attr.bp_len     = gen_len;
+                attr.bp_type    = gen_type;
+                attr.disabled   = !ctrl.enabled;
+        }
+
+        ret = modify_user_hw_breakpoint(bp, &attr);
+out:
+        return ret;
+}
+#endif
+
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
         int ret;
@@ -916,6 +1144,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         break;
 #endif
 
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+                case PTRACE_GETHBPREGS:
+                        ret = ptrace_gethbpregs(child, addr,
+                                                (unsigned long __user *)data);
+                        break;
+                case PTRACE_SETHBPREGS:
+                        ret = ptrace_sethbpregs(child, addr,
+                                                (unsigned long __user *)data);
+                        break;
+#endif
+
                 default:
                         ret = ptrace_request(child, request, addr, data);
                         break;
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index d5231ae7355a..336f14e0e5c2 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -36,6 +36,7 @@
 #include <asm/procinfo.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
+#include <asm/smp_plat.h>
 #include <asm/mach-types.h>
 #include <asm/cacheflush.h>
 #include <asm/cachetype.h>
@@ -238,6 +239,35 @@ int cpu_architecture(void)
         return cpu_arch;
 }
 
+static int cpu_has_aliasing_icache(unsigned int arch)
+{
+        int aliasing_icache;
+        unsigned int id_reg, num_sets, line_size;
+
+        /* arch specifies the register format */
+        switch (arch) {
+        case CPU_ARCH_ARMv7:
+                asm("mcr        p15, 2, %0, c0, c0, 0 @ set CSSELR"
+                    : /* No output operands */
+                    : "r" (1));
+                isb();
+                asm("mrc        p15, 1, %0, c0, c0, 0 @ read CCSIDR"
+                    : "=r" (id_reg));
+                line_size = 4 << ((id_reg & 0x7) + 2);
+                num_sets = ((id_reg >> 13) & 0x7fff) + 1;
+                aliasing_icache = (line_size * num_sets) > PAGE_SIZE;
+                break;
+        case CPU_ARCH_ARMv6:
+                aliasing_icache = read_cpuid_cachetype() & (1 << 11);
+                break;
+        default:
+                /* I-cache aliases will be handled by D-cache aliasing code */
+                aliasing_icache = 0;
+        }
+
+        return aliasing_icache;
+}
+
 static void __init cacheid_init(void)
 {
         unsigned int cachetype = read_cpuid_cachetype();
@@ -249,10 +279,15 @@ static void __init cacheid_init(void)
                         cacheid = CACHEID_VIPT_NONALIASING;
                         if ((cachetype & (3 << 14)) == 1 << 14)
                                 cacheid |= CACHEID_ASID_TAGGED;
-                } else if (cachetype & (1 << 23))
+                        else if (cpu_has_aliasing_icache(CPU_ARCH_ARMv7))
+                                cacheid |= CACHEID_VIPT_I_ALIASING;
+                } else if (cachetype & (1 << 23)) {
                         cacheid = CACHEID_VIPT_ALIASING;
-                else
+                } else {
                         cacheid = CACHEID_VIPT_NONALIASING;
+                        if (cpu_has_aliasing_icache(CPU_ARCH_ARMv6))
+                                cacheid |= CACHEID_VIPT_I_ALIASING;
+                }
         } else {
                 cacheid = CACHEID_VIVT;
         }
@@ -263,7 +298,7 @@ static void __init cacheid_init(void)
                 cache_is_vipt_nonaliasing() ? "VIPT nonaliasing" : "unknown",
                 cache_is_vivt() ? "VIVT" :
                 icache_is_vivt_asid_tagged() ? "VIVT ASID tagged" :
-                cache_is_vipt_aliasing() ? "VIPT aliasing" :
+                icache_is_vipt_aliasing() ? "VIPT aliasing" :
                 cache_is_vipt_nonaliasing() ? "VIPT nonaliasing" : "unknown");
 }
 
@@ -490,7 +525,7 @@ request_standard_resources(struct meminfo *mi, struct machine_desc *mdesc)
 
         kernel_code.start   = virt_to_phys(_text);
         kernel_code.end     = virt_to_phys(_etext - 1);
-        kernel_data.start   = virt_to_phys(_data);
+        kernel_data.start   = virt_to_phys(_sdata);
         kernel_data.end     = virt_to_phys(_end - 1);
 
         for (i = 0; i < mi->nr_banks; i++) {
@@ -825,7 +860,8 @@ void __init setup_arch(char **cmdline_p)
         request_standard_resources(&meminfo, mdesc);
 
 #ifdef CONFIG_SMP
-        smp_init_cpus();
+        if (is_smp())
+                smp_init_cpus();
 #endif
         reserve_crashkernel();
 
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 40dc74f2b27f..32e16da5cbce 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -567,7 +567,8 @@ void smp_send_stop(void)
 {
         cpumask_t mask = cpu_online_map;
         cpu_clear(smp_processor_id(), mask);
-        send_ipi_message(&mask, IPI_CPU_STOP);
+        if (!cpus_empty(mask))
+                send_ipi_message(&mask, IPI_CPU_STOP);
 }
 
 /*
diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c
index dd81a918c106..2a161765f6d5 100644
--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -146,6 +146,8 @@ static struct unwind_idx *unwind_find_idx(unsigned long addr)
                             addr < table->end_addr) {
                                 idx = search_index(addr, table->start,
                                                    table->stop - 1);
+                                /* Move-to-front to exploit common traces */
+                                list_move(&table->list, &unwind_tables);
                                 break;
                         }
                 }
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index b16c07914b55..065d35de0e01 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -40,6 +40,11 @@ SECTIONS
                 __tagtable_begin = .;
                         *(.taglist.init)
                 __tagtable_end = .;
+#ifdef CONFIG_SMP_ON_UP
+                __smpalt_begin = .;
+                        *(.alt.smp.init)
+                __smpalt_end = .;
+#endif
 
                 INIT_SETUP(16)
 
@@ -104,8 +109,6 @@ SECTIONS
 
         RO_DATA(PAGE_SIZE)
 
-        _etext = .;                     /* End of text and rodata section */
-
 #ifdef CONFIG_ARM_UNWIND
         /*
          * Stack unwinding tables
@@ -123,6 +126,8 @@ SECTIONS
         }
 #endif
 
+        _etext = .;                     /* End of text and rodata section */
+
 #ifdef CONFIG_XIP_KERNEL
         __data_loc = ALIGN(4);          /* location in binary */
         . = PAGE_OFFSET + TEXT_OFFSET;
@@ -237,6 +242,12 @@ SECTIONS
 
         /* Default discards */
         DISCARDS
+
+#ifndef CONFIG_SMP_ON_UP
+        /DISCARD/ : {
+                *(.alt.smp.init)
+        }
+#endif
 }
 
 /*
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 939bccd70569..ca33862b4bf4 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -248,6 +248,12 @@ config MACH_CPU9260
           Select this if you are using a Eukrea Electromatique's
           CPU9260 Board <http://www.eukrea.com/>
 
+config MACH_FLEXIBITY
+        bool "Flexibity Connect board"
+        help
+          Select this if you are using Flexibity Connect board
+          <http://www.flexibity.com>
+
 endif
 
 # ----------------------------------------------------------
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index ca2ac003f41f..7cbe06d7cee9 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_MACH_USB_A9260)	+= board-usb-a9260.o
 obj-$(CONFIG_MACH_QIL_A9260)    += board-qil-a9260.o
 obj-$(CONFIG_MACH_AFEB9260)     += board-afeb-9260v1.o
 obj-$(CONFIG_MACH_CPU9260)      += board-cpu9krea.o
+obj-$(CONFIG_MACH_FLEXIBITY)    += board-flexibity.o
 
 # AT91SAM9261 board-specific support
 obj-$(CONFIG_MACH_AT91SAM9261EK) += board-sam9261ek.o
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 753c0d31a3d3..c67b47f1c0fd 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -121,8 +121,8 @@ static struct clk ssc1_clk = {
         .pmc_mask       = 1 << AT91SAM9G45_ID_SSC1,
         .type           = CLK_TYPE_PERIPHERAL,
 };
-static struct clk tcb_clk = {
-        .name           = "tcb_clk",
+static struct clk tcb0_clk = {
+        .name           = "tcb0_clk",
         .pmc_mask       = 1 << AT91SAM9G45_ID_TCB,
         .type           = CLK_TYPE_PERIPHERAL,
 };
@@ -192,6 +192,14 @@ static struct clk ohci_clk = {
         .parent         = &uhphs_clk,
 };
 
+/* One additional fake clock for second TC block */
+static struct clk tcb1_clk = {
+        .name           = "tcb1_clk",
+        .pmc_mask       = 0,
+        .type           = CLK_TYPE_PERIPHERAL,
+        .parent         = &tcb0_clk,
+};
+
 static struct clk *periph_clocks[] __initdata = {
         &pioA_clk,
         &pioB_clk,
@@ -208,7 +216,7 @@ static struct clk *periph_clocks[] __initdata = {
         &spi1_clk,
         &ssc0_clk,
         &ssc1_clk,
-        &tcb_clk,
+        &tcb0_clk,
         &pwm_clk,
         &tsc_clk,
         &dma_clk,
@@ -221,6 +229,7 @@ static struct clk *periph_clocks[] __initdata = {
         &mmc1_clk,
         // irq0
         &ohci_clk,
+        &tcb1_clk,
 };
 
 /*
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 809114d5a5a6..1276babf84d5 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -46,7 +46,7 @@ static struct resource hdmac_resources[] = {
                 .end    = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
                 .flags  = IORESOURCE_MEM,
         },
-        [2] = {
+        [1] = {
                 .start  = AT91SAM9G45_ID_DMA,
                 .end    = AT91SAM9G45_ID_DMA,
                 .flags  = IORESOURCE_IRQ,
@@ -426,7 +426,7 @@ static struct i2c_gpio_platform_data pdata_i2c0 = {
         .sda_is_open_drain      = 1,
         .scl_pin                = AT91_PIN_PA21,
         .scl_is_open_drain      = 1,
-        .udelay                 = 2,            /* ~100 kHz */
+        .udelay                 = 5,            /* ~100 kHz */
 };
 
 static struct platform_device at91sam9g45_twi0_device = {
@@ -440,7 +440,7 @@ static struct i2c_gpio_platform_data pdata_i2c1 = {
         .sda_is_open_drain      = 1,
         .scl_pin                = AT91_PIN_PB11,
         .scl_is_open_drain      = 1,
-        .udelay                 = 2,            /* ~100 kHz */
+        .udelay                 = 5,            /* ~100 kHz */
 };
 
 static struct platform_device at91sam9g45_twi1_device = {
@@ -835,9 +835,9 @@ static struct platform_device at91sam9g45_tcb1_device = {
 static void __init at91_add_device_tc(void)
 {
         /* this chip has one clock and irq for all six TC channels */
-        at91_clock_associate("tcb_clk", &at91sam9g45_tcb0_device.dev, "t0_clk");
+        at91_clock_associate("tcb0_clk", &at91sam9g45_tcb0_device.dev, "t0_clk");
         platform_device_register(&at91sam9g45_tcb0_device);
-        at91_clock_associate("tcb_clk", &at91sam9g45_tcb1_device.dev, "t0_clk");
+        at91_clock_associate("tcb1_clk", &at91sam9g45_tcb1_device.dev, "t0_clk");
         platform_device_register(&at91sam9g45_tcb1_device);
 }
 #else
diff --git a/arch/arm/mach-at91/board-flexibity.c b/arch/arm/mach-at91/board-flexibity.c
new file mode 100644
index 000000000000..216c8ca985f4
--- /dev/null
+++ b/arch/arm/mach-at91/board-flexibity.c
@@ -0,0 +1,164 @@
+/*
+ * linux/arch/arm/mach-at91/board-flexibity.c
+ *
+ *  Copyright (C) 2010 Flexibity
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2006 Atmel
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/input.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/board.h>
+
+#include "generic.h"
+
+static void __init flexibity_map_io(void)
+{
+        /* Initialize processor: 18.432 MHz crystal */
+        at91sam9260_initialize(18432000);
+
+        /* DBGU on ttyS0. (Rx & Tx only) */
+        at91_register_uart(0, 0, 0);
+
+        /* set serial console to ttyS0 (ie, DBGU) */
+        at91_set_serial_console(0);
+}
+
+static void __init flexibity_init_irq(void)
+{
+        at91sam9260_init_interrupts(NULL);
+}
+
+/* USB Host port */
+static struct at91_usbh_data __initdata flexibity_usbh_data = {
+        .ports          = 2,
+};
+
+/* USB Device port */
+static struct at91_udc_data __initdata flexibity_udc_data = {
+        .vbus_pin       = AT91_PIN_PC5,
+        .pullup_pin     = 0,            /* pull-up driven by UDC */
+};
+
+/* SPI devices */
+static struct spi_board_info flexibity_spi_devices[] = {
+        {       /* DataFlash chip */
+                .modalias       = "mtd_dataflash",
+                .chip_select    = 1,
+                .max_speed_hz   = 15 * 1000 * 1000,
+                .bus_num        = 0,
+        },
+};
+
+/* MCI (SD/MMC) */
+static struct at91_mmc_data __initdata flexibity_mmc_data = {
+        .slot_b         = 0,
+        .wire4          = 1,
+        .det_pin        = AT91_PIN_PC9,
+        .wp_pin         = AT91_PIN_PC4,
+};
+
+/* LEDs */
+static struct gpio_led flexibity_leds[] = {
+        {
+                .name                   = "usb1:green",
+                .gpio                   = AT91_PIN_PA12,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb1:red",
+                .gpio                   = AT91_PIN_PA13,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb2:green",
+                .gpio                   = AT91_PIN_PB26,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb2:red",
+                .gpio                   = AT91_PIN_PB27,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb3:green",
+                .gpio                   = AT91_PIN_PC8,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb3:red",
+                .gpio                   = AT91_PIN_PC6,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb4:green",
+                .gpio                   = AT91_PIN_PB4,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        },
+        {
+                .name                   = "usb4:red",
+                .gpio                   = AT91_PIN_PB5,
+                .active_low             = 1,
+                .default_trigger        = "default-on",
+        }
+};
+
+static void __init flexibity_board_init(void)
+{
+        /* Serial */
+        at91_add_device_serial();
+        /* USB Host */
+        at91_add_device_usbh(&flexibity_usbh_data);
+        /* USB Device */
+        at91_add_device_udc(&flexibity_udc_data);
+        /* SPI */
+        at91_add_device_spi(flexibity_spi_devices,
+                ARRAY_SIZE(flexibity_spi_devices));
+        /* MMC */
+        at91_add_device_mmc(0, &flexibity_mmc_data);
+        /* LEDs */
+        at91_gpio_leds(flexibity_leds, ARRAY_SIZE(flexibity_leds));
+}
+
+MACHINE_START(FLEXIBITY, "Flexibity Connect")
+        /* Maintainer: Maxim Osipov */
+        .phys_io        = AT91_BASE_SYS,
+        .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
+        .boot_params    = AT91_SDRAM_BASE + 0x100,
+        .timer          = &at91sam926x_timer,
+        .map_io         = flexibity_map_io,
+        .init_irq       = flexibity_init_irq,
+        .init_machine   = flexibity_board_init,
+MACHINE_END
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index c4c8865d52d7..65eb0943194f 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -93,11 +93,12 @@ static struct resource dm9000_resource[] = {
                 .start  = AT91_PIN_PC11,
                 .end    = AT91_PIN_PC11,
                 .flags  = IORESOURCE_IRQ
+                        | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
         }
 };
 
 static struct dm9000_plat_data dm9000_platdata = {
-        .flags          = DM9000_PLATF_16BITONLY,
+        .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
 };
 
 static struct platform_device dm9000_device = {
@@ -168,17 +169,6 @@ static struct at91_udc_data __initdata ek_udc_data = {
 
 
 /*
- * MCI (SD/MMC)
- */
-static struct at91_mmc_data __initdata ek_mmc_data = {
-        .wire4          = 1,
-//      .det_pin        = ... not connected
-//      .wp_pin         = ... not connected
-//      .vcc_pin        = ... not connected
-};
-
-
-/*
  * NAND flash
  */
 static struct mtd_partition __initdata ek_nand_partition[] = {
@@ -246,6 +236,10 @@ static void __init ek_add_device_nand(void)
         at91_add_device_nand(&ek_nand_data);
 }
 
+/*
+ * SPI related devices
+ */
+#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 
 /*
  * ADS7846 Touchscreen
@@ -356,6 +350,19 @@ static struct spi_board_info ek_spi_devices[] = {
 #endif
 };
 
+#else /* CONFIG_SPI_ATMEL_* */
+/* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
+
+/*
+ * MCI (SD/MMC)
+ * det_pin, wp_pin and vcc_pin are not connected
+ */
+static struct at91_mmc_data __initdata ek_mmc_data = {
+        .wire4          = 1,
+};
+
+#endif /* CONFIG_SPI_ATMEL_* */
+
 
 /*
  * LCD Controller
diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index 7f7da439341f..7525cee3983f 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -501,7 +501,8 @@ postcore_initcall(at91_clk_debugfs_init);
 int __init clk_register(struct clk *clk)
 {
         if (clk_is_peripheral(clk)) {
-                clk->parent = &mck;
+                if (!clk->parent)
+                        clk->parent = &mck;
                 clk->mode = pmc_periph_mode;
                 list_add_tail(&clk->node, &clocks);
         }
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 3d996b659ff4..9be261beae7d 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -769,8 +769,7 @@ static struct map_desc dm355_io_desc[] = {
                 .virtual        = SRAM_VIRT,
                 .pfn            = __phys_to_pfn(0x00010000),
                 .length         = SZ_32K,
-                /* MT_MEMORY_NONCACHED requires supersection alignment */
-                .type           = MT_DEVICE,
+                .type           = MT_MEMORY_NONCACHED,
         },
 };
 
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 6b6f4c643709..7781e35daec3 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -969,8 +969,7 @@ static struct map_desc dm365_io_desc[] = {
                 .virtual        = SRAM_VIRT,
                 .pfn            = __phys_to_pfn(0x00010000),
                 .length         = SZ_32K,
-                /* MT_MEMORY_NONCACHED requires supersection alignment */
-                .type           = MT_DEVICE,
+                .type           = MT_MEMORY_NONCACHED,
         },
 };
 
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 40fec315c99a..5e5b0a7831fb 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -653,8 +653,7 @@ static struct map_desc dm644x_io_desc[] = {
                 .virtual        = SRAM_VIRT,
                 .pfn            = __phys_to_pfn(0x00008000),
                 .length         = SZ_16K,
-                /* MT_MEMORY_NONCACHED requires supersection alignment */
-                .type           = MT_DEVICE,
+                .type           = MT_MEMORY_NONCACHED,
         },
 };
 
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index e4a3df1872ac..26e8a9c7f50b 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -737,8 +737,7 @@ static struct map_desc dm646x_io_desc[] = {
                 .virtual        = SRAM_VIRT,
                 .pfn            = __phys_to_pfn(0x00010000),
                 .length         = SZ_32K,
-                /* MT_MEMORY_NONCACHED requires supersection alignment */
-                .type           = MT_DEVICE,
+                .type           = MT_MEMORY_NONCACHED,
         },
 };
 
diff --git a/arch/arm/mach-dove/include/mach/io.h b/arch/arm/mach-dove/include/mach/io.h
index 3b3e4721ce2e..eb4936ff90ad 100644
--- a/arch/arm/mach-dove/include/mach/io.h
+++ b/arch/arm/mach-dove/include/mach/io.h
@@ -13,8 +13,8 @@
 
 #define IO_SPACE_LIMIT          0xffffffff
 
-#define __io(a)  ((void __iomem *)(((a) - DOVE_PCIE0_IO_PHYS_BASE) +\
-                                   DOVE_PCIE0_IO_VIRT_BASE))
-#define __mem_pci(a)            (a)
+#define __io(a)         ((void __iomem *)(((a) - DOVE_PCIE0_IO_BUS_BASE) + \
+                                                 DOVE_PCIE0_IO_VIRT_BASE))
+#define __mem_pci(a)    (a)
 
 #endif
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 8bf3cec98cfa..4566bd1c8660 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -560,4 +560,4 @@ static int __init ep93xx_clock_init(void)
         clkdev_add_table(clocks, ARRAY_SIZE(clocks));
         return 0;
 }
-arch_initcall(ep93xx_clock_init);
+postcore_initcall(ep93xx_clock_init);
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 61cd4d64b985..24498a932ba6 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -503,6 +503,14 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
         return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
 }
 
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+        if (mask >= SZ_64M - 1)
+                return 0;
+
+        return -EIO;
+}
+
 EXPORT_SYMBOL(ixp4xx_pci_read);
 EXPORT_SYMBOL(ixp4xx_pci_write);
 
diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h
index f91ca6d4fbe8..8138371c406e 100644
--- a/arch/arm/mach-ixp4xx/include/mach/hardware.h
+++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
@@ -26,6 +26,8 @@
 #define PCIBIOS_MAX_MEM         0x4BFFFFFF
 #endif
 
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
+
 #define pcibios_assign_all_busses()     1
 
 /* Register locations and bits */
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index 93fc2ec95e76..6e924b398919 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -38,7 +38,7 @@
 
 #define KIRKWOOD_PCIE1_IO_PHYS_BASE     0xf3000000
 #define KIRKWOOD_PCIE1_IO_VIRT_BASE     0xfef00000
-#define KIRKWOOD_PCIE1_IO_BUS_BASE      0x00000000
+#define KIRKWOOD_PCIE1_IO_BUS_BASE      0x00100000
 #define KIRKWOOD_PCIE1_IO_SIZE          SZ_1M
 
 #define KIRKWOOD_PCIE_IO_PHYS_BASE      0xf2000000
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 55e7f00836b7..513ad3102d7c 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -117,7 +117,7 @@ static void __init pcie0_ioresources_init(struct pcie_port *pp)
          * IORESOURCE_IO
          */
         pp->res[0].name = "PCIe 0 I/O Space";
-        pp->res[0].start = KIRKWOOD_PCIE_IO_PHYS_BASE;
+        pp->res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE;
         pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
         pp->res[0].flags = IORESOURCE_IO;
 
@@ -139,7 +139,7 @@ static void __init pcie1_ioresources_init(struct pcie_port *pp)
          * IORESOURCE_IO
          */
         pp->res[0].name = "PCIe 1 I/O Space";
-        pp->res[0].start = KIRKWOOD_PCIE1_IO_PHYS_BASE;
+        pp->res[0].start = KIRKWOOD_PCIE1_IO_BUS_BASE;
         pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1;
         pp->res[0].flags = IORESOURCE_IO;
 
diff --git a/arch/arm/mach-mmp/include/mach/system.h b/arch/arm/mach-mmp/include/mach/system.h
index 4f5b0e0ce6cf..1a8a25edb1b4 100644
--- a/arch/arm/mach-mmp/include/mach/system.h
+++ b/arch/arm/mach-mmp/include/mach/system.h
@@ -9,6 +9,8 @@
 #ifndef __ASM_MACH_SYSTEM_H
 #define __ASM_MACH_SYSTEM_H
 
+#include <mach/cputype.h>
+
 static inline void arch_idle(void)
 {
         cpu_do_idle();
@@ -16,6 +18,9 @@ static inline void arch_idle(void)
 
 static inline void arch_reset(char mode, const char *cmd)
 {
-        cpu_reset(0);
+        if (cpu_is_pxa168())
+                cpu_reset(0xffff0000);
+        else
+                cpu_reset(0);
 }
 #endif /* __ASM_MACH_SYSTEM_H */
diff --git a/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c
index 91931dcb0689..4aaadc753d3e 100644
--- a/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c
+++ b/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c
@@ -215,7 +215,7 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
  * Add platform devices present on this baseboard and init
  * them from CPU side as far as required to use them later on
  */
-void __init eukrea_mbimxsd_baseboard_init(void)
+void __init eukrea_mbimxsd25_baseboard_init(void)
 {
         if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
                         ARRAY_SIZE(eukrea_mbimxsd_pads)))
diff --git a/arch/arm/mach-mx25/mach-cpuimx25.c b/arch/arm/mach-mx25/mach-cpuimx25.c
index a5f0174290b4..e064bb3d6919 100644
--- a/arch/arm/mach-mx25/mach-cpuimx25.c
+++ b/arch/arm/mach-mx25/mach-cpuimx25.c
@@ -147,8 +147,8 @@ static void __init eukrea_cpuimx25_init(void)
         if (!otg_mode_host)
                 mxc_register_device(&otg_udc_device, &otg_device_pdata);
 
-#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
-        eukrea_mbimxsd_baseboard_init();
+#ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
+        eukrea_mbimxsd25_baseboard_init();
 #endif
 }
 
diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index d3af0fdf8475..7a62e744a8b0 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -155,7 +155,7 @@ static unsigned long get_rate_arm(void)
 
         aad = &clk_consumer[(pdr0 >> 16) & 0xf];
         if (aad->sel)
-                fref = fref * 2 / 3;
+                fref = fref * 3 / 4;
 
         return fref / aad->arm;
 }
@@ -164,7 +164,7 @@ static unsigned long get_rate_ahb(struct clk *clk)
 {
         unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
         struct arm_ahb_div *aad;
-        unsigned long fref = get_rate_mpll();
+        unsigned long fref = get_rate_arm();
 
         aad = &clk_consumer[(pdr0 >> 16) & 0xf];
 
@@ -176,16 +176,11 @@ static unsigned long get_rate_ipg(struct clk *clk)
         return get_rate_ahb(NULL) >> 1;
 }
 
-static unsigned long get_3_3_div(unsigned long in)
-{
-        return (((in >> 3) & 0x7) + 1) * ((in & 0x7) + 1);
-}
-
 static unsigned long get_rate_uart(struct clk *clk)
 {
         unsigned long pdr3 = __raw_readl(CCM_BASE + CCM_PDR3);
         unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4);
-        unsigned long div = get_3_3_div(pdr4 >> 10);
+        unsigned long div = ((pdr4 >> 10) & 0x3f) + 1;
 
         if (pdr3 & (1 << 14))
                 return get_rate_arm() / div;
@@ -216,7 +211,7 @@ static unsigned long get_rate_sdhc(struct clk *clk)
                 break;
         }
 
-        return rate / get_3_3_div(div);
+        return rate / (div + 1);
 }
 
 static unsigned long get_rate_mshc(struct clk *clk)
@@ -270,7 +265,7 @@ static unsigned long get_rate_csi(struct clk *clk)
         else
                 rate = get_rate_ppll();
 
-        return rate / get_3_3_div((pdr2 >> 16) & 0x3f);
+        return rate / (((pdr2 >> 16) & 0x3f) + 1);
 }
 
 static unsigned long get_rate_otg(struct clk *clk)
@@ -283,25 +278,51 @@ static unsigned long get_rate_otg(struct clk *clk)
         else
                 rate = get_rate_ppll();
 
-        return rate / get_3_3_div((pdr4 >> 22) & 0x3f);
+        return rate / (((pdr4 >> 22) & 0x3f) + 1);
 }
 
 static unsigned long get_rate_ipg_per(struct clk *clk)
 {
         unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
         unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4);
-        unsigned long div1, div2;
+        unsigned long div;
 
         if (pdr0 & (1 << 26)) {
-                div1 = (pdr4 >> 19) & 0x7;
-                div2 = (pdr4 >> 16) & 0x7;
-                return get_rate_arm() / ((div1 + 1) * (div2 + 1));
+                div = (pdr4 >> 16) & 0x3f;
+                return get_rate_arm() / (div + 1);
         } else {
-                div1 = (pdr0 >> 12) & 0x7;
-                return get_rate_ahb(NULL) / div1;
+                div = (pdr0 >> 12) & 0x7;
+                return get_rate_ahb(NULL) / (div + 1);
         }
 }
 
+static unsigned long get_rate_hsp(struct clk *clk)
+{
+        unsigned long hsp_podf = (__raw_readl(CCM_BASE + CCM_PDR0) >> 20) & 0x03;
+        unsigned long fref = get_rate_mpll();
+
+        if (fref > 400 * 1000 * 1000) {
+                switch (hsp_podf) {
+                case 0:
+                        return fref >> 2;
+                case 1:
+                        return fref >> 3;
+                case 2:
+                        return fref / 3;
+                }
+        } else {
+                switch (hsp_podf) {
+                case 0:
+                case 2:
+                        return fref / 3;
+                case 1:
+                        return fref / 6;
+                }
+        }
+
+        return 0;
+}
+
 static int clk_cgr_enable(struct clk *clk)
 {
         u32 reg;
@@ -359,7 +380,7 @@ DEFINE_CLOCK(i2c1_clk,   0, CCM_CGR1, 10, get_rate_ipg_per, NULL);
 DEFINE_CLOCK(i2c2_clk,   1, CCM_CGR1, 12, get_rate_ipg_per, NULL);
 DEFINE_CLOCK(i2c3_clk,   2, CCM_CGR1, 14, get_rate_ipg_per, NULL);
 DEFINE_CLOCK(iomuxc_clk, 0, CCM_CGR1, 16, NULL, NULL);
-DEFINE_CLOCK(ipu_clk,    0, CCM_CGR1, 18, get_rate_ahb, NULL);
+DEFINE_CLOCK(ipu_clk,    0, CCM_CGR1, 18, get_rate_hsp, NULL);
 DEFINE_CLOCK(kpp_clk,    0, CCM_CGR1, 20, get_rate_ipg, NULL);
 DEFINE_CLOCK(mlb_clk,    0, CCM_CGR1, 22, get_rate_ahb, NULL);
 DEFINE_CLOCK(mshc_clk,   0, CCM_CGR1, 24, get_rate_mshc, NULL);
@@ -485,10 +506,10 @@ static struct clk_lookup lookups[] = {
 
 int __init mx35_clocks_init()
 {
-        unsigned int ll = 0;
+        unsigned int cgr2 = 3 << 26, cgr3 = 0;
 
 #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
-        ll = (3 << 16);
+        cgr2 |= 3 << 16;
 #endif
 
         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
@@ -499,8 +520,20 @@ int __init mx35_clocks_init()
         __raw_writel((3 << 18), CCM_BASE + CCM_CGR0);
         __raw_writel((3 << 2) | (3 << 4) | (3 << 6) | (3 << 8) | (3 << 16),
                         CCM_BASE + CCM_CGR1);
-        __raw_writel((3 << 26) | ll, CCM_BASE + CCM_CGR2);
-        __raw_writel(0, CCM_BASE + CCM_CGR3);
+
+        /*
+         * Check if we came up in internal boot mode. If yes, we need some
+         * extra clocks turned on, otherwise the MX35 boot ROM code will
+         * hang after a watchdog reset.
+         */
+        if (!(__raw_readl(CCM_BASE + CCM_RCSR) & (3 << 10))) {
+                /* Additionally turn on UART1, SCC, and IIM clocks */
+                cgr2 |= 3 << 16 | 3 << 4;
+                cgr3 |= 3 << 2;
+        }
+
+        __raw_writel(cgr2, CCM_BASE + CCM_CGR2);
+        __raw_writel(cgr3, CCM_BASE + CCM_CGR3);
 
         mxc_timer_init(&gpt_clk,
                         MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT);
diff --git a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
index 1dc5004df866..f8f15e3ac7a0 100644
--- a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
+++ b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
@@ -216,7 +216,7 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
  * Add platform devices present on this baseboard and init
  * them from CPU side as far as required to use them later on
  */
-void __init eukrea_mbimxsd_baseboard_init(void)
+void __init eukrea_mbimxsd35_baseboard_init(void)
 {
         if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
                         ARRAY_SIZE(eukrea_mbimxsd_pads)))
diff --git a/arch/arm/mach-mx3/mach-cpuimx35.c b/arch/arm/mach-mx3/mach-cpuimx35.c
index 9770a6a973be..2a4f8b781ba4 100644
--- a/arch/arm/mach-mx3/mach-cpuimx35.c
+++ b/arch/arm/mach-mx3/mach-cpuimx35.c
@@ -201,8 +201,8 @@ static void __init mxc_board_init(void)
         if (!otg_mode_host)
                 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
 
-#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
-        eukrea_mbimxsd_baseboard_init();
+#ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
+        eukrea_mbimxsd35_baseboard_init();
 #endif
 }
 
diff --git a/arch/arm/mach-mx5/clock-mx51.c b/arch/arm/mach-mx5/clock-mx51.c
index 6af69def357f..57c10a9926cc 100644
--- a/arch/arm/mach-mx5/clock-mx51.c
+++ b/arch/arm/mach-mx5/clock-mx51.c
@@ -56,7 +56,7 @@ static void _clk_ccgr_disable(struct clk *clk)
 {
         u32 reg;
         reg = __raw_readl(clk->enable_reg);
-        reg &= ~(MXC_CCM_CCGRx_MOD_OFF << clk->enable_shift);
+        reg &= ~(MXC_CCM_CCGRx_CG_MASK << clk->enable_shift);
         __raw_writel(reg, clk->enable_reg);
 
 }
diff --git a/arch/arm/mach-pxa/cpufreq-pxa2xx.c b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
index 268a9bc6be8a..58093d9e07be 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c
+++ b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
@@ -312,8 +312,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
         freqs.cpu = policy->cpu;
 
         if (freq_debug)
-                pr_debug(KERN_INFO "Changing CPU frequency to %d Mhz, "
-                         "(SDRAM %d Mhz)\n",
+                pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
                          freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
                          (new_freq_mem / 2000) : (new_freq_mem / 1000));
 
@@ -398,7 +397,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
         return 0;
 }
 
-static __init int pxa_cpufreq_init(struct cpufreq_policy *policy)
+static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 {
         int i;
         unsigned int freq;
diff --git a/arch/arm/mach-pxa/cpufreq-pxa3xx.c b/arch/arm/mach-pxa/cpufreq-pxa3xx.c
index 27fa329d9a8b..0a0d0fe99220 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa3xx.c
+++ b/arch/arm/mach-pxa/cpufreq-pxa3xx.c
@@ -204,7 +204,7 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
         return 0;
 }
 
-static __init int pxa3xx_cpufreq_init(struct cpufreq_policy *policy)
+static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy)
 {
         int ret = -EINVAL;
 
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index 7f64d24cd564..814f1458a06a 100644
--- a/arch/arm/mach-pxa/include/mach/hardware.h
+++ b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -264,23 +264,35 @@
  * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
  * == 0x3 for pxa300/pxa310/pxa320
  */
+#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
 #define __cpu_is_pxa2xx(id)                             \
         ({                                              \
                 unsigned int _id = (id) >> 13 & 0x7;    \
                 _id <= 0x2;                             \
          })
+#else
+#define __cpu_is_pxa2xx(id)     (0)
+#endif
 
+#ifdef CONFIG_PXA3xx
 #define __cpu_is_pxa3xx(id)                             \
         ({                                              \
                 unsigned int _id = (id) >> 13 & 0x7;    \
                 _id == 0x3;                             \
          })
+#else
+#define __cpu_is_pxa3xx(id)     (0)
+#endif
 
+#if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
 #define __cpu_is_pxa93x(id)                             \
         ({                                              \
                 unsigned int _id = (id) >> 4 & 0xfff;   \
                 _id == 0x683 || _id == 0x693;           \
          })
+#else
+#define __cpu_is_pxa93x(id)     (0)
+#endif
 
 #define cpu_is_pxa2xx()                                 \
         ({                                              \
@@ -309,7 +321,7 @@ extern unsigned long get_clock_tick_rate(void);
 #define PCIBIOS_MIN_IO          0
 #define PCIBIOS_MIN_MEM         0
 #define pcibios_assign_all_busses()     1
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
 #endif
 
-
 #endif  /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h
index 262691fb97d8..fdca3be47d9b 100644
--- a/arch/arm/mach-pxa/include/mach/io.h
+++ b/arch/arm/mach-pxa/include/mach/io.h
@@ -6,6 +6,8 @@
 #ifndef __ASM_ARM_ARCH_IO_H
 #define __ASM_ARM_ARCH_IO_H
 
+#include <mach/hardware.h>
+
 #define IO_SPACE_LIMIT 0xffffffff
 
 /*
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa300.h b/arch/arm/mach-pxa/include/mach/mfp-pxa300.h
index 7139e0dc26d1..4e1287070d21 100644
--- a/arch/arm/mach-pxa/include/mach/mfp-pxa300.h
+++ b/arch/arm/mach-pxa/include/mach/mfp-pxa300.h
@@ -71,10 +71,10 @@
 #define GPIO46_CI_DD_7          MFP_CFG_DRV(GPIO46, AF0, DS04X)
 #define GPIO47_CI_DD_8          MFP_CFG_DRV(GPIO47, AF1, DS04X)
 #define GPIO48_CI_DD_9          MFP_CFG_DRV(GPIO48, AF1, DS04X)
-#define GPIO52_CI_HSYNC         MFP_CFG_DRV(GPIO52, AF0, DS04X)
-#define GPIO51_CI_VSYNC         MFP_CFG_DRV(GPIO51, AF0, DS04X)
 #define GPIO49_CI_MCLK          MFP_CFG_DRV(GPIO49, AF0, DS04X)
 #define GPIO50_CI_PCLK          MFP_CFG_DRV(GPIO50, AF0, DS04X)
+#define GPIO51_CI_HSYNC         MFP_CFG_DRV(GPIO51, AF0, DS04X)
+#define GPIO52_CI_VSYNC         MFP_CFG_DRV(GPIO52, AF0, DS04X)
 
 /* KEYPAD */
 #define GPIO3_KP_DKIN_6         MFP_CFG_LPM(GPIO3,   AF2, FLOAT)
diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c
index 77ad6d34ab5b..405b92a29793 100644
--- a/arch/arm/mach-pxa/palm27x.c
+++ b/arch/arm/mach-pxa/palm27x.c
@@ -469,9 +469,13 @@ static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = {
         },
 };
 
+static struct i2c_pxa_platform_data palm27x_i2c_power_info = {
+        .use_pio        = 1,
+};
+
 void __init palm27x_pmic_init(void)
 {
         i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info));
-        pxa27x_set_i2c_power_info(NULL);
+        pxa27x_set_i2c_power_info(&palm27x_i2c_power_info);
 }
 #endif
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index c9b747cedea8..37d6173bbb66 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -240,6 +240,7 @@ static void __init vpac270_onenand_init(void) {}
 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
 static struct pxamci_platform_data vpac270_mci_platform_data = {
         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
+        .gpio_power             = -1,
         .gpio_card_detect       = GPIO53_VPAC270_SD_DETECT_N,
         .gpio_card_ro           = GPIO52_VPAC270_SD_READONLY,
         .detect_delay_ms        = 200,
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 2fa38df28414..07c08151dfe6 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -259,6 +259,7 @@ struct mmci_platform_data realview_mmc0_plat_data = {
         .status         = realview_mmc_status,
         .gpio_wp        = 17,
         .gpio_cd        = 16,
+        .cd_invert      = true,
 };
 
 struct mmci_platform_data realview_mmc1_plat_data = {
@@ -266,6 +267,7 @@ struct mmci_platform_data realview_mmc1_plat_data = {
         .status         = realview_mmc_status,
         .gpio_wp        = 19,
         .gpio_cd        = 18,
+        .cd_invert      = true,
 };
 
 /*
diff --git a/arch/arm/mach-realview/include/mach/smp.h b/arch/arm/mach-realview/include/mach/smp.h
index dd53892d44a7..d3cd265cb058 100644
--- a/arch/arm/mach-realview/include/mach/smp.h
+++ b/arch/arm/mach-realview/include/mach/smp.h
@@ -1,16 +1,8 @@
 #ifndef ASMARM_ARCH_SMP_H
 #define ASMARM_ARCH_SMP_H
 
-
 #include <asm/hardware/gic.h>
-
-#define hard_smp_processor_id()                 \
-        ({                                              \
-                unsigned int cpunum;                    \
-                __asm__("mrc p15, 0, %0, c0, c0, 5"     \
-                        : "=r" (cpunum));               \
-                cpunum &= 0x0F;                         \
-        })
+#include <asm/smp_mpidr.h>
 
 /*
  * We use IRQ1 as the IPI
diff --git a/arch/arm/mach-s3c64xx/dev-spi.c b/arch/arm/mach-s3c64xx/dev-spi.c
index a492b982aa06..405e62128917 100644
--- a/arch/arm/mach-s3c64xx/dev-spi.c
+++ b/arch/arm/mach-s3c64xx/dev-spi.c
@@ -18,10 +18,11 @@
 #include <mach/map.h>
 #include <mach/gpio-bank-c.h>
 #include <mach/spi-clocks.h>
+#include <mach/irqs.h>
 
 #include <plat/s3c64xx-spi.h>
 #include <plat/gpio-cfg.h>
-#include <plat/irqs.h>
+#include <plat/devs.h>
 
 static char *spi_src_clks[] = {
         [S3C64XX_SPI_SRCCLK_PCLK] = "pclk",
diff --git a/arch/arm/mach-s3c64xx/mach-real6410.c b/arch/arm/mach-s3c64xx/mach-real6410.c
index 5c07d013b23d..e130379ba0e8 100644
--- a/arch/arm/mach-s3c64xx/mach-real6410.c
+++ b/arch/arm/mach-s3c64xx/mach-real6410.c
@@ -30,73 +30,73 @@
 #include <plat/devs.h>
 #include <plat/regs-serial.h>
 
-#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
-#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
-#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+#define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
+#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
+#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
 
 static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
         [0] = {
-                .hwport      = 0,
-                .flags       = 0,
-                .ucon        = UCON,
-                .ulcon       = ULCON,
-                .ufcon       = UFCON,
+                .hwport = 0,
+                .flags  = 0,
+                .ucon   = UCON,
+                .ulcon  = ULCON,
+                .ufcon  = UFCON,
         },
         [1] = {
-                .hwport      = 1,
-                .flags       = 0,
-                .ucon        = UCON,
-                .ulcon       = ULCON,
-                .ufcon       = UFCON,
+                .hwport = 1,
+                .flags  = 0,
+                .ucon   = UCON,
+                .ulcon  = ULCON,
+                .ufcon  = UFCON,
         },
         [2] = {
-                .hwport      = 2,
-                .flags       = 0,
-                .ucon        = UCON,
-                .ulcon       = ULCON,
-                .ufcon       = UFCON,
+                .hwport = 2,
+                .flags  = 0,
+                .ucon   = UCON,
+                .ulcon  = ULCON,
+                .ufcon  = UFCON,
         },
         [3] = {
-                .hwport      = 3,
-                .flags       = 0,
-                .ucon        = UCON,
-                .ulcon       = ULCON,
-                .ufcon       = UFCON,
+                .hwport = 3,
+                .flags  = 0,
+                .ucon   = UCON,
+                .ulcon  = ULCON,
+                .ufcon  = UFCON,
         },
 };
 
 /* DM9000AEP 10/100 ethernet controller */
 
 static struct resource real6410_dm9k_resource[] = {
-        [0] = {
-                .start = S3C64XX_PA_XM0CSN1,
-                .end   = S3C64XX_PA_XM0CSN1 + 1,
-                .flags = IORESOURCE_MEM
-        },
-        [1] = {
-                .start = S3C64XX_PA_XM0CSN1 + 4,
-                .end   = S3C64XX_PA_XM0CSN1 + 5,
-                .flags = IORESOURCE_MEM
-        },
-        [2] = {
-                .start = S3C_EINT(7),
-                .end   = S3C_EINT(7),
-                .flags = IORESOURCE_IRQ,
-        }
+        [0] = {
+                .start  = S3C64XX_PA_XM0CSN1,
+                .end    = S3C64XX_PA_XM0CSN1 + 1,
+                .flags  = IORESOURCE_MEM
+        },
+        [1] = {
+                .start  = S3C64XX_PA_XM0CSN1 + 4,
+                .end    = S3C64XX_PA_XM0CSN1 + 5,
+                .flags  = IORESOURCE_MEM
+        },
+        [2] = {
+                .start  = S3C_EINT(7),
+                .end    = S3C_EINT(7),
+                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
+        }
 };
 
 static struct dm9000_plat_data real6410_dm9k_pdata = {
-        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
+        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 };
 
 static struct platform_device real6410_device_eth = {
-        .name           = "dm9000",
-        .id             = -1,
-        .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
-        .resource       = real6410_dm9k_resource,
-        .dev            = {
-                .platform_data  = &real6410_dm9k_pdata,
-        },
+        .name           = "dm9000",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
+        .resource       = real6410_dm9k_resource,
+        .dev            = {
+                .platform_data  = &real6410_dm9k_pdata,
+        },
 };
 
 static struct platform_device *real6410_devices[] __initdata = {
@@ -129,12 +129,12 @@ static void __init real6410_machine_init(void)
         /* set timing for nCS1 suitable for ethernet chip */
 
         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
-                        (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
-                        (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
-                        (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
-                        (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
-                        (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
-                        (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
+                (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
+                (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
+                (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
+                (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
+                (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
+                (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 
         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 }
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 3a9639bc3d9b..cb1ebeb08763 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -136,7 +136,7 @@ static struct platform_device smartq_usb_otg_vbus_dev = {
         .dev.platform_data      = &smartq_usb_otg_vbus_pdata,
 };
 
-static int __init smartq_bl_init(struct device *dev)
+static int smartq_bl_init(struct device *dev)
 {
     s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
 
diff --git a/arch/arm/mach-s3c64xx/mach-smartq5.c b/arch/arm/mach-s3c64xx/mach-smartq5.c
index a4d59b076e3d..235e43928cb8 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq5.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq5.c
@@ -32,7 +32,7 @@
 
 #include "mach-smartq.h"
 
-static struct gpio_led smartq5_leds[] __initdata = {
+static struct gpio_led smartq5_leds[] = {
         {
                 .name                   = "smartq5:green",
                 .active_low             = 1,
diff --git a/arch/arm/mach-s3c64xx/mach-smartq7.c b/arch/arm/mach-s3c64xx/mach-smartq7.c
index e50a7d781732..78a58c351f0a 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq7.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq7.c
@@ -32,7 +32,7 @@
 
 #include "mach-smartq.h"
 
-static struct gpio_led smartq7_leds[] __initdata = {
+static struct gpio_led smartq7_leds[] = {
         {
                 .name                   = "smartq7:red",
                 .active_low             = 1,
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
index af91fefef2c6..cfecd70657cb 100644
--- a/arch/arm/mach-s5pv210/clock.c
+++ b/arch/arm/mach-s5pv210/clock.c
@@ -281,6 +281,24 @@ static struct clk init_clocks_disable[] = {
                 .enable         = s5pv210_clk_ip0_ctrl,
                 .ctrlbit        = (1<<29),
         }, {
+                .name           = "fimc",
+                .id             = 0,
+                .parent         = &clk_hclk_dsys.clk,
+                .enable         = s5pv210_clk_ip0_ctrl,
+                .ctrlbit        = (1 << 24),
+        }, {
+                .name           = "fimc",
+                .id             = 1,
+                .parent         = &clk_hclk_dsys.clk,
+                .enable         = s5pv210_clk_ip0_ctrl,
+                .ctrlbit        = (1 << 25),
+        }, {
+                .name           = "fimc",
+                .id             = 2,
+                .parent         = &clk_hclk_dsys.clk,
+                .enable         = s5pv210_clk_ip0_ctrl,
+                .ctrlbit        = (1 << 26),
+        }, {
                 .name           = "otg",
                 .id             = -1,
                 .parent         = &clk_hclk_psys.clk,
@@ -357,7 +375,7 @@ static struct clk init_clocks_disable[] = {
                 .id             = 1,
                 .parent         = &clk_pclk_psys.clk,
                 .enable         = s5pv210_clk_ip3_ctrl,
-                .ctrlbit        = (1<<8),
+                .ctrlbit        = (1 << 10),
         }, {
                 .name           = "i2c",
                 .id             = 2,
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
index b9f4d677cf55..77f456c91ad3 100644
--- a/arch/arm/mach-s5pv210/cpu.c
+++ b/arch/arm/mach-s5pv210/cpu.c
@@ -47,7 +47,7 @@ static struct map_desc s5pv210_iodesc[] __initdata = {
         {
                 .virtual        = (unsigned long)S5P_VA_SYSTIMER,
                 .pfn            = __phys_to_pfn(S5PV210_PA_SYSTIMER),
-                .length         = SZ_1M,
+                .length         = SZ_4K,
                 .type           = MT_DEVICE,
         }, {
                 .virtual        = (unsigned long)VA_VIC2,
diff --git a/arch/arm/mach-s5pv310/include/mach/smp.h b/arch/arm/mach-s5pv310/include/mach/smp.h
index 990f3ba88a1f..b7ec252384f4 100644
--- a/arch/arm/mach-s5pv310/include/mach/smp.h
+++ b/arch/arm/mach-s5pv310/include/mach/smp.h
@@ -7,17 +7,10 @@
 #define ASM_ARCH_SMP_H __FILE__
 
 #include <asm/hardware/gic.h>
+#include <asm/smp_mpidr.h>
 
 extern void __iomem *gic_cpu_base_addr;
 
-#define hard_smp_processor_id()                 \
-        ({                                              \
-                unsigned int cpunum;                    \
-                __asm__("mrc p15, 0, %0, c0, c0, 5"     \
-                        : "=r" (cpunum));               \
-                cpunum &= 0x03;                         \
-        })
-
 /*
  * We use IRQ1 as the IPI
  */
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 5e16b4c69222..ae416fe7daf2 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -3,7 +3,7 @@
 #
 
 # Common objects
-obj-y                           := timer.o console.o clock.o
+obj-y                           := timer.o console.o clock.o pm_runtime.o
 
 # CPU objects
 obj-$(CONFIG_ARCH_SH7367)       += setup-sh7367.o clock-sh7367.o intc-sh7367.o
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 23d472f9525e..95935c83c306 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -25,6 +25,7 @@
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/mfd/sh_mobile_sdhi.h>
+#include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
@@ -39,6 +40,7 @@
 #include <linux/sh_clk.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
+#include <linux/leds.h>
 #include <linux/input/sh_keysc.h>
 #include <linux/usb/r8a66597.h>
 
@@ -307,6 +309,7 @@ static struct sh_mobile_sdhi_info sdhi1_info = {
         .dma_slave_tx   = SHDMA_SLAVE_SDHI1_TX,
         .dma_slave_rx   = SHDMA_SLAVE_SDHI1_RX,
         .tmio_ocr_mask  = MMC_VDD_165_195,
+        .tmio_flags     = TMIO_MMC_WRPROTECT_DISABLE,
 };
 
 static struct resource sdhi1_resources[] = {
@@ -558,7 +561,7 @@ static struct resource fsi_resources[] = {
 
 static struct platform_device fsi_device = {
         .name           = "sh_fsi2",
-        .id             = 0,
+        .id             = -1,
         .num_resources  = ARRAY_SIZE(fsi_resources),
         .resource       = fsi_resources,
         .dev    = {
@@ -650,7 +653,44 @@ static struct platform_device hdmi_device = {
         },
 };
 
+static struct gpio_led ap4evb_leds[] = {
+        {
+                .name                   = "led4",
+                .gpio                   = GPIO_PORT185,
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        },
+        {
+                .name                   = "led2",
+                .gpio                   = GPIO_PORT186,
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        },
+        {
+                .name                   = "led3",
+                .gpio                   = GPIO_PORT187,
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        },
+        {
+                .name                   = "led1",
+                .gpio                   = GPIO_PORT188,
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        }
+};
+
+static struct gpio_led_platform_data ap4evb_leds_pdata = {
+        .num_leds = ARRAY_SIZE(ap4evb_leds),
+        .leds = ap4evb_leds,
+};
+
+static struct platform_device leds_device = {
+        .name = "leds-gpio",
+        .id = 0,
+        .dev = {
+                .platform_data  = &ap4evb_leds_pdata,
+        },
+};
+
 static struct platform_device *ap4evb_devices[] __initdata = {
+        &leds_device,
         &nor_flash_device,
         &smc911x_device,
         &sdhi0_device,
@@ -840,20 +880,6 @@ static void __init ap4evb_init(void)
         gpio_request(GPIO_FN_CS5A,      NULL);
         gpio_request(GPIO_FN_IRQ6_39,   NULL);
 
-        /* enable LED 1 - 4 */
-        gpio_request(GPIO_PORT185, NULL);
-        gpio_request(GPIO_PORT186, NULL);
-        gpio_request(GPIO_PORT187, NULL);
-        gpio_request(GPIO_PORT188, NULL);
-        gpio_direction_output(GPIO_PORT185, 1);
-        gpio_direction_output(GPIO_PORT186, 1);
-        gpio_direction_output(GPIO_PORT187, 1);
-        gpio_direction_output(GPIO_PORT188, 1);
-        gpio_export(GPIO_PORT185, 0);
-        gpio_export(GPIO_PORT186, 0);
-        gpio_export(GPIO_PORT187, 0);
-        gpio_export(GPIO_PORT188, 0);
-
         /* enable Debug switch (S6) */
         gpio_request(GPIO_PORT32, NULL);
         gpio_request(GPIO_PORT33, NULL);
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index fb4e9b1d788e..759468992ad2 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -286,7 +286,6 @@ static struct clk_ops pllc2_clk_ops = {
 
 struct clk pllc2_clk = {
         .ops            = &pllc2_clk_ops,
-        .flags          = CLK_ENABLE_ON_INIT,
         .parent         = &extal1_div2_clk,
         .freq_table     = pllc2_freq_table,
         .parent_table   = pllc2_parent,
@@ -395,7 +394,7 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
 
 enum { MSTP001,
        MSTP131, MSTP130,
-       MSTP129, MSTP128,
+       MSTP129, MSTP128, MSTP127, MSTP126,
        MSTP118, MSTP117, MSTP116,
        MSTP106, MSTP101, MSTP100,
        MSTP223,
@@ -413,6 +412,8 @@ static struct clk mstp_clks[MSTP_NR] = {
         [MSTP130] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 30, 0), /* VEU2 */
         [MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* VEU1 */
         [MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* VEU0 */
+        [MSTP127] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 27, 0), /* CEU */
+        [MSTP126] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 26, 0), /* CSI2 */
         [MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX */
         [MSTP117] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 17, 0), /* LCDC1 */
         [MSTP116] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */
@@ -428,7 +429,7 @@ static struct clk mstp_clks[MSTP_NR] = {
         [MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
         [MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
         [MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
-        [MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, CLK_ENABLE_ON_INIT), /* FSIA */
+        [MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, 0), /* FSIA */
         [MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */
         [MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */
         [MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */
@@ -498,6 +499,8 @@ static struct clk_lookup lookups[] = {
         CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[MSTP130]), /* VEU2 */
         CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[MSTP129]), /* VEU1 */
         CLKDEV_DEV_ID("uio_pdrv_genirq.1", &mstp_clks[MSTP128]), /* VEU0 */
+        CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[MSTP127]), /* CEU */
+        CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2 */
         CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */
         CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1", &mstp_clks[MSTP117]), /* LCDC1 */
         CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* IIC0 */
diff --git a/arch/arm/mach-shmobile/clock.c b/arch/arm/mach-shmobile/clock.c
index b7c705a213a2..6b7c7c42bc8f 100644
--- a/arch/arm/mach-shmobile/clock.c
+++ b/arch/arm/mach-shmobile/clock.c
@@ -1,8 +1,10 @@
 /*
- * SH-Mobile Timer
+ * SH-Mobile Clock Framework
  *
  * Copyright (C) 2010  Magnus Damm
  *
+ * Used together with arch/arm/common/clkdev.c and drivers/sh/clk.c.
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2 of the License.
diff --git a/arch/arm/mach-shmobile/pm_runtime.c b/arch/arm/mach-shmobile/pm_runtime.c
new file mode 100644
index 000000000000..94912d3944d3
--- /dev/null
+++ b/arch/arm/mach-shmobile/pm_runtime.c
@@ -0,0 +1,169 @@
+/*
+ * arch/arm/mach-shmobile/pm_runtime.c
+ *
+ * Runtime PM support code for SuperH Mobile ARM
+ *
+ *  Copyright (C) 2009-2010 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/sh_clk.h>
+#include <linux/bitmap.h>
+
+#ifdef CONFIG_PM_RUNTIME
+#define BIT_ONCE 0
+#define BIT_ACTIVE 1
+#define BIT_CLK_ENABLED 2
+
+struct pm_runtime_data {
+        unsigned long flags;
+        struct clk *clk;
+};
+
+static void __devres_release(struct device *dev, void *res)
+{
+        struct pm_runtime_data *prd = res;
+
+        dev_dbg(dev, "__devres_release()\n");
+
+        if (test_bit(BIT_CLK_ENABLED, &prd->flags))
+                clk_disable(prd->clk);
+
+        if (test_bit(BIT_ACTIVE, &prd->flags))
+                clk_put(prd->clk);
+}
+
+static struct pm_runtime_data *__to_prd(struct device *dev)
+{
+        return devres_find(dev, __devres_release, NULL, NULL);
+}
+
+static void platform_pm_runtime_init(struct device *dev,
+                                     struct pm_runtime_data *prd)
+{
+        if (prd && !test_and_set_bit(BIT_ONCE, &prd->flags)) {
+                prd->clk = clk_get(dev, NULL);
+                if (!IS_ERR(prd->clk)) {
+                        set_bit(BIT_ACTIVE, &prd->flags);
+                        dev_info(dev, "clocks managed by runtime pm\n");
+                }
+        }
+}
+
+static void platform_pm_runtime_bug(struct device *dev,
+                                    struct pm_runtime_data *prd)
+{
+        if (prd && !test_and_set_bit(BIT_ONCE, &prd->flags))
+                dev_err(dev, "runtime pm suspend before resume\n");
+}
+
+int platform_pm_runtime_suspend(struct device *dev)
+{
+        struct pm_runtime_data *prd = __to_prd(dev);
+
+        dev_dbg(dev, "platform_pm_runtime_suspend()\n");
+
+        platform_pm_runtime_bug(dev, prd);
+
+        if (prd && test_bit(BIT_ACTIVE, &prd->flags)) {
+                clk_disable(prd->clk);
+                clear_bit(BIT_CLK_ENABLED, &prd->flags);
+        }
+
+        return 0;
+}
+
+int platform_pm_runtime_resume(struct device *dev)
+{
+        struct pm_runtime_data *prd = __to_prd(dev);
+
+        dev_dbg(dev, "platform_pm_runtime_resume()\n");
+
+        platform_pm_runtime_init(dev, prd);
+
+        if (prd && test_bit(BIT_ACTIVE, &prd->flags)) {
+                clk_enable(prd->clk);
+                set_bit(BIT_CLK_ENABLED, &prd->flags);
+        }
+
+        return 0;
+}
+
+int platform_pm_runtime_idle(struct device *dev)
+{
+        /* suspend synchronously to disable clocks immediately */
+        return pm_runtime_suspend(dev);
+}
+
+static int platform_bus_notify(struct notifier_block *nb,
+                               unsigned long action, void *data)
+{
+        struct device *dev = data;
+        struct pm_runtime_data *prd;
+
+        dev_dbg(dev, "platform_bus_notify() %ld !\n", action);
+
+        if (action == BUS_NOTIFY_BIND_DRIVER) {
+                prd = devres_alloc(__devres_release, sizeof(*prd), GFP_KERNEL);
+                if (prd)
+                        devres_add(dev, prd);
+                else
+                        dev_err(dev, "unable to alloc memory for runtime pm\n");
+        }
+
+        return 0;
+}
+
+#else /* CONFIG_PM_RUNTIME */
+
+static int platform_bus_notify(struct notifier_block *nb,
+                               unsigned long action, void *data)
+{
+        struct device *dev = data;
+        struct clk *clk;
+
+        dev_dbg(dev, "platform_bus_notify() %ld !\n", action);
+
+        switch (action) {
+        case BUS_NOTIFY_BIND_DRIVER:
+                clk = clk_get(dev, NULL);
+                if (!IS_ERR(clk)) {
+                        clk_enable(clk);
+                        clk_put(clk);
+                        dev_info(dev, "runtime pm disabled, clock forced on\n");
+                }
+                break;
+        case BUS_NOTIFY_UNBOUND_DRIVER:
+                clk = clk_get(dev, NULL);
+                if (!IS_ERR(clk)) {
+                        clk_disable(clk);
+                        clk_put(clk);
+                        dev_info(dev, "runtime pm disabled, clock forced off\n");
+                }
+                break;
+        }
+
+        return 0;
+}
+
+#endif /* CONFIG_PM_RUNTIME */
+
+static struct notifier_block platform_bus_notifier = {
+        .notifier_call = platform_bus_notify
+};
+
+static int __init sh_pm_runtime_init(void)
+{
+        bus_register_notifier(&platform_bus_type, &platform_bus_notifier);
+        return 0;
+}
+core_initcall(sh_pm_runtime_init);
diff --git a/arch/arm/mach-tegra/include/mach/smp.h b/arch/arm/mach-tegra/include/mach/smp.h
index 8b42dab79a70..e4a34a35a544 100644
--- a/arch/arm/mach-tegra/include/mach/smp.h
+++ b/arch/arm/mach-tegra/include/mach/smp.h
@@ -1,16 +1,8 @@
 #ifndef ASMARM_ARCH_SMP_H
 #define ASMARM_ARCH_SMP_H
 
-
 #include <asm/hardware/gic.h>
-
-#define hard_smp_processor_id()                 \
-        ({                                              \
-                unsigned int cpunum;                    \
-                __asm__("mrc p15, 0, %0, c0, c0, 5"     \
-                        : "=r" (cpunum));               \
-                cpunum &= 0x0F;                         \
-        })
+#include <asm/smp_mpidr.h>
 
 /*
  * We use IRQ1 as the IPI
diff --git a/arch/arm/mach-u300/include/mach/gpio.h b/arch/arm/mach-u300/include/mach/gpio.h
index 7b1fc984abb6..d5a71abcbaea 100644
--- a/arch/arm/mach-u300/include/mach/gpio.h
+++ b/arch/arm/mach-u300/include/mach/gpio.h
@@ -273,6 +273,9 @@ extern void gpio_pullup(unsigned gpio, int value);
 extern int gpio_get_value(unsigned gpio);
 extern void gpio_set_value(unsigned gpio, int value);
 
+#define gpio_get_value_cansleep gpio_get_value
+#define gpio_set_value_cansleep gpio_set_value
+
 /* wrappers to sleep-enable the previous two functions */
 static inline unsigned gpio_to_irq(unsigned gpio)
 {
diff --git a/arch/arm/mach-ux500/include/mach/smp.h b/arch/arm/mach-ux500/include/mach/smp.h
index b59f7bc9725d..197e8417375e 100644
--- a/arch/arm/mach-ux500/include/mach/smp.h
+++ b/arch/arm/mach-ux500/include/mach/smp.h
@@ -10,18 +10,11 @@
 #define ASMARM_ARCH_SMP_H
 
 #include <asm/hardware/gic.h>
+#include <asm/smp_mpidr.h>
 
 /* This is required to wakeup the secondary core */
 extern void u8500_secondary_startup(void);
 
-#define hard_smp_processor_id()                         \
-        ({                                              \
-                unsigned int cpunum;                    \
-                __asm__("mrc p15, 0, %0, c0, c0, 5"     \
-                        : "=r" (cpunum));               \
-                cpunum &= 0x0F;                         \
-        })
-
 /*
  * We use IRQ1 as the IPI
  */
diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 577df6cccb08..efb127022d42 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -227,7 +227,13 @@ static void ct_ca9x4_init(void)
         int i;
 
 #ifdef CONFIG_CACHE_L2X0
-        l2x0_init(MMIO_P2V(CT_CA9X4_L2CC), 0x00000000, 0xfe0fffff);
+        void __iomem *l2x0_base = MMIO_P2V(CT_CA9X4_L2CC);
+
+        /* set RAM latencies to 1 cycle for this core tile. */
+        writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
+        writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
+
+        l2x0_init(l2x0_base, 0x00400000, 0xfe0fffff);
 #endif
 
         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
diff --git a/arch/arm/mach-vexpress/include/mach/smp.h b/arch/arm/mach-vexpress/include/mach/smp.h
index 72a9621ed087..5a6da4fd247e 100644
--- a/arch/arm/mach-vexpress/include/mach/smp.h
+++ b/arch/arm/mach-vexpress/include/mach/smp.h
@@ -2,14 +2,7 @@
 #define __MACH_SMP_H
 
 #include <asm/hardware/gic.h>
-
-#define hard_smp_processor_id()                         \
-        ({                                              \
-                unsigned int cpunum;                    \
-                __asm__("mrc p15, 0, %0, c0, c0, 5"     \
-                        : "=r" (cpunum));               \
-                cpunum &= 0x0F;                         \
-        })
+#include <asm/smp_mpidr.h>
 
 /*
  * We use IRQ1 as the IPI
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 33c3f570aaa0..a0a2928ae4dd 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -398,7 +398,7 @@ config CPU_V6
 # ARMv6k
 config CPU_32v6K
         bool "Support ARM V6K processor extensions" if !SMP
-        depends on CPU_V6
+        depends on CPU_V6 || CPU_V7
         default y if SMP && !(ARCH_MX3 || ARCH_OMAP2)
         help
           Say Y here if your ARMv6 processor supports the 'K' extension.
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index d073b64ae87e..724ba3bce72c 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -885,8 +885,23 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 
         if (ai_usermode & UM_SIGNAL)
                 force_sig(SIGBUS, current);
-        else
-                set_cr(cr_no_alignment);
+        else {
+                /*
+                 * We're about to disable the alignment trap and return to
+                 * user space.  But if an interrupt occurs before actually
+                 * reaching user space, then the IRQ vector entry code will
+                 * notice that we were still in kernel space and therefore
+                 * the alignment trap won't be re-enabled in that case as it
+                 * is presumed to be always on from kernel space.
+                 * Let's prevent that race by disabling interrupts here (they
+                 * are disabled on the way back to user space anyway in
+                 * entry-common.S) and disable the alignment trap only if
+                 * there is no work pending for this thread.
+                 */
+                raw_local_irq_disable();
+                if (!(current_thread_info()->flags & _TIF_WORK_MASK))
+                        set_cr(cr_no_alignment);
+        }
 
         return 0;
 }
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 86aa689ef1aa..99fa688dfadd 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -21,18 +21,22 @@
 #define D_CACHE_LINE_SIZE       32
 #define BTB_FLUSH_SIZE          8
 
-#ifdef CONFIG_ARM_ERRATA_411920
 /*
- * Invalidate the entire I cache (this code is a workaround for the ARM1136
- * erratum 411920 - Invalidate Instruction Cache operation can fail. This
- * erratum is present in 1136, 1156 and 1176. It does not affect the MPCore.
+ *      v6_flush_icache_all()
+ *
+ *      Flush the whole I-cache.
  *
- * Registers:
- *   r0 - set to 0
- *   r1 - corrupted
+ *      ARM1136 erratum 411920 - Invalidate Instruction Cache operation can fail.
+ *      This erratum is present in 1136, 1156 and 1176. It does not affect the
+ *      MPCore.
+ *
+ *      Registers:
+ *      r0 - set to 0
+ *      r1 - corrupted
  */
-ENTRY(v6_icache_inval_all)
+ENTRY(v6_flush_icache_all)
         mov     r0, #0
+#ifdef CONFIG_ARM_ERRATA_411920
         mrs     r1, cpsr
         cpsid   ifa                             @ disable interrupts
         mcr     p15, 0, r0, c7, c5, 0           @ invalidate entire I-cache
@@ -43,8 +47,11 @@ ENTRY(v6_icache_inval_all)
         .rept   11                              @ ARM Ltd recommends at least
         nop                                     @ 11 NOPs
         .endr
-        mov     pc, lr
+#else
+        mcr     p15, 0, r0, c7, c5, 0           @ invalidate I-cache
 #endif
+        mov     pc, lr
+ENDPROC(v6_flush_icache_all)
 
 /*
  *      v6_flush_cache_all()
@@ -60,7 +67,7 @@ ENTRY(v6_flush_kern_cache_all)
 #ifndef CONFIG_ARM_ERRATA_411920
         mcr     p15, 0, r0, c7, c5, 0           @ I+BTB cache invalidate
 #else
-        b       v6_icache_inval_all
+        b       v6_flush_icache_all
 #endif
 #else
         mcr     p15, 0, r0, c7, c15, 0          @ Cache clean+invalidate
@@ -138,7 +145,7 @@ ENTRY(v6_coherent_user_range)
 #ifndef CONFIG_ARM_ERRATA_411920
         mcr     p15, 0, r0, c7, c5, 0           @ I+BTB cache invalidate
 #else
-        b       v6_icache_inval_all
+        b       v6_flush_icache_all
 #endif
 #else
         mcr     p15, 0, r0, c7, c5, 6           @ invalidate BTB
@@ -312,6 +319,7 @@ ENDPROC(v6_dma_unmap_area)
 
         .type   v6_cache_fns, #object
 ENTRY(v6_cache_fns)
+        .long   v6_flush_icache_all
         .long   v6_flush_kern_cache_all
         .long   v6_flush_user_cache_all
         .long   v6_flush_user_cache_range
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 37c8157e116e..a3ebf7a4f49b 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -18,6 +18,21 @@
 #include "proc-macros.S"
 
 /*
+ *      v7_flush_icache_all()
+ *
+ *      Flush the whole I-cache.
+ *
+ *      Registers:
+ *      r0 - set to 0
+ */
+ENTRY(v7_flush_icache_all)
+        mov     r0, #0
+        ALT_SMP(mcr     p15, 0, r0, c7, c1, 0)          @ invalidate I-cache inner shareable
+        ALT_UP(mcr      p15, 0, r0, c7, c5, 0)          @ I+BTB cache invalidate
+        mov     pc, lr
+ENDPROC(v7_flush_icache_all)
+
+/*
  *      v7_flush_dcache_all()
  *
  *      Flush the whole D-cache.
@@ -91,11 +106,8 @@ ENTRY(v7_flush_kern_cache_all)
  THUMB( stmfd   sp!, {r4-r7, r9-r11, lr}        )
         bl      v7_flush_dcache_all
         mov     r0, #0
-#ifdef CONFIG_SMP
-        mcr     p15, 0, r0, c7, c1, 0           @ invalidate I-cache inner shareable
-#else
-        mcr     p15, 0, r0, c7, c5, 0           @ I+BTB cache invalidate
-#endif
+        ALT_SMP(mcr     p15, 0, r0, c7, c1, 0)  @ invalidate I-cache inner shareable
+        ALT_UP(mcr      p15, 0, r0, c7, c5, 0)  @ I+BTB cache invalidate
  ARM(   ldmfd   sp!, {r4-r5, r7, r9-r11, lr}    )
  THUMB( ldmfd   sp!, {r4-r7, r9-r11, lr}        )
         mov     pc, lr
@@ -171,11 +183,8 @@ ENTRY(v7_coherent_user_range)
         cmp     r0, r1
         blo     1b
         mov     r0, #0
-#ifdef CONFIG_SMP
-        mcr     p15, 0, r0, c7, c1, 6           @ invalidate BTB Inner Shareable
-#else
-        mcr     p15, 0, r0, c7, c5, 6           @ invalidate BTB
-#endif
+        ALT_SMP(mcr     p15, 0, r0, c7, c1, 6)  @ invalidate BTB Inner Shareable
+        ALT_UP(mcr      p15, 0, r0, c7, c5, 6)  @ invalidate BTB
         dsb
         isb
         mov     pc, lr
@@ -309,6 +318,7 @@ ENDPROC(v7_dma_unmap_area)
 
         .type   v7_cache_fns, #object
 ENTRY(v7_cache_fns)
+        .long   v7_flush_icache_all
         .long   v7_flush_kern_cache_all
         .long   v7_flush_user_cache_all
         .long   v7_flush_user_cache_range
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
index 598c51ad5071..b8061519ce77 100644
--- a/arch/arm/mm/copypage-v4mc.c
+++ b/arch/arm/mm/copypage-v4mc.c
@@ -73,7 +73,7 @@ void v4_mc_copy_user_highpage(struct page *to, struct page *from,
 {
         void *kto = kmap_atomic(to, KM_USER1);
 
-        if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
+        if (!test_and_set_bit(PG_dcache_clean, &from->flags))
                 __flush_dcache_page(page_mapping(from), from);
 
         spin_lock(&minicache_lock);
diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index f55fa1044f72..bdba6c65c901 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -79,7 +79,7 @@ static void v6_copy_user_highpage_aliasing(struct page *to,
         unsigned int offset = CACHE_COLOUR(vaddr);
         unsigned long kfrom, kto;
 
-        if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
+        if (!test_and_set_bit(PG_dcache_clean, &from->flags))
                 __flush_dcache_page(page_mapping(from), from);
 
         /* FIXME: not highmem safe */
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c
index 9920c0ae2096..649bbcd325bf 100644
--- a/arch/arm/mm/copypage-xscale.c
+++ b/arch/arm/mm/copypage-xscale.c
@@ -95,7 +95,7 @@ void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
 {
         void *kto = kmap_atomic(to, KM_USER1);
 
-        if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
+        if (!test_and_set_bit(PG_dcache_clean, &from->flags))
                 __flush_dcache_page(page_mapping(from), from);
 
         spin_lock(&minicache_lock);
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index c704eed63c5d..e4dd0646e859 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -229,6 +229,8 @@ __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot)
                         }
                 } while (size -= PAGE_SIZE);
 
+                dsb();
+
                 return (void *)c->vm_start;
         }
         return NULL;
@@ -521,6 +523,12 @@ void ___dma_page_dev_to_cpu(struct page *page, unsigned long off,
                 outer_inv_range(paddr, paddr + size);
 
         dma_cache_maint_page(page, off, size, dir, dmac_unmap_area);
+
+        /*
+         * Mark the D-cache clean for this page to avoid extra flushing.
+         */
+        if (dir != DMA_TO_DEVICE && off == 0 && size >= PAGE_SIZE)
+                set_bit(PG_dcache_clean, &page->flags);
 }
 EXPORT_SYMBOL(___dma_page_dev_to_cpu);
 
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 9b906dec1ca1..8440d952ba6d 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -28,6 +28,7 @@
 
 static unsigned long shared_pte_mask = L_PTE_MT_BUFFERABLE;
 
+#if __LINUX_ARM_ARCH__ < 6
 /*
  * We take the easy way out of this problem - we make the
  * PTE uncacheable.  However, we leave the write buffer on.
@@ -141,7 +142,7 @@ make_coherent(struct address_space *mapping, struct vm_area_struct *vma,
  * a page table, or changing an existing PTE.  Basically, there are two
  * things that we need to take care of:
  *
- *  1. If PG_dcache_dirty is set for the page, we need to ensure
+ *  1. If PG_dcache_clean is not set for the page, we need to ensure
  *     that any cache entries for the kernels virtual memory
  *     range are written back to the page.
  *  2. If we have multiple shared mappings of the same space in
@@ -168,10 +169,8 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
                 return;
 
         mapping = page_mapping(page);
-#ifndef CONFIG_SMP
-        if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
+        if (!test_and_set_bit(PG_dcache_clean, &page->flags))
                 __flush_dcache_page(mapping, page);
-#endif
         if (mapping) {
                 if (cache_is_vivt())
                         make_coherent(mapping, vma, addr, ptep, pfn);
@@ -179,6 +178,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
                         __flush_icache_all();
         }
 }
+#endif  /* __LINUX_ARM_ARCH__ < 6 */
 
 /*
  * Check whether the write buffer has physical address aliasing
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 23b0b03af5ea..1e21e125fe3a 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -581,6 +581,19 @@ static struct fsr_info ifsr_info[] = {
         { do_bad,               SIGBUS,  0,             "unknown 31"                       },
 };
 
+void __init
+hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *),
+                 int sig, int code, const char *name)
+{
+        if (nr < 0 || nr >= ARRAY_SIZE(ifsr_info))
+                BUG();
+
+        ifsr_info[nr].fn   = fn;
+        ifsr_info[nr].sig  = sig;
+        ifsr_info[nr].code = code;
+        ifsr_info[nr].name = name;
+}
+
 asmlinkage void __exception
 do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
 {
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index c6844cb9b508..391ffae75098 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -17,6 +17,7 @@
 #include <asm/smp_plat.h>
 #include <asm/system.h>
 #include <asm/tlbflush.h>
+#include <asm/smp_plat.h>
 
 #include "mm.h"
 
@@ -39,6 +40,18 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
             : "cc");
 }
 
+static void flush_icache_alias(unsigned long pfn, unsigned long vaddr, unsigned long len)
+{
+        unsigned long colour = CACHE_COLOUR(vaddr);
+        unsigned long offset = vaddr & (PAGE_SIZE - 1);
+        unsigned long to;
+
+        set_pte_ext(TOP_PTE(ALIAS_FLUSH_START) + colour, pfn_pte(pfn, PAGE_KERNEL), 0);
+        to = ALIAS_FLUSH_START + (colour << PAGE_SHIFT) + offset;
+        flush_tlb_kernel_page(to);
+        flush_icache_range(to, to + len);
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
         if (cache_is_vivt()) {
@@ -89,16 +102,16 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsig
         if (vma->vm_flags & VM_EXEC && icache_is_vivt_asid_tagged())
                 __flush_icache_all();
 }
+
 #else
-#define flush_pfn_alias(pfn,vaddr)      do { } while (0)
+#define flush_pfn_alias(pfn,vaddr)              do { } while (0)
+#define flush_icache_alias(pfn,vaddr,len)       do { } while (0)
 #endif
 
-#ifdef CONFIG_SMP
 static void flush_ptrace_access_other(void *args)
 {
         __flush_icache_all();
 }
-#endif
 
 static
 void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
@@ -118,15 +131,16 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
                 return;
         }
 
-        /* VIPT non-aliasing cache */
+        /* VIPT non-aliasing D-cache */
         if (vma->vm_flags & VM_EXEC) {
                 unsigned long addr = (unsigned long)kaddr;
-                __cpuc_coherent_kern_range(addr, addr + len);
-#ifdef CONFIG_SMP
+                if (icache_is_vipt_aliasing())
+                        flush_icache_alias(page_to_pfn(page), uaddr, len);
+                else
+                        __cpuc_coherent_kern_range(addr, addr + len);
                 if (cache_ops_need_broadcast())
                         smp_call_function(flush_ptrace_access_other,
                                           NULL, 1);
-#endif
         }
 }
 
@@ -215,6 +229,36 @@ static void __flush_dcache_aliases(struct address_space *mapping, struct page *p
         flush_dcache_mmap_unlock(mapping);
 }
 
+#if __LINUX_ARM_ARCH__ >= 6
+void __sync_icache_dcache(pte_t pteval)
+{
+        unsigned long pfn;
+        struct page *page;
+        struct address_space *mapping;
+
+        if (!pte_present_user(pteval))
+                return;
+        if (cache_is_vipt_nonaliasing() && !pte_exec(pteval))
+                /* only flush non-aliasing VIPT caches for exec mappings */
+                return;
+        pfn = pte_pfn(pteval);
+        if (!pfn_valid(pfn))
+                return;
+
+        page = pfn_to_page(pfn);
+        if (cache_is_vipt_aliasing())
+                mapping = page_mapping(page);
+        else
+                mapping = NULL;
+
+        if (!test_and_set_bit(PG_dcache_clean, &page->flags))
+                __flush_dcache_page(mapping, page);
+        /* pte_exec() already checked above for non-aliasing VIPT cache */
+        if (cache_is_vipt_nonaliasing() || pte_exec(pteval))
+                __flush_icache_all();
+}
+#endif
+
 /*
  * Ensure cache coherency between kernel mapping and userspace mapping
  * of this page.
@@ -246,17 +290,16 @@ void flush_dcache_page(struct page *page)
 
         mapping = page_mapping(page);
 
-#ifndef CONFIG_SMP
-        if (!PageHighMem(page) && mapping && !mapping_mapped(mapping))
-                set_bit(PG_dcache_dirty, &page->flags);
-        else
-#endif
-        {
+        if (!cache_ops_need_broadcast() &&
+            mapping && !mapping_mapped(mapping))
+                clear_bit(PG_dcache_clean, &page->flags);
+        else {
                 __flush_dcache_page(mapping, page);
                 if (mapping && cache_is_vivt())
                         __flush_dcache_aliases(mapping, page);
                 else if (mapping)
                         __flush_icache_all();
+                set_bit(PG_dcache_clean, &page->flags);
         }
 }
 EXPORT_SYMBOL(flush_dcache_page);
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 7185b00650fe..36c4553ffcce 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -277,7 +277,7 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
 
         /* Register the kernel text, kernel data and initrd with memblock. */
 #ifdef CONFIG_XIP_KERNEL
-        memblock_reserve(__pa(_data), _end - _data);
+        memblock_reserve(__pa(_sdata), _end - _sdata);
 #else
         memblock_reserve(__pa(_stext), _end - _stext);
 #endif
@@ -545,7 +545,7 @@ void __init mem_init(void)
 
                         MLK_ROUNDUP(__init_begin, __init_end),
                         MLK_ROUNDUP(_text, _etext),
-                        MLK_ROUNDUP(_data, _edata));
+                        MLK_ROUNDUP(_sdata, _edata));
 
 #undef MLK
 #undef MLM
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 6e1c4f6a2b3f..e2335811c02e 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -15,6 +15,7 @@
 #include <linux/nodemask.h>
 #include <linux/memblock.h>
 #include <linux/sort.h>
+#include <linux/fs.h>
 
 #include <asm/cputype.h>
 #include <asm/sections.h>
@@ -246,6 +247,9 @@ static struct mem_type mem_types[] = {
                 .domain    = DOMAIN_USER,
         },
         [MT_MEMORY] = {
+                .prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+                                L_PTE_USER | L_PTE_EXEC,
+                .prot_l1   = PMD_TYPE_TABLE,
                 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
                 .domain    = DOMAIN_KERNEL,
         },
@@ -254,6 +258,9 @@ static struct mem_type mem_types[] = {
                 .domain    = DOMAIN_KERNEL,
         },
         [MT_MEMORY_NONCACHED] = {
+                .prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+                                L_PTE_USER | L_PTE_EXEC | L_PTE_MT_BUFFERABLE,
+                .prot_l1   = PMD_TYPE_TABLE,
                 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
                 .domain    = DOMAIN_KERNEL,
         },
@@ -303,9 +310,8 @@ static void __init build_mem_type_table(void)
                         cachepolicy = CPOLICY_WRITEBACK;
                 ecc_mask = 0;
         }
-#ifdef CONFIG_SMP
-        cachepolicy = CPOLICY_WRITEALLOC;
-#endif
+        if (is_smp())
+                cachepolicy = CPOLICY_WRITEALLOC;
 
         /*
          * Strip out features not present on earlier architectures.
@@ -399,21 +405,22 @@ static void __init build_mem_type_table(void)
         cp = &cache_policies[cachepolicy];
         vecs_pgprot = kern_pgprot = user_pgprot = cp->pte;
 
-#ifndef CONFIG_SMP
         /*
          * Only use write-through for non-SMP systems
          */
-        if (cpu_arch >= CPU_ARCH_ARMv5 && cachepolicy > CPOLICY_WRITETHROUGH)
+        if (!is_smp() && cpu_arch >= CPU_ARCH_ARMv5 && cachepolicy > CPOLICY_WRITETHROUGH)
                 vecs_pgprot = cache_policies[CPOLICY_WRITETHROUGH].pte;
-#endif
 
         /*
          * Enable CPU-specific coherency if supported.
          * (Only available on XSC3 at the moment.)
          */
-        if (arch_is_coherent() && cpu_is_xsc3())
+        if (arch_is_coherent() && cpu_is_xsc3()) {
                 mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
-
+                mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
+                mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
+                mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
+        }
         /*
          * ARMv6 and above have extended page tables.
          */
@@ -426,20 +433,23 @@ static void __init build_mem_type_table(void)
                 mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
                 mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 
-#ifdef CONFIG_SMP
-                /*
-                 * Mark memory with the "shared" attribute for SMP systems
-                 */
-                user_pgprot |= L_PTE_SHARED;
-                kern_pgprot |= L_PTE_SHARED;
-                vecs_pgprot |= L_PTE_SHARED;
-                mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_S;
-                mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
-                mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
-                mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
-                mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
-                mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
-#endif
+                if (is_smp()) {
+                        /*
+                         * Mark memory with the "shared" attribute
+                         * for SMP systems
+                         */
+                        user_pgprot |= L_PTE_SHARED;
+                        kern_pgprot |= L_PTE_SHARED;
+                        vecs_pgprot |= L_PTE_SHARED;
+                        mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_S;
+                        mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
+                        mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
+                        mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
+                        mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
+                        mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
+                        mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
+                        mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
+                }
         }
 
         /*
@@ -475,6 +485,8 @@ static void __init build_mem_type_table(void)
         mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
         mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
         mem_types[MT_MEMORY].prot_sect |= ecc_mask | cp->pmd;
+        mem_types[MT_MEMORY].prot_pte |= kern_pgprot;
+        mem_types[MT_MEMORY_NONCACHED].prot_sect |= ecc_mask;
         mem_types[MT_ROM].prot_sect |= cp->pmd;
 
         switch (cp->pmd) {
@@ -498,6 +510,19 @@ static void __init build_mem_type_table(void)
         }
 }
 
+#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
+pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+                              unsigned long size, pgprot_t vma_prot)
+{
+        if (!pfn_valid(pfn))
+                return pgprot_noncached(vma_prot);
+        else if (file->f_flags & O_SYNC)
+                return pgprot_writecombine(vma_prot);
+        return vma_prot;
+}
+EXPORT_SYMBOL(phys_mem_access_prot);
+#endif
+
 #define vectors_base()  (vectors_high() ? 0xffff0000 : 0)
 
 static void __init *early_alloc(unsigned long sz)
@@ -802,8 +827,7 @@ static void __init sanity_check_meminfo(void)
                          * rather difficult.
                          */
                         reason = "with VIPT aliasing cache";
-#ifdef CONFIG_SMP
-                } else if (tlb_ops_need_broadcast()) {
+                } else if (is_smp() && tlb_ops_need_broadcast()) {
                         /*
                          * kmap_high needs to occasionally flush TLB entries,
                          * however, if the TLB entries need to be broadcast
@@ -813,7 +837,6 @@ static void __init sanity_check_meminfo(void)
                          *   (must not be called with irqs off)
                          */
                         reason = "without hardware TLB ops broadcasting";
-#endif
                 }
                 if (reason) {
                         printk(KERN_CRIT "HIGHMEM is not supported %s, ignoring high memory\n",
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 22aac8515196..b95662dedb64 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -30,13 +30,10 @@
 #define TTB_RGN_WT      (2 << 3)
 #define TTB_RGN_WB      (3 << 3)
 
-#ifndef CONFIG_SMP
-#define TTB_FLAGS       TTB_RGN_WBWA
-#define PMD_FLAGS       PMD_SECT_WB
-#else
-#define TTB_FLAGS       TTB_RGN_WBWA|TTB_S
-#define PMD_FLAGS       PMD_SECT_WBWA|PMD_SECT_S
-#endif
+#define TTB_FLAGS_UP    TTB_RGN_WBWA
+#define PMD_FLAGS_UP    PMD_SECT_WB
+#define TTB_FLAGS_SMP   TTB_RGN_WBWA|TTB_S
+#define PMD_FLAGS_SMP   PMD_SECT_WBWA|PMD_SECT_S
 
 ENTRY(cpu_v6_proc_init)
         mov     pc, lr
@@ -97,7 +94,8 @@ ENTRY(cpu_v6_switch_mm)
 #ifdef CONFIG_MMU
         mov     r2, #0
         ldr     r1, [r1, #MM_CONTEXT_ID]        @ get mm->context.id
-        orr     r0, r0, #TTB_FLAGS
+        ALT_SMP(orr     r0, r0, #TTB_FLAGS_SMP)
+        ALT_UP(orr      r0, r0, #TTB_FLAGS_UP)
         mcr     p15, 0, r2, c7, c5, 6           @ flush BTAC/BTB
         mcr     p15, 0, r2, c7, c10, 4          @ drain write buffer
         mcr     p15, 0, r0, c2, c0, 0           @ set TTB 0
@@ -156,9 +154,11 @@ cpu_pj4_name:
  */
 __v6_setup:
 #ifdef CONFIG_SMP
-        mrc     p15, 0, r0, c1, c0, 1           @ Enable SMP/nAMP mode
+        ALT_SMP(mrc     p15, 0, r0, c1, c0, 1)  @ Enable SMP/nAMP mode
+        ALT_UP(nop)
         orr     r0, r0, #0x20
-        mcr     p15, 0, r0, c1, c0, 1
+        ALT_SMP(mcr     p15, 0, r0, c1, c0, 1)
+        ALT_UP(nop)
 #endif
 
         mov     r0, #0
@@ -169,7 +169,8 @@ __v6_setup:
 #ifdef CONFIG_MMU
         mcr     p15, 0, r0, c8, c7, 0           @ invalidate I + D TLBs
         mcr     p15, 0, r0, c2, c0, 2           @ TTB control register
-        orr     r4, r4, #TTB_FLAGS
+        ALT_SMP(orr     r4, r4, #TTB_FLAGS_SMP)
+        ALT_UP(orr      r4, r4, #TTB_FLAGS_UP)
         mcr     p15, 0, r4, c2, c0, 1           @ load TTB1
 #endif /* CONFIG_MMU */
         adr     r5, v6_crval
@@ -225,10 +226,16 @@ cpu_elf_name:
 __v6_proc_info:
         .long   0x0007b000
         .long   0x0007f000
-        .long   PMD_TYPE_SECT | \
+        ALT_SMP(.long \
+                PMD_TYPE_SECT | \
+                PMD_SECT_AP_WRITE | \
+                PMD_SECT_AP_READ | \
+                PMD_FLAGS_SMP)
+        ALT_UP(.long \
+                PMD_TYPE_SECT | \
                 PMD_SECT_AP_WRITE | \
                 PMD_SECT_AP_READ | \
-                PMD_FLAGS
+                PMD_FLAGS_UP)
         .long   PMD_TYPE_SECT | \
                 PMD_SECT_XN | \
                 PMD_SECT_AP_WRITE | \
@@ -249,10 +256,16 @@ __v6_proc_info:
 __pj4_v6_proc_info:
         .long   0x560f5810
         .long   0xff0ffff0
-        .long   PMD_TYPE_SECT | \
+        ALT_SMP(.long \
+                PMD_TYPE_SECT | \
+                PMD_SECT_AP_WRITE | \
+                PMD_SECT_AP_READ | \
+                PMD_FLAGS_SMP)
+        ALT_UP(.long \
+                PMD_TYPE_SECT | \
                 PMD_SECT_AP_WRITE | \
                 PMD_SECT_AP_READ | \
-                PMD_FLAGS
+                PMD_FLAGS_UP)
         .long   PMD_TYPE_SECT | \
                 PMD_SECT_XN | \
                 PMD_SECT_AP_WRITE | \
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 6a8506d99ee9..df422fee1cb6 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -30,15 +30,13 @@
 #define TTB_IRGN_WT     ((1 << 0) | (0 << 6))
 #define TTB_IRGN_WB     ((1 << 0) | (1 << 6))
 
-#ifndef CONFIG_SMP
 /* PTWs cacheable, inner WB not shareable, outer WB not shareable */
-#define TTB_FLAGS       TTB_IRGN_WB|TTB_RGN_OC_WB
-#define PMD_FLAGS       PMD_SECT_WB
-#else
+#define TTB_FLAGS_UP    TTB_IRGN_WB|TTB_RGN_OC_WB
+#define PMD_FLAGS_UP    PMD_SECT_WB
+
 /* PTWs cacheable, inner WBWA shareable, outer WBWA not shareable */
-#define TTB_FLAGS       TTB_IRGN_WBWA|TTB_S|TTB_NOS|TTB_RGN_OC_WBWA
-#define PMD_FLAGS       PMD_SECT_WBWA|PMD_SECT_S
-#endif
+#define TTB_FLAGS_SMP   TTB_IRGN_WBWA|TTB_S|TTB_NOS|TTB_RGN_OC_WBWA
+#define PMD_FLAGS_SMP   PMD_SECT_WBWA|PMD_SECT_S
 
 ENTRY(cpu_v7_proc_init)
         mov     pc, lr
@@ -105,7 +103,8 @@ ENTRY(cpu_v7_switch_mm)
 #ifdef CONFIG_MMU
         mov     r2, #0
         ldr     r1, [r1, #MM_CONTEXT_ID]        @ get mm->context.id
-        orr     r0, r0, #TTB_FLAGS
+        ALT_SMP(orr     r0, r0, #TTB_FLAGS_SMP)
+        ALT_UP(orr      r0, r0, #TTB_FLAGS_UP)
 #ifdef CONFIG_ARM_ERRATA_430973
         mcr     p15, 0, r2, c7, c5, 6           @ flush BTAC/BTB
 #endif
@@ -186,13 +185,15 @@ cpu_v7_name:
  *      It is assumed that:
  *      - cache type register is implemented
  */
-__v7_setup:
+__v7_ca9mp_setup:
 #ifdef CONFIG_SMP
-        mrc     p15, 0, r0, c1, c0, 1
+        ALT_SMP(mrc     p15, 0, r0, c1, c0, 1)
+        ALT_UP(mov      r0, #(1 << 6))          @ fake it for UP
         tst     r0, #(1 << 6)                   @ SMP/nAMP mode enabled?
         orreq   r0, r0, #(1 << 6) | (1 << 0)    @ Enable SMP/nAMP mode and
         mcreq   p15, 0, r0, c1, c0, 1           @ TLB ops broadcasting
 #endif
+__v7_setup:
         adr     r12, __v7_setup_stack           @ the local stack
         stmia   r12, {r0-r5, r7, r9, r11, lr}
         bl      v7_flush_dcache_all
@@ -201,11 +202,16 @@ __v7_setup:
         mrc     p15, 0, r0, c0, c0, 0           @ read main ID register
         and     r10, r0, #0xff000000            @ ARM?
         teq     r10, #0x41000000
-        bne     2f
+        bne     3f
         and     r5, r0, #0x00f00000             @ variant
         and     r6, r0, #0x0000000f             @ revision
-        orr     r0, r6, r5, lsr #20-4           @ combine variant and revision
+        orr     r6, r6, r5, lsr #20-4           @ combine variant and revision
+        ubfx    r0, r0, #4, #12                 @ primary part number
 
+        /* Cortex-A8 Errata */
+        ldr     r10, =0x00000c08                @ Cortex-A8 primary part number
+        teq     r0, r10
+        bne     2f
 #ifdef CONFIG_ARM_ERRATA_430973
         teq     r5, #0x00100000                 @ only present in r1p*
         mrceq   p15, 0, r10, c1, c0, 1          @ read aux control register
@@ -213,21 +219,42 @@ __v7_setup:
         mcreq   p15, 0, r10, c1, c0, 1          @ write aux control register
 #endif
 #ifdef CONFIG_ARM_ERRATA_458693
-        teq     r0, #0x20                       @ only present in r2p0
+        teq     r6, #0x20                       @ only present in r2p0
         mrceq   p15, 0, r10, c1, c0, 1          @ read aux control register
         orreq   r10, r10, #(1 << 5)             @ set L1NEON to 1
         orreq   r10, r10, #(1 << 9)             @ set PLDNOP to 1
         mcreq   p15, 0, r10, c1, c0, 1          @ write aux control register
 #endif
 #ifdef CONFIG_ARM_ERRATA_460075
-        teq     r0, #0x20                       @ only present in r2p0
+        teq     r6, #0x20                       @ only present in r2p0
         mrceq   p15, 1, r10, c9, c0, 2          @ read L2 cache aux ctrl register
         tsteq   r10, #1 << 22
         orreq   r10, r10, #(1 << 22)            @ set the Write Allocate disable bit
         mcreq   p15, 1, r10, c9, c0, 2          @ write the L2 cache aux ctrl register
 #endif
+        b       3f
+
+        /* Cortex-A9 Errata */
+2:      ldr     r10, =0x00000c09                @ Cortex-A9 primary part number
+        teq     r0, r10
+        bne     3f
+#ifdef CONFIG_ARM_ERRATA_742230
+        cmp     r6, #0x22                       @ only present up to r2p2
+        mrcle   p15, 0, r10, c15, c0, 1         @ read diagnostic register
+        orrle   r10, r10, #1 << 4               @ set bit #4
+        mcrle   p15, 0, r10, c15, c0, 1         @ write diagnostic register
+#endif
+#ifdef CONFIG_ARM_ERRATA_742231
+        teq     r6, #0x20                       @ present in r2p0
+        teqne   r6, #0x21                       @ present in r2p1
+        teqne   r6, #0x22                       @ present in r2p2
+        mrceq   p15, 0, r10, c15, c0, 1         @ read diagnostic register
+        orreq   r10, r10, #1 << 12              @ set bit #12
+        orreq   r10, r10, #1 << 22              @ set bit #22
+        mcreq   p15, 0, r10, c15, c0, 1         @ write diagnostic register
+#endif
 
-2:      mov     r10, #0
+3:      mov     r10, #0
 #ifdef HARVARD_CACHE
         mcr     p15, 0, r10, c7, c5, 0          @ I+BTB cache invalidate
 #endif
@@ -235,7 +262,8 @@ __v7_setup:
 #ifdef CONFIG_MMU
         mcr     p15, 0, r10, c8, c7, 0          @ invalidate I + D TLBs
         mcr     p15, 0, r10, c2, c0, 2          @ TTB control register
-        orr     r4, r4, #TTB_FLAGS
+        ALT_SMP(orr     r4, r4, #TTB_FLAGS_SMP)
+        ALT_UP(orr      r4, r4, #TTB_FLAGS_UP)
         mcr     p15, 0, r4, c2, c0, 1           @ load TTB1
         mov     r10, #0x1f                      @ domains 0, 1 = manager
         mcr     p15, 0, r10, c3, c0, 0          @ load domain access register
@@ -323,6 +351,35 @@ cpu_elf_name:
 
         .section ".proc.info.init", #alloc, #execinstr
 
+        .type   __v7_ca9mp_proc_info, #object
+__v7_ca9mp_proc_info:
+        .long   0x410fc090              @ Required ID value
+        .long   0xff0ffff0              @ Mask for ID
+        ALT_SMP(.long \
+                PMD_TYPE_SECT | \
+                PMD_SECT_AP_WRITE | \
+                PMD_SECT_AP_READ | \
+                PMD_FLAGS_SMP)
+        ALT_UP(.long \
+                PMD_TYPE_SECT | \
+                PMD_SECT_AP_WRITE | \
+                PMD_SECT_AP_READ | \
+                PMD_FLAGS_UP)
+        .long   PMD_TYPE_SECT | \
+                PMD_SECT_XN | \
+                PMD_SECT_AP_WRITE | \
+                PMD_SECT_AP_READ
+        b       __v7_ca9mp_setup
+        .long   cpu_arch_name
+        .long   cpu_elf_name
+        .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+        .long   cpu_v7_name
+        .long   v7_processor_functions
+        .long   v7wbi_tlb_fns
+        .long   v6_user_fns
+        .long   v7_cache_fns
+        .size   __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
+
         /*
          * Match any ARMv7 processor core.
          */
@@ -330,10 +387,16 @@ cpu_elf_name:
 __v7_proc_info:
         .long   0x000f0000              @ Required ID value
         .long   0x000f0000              @ Mask for ID
-        .long   PMD_TYPE_SECT | \
+        ALT_SMP(.long \
+                PMD_TYPE_SECT | \
+                PMD_SECT_AP_WRITE | \
+                PMD_SECT_AP_READ | \
+                PMD_FLAGS_SMP)
+        ALT_UP(.long \
+                PMD_TYPE_SECT | \
                 PMD_SECT_AP_WRITE | \
                 PMD_SECT_AP_READ | \
-                PMD_FLAGS
+                PMD_FLAGS_UP)
         .long   PMD_TYPE_SECT | \
                 PMD_SECT_XN | \
                 PMD_SECT_AP_WRITE | \
diff --git a/arch/arm/mm/tlb-v7.S b/arch/arm/mm/tlb-v7.S
index f3f288a9546d..53cd5b454673 100644
--- a/arch/arm/mm/tlb-v7.S
+++ b/arch/arm/mm/tlb-v7.S
@@ -13,6 +13,7 @@
  */
 #include <linux/init.h>
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 #include <asm/asm-offsets.h>
 #include <asm/page.h>
 #include <asm/tlbflush.h>
@@ -41,20 +42,15 @@ ENTRY(v7wbi_flush_user_tlb_range)
         orr     r0, r3, r0, lsl #PAGE_SHIFT     @ Create initial MVA
         mov     r1, r1, lsl #PAGE_SHIFT
 1:
-#ifdef CONFIG_SMP
-        mcr     p15, 0, r0, c8, c3, 1           @ TLB invalidate U MVA (shareable) 
-#else
-        mcr     p15, 0, r0, c8, c7, 1           @ TLB invalidate U MVA
-#endif
+        ALT_SMP(mcr     p15, 0, r0, c8, c3, 1)  @ TLB invalidate U MVA (shareable)
+        ALT_UP(mcr      p15, 0, r0, c8, c7, 1)  @ TLB invalidate U MVA
+
         add     r0, r0, #PAGE_SZ
         cmp     r0, r1
         blo     1b
         mov     ip, #0
-#ifdef CONFIG_SMP
-        mcr     p15, 0, ip, c7, c1, 6           @ flush BTAC/BTB Inner Shareable
-#else
-        mcr     p15, 0, ip, c7, c5, 6           @ flush BTAC/BTB
-#endif
+        ALT_SMP(mcr     p15, 0, ip, c7, c1, 6)  @ flush BTAC/BTB Inner Shareable
+        ALT_UP(mcr      p15, 0, ip, c7, c5, 6)  @ flush BTAC/BTB
         dsb
         mov     pc, lr
 ENDPROC(v7wbi_flush_user_tlb_range)
@@ -74,20 +70,14 @@ ENTRY(v7wbi_flush_kern_tlb_range)
         mov     r0, r0, lsl #PAGE_SHIFT
         mov     r1, r1, lsl #PAGE_SHIFT
 1:
-#ifdef CONFIG_SMP
-        mcr     p15, 0, r0, c8, c3, 1           @ TLB invalidate U MVA (shareable)
-#else
-        mcr     p15, 0, r0, c8, c7, 1           @ TLB invalidate U MVA
-#endif
+        ALT_SMP(mcr     p15, 0, r0, c8, c3, 1)  @ TLB invalidate U MVA (shareable)
+        ALT_UP(mcr      p15, 0, r0, c8, c7, 1)  @ TLB invalidate U MVA
         add     r0, r0, #PAGE_SZ
         cmp     r0, r1
         blo     1b
         mov     r2, #0
-#ifdef CONFIG_SMP
-        mcr     p15, 0, r2, c7, c1, 6           @ flush BTAC/BTB Inner Shareable
-#else
-        mcr     p15, 0, r2, c7, c5, 6           @ flush BTAC/BTB
-#endif
+        ALT_SMP(mcr     p15, 0, r2, c7, c1, 6)  @ flush BTAC/BTB Inner Shareable
+        ALT_UP(mcr      p15, 0, r2, c7, c5, 6)  @ flush BTAC/BTB
         dsb
         isb
         mov     pc, lr
@@ -99,5 +89,6 @@ ENDPROC(v7wbi_flush_kern_tlb_range)
 ENTRY(v7wbi_tlb_fns)
         .long   v7wbi_flush_user_tlb_range
         .long   v7wbi_flush_kern_tlb_range
-        .long   v7wbi_tlb_flags
+        ALT_SMP(.long   v7wbi_tlb_flags_smp)
+        ALT_UP(.long    v7wbi_tlb_flags_up)
         .size   v7wbi_tlb_fns, . - v7wbi_tlb_fns
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index 0527e65318f4..6785db4179b8 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -43,6 +43,7 @@ config ARCH_MXC91231
 config ARCH_MX5
         bool "MX5-based"
         select CPU_V7
+        select ARM_L1_CACHE_SHIFT_6
         help
           This enables support for systems based on the Freescale i.MX51 family
 
diff --git a/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h b/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h
index 634e3f4c454d..656acb45d434 100644
--- a/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h
+++ b/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h
@@ -37,9 +37,9 @@
  * mach-mx5/eukrea_mbimx51-baseboard.c for cpuimx51
  */
 
-extern void eukrea_mbimx25_baseboard_init(void);
+extern void eukrea_mbimxsd25_baseboard_init(void);
 extern void eukrea_mbimx27_baseboard_init(void);
-extern void eukrea_mbimx35_baseboard_init(void);
+extern void eukrea_mbimxsd35_baseboard_init(void);
 extern void eukrea_mbimx51_baseboard_init(void);
 
 #endif
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index b3da9aad4295..3703ab28257f 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -164,8 +164,9 @@ int tzic_enable_wake(int is_idle)
                 return -EAGAIN;
 
         for (i = 0; i < 4; i++) {
-                v = is_idle ? __raw_readl(TZIC_ENSET0(i)) : wakeup_intr[i];
-                __raw_writel(v, TZIC_WAKEUP0(i));
+                v = is_idle ? __raw_readl(tzic_base + TZIC_ENSET0(i)) :
+                        wakeup_intr[i];
+                __raw_writel(v, tzic_base + TZIC_WAKEUP0(i));
         }
 
         return 0;
diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c
index ea3ca86c5283..aedf9c1d645e 100644
--- a/arch/arm/plat-nomadik/timer.c
+++ b/arch/arm/plat-nomadik/timer.c
@@ -1,5 +1,5 @@
 /*
- *  linux/arch/arm/mach-nomadik/timer.c
+ *  linux/arch/arm/plat-nomadik/timer.c
  *
  * Copyright (C) 2008 STMicroelectronics
  * Copyright (C) 2010 Alessandro Rubini
@@ -75,7 +75,7 @@ static void nmdk_clkevt_mode(enum clock_event_mode mode,
                 cr = readl(mtu_base + MTU_CR(1));
                 writel(0, mtu_base + MTU_LR(1));
                 writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(1));
-                writel(0x2, mtu_base + MTU_IMSC);
+                writel(1 << 1, mtu_base + MTU_IMSC);
                 break;
         case CLOCK_EVT_MODE_SHUTDOWN:
         case CLOCK_EVT_MODE_UNUSED:
@@ -131,25 +131,23 @@ void __init nmdk_timer_init(void)
 {
         unsigned long rate;
         struct clk *clk0;
-        struct clk *clk1;
-        u32 cr;
+        u32 cr = MTU_CRn_32BITS;
 
         clk0 = clk_get_sys("mtu0", NULL);
         BUG_ON(IS_ERR(clk0));
 
-        clk1 = clk_get_sys("mtu1", NULL);
-        BUG_ON(IS_ERR(clk1));
-
         clk_enable(clk0);
-        clk_enable(clk1);
 
         /*
-         * Tick rate is 2.4MHz for Nomadik and 110MHz for ux500:
-         * use a divide-by-16 counter if it's more than 16MHz
+         * Tick rate is 2.4MHz for Nomadik and 2.4Mhz, 100MHz or 133 MHz
+         * for ux500.
+         * Use a divide-by-16 counter if the tick rate is more than 32MHz.
+         * At 32 MHz, the timer (with 32 bit counter) can be programmed
+         * to wake-up at a max 127s a head in time. Dividing a 2.4 MHz timer
+         * with 16 gives too low timer resolution.
          */
-        cr = MTU_CRn_32BITS;;
         rate = clk_get_rate(clk0);
-        if (rate > 16 << 20) {
+        if (rate > 32000000) {
                 rate /= 16;
                 cr |= MTU_CRn_PRESCALE_16;
         } else {
@@ -170,15 +168,8 @@ void __init nmdk_timer_init(void)
                 pr_err("timer: failed to initialize clock source %s\n",
                        nmdk_clksrc.name);
 
-        /* Timer 1 is used for events, fix according to rate */
-        cr = MTU_CRn_32BITS;
-        rate = clk_get_rate(clk1);
-        if (rate > 16 << 20) {
-                rate /= 16;
-                cr |= MTU_CRn_PRESCALE_16;
-        } else {
-                cr |= MTU_CRn_PRESCALE_1;
-        }
+        /* Timer 1 is used for events */
+
         clockevents_calc_mult_shift(&nmdk_clkevt, rate, MTU_MIN_RANGE);
 
         writel(cr | MTU_CRn_ONESHOT, mtu_base + MTU_CR(1)); /* off, currently */
diff --git a/arch/arm/plat-omap/include/plat/smp.h b/arch/arm/plat-omap/include/plat/smp.h
index 5177a9c5a25a..ecd6a488c497 100644
--- a/arch/arm/plat-omap/include/plat/smp.h
+++ b/arch/arm/plat-omap/include/plat/smp.h
@@ -18,6 +18,7 @@
 #define OMAP_ARCH_SMP_H
 
 #include <asm/hardware/gic.h>
+#include <asm/smp_mpidr.h>
 
 /* Needed for secondary core boot */
 extern void omap_secondary_startup(void);
@@ -33,15 +34,4 @@ static inline void smp_cross_call(const struct cpumask *mask)
         gic_raise_softirq(mask, 1);
 }
 
-/*
- * Read MPIDR: Multiprocessor affinity register
- */
-#define hard_smp_processor_id()                 \
-        ({                                              \
-                unsigned int cpunum;                    \
-                __asm__("mrc p15, 0, %0, c0, c0, 5"     \
-                        : "=r" (cpunum));               \
-                cpunum &= 0x0F;                         \
-        })
-
 #endif
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 226b2e858d6c..10b3b4c63372 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -220,20 +220,7 @@ void __init omap_map_sram(void)
         if (omap_sram_size == 0)
                 return;
 
-        if (cpu_is_omap24xx()) {
-                omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
-
-                base = OMAP2_SRAM_PA;
-                base = ROUND_DOWN(base, PAGE_SIZE);
-                omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
-        }
-
         if (cpu_is_omap34xx()) {
-                omap_sram_io_desc[0].virtual = OMAP3_SRAM_VA;
-                base = OMAP3_SRAM_PA;
-                base = ROUND_DOWN(base, PAGE_SIZE);
-                omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
-
                 /*
                  * SRAM must be marked as non-cached on OMAP3 since the
                  * CORE DPLL M2 divider change code (in SRAM) runs with the
@@ -244,13 +231,11 @@ void __init omap_map_sram(void)
                 omap_sram_io_desc[0].type = MT_MEMORY_NONCACHED;
         }
 
-        if (cpu_is_omap44xx()) {
-                omap_sram_io_desc[0].virtual = OMAP4_SRAM_VA;
-                base = OMAP4_SRAM_PA;
-                base = ROUND_DOWN(base, PAGE_SIZE);
-                omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
-        }
-        omap_sram_io_desc[0].length = 1024 * 1024;      /* Use section desc */
+        omap_sram_io_desc[0].virtual = omap_sram_base;
+        base = omap_sram_start;
+        base = ROUND_DOWN(base, PAGE_SIZE);
+        omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
+        omap_sram_io_desc[0].length = ROUND_DOWN(omap_sram_size, PAGE_SIZE);
         iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
 
         printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",
diff --git a/arch/arm/plat-pxa/pwm.c b/arch/arm/plat-pxa/pwm.c
index 0732c6c8d511..ef32686feef9 100644
--- a/arch/arm/plat-pxa/pwm.c
+++ b/arch/arm/plat-pxa/pwm.c
@@ -176,7 +176,7 @@ static inline void __add_pwm(struct pwm_device *pwm)
 
 static int __devinit pwm_probe(struct platform_device *pdev)
 {
-        struct platform_device_id *id = platform_get_device_id(pdev);
+        const struct platform_device_id *id = platform_get_device_id(pdev);
         struct pwm_device *pwm, *secondary = NULL;
         struct resource *r;
         int ret = 0;
diff --git a/arch/arm/plat-s5p/dev-fimc0.c b/arch/arm/plat-s5p/dev-fimc0.c
index d3f1a9b5d2b5..608770fc1531 100644
--- a/arch/arm/plat-s5p/dev-fimc0.c
+++ b/arch/arm/plat-s5p/dev-fimc0.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
@@ -18,7 +19,7 @@
 static struct resource s5p_fimc0_resource[] = {
         [0] = {
                 .start  = S5P_PA_FIMC0,
-                .end    = S5P_PA_FIMC0 + SZ_1M - 1,
+                .end    = S5P_PA_FIMC0 + SZ_4K - 1,
                 .flags  = IORESOURCE_MEM,
         },
         [1] = {
@@ -28,9 +29,15 @@ static struct resource s5p_fimc0_resource[] = {
         },
 };
 
+static u64 s5p_fimc0_dma_mask = DMA_BIT_MASK(32);
+
 struct platform_device s5p_device_fimc0 = {
         .name           = "s5p-fimc",
         .id             = 0,
         .num_resources  = ARRAY_SIZE(s5p_fimc0_resource),
         .resource       = s5p_fimc0_resource,
+        .dev            = {
+                .dma_mask               = &s5p_fimc0_dma_mask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        },
 };
diff --git a/arch/arm/plat-s5p/dev-fimc1.c b/arch/arm/plat-s5p/dev-fimc1.c
index 41bd6986d0ad..76e3a97a87d3 100644
--- a/arch/arm/plat-s5p/dev-fimc1.c
+++ b/arch/arm/plat-s5p/dev-fimc1.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
@@ -18,7 +19,7 @@
 static struct resource s5p_fimc1_resource[] = {
         [0] = {
                 .start  = S5P_PA_FIMC1,
-                .end    = S5P_PA_FIMC1 + SZ_1M - 1,
+                .end    = S5P_PA_FIMC1 + SZ_4K - 1,
                 .flags  = IORESOURCE_MEM,
         },
         [1] = {
@@ -28,9 +29,15 @@ static struct resource s5p_fimc1_resource[] = {
         },
 };
 
+static u64 s5p_fimc1_dma_mask = DMA_BIT_MASK(32);
+
 struct platform_device s5p_device_fimc1 = {
         .name           = "s5p-fimc",
         .id             = 1,
         .num_resources  = ARRAY_SIZE(s5p_fimc1_resource),
         .resource       = s5p_fimc1_resource,
+        .dev            = {
+                .dma_mask               = &s5p_fimc1_dma_mask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        },
 };
diff --git a/arch/arm/plat-s5p/dev-fimc2.c b/arch/arm/plat-s5p/dev-fimc2.c
index dfddeda6d4a3..24d29816fa2c 100644
--- a/arch/arm/plat-s5p/dev-fimc2.c
+++ b/arch/arm/plat-s5p/dev-fimc2.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
@@ -18,7 +19,7 @@
 static struct resource s5p_fimc2_resource[] = {
         [0] = {
                 .start  = S5P_PA_FIMC2,
-                .end    = S5P_PA_FIMC2 + SZ_1M - 1,
+                .end    = S5P_PA_FIMC2 + SZ_4K - 1,
                 .flags  = IORESOURCE_MEM,
         },
         [1] = {
@@ -28,9 +29,15 @@ static struct resource s5p_fimc2_resource[] = {
         },
 };
 
+static u64 s5p_fimc2_dma_mask = DMA_BIT_MASK(32);
+
 struct platform_device s5p_device_fimc2 = {
         .name           = "s5p-fimc",
         .id             = 2,
         .num_resources  = ARRAY_SIZE(s5p_fimc2_resource),
         .resource       = s5p_fimc2_resource,
+        .dev            = {
+                .dma_mask               = &s5p_fimc2_dma_mask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        },
 };
diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c
index 57b68a50f45e..e3d41eaed1ff 100644
--- a/arch/arm/plat-samsung/gpio-config.c
+++ b/arch/arm/plat-samsung/gpio-config.c
@@ -273,13 +273,13 @@ s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
         if (!chip)
                 return -EINVAL;
 
-        off = chip->chip.base - pin;
+        off = pin - chip->chip.base;
         shift = off * 2;
         reg = chip->base + 0x0C;
 
         drvstr = __raw_readl(reg);
-        drvstr = 0xffff & (0x3 << shift);
         drvstr = drvstr >> shift;
+        drvstr &= 0x3;
 
         return (__force s5p_gpio_drvstr_t)drvstr;
 }
@@ -296,11 +296,12 @@ int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
         if (!chip)
                 return -EINVAL;
 
-        off = chip->chip.base - pin;
+        off = pin - chip->chip.base;
         shift = off * 2;
         reg = chip->base + 0x0C;
 
         tmp = __raw_readl(reg);
+        tmp &= ~(0x3 << shift);
         tmp |= drvstr << shift;
 
         __raw_writel(tmp, reg);
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
index db4112c6f2be..1c6b92947c5d 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
@@ -143,12 +143,12 @@ extern s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin);
 /* Define values for the drvstr available for each gpio pin.
  *
  * These values control the value of the output signal driver strength,
- * configurable on most pins on the S5C series.
+ * configurable on most pins on the S5P series.
  */
-#define S5P_GPIO_DRVSTR_LV1     ((__force s5p_gpio_drvstr_t)0x00)
-#define S5P_GPIO_DRVSTR_LV2     ((__force s5p_gpio_drvstr_t)0x01)
-#define S5P_GPIO_DRVSTR_LV3     ((__force s5p_gpio_drvstr_t)0x10)
-#define S5P_GPIO_DRVSTR_LV4     ((__force s5p_gpio_drvstr_t)0x11)
+#define S5P_GPIO_DRVSTR_LV1     ((__force s5p_gpio_drvstr_t)0x0)
+#define S5P_GPIO_DRVSTR_LV2     ((__force s5p_gpio_drvstr_t)0x2)
+#define S5P_GPIO_DRVSTR_LV3     ((__force s5p_gpio_drvstr_t)0x1)
+#define S5P_GPIO_DRVSTR_LV4     ((__force s5p_gpio_drvstr_t)0x3)
 
 /**
  * s5c_gpio_get_drvstr() - get the driver streght value of a gpio pin
diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types
index 48cbdcb6bbd4..55590a4d87c9 100644
--- a/arch/arm/tools/mach-types
+++ b/arch/arm/tools/mach-types
@@ -12,7 +12,7 @@
 #
 #   http://www.arm.linux.org.uk/developer/machines/?action=new
 #
-# Last update: Mon Jul 12 21:10:14 2010
+# Last update: Thu Sep 9 22:43:01 2010
 #
 # machine_is_xxx        CONFIG_xxxx             MACH_TYPE_xxx           number
 #
@@ -2622,7 +2622,7 @@ kraken			MACH_KRAKEN		KRAKEN			2634
 gw2388                  MACH_GW2388             GW2388                  2635
 jadecpu                 MACH_JADECPU            JADECPU                 2636
 carlisle                MACH_CARLISLE           CARLISLE                2637
-lux_sf9                 MACH_LUX_SFT9           LUX_SFT9                2638
+lux_sf9                 MACH_LUX_SF9            LUX_SF9                 2638
 nemid_tb                MACH_NEMID_TB           NEMID_TB                2639
 terrier                 MACH_TERRIER            TERRIER                 2640
 turbot                  MACH_TURBOT             TURBOT                  2641
@@ -2950,3 +2950,97 @@ davinci_dm365_dvr	MACH_DAVINCI_DM365_DVR	DAVINCI_DM365_DVR	2963
 netviz                  MACH_NETVIZ             NETVIZ                  2964
 flexibity               MACH_FLEXIBITY          FLEXIBITY               2965
 wlan_computer           MACH_WLAN_COMPUTER      WLAN_COMPUTER           2966
+lpc24xx                 MACH_LPC24XX            LPC24XX                 2967
+spica                   MACH_SPICA              SPICA                   2968
+gpsdisplay              MACH_GPSDISPLAY         GPSDISPLAY              2969
+bipnet                  MACH_BIPNET             BIPNET                  2970
+overo_ctu_inertial      MACH_OVERO_CTU_INERTIAL OVERO_CTU_INERTIAL      2971
+davinci_dm355_mmm       MACH_DAVINCI_DM355_MMM  DAVINCI_DM355_MMM       2972
+pc9260_v2               MACH_PC9260_V2          PC9260_V2               2973
+ptx7545                 MACH_PTX7545            PTX7545                 2974
+tm_efdc                 MACH_TM_EFDC            TM_EFDC                 2975
+omap3_waldo1            MACH_OMAP3_WALDO1       OMAP3_WALDO1            2977
+flyer                   MACH_FLYER              FLYER                   2978
+tornado3240             MACH_TORNADO3240        TORNADO3240             2979
+soli_01                 MACH_SOLI_01            SOLI_01                 2980
+omapl138_europalc       MACH_OMAPL138_EUROPALC  OMAPL138_EUROPALC       2981
+helios_v1               MACH_HELIOS_V1          HELIOS_V1               2982
+netspace_lite_v2        MACH_NETSPACE_LITE_V2   NETSPACE_LITE_V2        2983
+ssc                     MACH_SSC                SSC                     2984
+premierwave_en          MACH_PREMIERWAVE_EN     PREMIERWAVE_EN          2985
+wasabi                  MACH_WASABI             WASABI                  2986
+vivow                   MACH_VIVOW              VIVOW                   2987
+mx50_rdp                MACH_MX50_RDP           MX50_RDP                2988
+universal               MACH_UNIVERSAL          UNIVERSAL               2989
+real6410                MACH_REAL6410           REAL6410                2990
+spx_sakura              MACH_SPX_SAKURA         SPX_SAKURA              2991
+ij3k_2440               MACH_IJ3K_2440          IJ3K_2440               2992
+omap3_bc10              MACH_OMAP3_BC10         OMAP3_BC10              2993
+thebe                   MACH_THEBE              THEBE                   2994
+rv082                   MACH_RV082              RV082                   2995
+armlguest               MACH_ARMLGUEST          ARMLGUEST               2996
+tjinc1000               MACH_TJINC1000          TJINC1000               2997
+dockstar                MACH_DOCKSTAR           DOCKSTAR                2998
+ax8008                  MACH_AX8008             AX8008                  2999
+gnet_sgce               MACH_GNET_SGCE          GNET_SGCE               3000
+pxwnas_500_1000         MACH_PXWNAS_500_1000    PXWNAS_500_1000         3001
+ea20                    MACH_EA20               EA20                    3002
+awm2                    MACH_AWM2               AWM2                    3003
+ti8148evm               MACH_TI8148EVM          TI8148EVM               3004
+tegra_seaboard          MACH_TEGRA_SEABOARD     TEGRA_SEABOARD          3005
+linkstation_chlv2       MACH_LINKSTATION_CHLV2  LINKSTATION_CHLV2       3006
+tera_pro2_rack          MACH_TERA_PRO2_RACK     TERA_PRO2_RACK          3007
+rubys                   MACH_RUBYS              RUBYS                   3008
+aquarius                MACH_AQUARIUS           AQUARIUS                3009
+mx53_ard                MACH_MX53_ARD           MX53_ARD                3010
+mx53_smd                MACH_MX53_SMD           MX53_SMD                3011
+lswxl                   MACH_LSWXL              LSWXL                   3012
+dove_avng_v3            MACH_DOVE_AVNG_V3       DOVE_AVNG_V3            3013
+sdi_ess_9263            MACH_SDI_ESS_9263       SDI_ESS_9263            3014
+jocpu550                MACH_JOCPU550           JOCPU550                3015
+msm8x60_rumi3           MACH_MSM8X60_RUMI3      MSM8X60_RUMI3           3016
+msm8x60_ffa             MACH_MSM8X60_FFA        MSM8X60_FFA             3017
+yanomami                MACH_YANOMAMI           YANOMAMI                3018
+gta04                   MACH_GTA04              GTA04                   3019
+cm_a510                 MACH_CM_A510            CM_A510                 3020
+omap3_rfs200            MACH_OMAP3_RFS200       OMAP3_RFS200            3021
+kx33xx                  MACH_KX33XX             KX33XX                  3022
+ptx7510                 MACH_PTX7510            PTX7510                 3023
+top9000                 MACH_TOP9000            TOP9000                 3024
+teenote                 MACH_TEENOTE            TEENOTE                 3025
+ts3                     MACH_TS3                TS3                     3026
+a0                      MACH_A0                 A0                      3027
+fsm9xxx_surf            MACH_FSM9XXX_SURF       FSM9XXX_SURF            3028
+fsm9xxx_ffa             MACH_FSM9XXX_FFA        FSM9XXX_FFA             3029
+frrhwcdma60w            MACH_FRRHWCDMA60W       FRRHWCDMA60W            3030
+remus                   MACH_REMUS              REMUS                   3031
+at91cap7xdk             MACH_AT91CAP7XDK        AT91CAP7XDK             3032
+at91cap7stk             MACH_AT91CAP7STK        AT91CAP7STK             3033
+kt_sbc_sam9_1           MACH_KT_SBC_SAM9_1      KT_SBC_SAM9_1           3034
+oratisrouter            MACH_ORATISROUTER       ORATISROUTER            3035
+armada_xp_db            MACH_ARMADA_XP_DB       ARMADA_XP_DB            3036
+spdm                    MACH_SPDM               SPDM                    3037
+gtib                    MACH_GTIB               GTIB                    3038
+dgm3240                 MACH_DGM3240            DGM3240                 3039
+atlas_i_lpe             MACH_ATLAS_I_LPE        ATLAS_I_LPE             3040
+htcmega                 MACH_HTCMEGA            HTCMEGA                 3041
+tricorder               MACH_TRICORDER          TRICORDER               3042
+tx28                    MACH_TX28               TX28                    3043
+bstbrd                  MACH_BSTBRD             BSTBRD                  3044
+pwb3090                 MACH_PWB3090            PWB3090                 3045
+idea6410                MACH_IDEA6410           IDEA6410                3046
+qbc9263                 MACH_QBC9263            QBC9263                 3047
+borabora                MACH_BORABORA           BORABORA                3048
+valdez                  MACH_VALDEZ             VALDEZ                  3049
+ls9g20                  MACH_LS9G20             LS9G20                  3050
+mios_v1                 MACH_MIOS_V1            MIOS_V1                 3051
+s5pc110_crespo          MACH_S5PC110_CRESPO     S5PC110_CRESPO          3052
+controltek9g20          MACH_CONTROLTEK9G20     CONTROLTEK9G20          3053
+tin307                  MACH_TIN307             TIN307                  3054
+tin510                  MACH_TIN510             TIN510                  3055
+bluecheese              MACH_BLUECHEESE         BLUECHEESE              3057
+tem3x30                 MACH_TEM3X30            TEM3X30                 3058
+harvest_desoto          MACH_HARVEST_DESOTO     HARVEST_DESOTO          3059
+msm8x60_qrdc            MACH_MSM8X60_QRDC       MSM8X60_QRDC            3060
+spear900                MACH_SPEAR900           SPEAR900                3061
+pcontrol_g20            MACH_PCONTROL_G20       PCONTROL_G20            3062
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 0974c0ecc594..bab01298b58e 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -121,6 +121,9 @@ static int restore_sigcontext(struct sigcontext __user *sc, int *_gr8)
         struct user_context *user = current->thread.user;
         unsigned long tbr, psr;
 
+        /* Always make any pending restarted system calls return -EINTR */
+        current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
         tbr = user->i.tbr;
         psr = user->i.psr;
         if (copy_from_user(user, &sc->sc_context, sizeof(sc->sc_context)))
@@ -250,6 +253,8 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
         struct sigframe __user *frame;
         int rsig;
 
+        set_fs(USER_DS);
+
         frame = get_sigframe(ka, sizeof(*frame));
 
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@@ -293,22 +298,23 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
                                    (unsigned long) (frame->retcode + 2));
         }
 
-        /* set up registers for signal handler */
-        __frame->sp   = (unsigned long) frame;
-        __frame->lr   = (unsigned long) &frame->retcode;
-        __frame->gr8  = sig;
-
+        /* Set up registers for the signal handler */
         if (current->personality & FDPIC_FUNCPTRS) {
                 struct fdpic_func_descriptor __user *funcptr =
                         (struct fdpic_func_descriptor __user *) ka->sa.sa_handler;
-                __get_user(__frame->pc, &funcptr->text);
-                __get_user(__frame->gr15, &funcptr->GOT);
+                struct fdpic_func_descriptor desc;
+                if (copy_from_user(&desc, funcptr, sizeof(desc)))
+                        goto give_sigsegv;
+                __frame->pc = desc.text;
+                __frame->gr15 = desc.GOT;
         } else {
                 __frame->pc   = (unsigned long) ka->sa.sa_handler;
                 __frame->gr15 = 0;
         }
 
-        set_fs(USER_DS);
+        __frame->sp   = (unsigned long) frame;
+        __frame->lr   = (unsigned long) &frame->retcode;
+        __frame->gr8  = sig;
 
         /* the tracer may want to single-step inside the handler */
         if (test_thread_flag(TIF_SINGLESTEP))
@@ -323,7 +329,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
         return 0;
 
 give_sigsegv:
-        force_sig(SIGSEGV, current);
+        force_sigsegv(sig, current);
         return -EFAULT;
 
 } /* end setup_frame() */
@@ -338,6 +344,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         struct rt_sigframe __user *frame;
         int rsig;
 
+        set_fs(USER_DS);
+
         frame = get_sigframe(ka, sizeof(*frame));
 
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@@ -392,22 +400,23 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         }
 
         /* Set up registers for signal handler */
-        __frame->sp  = (unsigned long) frame;
-        __frame->lr   = (unsigned long) &frame->retcode;
-        __frame->gr8 = sig;
-        __frame->gr9 = (unsigned long) &frame->info;
-
         if (current->personality & FDPIC_FUNCPTRS) {
                 struct fdpic_func_descriptor __user *funcptr =
                         (struct fdpic_func_descriptor __user *) ka->sa.sa_handler;
-                __get_user(__frame->pc, &funcptr->text);
-                __get_user(__frame->gr15, &funcptr->GOT);
+                struct fdpic_func_descriptor desc;
+                if (copy_from_user(&desc, funcptr, sizeof(desc)))
+                        goto give_sigsegv;
+                __frame->pc = desc.text;
+                __frame->gr15 = desc.GOT;
         } else {
                 __frame->pc   = (unsigned long) ka->sa.sa_handler;
                 __frame->gr15 = 0;
         }
 
-        set_fs(USER_DS);
+        __frame->sp  = (unsigned long) frame;
+        __frame->lr  = (unsigned long) &frame->retcode;
+        __frame->gr8 = sig;
+        __frame->gr9 = (unsigned long) &frame->info;
 
         /* the tracer may want to single-step inside the handler */
         if (test_thread_flag(TIF_SINGLESTEP))
@@ -422,7 +431,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         return 0;
 
 give_sigsegv:
-        force_sig(SIGSEGV, current);
+        force_sigsegv(sig, current);
         return -EFAULT;
 
 } /* end setup_rt_frame() */
@@ -437,7 +446,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
         int ret;
 
         /* Are we from a system call? */
-        if (in_syscall(__frame)) {
+        if (__frame->syscallno != -1) {
                 /* If so, check system call restarting.. */
                 switch (__frame->gr8) {
                 case -ERESTART_RESTARTBLOCK:
@@ -456,6 +465,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
                         __frame->gr8 = __frame->orig_gr8;
                         __frame->pc -= 4;
                 }
+                __frame->syscallno = -1;
         }
 
         /* Set up the stack frame */
@@ -538,10 +548,11 @@ no_signal:
                         break;
 
                 case -ERESTART_RESTARTBLOCK:
-                        __frame->gr8 = __NR_restart_syscall;
+                        __frame->gr7 = __NR_restart_syscall;
                         __frame->pc -= 4;
                         break;
                 }
+                __frame->syscallno = -1;
         }
 
         /* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
index e936804b7508..984221abb66d 100644
--- a/arch/h8300/include/asm/atomic.h
+++ b/arch/h8300/include/asm/atomic.h
@@ -18,7 +18,8 @@
 
 static __inline__ int atomic_add_return(int i, atomic_t *v)
 {
-        int ret,flags;
+        unsigned long flags;
+        int ret;
         local_irq_save(flags);
         ret = v->counter += i;
         local_irq_restore(flags);
@@ -30,7 +31,8 @@ static __inline__ int atomic_add_return(int i, atomic_t *v)
 
 static __inline__ int atomic_sub_return(int i, atomic_t *v)
 {
-        int ret,flags;
+        unsigned long flags;
+        int ret;
         local_irq_save(flags);
         ret = v->counter -= i;
         local_irq_restore(flags);
@@ -42,7 +44,8 @@ static __inline__ int atomic_sub_return(int i, atomic_t *v)
 
 static __inline__ int atomic_inc_return(atomic_t *v)
 {
-        int ret,flags;
+        unsigned long flags;
+        int ret;
         local_irq_save(flags);
         v->counter++;
         ret = v->counter;
@@ -64,7 +67,8 @@ static __inline__ int atomic_inc_return(atomic_t *v)
 
 static __inline__ int atomic_dec_return(atomic_t *v)
 {
-        int ret,flags;
+        unsigned long flags;
+        int ret;
         local_irq_save(flags);
         --v->counter;
         ret = v->counter;
@@ -76,7 +80,8 @@ static __inline__ int atomic_dec_return(atomic_t *v)
 
 static __inline__ int atomic_dec_and_test(atomic_t *v)
 {
-        int ret,flags;
+        unsigned long flags;
+        int ret;
         local_irq_save(flags);
         --v->counter;
         ret = v->counter;
diff --git a/arch/h8300/include/asm/system.h b/arch/h8300/include/asm/system.h
index d98d97685f06..16bf1560ff68 100644
--- a/arch/h8300/include/asm/system.h
+++ b/arch/h8300/include/asm/system.h
@@ -3,6 +3,8 @@
 
 #include <linux/linkage.h>
 
+struct pt_regs;
+
 /*
  * switch_to(n) should switch tasks to task ptr, first checking that
  * ptr isn't the current task, in which case it does nothing.  This
@@ -155,6 +157,6 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 
 #define arch_align_stack(x) (x)
 
-void die(char *str, struct pt_regs *fp, unsigned long err);
+extern void die(const char *str, struct pt_regs *fp, unsigned long err);
 
 #endif /* _H8300_SYSTEM_H */
diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c
index dc1ac0243b78..aaf5e5a48f93 100644
--- a/arch/h8300/kernel/sys_h8300.c
+++ b/arch/h8300/kernel/sys_h8300.c
@@ -56,8 +56,8 @@ int kernel_execve(const char *filename,
                   const char *const envp[])
 {
         register long res __asm__("er0");
-        register char *const *_c __asm__("er3") = envp;
-        register char *const *_b __asm__("er2") = argv;
+        register const char *const *_c __asm__("er3") = envp;
+        register const char *const *_b __asm__("er2") = argv;
         register const char * _a __asm__("er1") = filename;
         __asm__ __volatile__ ("mov.l %1,er0\n\t"
                         "trapa  #0\n\t"
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
index 3c0b66bc669e..dfa05bd908b6 100644
--- a/arch/h8300/kernel/traps.c
+++ b/arch/h8300/kernel/traps.c
@@ -96,7 +96,7 @@ static void dump(struct pt_regs *fp)
         printk("\n\n");
 }
 
-void die(char *str, struct pt_regs *fp, unsigned long err)
+void die(const char *str, struct pt_regs *fp, unsigned long err)
 {
         static int diecount;
 
diff --git a/arch/ia64/include/asm/compat.h b/arch/ia64/include/asm/compat.h
index f90edc85b509..9301a2821615 100644
--- a/arch/ia64/include/asm/compat.h
+++ b/arch/ia64/include/asm/compat.h
@@ -199,7 +199,7 @@ ptr_to_compat(void __user *uptr)
 }
 
 static __inline__ void __user *
-compat_alloc_user_space (long len)
+arch_compat_alloc_user_space (long len)
 {
         struct pt_regs *regs = task_pt_regs(current);
         return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 3567d54f8cee..331d42bda77a 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -420,22 +420,31 @@ EX(.fail_efault, ld8 r14=[r33])			// r14 <- *set
         ;;
 
         RSM_PSR_I(p0, r18, r19)                 // mask interrupt delivery
-        mov ar.ccv=0
         andcm r14=r14,r17                       // filter out SIGKILL & SIGSTOP
+        mov r8=EINVAL                   // default to EINVAL
 
 #ifdef CONFIG_SMP
-        mov r17=1
+        // __ticket_spin_trylock(r31)
+        ld4 r17=[r31]
         ;;
-        cmpxchg4.acq r18=[r31],r17,ar.ccv       // try to acquire the lock
-        mov r8=EINVAL                   // default to EINVAL
+        mov.m ar.ccv=r17
+        extr.u r9=r17,17,15
+        adds r19=1,r17
+        extr.u r18=r17,0,15
+        ;;
+        cmp.eq p6,p7=r9,r18
         ;;
+(p6)    cmpxchg4.acq r9=[r31],r19,ar.ccv
+(p6)    dep.z r20=r19,1,15              // next serving ticket for unlock
+(p7)    br.cond.spnt.many .lock_contention
+        ;;
+        cmp4.eq p0,p7=r9,r17
+        adds r31=2,r31
+(p7)    br.cond.spnt.many .lock_contention
         ld8 r3=[r2]                     // re-read current->blocked now that we hold the lock
-        cmp4.ne p6,p0=r18,r0
-(p6)    br.cond.spnt.many .lock_contention
         ;;
 #else
         ld8 r3=[r2]                     // re-read current->blocked now that we hold the lock
-        mov r8=EINVAL                   // default to EINVAL
 #endif
         add r18=IA64_TASK_PENDING_OFFSET+IA64_SIGPENDING_SIGNAL_OFFSET,r16
         add r19=IA64_TASK_SIGNAL_OFFSET,r16
@@ -490,7 +499,9 @@ EX(.fail_efault, ld8 r14=[r33])			// r14 <- *set
 (p6)    br.cond.spnt.few 1b                     // yes -> retry
 
 #ifdef CONFIG_SMP
-        st4.rel [r31]=r0                        // release the lock
+        // __ticket_spin_unlock(r31)
+        st2.rel [r31]=r20
+        mov r20=0                                       // i must not leak kernel bits...
 #endif
         SSM_PSR_I(p0, p9, r31)
         ;;
@@ -512,7 +523,8 @@ EX(.fail_efault, (p15) st8 [r34]=r3)
 
 .sig_pending:
 #ifdef CONFIG_SMP
-        st4.rel [r31]=r0                        // release the lock
+        // __ticket_spin_unlock(r31)
+        st2.rel [r31]=r20                       // release the lock
 #endif
         SSM_PSR_I(p0, p9, r17)
         ;;
diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h
index 9c1acb2b1a92..b2eeb0de1c8d 100644
--- a/arch/m32r/include/asm/signal.h
+++ b/arch/m32r/include/asm/signal.h
@@ -157,7 +157,6 @@ typedef struct sigaltstack {
 #undef __HAVE_ARCH_SIG_BITOPS
 
 struct pt_regs;
-extern int do_signal(struct pt_regs *regs, sigset_t *oldset);
 
 #define ptrace_signal_deliver(regs, cookie)     do { } while (0)
 
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 76125777483c..c70545689da8 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -351,6 +351,7 @@
 #define __ARCH_WANT_SYS_OLD_GETRLIMIT /*will be unused*/
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
 #define __IGNORE_lchown
 #define __IGNORE_setuid
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index 403869833b98..225412bc227e 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -235,10 +235,9 @@ work_resched:
 work_notifysig:                         ; deal with pending signals and
                                         ; notify-resume requests
         mv      r0, sp                  ; arg1 : struct pt_regs *regs
-        ldi     r1, #0                  ; arg2 : sigset_t *oldset
-        mv      r2, r9                  ; arg3 : __u32 thread_info_flags
+        mv      r1, r9                  ; arg2 : __u32 thread_info_flags
         bl      do_notify_resume
-        bra     restore_all
+        bra     resume_userspace
 
         ; perform syscall exit tracing
         ALIGN
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index e555091eb97c..0021ade4cba8 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -592,16 +592,17 @@ void user_enable_single_step(struct task_struct *child)
 
         if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
             != sizeof(insn))
-                break;
+                return -EIO;
 
         compute_next_pc(insn, pc, &next_pc, child);
         if (next_pc & 0x80000000)
-                break;
+                return -EIO;
 
         if (embed_debug_trap(child, next_pc))
-                break;
+                return -EIO;
 
         invalidate_cache();
+        return 0;
 }
 
 void user_disable_single_step(struct task_struct *child)
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 144b0f124fc7..7bbe38645ed5 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -28,37 +28,6 @@
 
 #define DEBUG_SIG 0
 
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-int do_signal(struct pt_regs *, sigset_t *);
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
-                  unsigned long r2, unsigned long r3, unsigned long r4,
-                  unsigned long r5, unsigned long r6, struct pt_regs *regs)
-{
-        sigset_t newset;
-
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-
-        if (copy_from_user(&newset, unewset, sizeof(newset)))
-                return -EFAULT;
-        sigdelsetmask(&newset, sigmask(SIGKILL)|sigmask(SIGSTOP));
-
-        spin_lock_irq(&current->sighand->siglock);
-        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        current->state = TASK_INTERRUPTIBLE;
-        schedule();
-        set_thread_flag(TIF_RESTORE_SIGMASK);
-        return -ERESTARTNOHAND;
-}
-
 asmlinkage int
 sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
                 unsigned long r2, unsigned long r3, unsigned long r4,
@@ -218,7 +187,7 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
         return (void __user *)((sp - frame_size) & -8ul);
 }
 
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                            sigset_t *set, struct pt_regs *regs)
 {
         struct rt_sigframe __user *frame;
@@ -275,22 +244,34 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                 current->comm, current->pid, frame, regs->pc);
 #endif
 
-        return;
+        return 0;
 
 give_sigsegv:
         force_sigsegv(sig, current);
+        return -EFAULT;
+}
+
+static int prev_insn(struct pt_regs *regs)
+{
+        u16 inst;
+        if (get_user(&inst, (u16 __user *)(regs->bpc - 2)))
+                return -EFAULT;
+        if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
+                regs->bpc -= 2;
+        else
+                regs->bpc -= 4;
+        regs->syscall_nr = -1;
+        return 0;
 }
 
 /*
  * OK, we're invoking a handler
  */
 
-static void
+static int
 handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
               sigset_t *oldset, struct pt_regs *regs)
 {
-        unsigned short inst;
-
         /* Are we from a system call? */
         if (regs->syscall_nr >= 0) {
                 /* If so, check system call restarting.. */
@@ -308,16 +289,14 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
                         /* fallthrough */
                         case -ERESTARTNOINTR:
                                 regs->r0 = regs->orig_r0;
-                                inst = *(unsigned short *)(regs->bpc - 2);
-                                if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
-                                        regs->bpc -= 2;
-                                else
-                                        regs->bpc -= 4;
+                                if (prev_insn(regs) < 0)
+                                        return -EFAULT;
                 }
         }
 
         /* Set up the stack frame */
-        setup_rt_frame(sig, ka, info, oldset, regs);
+        if (setup_rt_frame(sig, ka, info, oldset, regs))
+                return -EFAULT;
 
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -325,6 +304,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
                 sigaddset(&current->blocked,sig);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+        return 0;
 }
 
 /*
@@ -332,12 +312,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
+static void do_signal(struct pt_regs *regs)
 {
         siginfo_t info;
         int signr;
         struct k_sigaction ka;
-        unsigned short inst;
+        sigset_t *oldset;
 
         /*
          * We want the common case to go fast, which
@@ -346,12 +326,14 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
          * if so.
          */
         if (!user_mode(regs))
-                return 1;
+                return;
 
         if (try_to_freeze()) 
                 goto no_signal;
 
-        if (!oldset)
+        if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                oldset = &current->saved_sigmask;
+        else
                 oldset = &current->blocked;
 
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
@@ -363,8 +345,10 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
                  */
 
                 /* Whee!  Actually deliver the signal.  */
-                handle_signal(signr, &ka, &info, oldset, regs);
-                return 1;
+                if (handle_signal(signr, &ka, &info, oldset, regs) == 0)
+                        clear_thread_flag(TIF_RESTORE_SIGMASK);
+
+                return;
         }
 
  no_signal:
@@ -375,31 +359,24 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
                     regs->r0 == -ERESTARTSYS ||
                     regs->r0 == -ERESTARTNOINTR) {
                         regs->r0 = regs->orig_r0;
-                        inst = *(unsigned short *)(regs->bpc - 2);
-                        if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
-                                regs->bpc -= 2;
-                        else
-                                regs->bpc -= 4;
-                }
-                if (regs->r0 == -ERESTART_RESTARTBLOCK){
+                        prev_insn(regs);
+                } else if (regs->r0 == -ERESTART_RESTARTBLOCK){
                         regs->r0 = regs->orig_r0;
                         regs->r7 = __NR_restart_syscall;
-                        inst = *(unsigned short *)(regs->bpc - 2);
-                        if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
-                                regs->bpc -= 2;
-                        else
-                                regs->bpc -= 4;
+                        prev_insn(regs);
                 }
         }
-        return 0;
+        if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+                clear_thread_flag(TIF_RESTORE_SIGMASK);
+                sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+        }
 }
 
 /*
  * notification of userspace execution resumption
  * - triggered by current->work.notify_resume
  */
-void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
-                      __u32 thread_info_flags)
+void do_notify_resume(struct pt_regs *regs, __u32 thread_info_flags)
 {
         /* Pending single-step? */
         if (thread_info_flags & _TIF_SINGLESTEP)
@@ -407,7 +384,7 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
 
         /* deal with pending signal delivery */
         if (thread_info_flags & _TIF_SIGPENDING)
-                do_signal(regs,oldset);
+                do_signal(regs);
 
         if (thread_info_flags & _TIF_NOTIFY_RESUME) {
                 clear_thread_flag(TIF_NOTIFY_RESUME);
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 60b15d0aa072..b43b36beafe3 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -340,10 +340,13 @@
 #define __NR_set_thread_area    334
 #define __NR_atomic_cmpxchg_32  335
 #define __NR_atomic_barrier     336
+#define __NR_fanotify_init      337
+#define __NR_fanotify_mark      338
+#define __NR_prlimit64          339
 
 #ifdef __KERNEL__
 
-#define NR_syscalls             337
+#define NR_syscalls             340
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 2391bdff0996..6360c437dcf5 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -765,4 +765,7 @@ sys_call_table:
         .long sys_set_thread_area
         .long sys_atomic_cmpxchg_32     /* 335 */
         .long sys_atomic_barrier
+        .long sys_fanotify_init
+        .long sys_fanotify_mark
+        .long sys_prlimit64
 
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index b30b3eb197a5..79b1ed198c07 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -355,6 +355,9 @@ ENTRY(sys_call_table)
         .long sys_set_thread_area
         .long sys_atomic_cmpxchg_32     /* 335 */
         .long sys_atomic_barrier
+        .long sys_fanotify_init
+        .long sys_fanotify_mark
+        .long sys_prlimit64
 
         .rept NR_syscalls-(.-sys_call_table)/4
                 .long sys_ni_syscall
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S
index a91b2713451d..ef332136f96d 100644
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68knommu/kernel/vmlinux.lds.S
@@ -150,6 +150,8 @@ SECTIONS {
                 _sdata = . ;
                 DATA_DATA
                 CACHELINE_ALIGNED_DATA(32)
+                PAGE_ALIGNED_DATA(PAGE_SIZE)
+                *(.data..shared_aligned)
                 INIT_TASK_DATA(THREAD_SIZE)
                 _edata = . ;
         } > DATA
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 613f6912dfc1..dbc51065df5b 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -145,7 +145,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
         return (u32)(unsigned long)uptr;
 }
 
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = (struct pt_regs *)
                 ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 444b9f918fdf..7c2a2f7f8dc1 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -8,7 +8,6 @@ mainmenu "Linux Kernel Configuration"
 config MN10300
         def_bool y
         select HAVE_OPROFILE
-        select HAVE_ARCH_TRACEHOOK
 
 config AM33
         def_bool y
diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug
index ff80e86b9bd2..ce83c74b3fd7 100644
--- a/arch/mn10300/Kconfig.debug
+++ b/arch/mn10300/Kconfig.debug
@@ -101,7 +101,7 @@ config GDBSTUB_DEBUG_BREAKPOINT
 
 choice
         prompt "GDB stub port"
-        default GDBSTUB_TTYSM0
+        default GDBSTUB_ON_TTYSM0
         depends on GDBSTUB
         help
           Select the serial port used for GDB-stub.
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index f49ac49e09ad..3f50e9661076 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -229,9 +229,9 @@ int ffs(int x)
 #include <asm-generic/bitops/hweight.h>
 
 #define ext2_set_bit_atomic(lock, nr, addr) \
-        test_and_set_bit((nr) ^ 0x18, (addr))
+        test_and_set_bit((nr), (addr))
 #define ext2_clear_bit_atomic(lock, nr, addr) \
-        test_and_clear_bit((nr) ^ 0x18, (addr))
+        test_and_clear_bit((nr), (addr))
 
 #include <asm-generic/bitops/ext2-non-atomic.h>
 #include <asm-generic/bitops/minix-le.h>
diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h
index 7e891fce2370..1865d72a86ff 100644
--- a/arch/mn10300/include/asm/signal.h
+++ b/arch/mn10300/include/asm/signal.h
@@ -78,7 +78,7 @@ typedef unsigned long sigset_t;
 
 /* These should not be considered constants from userland.  */
 #define SIGRTMIN        32
-#define SIGRTMAX        (_NSIG-1)
+#define SIGRTMAX        _NSIG
 
 /*
  * SA_FLAGS values:
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index 9d49073e827a..db509dd80565 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -156,17 +156,17 @@ struct mn10300_serial_port mn10300_serial_port_sif0 = {
         ._intr          = &SC0ICR,
         ._rxb           = &SC0RXB,
         ._txb           = &SC0TXB,
-        .rx_name        = "ttySM0/Rx",
-        .tx_name        = "ttySM0/Tx",
+        .rx_name        = "ttySM0:Rx",
+        .tx_name        = "ttySM0:Tx",
 #ifdef CONFIG_MN10300_TTYSM0_TIMER8
-        .tm_name        = "ttySM0/Timer8",
+        .tm_name        = "ttySM0:Timer8",
         ._tmxmd         = &TM8MD,
         ._tmxbr         = &TM8BR,
         ._tmicr         = &TM8ICR,
         .tm_irq         = TM8IRQ,
         .div_timer      = MNSCx_DIV_TIMER_16BIT,
 #else /* CONFIG_MN10300_TTYSM0_TIMER2 */
-        .tm_name        = "ttySM0/Timer2",
+        .tm_name        = "ttySM0:Timer2",
         ._tmxmd         = &TM2MD,
         ._tmxbr         = (volatile u16 *) &TM2BR,
         ._tmicr         = &TM2ICR,
@@ -209,17 +209,17 @@ struct mn10300_serial_port mn10300_serial_port_sif1 = {
         ._intr          = &SC1ICR,
         ._rxb           = &SC1RXB,
         ._txb           = &SC1TXB,
-        .rx_name        = "ttySM1/Rx",
-        .tx_name        = "ttySM1/Tx",
+        .rx_name        = "ttySM1:Rx",
+        .tx_name        = "ttySM1:Tx",
 #ifdef CONFIG_MN10300_TTYSM1_TIMER9
-        .tm_name        = "ttySM1/Timer9",
+        .tm_name        = "ttySM1:Timer9",
         ._tmxmd         = &TM9MD,
         ._tmxbr         = &TM9BR,
         ._tmicr         = &TM9ICR,
         .tm_irq         = TM9IRQ,
         .div_timer      = MNSCx_DIV_TIMER_16BIT,
 #else /* CONFIG_MN10300_TTYSM1_TIMER3 */
-        .tm_name        = "ttySM1/Timer3",
+        .tm_name        = "ttySM1:Timer3",
         ._tmxmd         = &TM3MD,
         ._tmxbr         = (volatile u16 *) &TM3BR,
         ._tmicr         = &TM3ICR,
@@ -260,9 +260,9 @@ struct mn10300_serial_port mn10300_serial_port_sif2 = {
         .uart.lock      =
         __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif2.uart.lock),
         .name           = "ttySM2",
-        .rx_name        = "ttySM2/Rx",
-        .tx_name        = "ttySM2/Tx",
-        .tm_name        = "ttySM2/Timer10",
+        .rx_name        = "ttySM2:Rx",
+        .tx_name        = "ttySM2:Tx",
+        .tm_name        = "ttySM2:Timer10",
         ._iobase        = &SC2CTR,
         ._control       = &SC2CTR,
         ._status        = &SC2STR,
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index 717db14c2cc3..d4de05ab7864 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -65,10 +65,10 @@ asmlinkage long sys_sigaction(int sig,
                 old_sigset_t mask;
                 if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
                     __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
+                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+                    __get_user(mask, &act->sa_mask))
                         return -EFAULT;
-                __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                __get_user(mask, &act->sa_mask);
                 siginitset(&new_ka.sa.sa_mask, mask);
         }
 
@@ -77,10 +77,10 @@ asmlinkage long sys_sigaction(int sig,
         if (!ret && oact) {
                 if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
                     __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
+                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
                         return -EFAULT;
-                __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-                __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
         }
 
         return ret;
@@ -102,6 +102,9 @@ static int restore_sigcontext(struct pt_regs *regs,
 {
         unsigned int err = 0;
 
+        /* Always make any pending restarted system calls return -EINTR */
+        current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
         if (is_using_fpu(current))
                 fpu_kill_state(current);
 
@@ -330,8 +333,6 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
         regs->d0 = sig;
         regs->d1 = (unsigned long) &frame->sc;
 
-        set_fs(USER_DS);
-
         /* the tracer may want to single-step inside the handler */
         if (test_thread_flag(TIF_SINGLESTEP))
                 ptrace_notify(SIGTRAP);
@@ -345,7 +346,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
         return 0;
 
 give_sigsegv:
-        force_sig(SIGSEGV, current);
+        force_sigsegv(sig, current);
         return -EFAULT;
 }
 
@@ -413,8 +414,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         regs->d0 = sig;
         regs->d1 = (long) &frame->info;
 
-        set_fs(USER_DS);
-
         /* the tracer may want to single-step inside the handler */
         if (test_thread_flag(TIF_SINGLESTEP))
                 ptrace_notify(SIGTRAP);
@@ -428,10 +427,16 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         return 0;
 
 give_sigsegv:
-        force_sig(SIGSEGV, current);
+        force_sigsegv(sig, current);
         return -EFAULT;
 }
 
+static inline void stepback(struct pt_regs *regs)
+{
+        regs->pc -= 2;
+        regs->orig_d0 = -1;
+}
+
 /*
  * handle the actual delivery of a signal to userspace
  */
@@ -459,7 +464,7 @@ static int handle_signal(int sig,
                         /* fallthrough */
                 case -ERESTARTNOINTR:
                         regs->d0 = regs->orig_d0;
-                        regs->pc -= 2;
+                        stepback(regs);
                 }
         }
 
@@ -527,12 +532,12 @@ static void do_signal(struct pt_regs *regs)
                 case -ERESTARTSYS:
                 case -ERESTARTNOINTR:
                         regs->d0 = regs->orig_d0;
-                        regs->pc -= 2;
+                        stepback(regs);
                         break;
 
                 case -ERESTART_RESTARTBLOCK:
                         regs->d0 = __NR_restart_syscall;
-                        regs->pc -= 2;
+                        stepback(regs);
                         break;
                 }
         }
diff --git a/arch/mn10300/mm/Makefile b/arch/mn10300/mm/Makefile
index 28b9d983db0c..1557277fbc5c 100644
--- a/arch/mn10300/mm/Makefile
+++ b/arch/mn10300/mm/Makefile
@@ -2,13 +2,11 @@
 # Makefile for the MN10300-specific memory management code
 #
 
+cacheflush-y    := cache.o cache-mn10300.o
+cacheflush-$(CONFIG_MN10300_CACHE_WBACK) += cache-flush-mn10300.o
+
+cacheflush-$(CONFIG_MN10300_CACHE_DISABLED) := cache-disabled.o
+
 obj-y := \
         init.o fault.o pgtable.o extable.o tlb-mn10300.o mmu-context.o \
-        misalignment.o dma-alloc.o
-
-ifneq ($(CONFIG_MN10300_CACHE_DISABLED),y)
-obj-y   += cache.o cache-mn10300.o
-ifeq ($(CONFIG_MN10300_CACHE_WBACK),y)
-obj-y   += cache-flush-mn10300.o
-endif
-endif
+        misalignment.o dma-alloc.o $(cacheflush-y)
diff --git a/arch/mn10300/mm/cache-disabled.c b/arch/mn10300/mm/cache-disabled.c
new file mode 100644
index 000000000000..f669ea42aba6
--- /dev/null
+++ b/arch/mn10300/mm/cache-disabled.c
@@ -0,0 +1,21 @@
+/* Handle the cache being disabled
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/mm.h>
+
+/*
+ * allow userspace to flush the instruction cache
+ */
+asmlinkage long sys_cacheflush(unsigned long start, unsigned long end)
+{
+        if (end < start)
+                return -EINVAL;
+        return 0;
+}
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 02b77baa5da6..efa0b60c63fe 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -147,7 +147,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
         return (u32)(unsigned long)uptr;
 }
 
-static __inline__ void __user *compat_alloc_user_space(long len)
+static __inline__ void __user *arch_compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = &current->thread.regs;
         return (void __user *)regs->gr[30];
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 396d21a80058..a11d4eac4f97 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -134,7 +134,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
         return (u32)(unsigned long)uptr;
 }
 
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = current->thread.regs;
         unsigned long usp = regs->gpr[1];
diff --git a/arch/powerpc/include/asm/fsldma.h b/arch/powerpc/include/asm/fsldma.h
index a67aeed17d40..debc5ed96d6e 100644
--- a/arch/powerpc/include/asm/fsldma.h
+++ b/arch/powerpc/include/asm/fsldma.h
@@ -11,6 +11,7 @@
 #ifndef __ARCH_POWERPC_ASM_FSLDMA_H__
 #define __ARCH_POWERPC_ASM_FSLDMA_H__
 
+#include <linux/slab.h>
 #include <linux/dmaengine.h>
 
 /*
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 4d6681dce816..c571cd3c1453 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -575,13 +575,19 @@ __secondary_start:
         /* Initialize the kernel stack.  Just a repeat for iSeries.      */
         LOAD_REG_ADDR(r3, current_set)
         sldi    r28,r24,3               /* get current_set[cpu#]         */
-        ldx     r1,r3,r28
-        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
-        std     r1,PACAKSAVE(r13)
+        ldx     r14,r3,r28
+        addi    r14,r14,THREAD_SIZE-STACK_FRAME_OVERHEAD
+        std     r14,PACAKSAVE(r13)
 
         /* Do early setup for that CPU (stab, slb, hash table pointer) */
         bl      .early_setup_secondary
 
+        /*
+         * setup the new stack pointer, but *don't* use this until
+         * translation is on.
+         */
+        mr      r1, r14
+
         /* Clear backchain so we get nice backtraces */
         li      r7,0
         mtlr    r7
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 6bbd7a604d24..a7a570dcdd57 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -810,6 +810,9 @@ relocate_new_kernel:
         isync
         sync
 
+        mfspr   r3, SPRN_PIR /* current core we are running on */
+        mr      r4, r5 /* load physical address of chunk called */
+
         /* jump to the entry point, usually the setup routine */
         mtlr    r5
         blrl
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 7109f5b1baa8..2300426e531a 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -138,6 +138,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
                         ti->local_flags &= ~_TLF_RESTORE_SIGMASK;
                         sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
                 }
+                regs->trap = 0;
                 return 0;               /* no signals delivered */
         }
 
@@ -164,6 +165,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
                 ret = handle_rt_signal64(signr, &ka, &info, oldset, regs);
         }
 
+        regs->trap = 0;
         if (ret) {
                 spin_lock_irq(&current->sighand->siglock);
                 sigorsets(&current->blocked, &current->blocked,
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 266610119f66..b96a3a010c26 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -511,6 +511,7 @@ static long restore_user_regs(struct pt_regs *regs,
         if (!sig)
                 save_r2 = (unsigned int)regs->gpr[2];
         err = restore_general_regs(regs, sr);
+        regs->trap = 0;
         err |= __get_user(msr, &sr->mc_gregs[PT_MSR]);
         if (!sig)
                 regs->gpr[2] = (unsigned long) save_r2;
@@ -884,7 +885,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
         regs->nip = (unsigned long) ka->sa.sa_handler;
         /* enter the signal handler in big-endian mode */
         regs->msr &= ~MSR_LE;
-        regs->trap = 0;
         return 1;
 
 badframe:
@@ -1228,7 +1228,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
         regs->nip = (unsigned long) ka->sa.sa_handler;
         /* enter the signal handler in big-endian mode */
         regs->msr &= ~MSR_LE;
-        regs->trap = 0;
 
         return 1;
 
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 2fe6fc64b614..27c4a4584f80 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -178,7 +178,7 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
         err |= __get_user(regs->xer, &sc->gp_regs[PT_XER]);
         err |= __get_user(regs->ccr, &sc->gp_regs[PT_CCR]);
         /* skip SOFTE */
-        err |= __get_user(regs->trap, &sc->gp_regs[PT_TRAP]);
+        regs->trap = 0;
         err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);
         err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);
         err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index ce53dfa7130d..8533b3b83f5d 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -577,20 +577,11 @@ void timer_interrupt(struct pt_regs * regs)
          * some CPUs will continuue to take decrementer exceptions */
         set_dec(DECREMENTER_MAX);
 
-#ifdef CONFIG_PPC32
+#if defined(CONFIG_PPC32) && defined(CONFIG_PMAC)
         if (atomic_read(&ppc_n_lost_interrupts) != 0)
                 do_IRQ(regs);
 #endif
 
-        now = get_tb_or_rtc();
-        if (now < decrementer->next_tb) {
-                /* not time for this event yet */
-                now = decrementer->next_tb - now;
-                if (now <= DECREMENTER_MAX)
-                        set_dec((int)now);
-                trace_timer_interrupt_exit(regs);
-                return;
-        }
         old_regs = set_irq_regs(regs);
         irq_enter();
 
@@ -606,8 +597,16 @@ void timer_interrupt(struct pt_regs * regs)
                 get_lppaca()->int_dword.fields.decr_int = 0;
 #endif
 
-        if (evt->event_handler)
-                evt->event_handler(evt);
+        now = get_tb_or_rtc();
+        if (now >= decrementer->next_tb) {
+                decrementer->next_tb = ~(u64)0;
+                if (evt->event_handler)
+                        evt->event_handler(evt);
+        } else {
+                now = decrementer->next_tb - now;
+                if (now <= DECREMENTER_MAX)
+                        set_dec((int)now);
+        }
 
 #ifdef CONFIG_PPC_ISERIES
         if (firmware_has_feature(FW_FEATURE_ISERIES) && hvlpevent_is_pending())
diff --git a/arch/powerpc/platforms/83xx/mpc837x_mds.c b/arch/powerpc/platforms/83xx/mpc837x_mds.c
index f9751c8905be..83068322abd1 100644
--- a/arch/powerpc/platforms/83xx/mpc837x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc837x_mds.c
@@ -48,8 +48,10 @@ static int mpc837xmds_usb_cfg(void)
                 return -1;
 
         np = of_find_node_by_name(NULL, "usb");
-        if (!np)
-                return -ENODEV;
+        if (!np) {
+                ret = -ENODEV;
+                goto out;
+        }
         phy_type = of_get_property(np, "phy_type", NULL);
         if (phy_type && !strcmp(phy_type, "ulpi")) {
                 clrbits8(bcsr_regs + 12, BCSR12_USB_SER_PIN);
@@ -65,8 +67,9 @@ static int mpc837xmds_usb_cfg(void)
         }
 
         of_node_put(np);
+out:
         iounmap(bcsr_regs);
-        return 0;
+        return ret;
 }
 
 /* ************************************************************************
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index da64be19d099..aa34cac4eb5c 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -357,6 +357,7 @@ static void __init mpc85xx_mds_setup_arch(void)
 {
 #ifdef CONFIG_PCI
         struct pci_controller *hose;
+        struct device_node *np;
 #endif
         dma_addr_t max = 0xffffffff;
 
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index e1467c937450..34e00902ce86 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -19,7 +19,7 @@
 
 #include <linux/pci.h>
 #include <linux/of_platform.h>
-#include <linux/lmb.h>
+#include <linux/memblock.h>
 
 #include <asm/mpic.h>
 #include <asm/swiotlb.h>
@@ -97,7 +97,7 @@ static void __init p1022_ds_setup_arch(void)
 #endif
 
 #ifdef CONFIG_SWIOTLB
-        if (lmb_end_of_DRAM() > max) {
+        if (memblock_end_of_DRAM() > max) {
                 ppc_swiotlb_enable = 1;
                 set_pci_dma_ops(&swiotlb_dma_ops);
                 ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 227c1c3d585e..72d8054fa739 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -129,20 +129,35 @@ struct device_node *dlpar_configure_connector(u32 drc_index)
         struct property *property;
         struct property *last_property = NULL;
         struct cc_workarea *ccwa;
+        char *data_buf;
         int cc_token;
-        int rc;
+        int rc = -1;
 
         cc_token = rtas_token("ibm,configure-connector");
         if (cc_token == RTAS_UNKNOWN_SERVICE)
                 return NULL;
 
-        spin_lock(&rtas_data_buf_lock);
-        ccwa = (struct cc_workarea *)&rtas_data_buf[0];
+        data_buf = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL);
+        if (!data_buf)
+                return NULL;
+
+        ccwa = (struct cc_workarea *)&data_buf[0];
         ccwa->drc_index = drc_index;
         ccwa->zero = 0;
 
-        rc = rtas_call(cc_token, 2, 1, NULL, rtas_data_buf, NULL);
-        while (rc) {
+        do {
+                /* Since we release the rtas_data_buf lock between configure
+                 * connector calls we want to re-populate the rtas_data_buffer
+                 * with the contents of the previous call.
+                 */
+                spin_lock(&rtas_data_buf_lock);
+
+                memcpy(rtas_data_buf, data_buf, RTAS_DATA_BUF_SIZE);
+                rc = rtas_call(cc_token, 2, 1, NULL, rtas_data_buf, NULL);
+                memcpy(data_buf, rtas_data_buf, RTAS_DATA_BUF_SIZE);
+
+                spin_unlock(&rtas_data_buf_lock);
+
                 switch (rc) {
                 case NEXT_SIBLING:
                         dn = dlpar_parse_cc_node(ccwa);
@@ -197,18 +212,19 @@ struct device_node *dlpar_configure_connector(u32 drc_index)
                                "returned from configure-connector\n", rc);
                         goto cc_error;
                 }
+        } while (rc);
 
-                rc = rtas_call(cc_token, 2, 1, NULL, rtas_data_buf, NULL);
+cc_error:
+        kfree(data_buf);
+
+        if (rc) {
+                if (first_dn)
+                        dlpar_free_cc_nodes(first_dn);
+
+                return NULL;
         }
 
-        spin_unlock(&rtas_data_buf_lock);
         return first_dn;
-
-cc_error:
-        if (first_dn)
-                dlpar_free_cc_nodes(first_dn);
-        spin_unlock(&rtas_data_buf_lock);
-        return NULL;
 }
 
 static struct device_node *derive_parent(const char *path)
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 209384b6e039..4ae933225251 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -399,6 +399,8 @@ DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1013E, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1013, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1020E, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1020, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1021E, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1021, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1022E, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P1022, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_P2010E, quirk_fsl_pcie_header);
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 6425abe5b7db..3017532319c8 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -240,12 +240,13 @@ struct rio_priv {
 
 static void __iomem *rio_regs_win;
 
+#ifdef CONFIG_E500
 static int (*saved_mcheck_exception)(struct pt_regs *regs);
 
 static int fsl_rio_mcheck_exception(struct pt_regs *regs)
 {
         const struct exception_table_entry *entry = NULL;
-        unsigned long reason = (mfspr(SPRN_MCSR) & MCSR_MASK);
+        unsigned long reason = mfspr(SPRN_MCSR);
 
         if (reason & MCSR_BUS_RBERR) {
                 reason = in_be32((u32 *)(rio_regs_win + RIO_LTLEDCSR));
@@ -269,6 +270,7 @@ static int fsl_rio_mcheck_exception(struct pt_regs *regs)
         else
                 return cur_cpu_spec->machine_check(regs);
 }
+#endif
 
 /**
  * fsl_rio_doorbell_send - Send a MPC85xx doorbell message
@@ -1517,8 +1519,10 @@ int fsl_rio_setup(struct platform_device *dev)
         fsl_rio_doorbell_init(port);
         fsl_rio_port_write_init(port);
 
+#ifdef CONFIG_E500
         saved_mcheck_exception = ppc_md.machine_check_exception;
         ppc_md.machine_check_exception = fsl_rio_mcheck_exception;
+#endif
         /* Ensure that RFXE is set */
         mtspr(SPRN_HID1, (mfspr(SPRN_HID1) | 0x20000));
 
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index 3da8014931c9..90020de4dcf2 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -640,6 +640,7 @@ unsigned int qe_get_num_of_snums(void)
                 if ((num_of_snums < 28) || (num_of_snums > QE_NUM_OF_SNUM)) {
                         /* No QE ever has fewer than 28 SNUMs */
                         pr_err("QE: number of snum is invalid\n");
+                        of_node_put(qe);
                         return -EINVAL;
                 }
         }
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 104f2007f097..a875c2f542e1 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -181,7 +181,7 @@ static inline int is_compat_task(void)
 
 #endif
 
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
 {
         unsigned long stack;
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 5016f76ea98a..6f57325bb883 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -167,7 +167,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
         return (u32)(unsigned long)uptr;
 }
 
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = current_thread_info()->kregs;
         unsigned long usp = regs->u_regs[UREG_I6];
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 357ced3c33ff..6318e622cfb0 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1038,6 +1038,7 @@ static int __hw_perf_event_init(struct perf_event *event)
         if (atomic_read(&nmi_active) < 0)
                 return -ENODEV;
 
+        pmap = NULL;
         if (attr->type == PERF_TYPE_HARDWARE) {
                 if (attr->config >= sparc_pmu->max_events)
                         return -EINVAL;
@@ -1046,9 +1047,18 @@ static int __hw_perf_event_init(struct perf_event *event)
                 pmap = sparc_map_cache_event(attr->config);
                 if (IS_ERR(pmap))
                         return PTR_ERR(pmap);
-        } else
+        } else if (attr->type != PERF_TYPE_RAW)
                 return -EOPNOTSUPP;
 
+        if (pmap) {
+                hwc->event_base = perf_event_encode(pmap);
+        } else {
+                /* User gives us "(encoding << 16) | pic_mask" for
+                 * PERF_TYPE_RAW events.
+                 */
+                hwc->event_base = attr->config;
+        }
+
         /* We save the enable bits in the config_base.  */
         hwc->config_base = sparc_pmu->irq_bit;
         if (!attr->exclude_user)
@@ -1058,8 +1068,6 @@ static int __hw_perf_event_init(struct perf_event *event)
         if (!attr->exclude_hv)
                 hwc->config_base |= sparc_pmu->hv_bit;
 
-        hwc->event_base = perf_event_encode(pmap);
-
         n = 0;
         if (event->group_leader != event) {
                 n = collect_events(event->group_leader,
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index ea22cd373c64..75fad425e249 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -453,8 +453,66 @@ static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
         return err;
 }
 
-static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
-                          int signo, sigset_t *oldset)
+/* The I-cache flush instruction only works in the primary ASI, which
+ * right now is the nucleus, aka. kernel space.
+ *
+ * Therefore we have to kick the instructions out using the kernel
+ * side linear mapping of the physical address backing the user
+ * instructions.
+ */
+static void flush_signal_insns(unsigned long address)
+{
+        unsigned long pstate, paddr;
+        pte_t *ptep, pte;
+        pgd_t *pgdp;
+        pud_t *pudp;
+        pmd_t *pmdp;
+
+        /* Commit all stores of the instructions we are about to flush.  */
+        wmb();
+
+        /* Disable cross-call reception.  In this way even a very wide
+         * munmap() on another cpu can't tear down the page table
+         * hierarchy from underneath us, since that can't complete
+         * until the IPI tlb flush returns.
+         */
+
+        __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
+        __asm__ __volatile__("wrpr %0, %1, %%pstate"
+                                : : "r" (pstate), "i" (PSTATE_IE));
+
+        pgdp = pgd_offset(current->mm, address);
+        if (pgd_none(*pgdp))
+                goto out_irqs_on;
+        pudp = pud_offset(pgdp, address);
+        if (pud_none(*pudp))
+                goto out_irqs_on;
+        pmdp = pmd_offset(pudp, address);
+        if (pmd_none(*pmdp))
+                goto out_irqs_on;
+
+        ptep = pte_offset_map(pmdp, address);
+        pte = *ptep;
+        if (!pte_present(pte))
+                goto out_unmap;
+
+        paddr = (unsigned long) page_address(pte_page(pte));
+
+        __asm__ __volatile__("flush     %0 + %1"
+                             : /* no outputs */
+                             : "r" (paddr),
+                               "r" (address & (PAGE_SIZE - 1))
+                             : "memory");
+
+out_unmap:
+        pte_unmap(ptep);
+out_irqs_on:
+        __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
+
+}
+
+static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+                         int signo, sigset_t *oldset)
 {
         struct signal_frame32 __user *sf;
         int sigframe_size;
@@ -547,13 +605,7 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
         if (ka->ka_restorer) {
                 regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
         } else {
-                /* Flush instruction space. */
                 unsigned long address = ((unsigned long)&(sf->insns[0]));
-                pgd_t *pgdp = pgd_offset(current->mm, address);
-                pud_t *pudp = pud_offset(pgdp, address);
-                pmd_t *pmdp = pmd_offset(pudp, address);
-                pte_t *ptep;
-                pte_t pte;
 
                 regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
         
@@ -562,34 +614,22 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
                 if (err)
                         goto sigsegv;
 
-                preempt_disable();
-                ptep = pte_offset_map(pmdp, address);
-                pte = *ptep;
-                if (pte_present(pte)) {
-                        unsigned long page = (unsigned long)
-                                page_address(pte_page(pte));
-
-                        wmb();
-                        __asm__ __volatile__("flush     %0 + %1"
-                                             : /* no outputs */
-                                             : "r" (page),
-                                               "r" (address & (PAGE_SIZE - 1))
-                                             : "memory");
-                }
-                pte_unmap(ptep);
-                preempt_enable();
+                flush_signal_insns(address);
         }
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
-                             unsigned long signr, sigset_t *oldset,
-                             siginfo_t *info)
+static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+                            unsigned long signr, sigset_t *oldset,
+                            siginfo_t *info)
 {
         struct rt_signal_frame32 __user *sf;
         int sigframe_size;
@@ -687,12 +727,7 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
         if (ka->ka_restorer)
                 regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
         else {
-                /* Flush instruction space. */
                 unsigned long address = ((unsigned long)&(sf->insns[0]));
-                pgd_t *pgdp = pgd_offset(current->mm, address);
-                pud_t *pudp = pud_offset(pgdp, address);
-                pmd_t *pmdp = pmd_offset(pudp, address);
-                pte_t *ptep;
 
                 regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
         
@@ -704,38 +739,32 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
                 if (err)
                         goto sigsegv;
 
-                preempt_disable();
-                ptep = pte_offset_map(pmdp, address);
-                if (pte_present(*ptep)) {
-                        unsigned long page = (unsigned long)
-                                page_address(pte_page(*ptep));
-
-                        wmb();
-                        __asm__ __volatile__("flush     %0 + %1"
-                                             : /* no outputs */
-                                             : "r" (page),
-                                               "r" (address & (PAGE_SIZE - 1))
-                                             : "memory");
-                }
-                pte_unmap(ptep);
-                preempt_enable();
+                flush_signal_insns(address);
         }
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signr, current);
+        return -EFAULT;
 }
 
-static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
-                                   siginfo_t *info,
-                                   sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka,
+                                  siginfo_t *info,
+                                  sigset_t *oldset, struct pt_regs *regs)
 {
+        int err;
+
         if (ka->sa.sa_flags & SA_SIGINFO)
-                setup_rt_frame32(ka, regs, signr, oldset, info);
+                err = setup_rt_frame32(ka, regs, signr, oldset, info);
         else
-                setup_frame32(ka, regs, signr, oldset);
+                err = setup_frame32(ka, regs, signr, oldset);
+
+        if (err)
+                return err;
 
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -743,6 +772,10 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
                 sigaddset(&current->blocked,signr);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+
+        tracehook_signal_handler(signr, info, ka, regs, 0);
+
+        return 0;
 }
 
 static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
@@ -789,16 +822,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart32(orig_i0, regs, &ka.sa);
-                handle_signal32(signr, &ka, &info, oldset, regs);
-
-                /* A signal was successfully delivered; the saved
-                 * sigmask will have been stored in the signal frame,
-                 * and will be restored by sigreturn, so we can simply
-                 * clear the TS_RESTORE_SIGMASK flag.
-                 */
-                current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
-                tracehook_signal_handler(signr, &info, &ka, regs, 0);
+                if (handle_signal32(signr, &ka, &info, oldset, regs) == 0) {
+                        /* A signal was successfully delivered; the saved
+                         * sigmask will have been stored in the signal frame,
+                         * and will be restored by sigreturn, so we can simply
+                         * clear the TS_RESTORE_SIGMASK flag.
+                         */
+                        current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+                }
                 return;
         }
         if (restart_syscall &&
@@ -809,12 +840,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
                 regs->u_regs[UREG_I0] = orig_i0;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
         if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
 
         /* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 9882df92ba0a..5e5c5fd03783 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -315,8 +315,8 @@ save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
         return err;
 }
 
-static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
-                        int signo, sigset_t *oldset)
+static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
+                       int signo, sigset_t *oldset)
 {
         struct signal_frame __user *sf;
         int sigframe_size, err;
@@ -384,16 +384,19 @@ static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
                 /* Flush instruction space. */
                 flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
         }
-        return;
+        return 0;
 
 sigill_and_return:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
-                           int signo, sigset_t *oldset, siginfo_t *info)
+static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
+                          int signo, sigset_t *oldset, siginfo_t *info)
 {
         struct rt_signal_frame __user *sf;
         int sigframe_size;
@@ -466,22 +469,30 @@ static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
                 /* Flush instruction space. */
                 flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
         }
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static inline void
+static inline int
 handle_signal(unsigned long signr, struct k_sigaction *ka,
               siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
 {
+        int err;
+
         if (ka->sa.sa_flags & SA_SIGINFO)
-                setup_rt_frame(ka, regs, signr, oldset, info);
+                err = setup_rt_frame(ka, regs, signr, oldset, info);
         else
-                setup_frame(ka, regs, signr, oldset);
+                err = setup_frame(ka, regs, signr, oldset);
+
+        if (err)
+                return err;
 
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -489,6 +500,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka,
                 sigaddset(&current->blocked, signr);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+
+        tracehook_signal_handler(signr, info, ka, regs, 0);
+
+        return 0;
 }
 
 static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -546,17 +561,15 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart(orig_i0, regs, &ka.sa);
-                handle_signal(signr, &ka, &info, oldset, regs);
-
-                /* a signal was successfully delivered; the saved
-                 * sigmask will have been stored in the signal frame,
-                 * and will be restored by sigreturn, so we can simply
-                 * clear the TIF_RESTORE_SIGMASK flag.
-                 */
-                if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                        clear_thread_flag(TIF_RESTORE_SIGMASK);
-
-                tracehook_signal_handler(signr, &info, &ka, regs, 0);
+                if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+                        /* a signal was successfully delivered; the saved
+                         * sigmask will have been stored in the signal frame,
+                         * and will be restored by sigreturn, so we can simply
+                         * clear the TIF_RESTORE_SIGMASK flag.
+                         */
+                        if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                                clear_thread_flag(TIF_RESTORE_SIGMASK);
+                }
                 return;
         }
         if (restart_syscall &&
@@ -567,12 +580,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
                 regs->u_regs[UREG_I0] = orig_i0;
                 regs->pc -= 4;
                 regs->npc -= 4;
+                pt_regs_clear_syscall(regs);
         }
         if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->pc -= 4;
                 regs->npc -= 4;
+                pt_regs_clear_syscall(regs);
         }
 
         /* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 9fa48c30037e..006fe4515886 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -409,7 +409,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *
         return (void __user *) sp;
 }
 
-static inline void
+static inline int
 setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
                int signo, sigset_t *oldset, siginfo_t *info)
 {
@@ -483,26 +483,37 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
         }
         /* 4. return to kernel instructions */
         regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
-                                 siginfo_t *info,
-                                 sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal(unsigned long signr, struct k_sigaction *ka,
+                                siginfo_t *info,
+                                sigset_t *oldset, struct pt_regs *regs)
 {
-        setup_rt_frame(ka, regs, signr, oldset,
-                       (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+        int err;
+
+        err = setup_rt_frame(ka, regs, signr, oldset,
+                             (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+        if (err)
+                return err;
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
         if (!(ka->sa.sa_flags & SA_NOMASK))
                 sigaddset(&current->blocked,signr);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+
+        tracehook_signal_handler(signr, info, ka, regs, 0);
+
+        return 0;
 }
 
 static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -571,16 +582,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart(orig_i0, regs, &ka.sa);
-                handle_signal(signr, &ka, &info, oldset, regs);
-
-                /* A signal was successfully delivered; the saved
-                 * sigmask will have been stored in the signal frame,
-                 * and will be restored by sigreturn, so we can simply
-                 * clear the TS_RESTORE_SIGMASK flag.
-                 */
-                current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
-                tracehook_signal_handler(signr, &info, &ka, regs, 0);
+                if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+                        /* A signal was successfully delivered; the saved
+                         * sigmask will have been stored in the signal frame,
+                         * and will be restored by sigreturn, so we can simply
+                         * clear the TS_RESTORE_SIGMASK flag.
+                         */
+                        current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+                }
                 return;
         }
         if (restart_syscall &&
@@ -591,12 +600,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
                 regs->u_regs[UREG_I0] = orig_i0;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
         if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
 
         /* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 50794137d710..675c9e11ada5 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -166,7 +166,6 @@ sparc_breakpoint (struct pt_regs *regs)
 {
         siginfo_t info;
 
-        lock_kernel();
 #ifdef DEBUG_SPARC_BREAKPOINT
         printk ("TRAP: Entering kernel PC=%x, nPC=%x\n", regs->pc, regs->npc);
 #endif
@@ -180,7 +179,6 @@ sparc_breakpoint (struct pt_regs *regs)
 #ifdef DEBUG_SPARC_BREAKPOINT
         printk ("TRAP: Returning to space: PC=%x nPC=%x\n", regs->pc, regs->npc);
 #endif
-        unlock_kernel();
 }
 
 asmlinkage int
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index f8514e291e15..12b9f352595f 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -323,7 +323,6 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 {
         enum direction dir;
 
-        lock_kernel();
         if(!(current->thread.flags & SPARC_FLAG_UNALIGNED) ||
            (((insn >> 30) & 3) != 3))
                 goto kill_user;
@@ -377,5 +376,5 @@ asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 kill_user:
         user_mna_trap_fault(regs, insn);
 out:
-        unlock_kernel();
+        ;
 }
diff --git a/arch/sparc/kernel/windows.c b/arch/sparc/kernel/windows.c
index f24d298bda29..b351770cbdd6 100644
--- a/arch/sparc/kernel/windows.c
+++ b/arch/sparc/kernel/windows.c
@@ -112,7 +112,6 @@ void try_to_clear_window_buffer(struct pt_regs *regs, int who)
         struct thread_info *tp = current_thread_info();
         int window;
 
-        lock_kernel();
         flush_user_windows();
         for(window = 0; window < tp->w_saved; window++) {
                 unsigned long sp = tp->rwbuf_stkptrs[window];
@@ -123,5 +122,4 @@ void try_to_clear_window_buffer(struct pt_regs *regs, int who)
                         do_exit(SIGILL);
         }
         tp->w_saved = 0;
-        unlock_kernel();
 }
diff --git a/arch/tile/include/arch/chip_tile64.h b/arch/tile/include/arch/chip_tile64.h
index 1246573be59e..261aaba092d4 100644
--- a/arch/tile/include/arch/chip_tile64.h
+++ b/arch/tile/include/arch/chip_tile64.h
@@ -150,6 +150,9 @@
 /** Is the PROC_STATUS SPR supported? */
 #define CHIP_HAS_PROC_STATUS_SPR() 0
 
+/** Is the DSTREAM_PF SPR supported? */
+#define CHIP_HAS_DSTREAM_PF() 0
+
 /** Log of the number of mshims we have. */
 #define CHIP_LOG_NUM_MSHIMS() 2
 
diff --git a/arch/tile/include/arch/chip_tilepro.h b/arch/tile/include/arch/chip_tilepro.h
index e864c47fc89c..70017699a74c 100644
--- a/arch/tile/include/arch/chip_tilepro.h
+++ b/arch/tile/include/arch/chip_tilepro.h
@@ -150,6 +150,9 @@
 /** Is the PROC_STATUS SPR supported? */
 #define CHIP_HAS_PROC_STATUS_SPR() 1
 
+/** Is the DSTREAM_PF SPR supported? */
+#define CHIP_HAS_DSTREAM_PF() 0
+
 /** Log of the number of mshims we have. */
 #define CHIP_LOG_NUM_MSHIMS() 2
 
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 5a34da6cdd79..8b60ec8b2d19 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -195,7 +195,7 @@ static inline unsigned long ptr_to_compat_reg(void __user *uptr)
         return (long)(int)(long __force)uptr;
 }
 
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = task_pt_regs(current);
         return (void __user *)regs->sp - len;
@@ -214,8 +214,9 @@ extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
 struct compat_sigaction;
 struct compat_siginfo;
 struct compat_sigaltstack;
-long compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
-                       compat_uptr_t __user *envp);
+long compat_sys_execve(const char __user *path,
+                       const compat_uptr_t __user *argv,
+                       const compat_uptr_t __user *envp);
 long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
                              struct compat_sigaction __user *oact,
                              size_t sigsetsize);
diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
index 8c95bef3fa45..ee43328713ab 100644
--- a/arch/tile/include/asm/io.h
+++ b/arch/tile/include/asm/io.h
@@ -164,22 +164,22 @@ static inline void _tile_writeq(u64 val, unsigned long addr)
 #define iowrite32 writel
 #define iowrite64 writeq
 
-static inline void *memcpy_fromio(void *dst, void *src, int len)
+static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,
+                                 size_t len)
 {
         int x;
         BUG_ON((unsigned long)src & 0x3);
         for (x = 0; x < len; x += 4)
                 *(u32 *)(dst + x) = readl(src + x);
-        return dst;
 }
 
-static inline void *memcpy_toio(void *dst, void *src, int len)
+static inline void memcpy_toio(volatile void __iomem *dst, const void *src,
+                                size_t len)
 {
         int x;
         BUG_ON((unsigned long)dst & 0x3);
         for (x = 0; x < len; x += 4)
                 writel(*(u32 *)(src + x), dst + x);
-        return dst;
 }
 
 /*
diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h
index d942d09b252e..ccd5f8425688 100644
--- a/arch/tile/include/asm/processor.h
+++ b/arch/tile/include/asm/processor.h
@@ -103,6 +103,18 @@ struct thread_struct {
         /* Any other miscellaneous processor state bits */
         unsigned long proc_status;
 #endif
+#if !CHIP_HAS_FIXED_INTVEC_BASE()
+        /* Interrupt base for PL0 interrupts */
+        unsigned long interrupt_vector_base;
+#endif
+#if CHIP_HAS_TILE_RTF_HWM()
+        /* Tile cache retry fifo high-water mark */
+        unsigned long tile_rtf_hwm;
+#endif
+#if CHIP_HAS_DSTREAM_PF()
+        /* Data stream prefetch control */
+        unsigned long dstream_pf;
+#endif
 #ifdef CONFIG_HARDWALL
         /* Is this task tied to an activated hardwall? */
         struct hardwall_info *hardwall;
diff --git a/arch/tile/include/asm/ptrace.h b/arch/tile/include/asm/ptrace.h
index acdae814e016..4a02bb073979 100644
--- a/arch/tile/include/asm/ptrace.h
+++ b/arch/tile/include/asm/ptrace.h
@@ -51,10 +51,7 @@ typedef uint_reg_t pt_reg_t;
 
 /*
  * This struct defines the way the registers are stored on the stack during a
- * system call/exception.  It should be a multiple of 8 bytes to preserve
- * normal stack alignment rules.
- *
- * Must track <sys/ucontext.h> and <sys/procfs.h>
+ * system call or exception.  "struct sigcontext" has the same shape.
  */
 struct pt_regs {
         /* Saved main processor registers; 56..63 are special. */
@@ -80,11 +77,6 @@ struct pt_regs {
 
 #endif /* __ASSEMBLY__ */
 
-/* Flag bits in pt_regs.flags */
-#define PT_FLAGS_DISABLE_IRQ    1  /* on return to kernel, disable irqs */
-#define PT_FLAGS_CALLER_SAVES   2  /* caller-save registers are valid */
-#define PT_FLAGS_RESTORE_REGS   4  /* restore callee-save regs on return */
-
 #define PTRACE_GETREGS          12
 #define PTRACE_SETREGS          13
 #define PTRACE_GETFPREGS        14
@@ -101,6 +93,11 @@ struct pt_regs {
 
 #ifdef __KERNEL__
 
+/* Flag bits in pt_regs.flags */
+#define PT_FLAGS_DISABLE_IRQ    1  /* on return to kernel, disable irqs */
+#define PT_FLAGS_CALLER_SAVES   2  /* caller-save registers are valid */
+#define PT_FLAGS_RESTORE_REGS   4  /* restore callee-save regs on return */
+
 #ifndef __ASSEMBLY__
 
 #define instruction_pointer(regs) ((regs)->pc)
diff --git a/arch/tile/include/asm/sigcontext.h b/arch/tile/include/asm/sigcontext.h
index 7cd7672e3ad4..5e2d03336f53 100644
--- a/arch/tile/include/asm/sigcontext.h
+++ b/arch/tile/include/asm/sigcontext.h
@@ -15,13 +15,21 @@
 #ifndef _ASM_TILE_SIGCONTEXT_H
 #define _ASM_TILE_SIGCONTEXT_H
 
-/* NOTE: we can't include <linux/ptrace.h> due to #include dependencies. */
-#include <asm/ptrace.h>
-
-/* Must track <sys/ucontext.h> */
+#include <arch/abi.h>
 
+/*
+ * struct sigcontext has the same shape as struct pt_regs,
+ * but is simplified since we know the fault is from userspace.
+ */
 struct sigcontext {
-        struct pt_regs regs;
+        uint_reg_t gregs[53];   /* General-purpose registers.  */
+        uint_reg_t tp;          /* Aliases gregs[TREG_TP].  */
+        uint_reg_t sp;          /* Aliases gregs[TREG_SP].  */
+        uint_reg_t lr;          /* Aliases gregs[TREG_LR].  */
+        uint_reg_t pc;          /* Program counter.  */
+        uint_reg_t ics;         /* In Interrupt Critical Section?  */
+        uint_reg_t faultnum;    /* Fault number.  */
+        uint_reg_t pad[5];
 };
 
 #endif /* _ASM_TILE_SIGCONTEXT_H */
diff --git a/arch/tile/include/asm/signal.h b/arch/tile/include/asm/signal.h
index eb0253f32202..c1ee1d61d44c 100644
--- a/arch/tile/include/asm/signal.h
+++ b/arch/tile/include/asm/signal.h
@@ -24,6 +24,7 @@
 #include <asm-generic/signal.h>
 
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+struct pt_regs;
 int restore_sigcontext(struct pt_regs *, struct sigcontext __user *, long *);
 int setup_sigcontext(struct sigcontext __user *, struct pt_regs *);
 void do_signal(struct pt_regs *regs);
diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h
index af165a74537f..ce99ffefeacf 100644
--- a/arch/tile/include/asm/syscalls.h
+++ b/arch/tile/include/asm/syscalls.h
@@ -62,10 +62,12 @@ long sys_fork(void);
 long _sys_fork(struct pt_regs *regs);
 long sys_vfork(void);
 long _sys_vfork(struct pt_regs *regs);
-long sys_execve(char __user *filename, char __user * __user *argv,
-                char __user * __user *envp);
-long _sys_execve(char __user *filename, char __user * __user *argv,
-                 char __user * __user *envp, struct pt_regs *regs);
+long sys_execve(const char __user *filename,
+                const char __user *const __user *argv,
+                const char __user *const __user *envp);
+long _sys_execve(const char __user *filename,
+                 const char __user *const __user *argv,
+                 const char __user *const __user *envp, struct pt_regs *regs);
 
 /* kernel/signal.c */
 long sys_sigaltstack(const stack_t __user *, stack_t __user *);
@@ -86,10 +88,13 @@ int _sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *);
 #endif
 
 #ifdef CONFIG_COMPAT
-long compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
-                       compat_uptr_t __user *envp);
-long _compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
-                        compat_uptr_t __user *envp, struct pt_regs *regs);
+long compat_sys_execve(const char __user *path,
+                       const compat_uptr_t __user *argv,
+                       const compat_uptr_t __user *envp);
+long _compat_sys_execve(const char __user *path,
+                        const compat_uptr_t __user *argv,
+                        const compat_uptr_t __user *envp,
+                        struct pt_regs *regs);
 long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
                             struct compat_sigaltstack __user *uoss_ptr);
 long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index 84f296ca9e63..8f58bdff20d7 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -1506,13 +1506,6 @@ handle_ill:
         }
         STD_ENDPROC(handle_ill)
 
-        .pushsection .rodata, "a"
-        .align  8
-bpt_code:
-        bpt
-        ENDPROC(bpt_code)
-        .popsection
-
 /* Various stub interrupt handlers and syscall handlers */
 
 STD_ENTRY_LOCAL(_kernel_double_fault)
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 985cc28c74c5..84c29111756c 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -408,6 +408,15 @@ static void save_arch_state(struct thread_struct *t)
 #if CHIP_HAS_PROC_STATUS_SPR()
         t->proc_status = __insn_mfspr(SPR_PROC_STATUS);
 #endif
+#if !CHIP_HAS_FIXED_INTVEC_BASE()
+        t->interrupt_vector_base = __insn_mfspr(SPR_INTERRUPT_VECTOR_BASE_0);
+#endif
+#if CHIP_HAS_TILE_RTF_HWM()
+        t->tile_rtf_hwm = __insn_mfspr(SPR_TILE_RTF_HWM);
+#endif
+#if CHIP_HAS_DSTREAM_PF()
+        t->dstream_pf = __insn_mfspr(SPR_DSTREAM_PF);
+#endif
 }
 
 static void restore_arch_state(const struct thread_struct *t)
@@ -428,14 +437,14 @@ static void restore_arch_state(const struct thread_struct *t)
 #if CHIP_HAS_PROC_STATUS_SPR()
         __insn_mtspr(SPR_PROC_STATUS, t->proc_status);
 #endif
+#if !CHIP_HAS_FIXED_INTVEC_BASE()
+        __insn_mtspr(SPR_INTERRUPT_VECTOR_BASE_0, t->interrupt_vector_base);
+#endif
 #if CHIP_HAS_TILE_RTF_HWM()
-        /*
-         * Clear this whenever we switch back to a process in case
-         * the previous process was monkeying with it.  Even if enabled
-         * in CBOX_MSR1 via TILE_RTF_HWM_MIN, it's still just a
-         * performance hint, so isn't worth a full save/restore.
-         */
-        __insn_mtspr(SPR_TILE_RTF_HWM, 0);
+        __insn_mtspr(SPR_TILE_RTF_HWM, t->tile_rtf_hwm);
+#endif
+#if CHIP_HAS_DSTREAM_PF()
+        __insn_mtspr(SPR_DSTREAM_PF, t->dstream_pf);
 #endif
 }
 
@@ -561,8 +570,9 @@ out:
 }
 
 #ifdef CONFIG_COMPAT
-long _compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
-                        compat_uptr_t __user *envp, struct pt_regs *regs)
+long _compat_sys_execve(const char __user *path,
+                        const compat_uptr_t __user *argv,
+                        const compat_uptr_t __user *envp, struct pt_regs *regs)
 {
         long error;
         char *filename;
@@ -657,7 +667,7 @@ void show_regs(struct pt_regs *regs)
                regs->regs[51], regs->regs[52], regs->tp);
         pr_err(" sp : "REGFMT" lr : "REGFMT"\n", regs->sp, regs->lr);
 #else
-        for (i = 0; i < 52; i += 3)
+        for (i = 0; i < 52; i += 4)
                 pr_err(" r%-2d: "REGFMT" r%-2d: "REGFMT
                        " r%-2d: "REGFMT" r%-2d: "REGFMT"\n",
                        i, regs->regs[i], i+1, regs->regs[i+1],
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 45b66a3c991f..ce183aa1492c 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -61,13 +61,19 @@ int restore_sigcontext(struct pt_regs *regs,
         /* Always make any pending restarted system calls return -EINTR */
         current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
+        /*
+         * Enforce that sigcontext is like pt_regs, and doesn't mess
+         * up our stack alignment rules.
+         */
+        BUILD_BUG_ON(sizeof(struct sigcontext) != sizeof(struct pt_regs));
+        BUILD_BUG_ON(sizeof(struct sigcontext) % 8 != 0);
+
         for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i)
-                err |= __get_user(((long *)regs)[i],
-                                  &((long __user *)(&sc->regs))[i]);
+                err |= __get_user(regs->regs[i], &sc->gregs[i]);
 
         regs->faultnum = INT_SWINT_1_SIGRETURN;
 
-        err |= __get_user(*pr0, &sc->regs.regs[0]);
+        err |= __get_user(*pr0, &sc->gregs[0]);
         return err;
 }
 
@@ -112,8 +118,7 @@ int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
         int i, err = 0;
 
         for (i = 0; i < sizeof(struct pt_regs)/sizeof(long); ++i)
-                err |= __put_user(((long *)regs)[i],
-                                  &((long __user *)(&sc->regs))[i]);
+                err |= __put_user(regs->regs[i], &sc->gregs[i]);
 
         return err;
 }
@@ -203,19 +208,17 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
          * Set up registers for signal handler.
          * Registers that we don't modify keep the value they had from
          * user-space at the time we took the signal.
+         * We always pass siginfo and mcontext, regardless of SA_SIGINFO,
+         * since some things rely on this (e.g. glibc's debug/segfault.c).
          */
         regs->pc = (unsigned long) ka->sa.sa_handler;
         regs->ex1 = PL_ICS_EX1(USER_PL, 1); /* set crit sec in handler */
         regs->sp = (unsigned long) frame;
         regs->lr = restorer;
         regs->regs[0] = (unsigned long) usig;
-
-        if (ka->sa.sa_flags & SA_SIGINFO) {
-                /* Need extra arguments, so mark to restore caller-saves. */
-                regs->regs[1] = (unsigned long) &frame->info;
-                regs->regs[2] = (unsigned long) &frame->uc;
-                regs->flags |= PT_FLAGS_CALLER_SAVES;
-        }
+        regs->regs[1] = (unsigned long) &frame->info;
+        regs->regs[2] = (unsigned long) &frame->uc;
+        regs->flags |= PT_FLAGS_CALLER_SAVES;
 
         /*
          * Notify any tracer that was single-stepping it.
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index 38a68b0b4581..ea2e0ce28380 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -175,7 +175,7 @@ static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt)
                         pr_err("  <received signal %d>\n",
                                frame->info.si_signo);
                 }
-                return &frame->uc.uc_mcontext.regs;
+                return (struct pt_regs *)&frame->uc.uc_mcontext;
         }
         return NULL;
 }
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index cd145eda3579..49b5e1eb3262 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -62,7 +62,7 @@ static long execve1(const char *file,
         return error;
 }
 
-long um_execve(const char *file, char __user *__user *argv, char __user *__user *env)
+long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
 {
         long err;
 
@@ -72,8 +72,8 @@ long um_execve(const char *file, char __user *__user *argv, char __user *__user
         return err;
 }
 
-long sys_execve(const char __user *file, char __user *__user *argv,
-                char __user *__user *env)
+long sys_execve(const char __user *file, const char __user *const __user *argv,
+                const char __user *const __user *env)
 {
         long error;
         char *filename;
diff --git a/arch/um/kernel/internal.h b/arch/um/kernel/internal.h
index 1303a105fe91..5bf97db24a04 100644
--- a/arch/um/kernel/internal.h
+++ b/arch/um/kernel/internal.h
@@ -1 +1 @@
-extern long um_execve(const char *file, char __user *__user *argv, char __user *__user *env);
+extern long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env);
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index 5ddb246626db..f958cb876ee3 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -60,8 +60,8 @@ int kernel_execve(const char *filename,
 
         fs = get_fs();
         set_fs(KERNEL_DS);
-        ret = um_execve(filename, (char __user *__user *)argv,
-                        (char __user *__user *) envp);
+        ret = um_execve(filename, (const char __user *const __user *)argv,
+                        (const char __user *const __user *) envp);
         set_fs(fs);
 
         return ret;
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 8aa1b59b9074..e8c8881351b3 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -74,7 +74,7 @@ endif
 
 ifdef CONFIG_CC_STACKPROTECTOR
         cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
-        ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(biarch)),y)
+        ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) $(biarch)),y)
                 stackp-y := -fstack-protector
                 KBUILD_CFLAGS += $(stackp-y)
         else
diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 030f4b93e255..5df2869c874b 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -58,7 +58,19 @@ static void parse_earlyprintk(void)
                 if (arg[pos] == ',')
                         pos++;
 
-                if (!strncmp(arg, "ttyS", 4)) {
+                /*
+                 * make sure we have
+                 *      "serial,0x3f8,115200"
+                 *      "serial,ttyS0,115200"
+                 *      "ttyS0,115200"
+                 */
+                if (pos == 7 && !strncmp(arg + pos, "0x", 2)) {
+                        port = simple_strtoull(arg + pos, &e, 16);
+                        if (port == 0 || arg + pos == e)
+                                port = DEFAULT_SERIAL_PORT;
+                        else
+                                pos = e - arg;
+                } else if (!strncmp(arg + pos, "ttyS", 4)) {
                         static const int bases[] = { 0x3f8, 0x2f8 };
                         int idx = 0;
 
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index b86feabed69b..518bb99c3394 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -50,7 +50,12 @@
         /*
          * Reload arg registers from stack in case ptrace changed them.
          * We don't reload %eax because syscall_trace_enter() returned
-         * the value it wants us to use in the table lookup.
+         * the %rax value we should see.  Instead, we just truncate that
+         * value to 32 bits again as we did on entry from user mode.
+         * If it's a new value set by user_regset during entry tracing,
+         * this matches the normal truncation of the user-mode value.
+         * If it's -1 to make us punt the syscall, then (u32)-1 is still
+         * an appropriately invalid value.
          */
         .macro LOAD_ARGS32 offset, _r9=0
         .if \_r9
@@ -60,6 +65,7 @@
         movl \offset+48(%rsp),%edx
         movl \offset+56(%rsp),%esi
         movl \offset+64(%rsp),%edi
+        movl %eax,%eax                  /* zero extension */
         .endm
         
         .macro CFI_STARTPROC32 simple
@@ -153,7 +159,7 @@ ENTRY(ia32_sysenter_target)
         testl  $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
         CFI_REMEMBER_STATE
         jnz  sysenter_tracesys
-        cmpl    $(IA32_NR_syscalls-1),%eax
+        cmpq    $(IA32_NR_syscalls-1),%rax
         ja      ia32_badsys
 sysenter_do_call:
         IA32_ARG_FIXUP
@@ -195,7 +201,7 @@ sysexit_from_sys_call:
         movl $AUDIT_ARCH_I386,%edi      /* 1st arg: audit arch */
         call audit_syscall_entry
         movl RAX-ARGOFFSET(%rsp),%eax   /* reload syscall number */
-        cmpl $(IA32_NR_syscalls-1),%eax
+        cmpq $(IA32_NR_syscalls-1),%rax
         ja ia32_badsys
         movl %ebx,%edi                  /* reload 1st syscall arg */
         movl RCX-ARGOFFSET(%rsp),%esi   /* reload 2nd syscall arg */
@@ -248,7 +254,7 @@ sysenter_tracesys:
         call    syscall_trace_enter
         LOAD_ARGS32 ARGOFFSET  /* reload args from stack in case ptrace changed it */
         RESTORE_REST
-        cmpl    $(IA32_NR_syscalls-1),%eax
+        cmpq    $(IA32_NR_syscalls-1),%rax
         ja      int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
         jmp     sysenter_do_call
         CFI_ENDPROC
@@ -314,7 +320,7 @@ ENTRY(ia32_cstar_target)
         testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
         CFI_REMEMBER_STATE
         jnz   cstar_tracesys
-        cmpl $IA32_NR_syscalls-1,%eax
+        cmpq $IA32_NR_syscalls-1,%rax
         ja  ia32_badsys
 cstar_do_call:
         IA32_ARG_FIXUP 1
@@ -367,7 +373,7 @@ cstar_tracesys:
         LOAD_ARGS32 ARGOFFSET, 1  /* reload args from stack in case ptrace changed it */
         RESTORE_REST
         xchgl %ebp,%r9d
-        cmpl $(IA32_NR_syscalls-1),%eax
+        cmpq $(IA32_NR_syscalls-1),%rax
         ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
         jmp cstar_do_call
 END(ia32_cstar_target)
@@ -425,7 +431,7 @@ ENTRY(ia32_syscall)
         orl   $TS_COMPAT,TI_status(%r10)
         testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
         jnz ia32_tracesys
-        cmpl $(IA32_NR_syscalls-1),%eax
+        cmpq $(IA32_NR_syscalls-1),%rax
         ja ia32_badsys
 ia32_do_call:
         IA32_ARG_FIXUP
@@ -444,7 +450,7 @@ ia32_tracesys:
         call syscall_trace_enter
         LOAD_ARGS32 ARGOFFSET  /* reload args from stack in case ptrace changed it */
         RESTORE_REST
-        cmpl $(IA32_NR_syscalls-1),%eax
+        cmpq $(IA32_NR_syscalls-1),%rax
         ja  int_ret_from_sys_call       /* ia32_tracesys has set RAX(%rsp) */
         jmp ia32_do_call
 END(ia32_syscall)
diff --git a/arch/x86/include/asm/amd_iommu_proto.h b/arch/x86/include/asm/amd_iommu_proto.h
index d2544f1d705d..cb030374b90a 100644
--- a/arch/x86/include/asm/amd_iommu_proto.h
+++ b/arch/x86/include/asm/amd_iommu_proto.h
@@ -38,4 +38,10 @@ static inline void amd_iommu_stats_init(void) { }
 
 #endif /* !CONFIG_AMD_IOMMU_STATS */
 
+static inline bool is_rd890_iommu(struct pci_dev *pdev)
+{
+        return (pdev->vendor == PCI_VENDOR_ID_ATI) &&
+               (pdev->device == PCI_DEVICE_ID_RD890_IOMMU);
+}
+
 #endif /* _ASM_X86_AMD_IOMMU_PROTO_H  */
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index 7014e88bc779..08616180deaf 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -368,6 +368,9 @@ struct amd_iommu {
         /* capabilities of that IOMMU read from ACPI */
         u32 cap;
 
+        /* flags read from acpi table */
+        u8 acpi_flags;
+
         /*
          * Capability pointer. There could be more than one IOMMU per PCI
          * device function if there are more than one AMD IOMMU capability
@@ -411,6 +414,15 @@ struct amd_iommu {
 
         /* default dma_ops domain for that IOMMU */
         struct dma_ops_domain *default_dom;
+
+        /*
+         * This array is required to work around a potential BIOS bug.
+         * The BIOS may miss to restore parts of the PCI configuration
+         * space when the system resumes from S3. The result is that the
+         * IOMMU does not execute commands anymore which leads to system
+         * failure.
+         */
+        u32 cache_cfg[4];
 };
 
 /*
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 545776efeb16..bafd80defa43 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -309,7 +309,7 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
 static __always_inline int constant_test_bit(unsigned int nr, const volatile unsigned long *addr)
 {
         return ((1UL << (nr % BITS_PER_LONG)) &
-                (((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
+                (addr[nr / BITS_PER_LONG])) != 0;
 }
 
 static inline int variable_test_bit(int nr, volatile const unsigned long *addr)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 306160e58b48..1d9cd27c2920 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -205,7 +205,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
         return (u32)(unsigned long)uptr;
 }
 
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = task_pt_regs(current);
         return (void __user *)regs->sp - len;
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 781a50b29a49..3f76523589af 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -168,6 +168,7 @@
 #define X86_FEATURE_XSAVEOPT    (7*32+ 4) /* Optimized Xsave */
 #define X86_FEATURE_PLN         (7*32+ 5) /* Intel Power Limit Notification */
 #define X86_FEATURE_PTS         (7*32+ 6) /* Intel Package Thermal Status */
+#define X86_FEATURE_DTS         (7*32+ 7) /* Digital Thermal Sensor */
 
 /* Virtualization flags: Linux defined, word 8 */
 #define X86_FEATURE_TPR_SHADOW  (8*32+ 0) /* Intel TPR Shadow */
@@ -296,6 +297,7 @@ extern const char * const x86_power_flags[32];
 
 #endif /* CONFIG_X86_64 */
 
+#if __GNUC__ >= 4
 /*
  * Static testing of CPU features.  Used the same as boot_cpu_has().
  * These are only valid after alternatives have run, but will statically
@@ -304,7 +306,7 @@ extern const char * const x86_power_flags[32];
  */
 static __always_inline __pure bool __static_cpu_has(u16 bit)
 {
-#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
+#if __GNUC__ > 4 || __GNUC_MINOR__ >= 5
                 asm goto("1: jmp %l[t_no]\n"
                          "2:\n"
                          ".section .altinstructions,\"a\"\n"
@@ -345,7 +347,6 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
 #endif
 }
 
-#if __GNUC__ >= 4
 #define static_cpu_has(bit)                                     \
 (                                                               \
         __builtin_constant_p(boot_cpu_has(bit)) ?               \
diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index 004e6e25e913..1d5c08a1bdfd 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -68,7 +68,6 @@ extern unsigned long force_hpet_address;
 extern u8 hpet_blockid;
 extern int hpet_force_user;
 extern u8 hpet_msi_disable;
-extern u8 hpet_readback_cmp;
 extern int is_hpet_enabled(void);
 extern int hpet_enable(void);
 extern void hpet_disable(void);
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 528a11e8d3e3..824ca07860d0 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -20,7 +20,7 @@ struct arch_hw_breakpoint {
 #include <linux/list.h>
 
 /* Available HW breakpoint length encodings */
-#define X86_BREAKPOINT_LEN_X            0x00
+#define X86_BREAKPOINT_LEN_X            0x40
 #define X86_BREAKPOINT_LEN_1            0x40
 #define X86_BREAKPOINT_LEN_2            0x44
 #define X86_BREAKPOINT_LEN_4            0x4c
diff --git a/arch/x86/include/asm/iomap.h b/arch/x86/include/asm/iomap.h
index f35eb45d6576..c4191b3b7056 100644
--- a/arch/x86/include/asm/iomap.h
+++ b/arch/x86/include/asm/iomap.h
@@ -26,11 +26,11 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
-void *
+void __iomem *
 iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
 
 void
-iounmap_atomic(void *kvaddr, enum km_type type);
+iounmap_atomic(void __iomem *kvaddr, enum km_type type);
 
 int
 iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 51cfd730ac5d..1f99ecfc48e1 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -152,9 +152,14 @@ struct x86_emulate_ops {
 struct operand {
         enum { OP_REG, OP_MEM, OP_IMM, OP_NONE } type;
         unsigned int bytes;
-        unsigned long orig_val, *ptr;
+        union {
+                unsigned long orig_val;
+                u64 orig_val64;
+        };
+        unsigned long *ptr;
         union {
                 unsigned long val;
+                u64 val64;
                 char valptr[sizeof(unsigned long) + 2];
         };
 };
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 404a880ea325..d395540ff894 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -27,6 +27,9 @@ extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
                                             int node);
 extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
 
+#ifdef CONFIG_PCI
+
+#ifdef CONFIG_PCI_DOMAINS
 static inline int pci_domain_nr(struct pci_bus *bus)
 {
         struct pci_sysdata *sd = bus->sysdata;
@@ -37,13 +40,12 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 {
         return pci_domain_nr(bus);
 }
-
+#endif
 
 /* Can be used to override the logic in pci_scan_bus for skipping
    already-configured bus numbers - to be used for buggy BIOSes
    or architectures with incomplete PCI setup by the loader */
 
-#ifdef CONFIG_PCI
 extern unsigned int pcibios_assign_all_busses(void);
 extern int pci_legacy_init(void);
 # ifdef CONFIG_ACPI
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 0925676266bd..fedf32a8c3ec 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -11,6 +11,8 @@ ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_tsc.o = -pg
 CFLAGS_REMOVE_rtc.o = -pg
 CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
+CFLAGS_REMOVE_pvclock.o = -pg
+CFLAGS_REMOVE_kvmclock.o = -pg
 CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_early_printk.o = -pg
 endif
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index fa044e1e30a2..679b6450382b 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1953,6 +1953,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
                            size_t size,
                            int dir)
 {
+        dma_addr_t flush_addr;
         dma_addr_t i, start;
         unsigned int pages;
 
@@ -1960,6 +1961,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
             (dma_addr + size > dma_dom->aperture_size))
                 return;
 
+        flush_addr = dma_addr;
         pages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
         dma_addr &= PAGE_MASK;
         start = dma_addr;
@@ -1974,7 +1976,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
         dma_ops_free_addresses(dma_dom, dma_addr, pages);
 
         if (amd_iommu_unmap_flush || dma_dom->need_flush) {
-                iommu_flush_pages(&dma_dom->domain, dma_addr, size);
+                iommu_flush_pages(&dma_dom->domain, flush_addr, size);
                 dma_dom->need_flush = false;
         }
 }
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 3cc63e2b8dd4..5a170cbbbed8 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -632,6 +632,13 @@ static void __init init_iommu_from_pci(struct amd_iommu *iommu)
         iommu->last_device = calc_devid(MMIO_GET_BUS(range),
                                         MMIO_GET_LD(range));
         iommu->evt_msi_num = MMIO_MSI_NUM(misc);
+
+        if (is_rd890_iommu(iommu->dev)) {
+                pci_read_config_dword(iommu->dev, 0xf0, &iommu->cache_cfg[0]);
+                pci_read_config_dword(iommu->dev, 0xf4, &iommu->cache_cfg[1]);
+                pci_read_config_dword(iommu->dev, 0xf8, &iommu->cache_cfg[2]);
+                pci_read_config_dword(iommu->dev, 0xfc, &iommu->cache_cfg[3]);
+        }
 }
 
 /*
@@ -649,29 +656,9 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
         struct ivhd_entry *e;
 
         /*
-         * First set the recommended feature enable bits from ACPI
-         * into the IOMMU control registers
+         * First save the recommended feature enable bits from ACPI
          */
-        h->flags & IVHD_FLAG_HT_TUN_EN_MASK ?
-                iommu_feature_enable(iommu, CONTROL_HT_TUN_EN) :
-                iommu_feature_disable(iommu, CONTROL_HT_TUN_EN);
-
-        h->flags & IVHD_FLAG_PASSPW_EN_MASK ?
-                iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
-                iommu_feature_disable(iommu, CONTROL_PASSPW_EN);
-
-        h->flags & IVHD_FLAG_RESPASSPW_EN_MASK ?
-                iommu_feature_enable(iommu, CONTROL_RESPASSPW_EN) :
-                iommu_feature_disable(iommu, CONTROL_RESPASSPW_EN);
-
-        h->flags & IVHD_FLAG_ISOC_EN_MASK ?
-                iommu_feature_enable(iommu, CONTROL_ISOC_EN) :
-                iommu_feature_disable(iommu, CONTROL_ISOC_EN);
-
-        /*
-         * make IOMMU memory accesses cache coherent
-         */
-        iommu_feature_enable(iommu, CONTROL_COHERENT_EN);
+        iommu->acpi_flags = h->flags;
 
         /*
          * Done. Now parse the device entries
@@ -1116,6 +1103,40 @@ static void init_device_table(void)
         }
 }
 
+static void iommu_init_flags(struct amd_iommu *iommu)
+{
+        iommu->acpi_flags & IVHD_FLAG_HT_TUN_EN_MASK ?
+                iommu_feature_enable(iommu, CONTROL_HT_TUN_EN) :
+                iommu_feature_disable(iommu, CONTROL_HT_TUN_EN);
+
+        iommu->acpi_flags & IVHD_FLAG_PASSPW_EN_MASK ?
+                iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
+                iommu_feature_disable(iommu, CONTROL_PASSPW_EN);
+
+        iommu->acpi_flags & IVHD_FLAG_RESPASSPW_EN_MASK ?
+                iommu_feature_enable(iommu, CONTROL_RESPASSPW_EN) :
+                iommu_feature_disable(iommu, CONTROL_RESPASSPW_EN);
+
+        iommu->acpi_flags & IVHD_FLAG_ISOC_EN_MASK ?
+                iommu_feature_enable(iommu, CONTROL_ISOC_EN) :
+                iommu_feature_disable(iommu, CONTROL_ISOC_EN);
+
+        /*
+         * make IOMMU memory accesses cache coherent
+         */
+        iommu_feature_enable(iommu, CONTROL_COHERENT_EN);
+}
+
+static void iommu_apply_quirks(struct amd_iommu *iommu)
+{
+        if (is_rd890_iommu(iommu->dev)) {
+                pci_write_config_dword(iommu->dev, 0xf0, iommu->cache_cfg[0]);
+                pci_write_config_dword(iommu->dev, 0xf4, iommu->cache_cfg[1]);
+                pci_write_config_dword(iommu->dev, 0xf8, iommu->cache_cfg[2]);
+                pci_write_config_dword(iommu->dev, 0xfc, iommu->cache_cfg[3]);
+        }
+}
+
 /*
  * This function finally enables all IOMMUs found in the system after
  * they have been initialized
@@ -1126,6 +1147,8 @@ static void enable_iommus(void)
 
         for_each_iommu(iommu) {
                 iommu_disable(iommu);
+                iommu_apply_quirks(iommu);
+                iommu_init_flags(iommu);
                 iommu_set_device_table(iommu);
                 iommu_enable_command_buffer(iommu);
                 iommu_enable_event_buffer(iommu);
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 7b598b84c902..f744f54cb248 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -698,9 +698,11 @@ void __init uv_system_init(void)
                 for (j = 0; j < 64; j++) {
                         if (!test_bit(j, &present))
                                 continue;
-                        uv_blade_info[blade].pnode = (i * 64 + j);
+                        pnode = (i * 64 + j);
+                        uv_blade_info[blade].pnode = pnode;
                         uv_blade_info[blade].nr_possible_cpus = 0;
                         uv_blade_info[blade].nr_online_cpus = 0;
+                        max_pnode = max(pnode, max_pnode);
                         blade++;
                 }
         }
@@ -738,7 +740,6 @@ void __init uv_system_init(void)
                 uv_cpu_hub_info(cpu)->scir.offset = uv_scir_offset(apicid);
                 uv_node_to_blade[nid] = blade;
                 uv_cpu_to_blade[cpu] = blade;
-                max_pnode = max(pnode, max_pnode);
         }
 
         /* Add blade/pnode info for nodes without cpus */
@@ -750,7 +751,6 @@ void __init uv_system_init(void)
                 pnode = (paddr >> m_val) & pnode_mask;
                 blade = boot_pnode_to_blade(pnode);
                 uv_node_to_blade[nid] = blade;
-                max_pnode = max(pnode, max_pnode);
         }
 
         map_gru_high(max_pnode);
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 224392d8fe8c..5e975298fa81 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -530,7 +530,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
                 err = -ENOMEM;
                 goto out;
         }
-        if (!alloc_cpumask_var(&b->cpus, GFP_KERNEL)) {
+        if (!zalloc_cpumask_var(&b->cpus, GFP_KERNEL)) {
                 kfree(b);
                 err = -ENOMEM;
                 goto out;
@@ -543,7 +543,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 #ifndef CONFIG_SMP
         cpumask_setall(b->cpus);
 #else
-        cpumask_copy(b->cpus, c->llc_shared_map);
+        cpumask_set_cpu(cpu, b->cpus);
 #endif
 
         per_cpu(threshold_banks, cpu)[bank] = b;
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index c2a8b26d4fea..d9368eeda309 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -202,10 +202,11 @@ static int therm_throt_process(bool new_event, int event, int level)
 
 #ifdef CONFIG_SYSFS
 /* Add/Remove thermal_throttle interface for CPU device: */
-static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev)
+static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev,
+                                unsigned int cpu)
 {
         int err;
-        struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         err = sysfs_create_group(&sys_dev->kobj, &thermal_attr_group);
         if (err)
@@ -251,7 +252,7 @@ thermal_throttle_cpu_callback(struct notifier_block *nfb,
         case CPU_UP_PREPARE:
         case CPU_UP_PREPARE_FROZEN:
                 mutex_lock(&therm_cpu_lock);
-                err = thermal_throttle_add_dev(sys_dev);
+                err = thermal_throttle_add_dev(sys_dev, cpu);
                 mutex_unlock(&therm_cpu_lock);
                 WARN_ON(err);
                 break;
@@ -287,7 +288,7 @@ static __init int thermal_throttle_init_device(void)
 #endif
         /* connect live CPUs to sysfs */
         for_each_online_cpu(cpu) {
-                err = thermal_throttle_add_dev(get_cpu_sysdev(cpu));
+                err = thermal_throttle_add_dev(get_cpu_sysdev(cpu), cpu);
                 WARN_ON(err);
         }
 #ifdef CONFIG_HOTPLUG_CPU
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index f2da20fda02d..03a5b0385ad6 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -102,6 +102,7 @@ struct cpu_hw_events {
          */
         struct perf_event       *events[X86_PMC_IDX_MAX]; /* in counter order */
         unsigned long           active_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+        unsigned long           running[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
         int                     enabled;
 
         int                     n_events;
@@ -1010,6 +1011,7 @@ static int x86_pmu_start(struct perf_event *event)
         x86_perf_event_set_period(event);
         cpuc->events[idx] = event;
         __set_bit(idx, cpuc->active_mask);
+        __set_bit(idx, cpuc->running);
         x86_pmu.enable(event);
         perf_event_update_userpage(event);
 
@@ -1141,8 +1143,16 @@ static int x86_pmu_handle_irq(struct pt_regs *regs)
         cpuc = &__get_cpu_var(cpu_hw_events);
 
         for (idx = 0; idx < x86_pmu.num_counters; idx++) {
-                if (!test_bit(idx, cpuc->active_mask))
+                if (!test_bit(idx, cpuc->active_mask)) {
+                        /*
+                         * Though we deactivated the counter some cpus
+                         * might still deliver spurious interrupts still
+                         * in flight. Catch them:
+                         */
+                        if (__test_and_clear_bit(idx, cpuc->running))
+                                handled++;
                         continue;
+                }
 
                 event = cpuc->events[idx];
                 hwc = &event->hw;
@@ -1154,7 +1164,7 @@ static int x86_pmu_handle_irq(struct pt_regs *regs)
                 /*
                  * event overflow
                  */
-                handled         = 1;
+                handled++;
                 data.period     = event->hw.last_period;
 
                 if (!x86_perf_event_set_period(event))
@@ -1200,12 +1210,20 @@ void perf_events_lapic_init(void)
         apic_write(APIC_LVTPC, APIC_DM_NMI);
 }
 
+struct pmu_nmi_state {
+        unsigned int    marked;
+        int             handled;
+};
+
+static DEFINE_PER_CPU(struct pmu_nmi_state, pmu_nmi);
+
 static int __kprobes
 perf_event_nmi_handler(struct notifier_block *self,
                          unsigned long cmd, void *__args)
 {
         struct die_args *args = __args;
-        struct pt_regs *regs;
+        unsigned int this_nmi;
+        int handled;
 
         if (!atomic_read(&active_events))
                 return NOTIFY_DONE;
@@ -1214,22 +1232,47 @@ perf_event_nmi_handler(struct notifier_block *self,
         case DIE_NMI:
         case DIE_NMI_IPI:
                 break;
-
+        case DIE_NMIUNKNOWN:
+                this_nmi = percpu_read(irq_stat.__nmi_count);
+                if (this_nmi != __get_cpu_var(pmu_nmi).marked)
+                        /* let the kernel handle the unknown nmi */
+                        return NOTIFY_DONE;
+                /*
+                 * This one is a PMU back-to-back nmi. Two events
+                 * trigger 'simultaneously' raising two back-to-back
+                 * NMIs. If the first NMI handles both, the latter
+                 * will be empty and daze the CPU. So, we drop it to
+                 * avoid false-positive 'unknown nmi' messages.
+                 */
+                return NOTIFY_STOP;
         default:
                 return NOTIFY_DONE;
         }
 
-        regs = args->regs;
-
         apic_write(APIC_LVTPC, APIC_DM_NMI);
-        /*
-         * Can't rely on the handled return value to say it was our NMI, two
-         * events could trigger 'simultaneously' raising two back-to-back NMIs.
-         *
-         * If the first NMI handles both, the latter will be empty and daze
-         * the CPU.
-         */
-        x86_pmu.handle_irq(regs);
+
+        handled = x86_pmu.handle_irq(args->regs);
+        if (!handled)
+                return NOTIFY_DONE;
+
+        this_nmi = percpu_read(irq_stat.__nmi_count);
+        if ((handled > 1) ||
+                /* the next nmi could be a back-to-back nmi */
+            ((__get_cpu_var(pmu_nmi).marked == this_nmi) &&
+             (__get_cpu_var(pmu_nmi).handled > 1))) {
+                /*
+                 * We could have two subsequent back-to-back nmis: The
+                 * first handles more than one counter, the 2nd
+                 * handles only one counter and the 3rd handles no
+                 * counter.
+                 *
+                 * This is the 2nd nmi because the previous was
+                 * handling more than one counter. We will mark the
+                 * next (3rd) and then drop it if unhandled.
+                 */
+                __get_cpu_var(pmu_nmi).marked   = this_nmi + 1;
+                __get_cpu_var(pmu_nmi).handled  = handled;
+        }
 
         return NOTIFY_STOP;
 }
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index d8d86d014008..ee05c90012d2 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -712,7 +712,8 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
         struct perf_sample_data data;
         struct cpu_hw_events *cpuc;
         int bit, loops;
-        u64 ack, status;
+        u64 status;
+        int handled = 0;
 
         perf_sample_data_init(&data, 0);
 
@@ -728,6 +729,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
 
         loops = 0;
 again:
+        intel_pmu_ack_status(status);
         if (++loops > 100) {
                 WARN_ONCE(1, "perfevents: irq loop stuck!\n");
                 perf_event_print_debug();
@@ -736,19 +738,22 @@ again:
         }
 
         inc_irq_stat(apic_perf_irqs);
-        ack = status;
 
         intel_pmu_lbr_read();
 
         /*
          * PEBS overflow sets bit 62 in the global status register
          */
-        if (__test_and_clear_bit(62, (unsigned long *)&status))
+        if (__test_and_clear_bit(62, (unsigned long *)&status)) {
+                handled++;
                 x86_pmu.drain_pebs(regs);
+        }
 
         for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
                 struct perf_event *event = cpuc->events[bit];
 
+                handled++;
+
                 if (!test_bit(bit, cpuc->active_mask))
                         continue;
 
@@ -761,8 +766,6 @@ again:
                         x86_pmu_stop(event);
         }
 
-        intel_pmu_ack_status(ack);
-
         /*
          * Repeat if there is more work to be done:
          */
@@ -772,7 +775,7 @@ again:
 
 done:
         intel_pmu_enable_all(0);
-        return 1;
+        return handled;
 }
 
 static struct event_constraint *
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index 7e578e9cc58b..b560db3305be 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -692,7 +692,7 @@ static int p4_pmu_handle_irq(struct pt_regs *regs)
                 inc_irq_stat(apic_perf_irqs);
         }
 
-        return handled > 0;
+        return handled;
 }
 
 /*
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 34b4dad6f0b8..d49079515122 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -31,6 +31,7 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
         const struct cpuid_bit *cb;
 
         static const struct cpuid_bit __cpuinitconst cpuid_bits[] = {
+                { X86_FEATURE_DTS,              CR_EAX, 0, 0x00000006, 0 },
                 { X86_FEATURE_IDA,              CR_EAX, 1, 0x00000006, 0 },
                 { X86_FEATURE_ARAT,             CR_EAX, 2, 0x00000006, 0 },
                 { X86_FEATURE_PLN,              CR_EAX, 4, 0x00000006, 0 },
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index e5cc7e82e60d..ebdb85cf2686 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -18,7 +18,6 @@
 #include <asm/apic.h>
 #include <asm/iommu.h>
 #include <asm/gart.h>
-#include <asm/hpet.h>
 
 static void __init fix_hypertransport_config(int num, int slot, int func)
 {
@@ -192,21 +191,6 @@ static void __init ati_bugs_contd(int num, int slot, int func)
 }
 #endif
 
-/*
- * Force the read back of the CMP register in hpet_next_event()
- * to work around the problem that the CMP register write seems to be
- * delayed. See hpet_next_event() for details.
- *
- * We do this on all SMBUS incarnations for now until we have more
- * information about the affected chipsets.
- */
-static void __init ati_hpet_bugs(int num, int slot, int func)
-{
-#ifdef CONFIG_HPET_TIMER
-        hpet_readback_cmp = 1;
-#endif
-}
-
 #define QFLAG_APPLY_ONCE        0x1
 #define QFLAG_APPLIED           0x2
 #define QFLAG_DONE              (QFLAG_APPLY_ONCE|QFLAG_APPLIED)
@@ -236,8 +220,6 @@ static struct chipset early_qrk[] __initdata = {
           PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs },
         { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
           PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd },
-        { PCI_VENDOR_ID_ATI, PCI_ANY_ID,
-          PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_hpet_bugs },
         {}
 };
 
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 351f9c0fea1f..410fdb3f1939 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -35,7 +35,6 @@
 unsigned long                           hpet_address;
 u8                                      hpet_blockid; /* OS timer block num */
 u8                                      hpet_msi_disable;
-u8                                      hpet_readback_cmp;
 
 #ifdef CONFIG_PCI_MSI
 static unsigned long                    hpet_num_timers;
@@ -395,23 +394,27 @@ static int hpet_next_event(unsigned long delta,
          * at that point and we would wait for the next hpet interrupt
          * forever. We found out that reading the CMP register back
          * forces the transfer so we can rely on the comparison with
-         * the counter register below.
+         * the counter register below. If the read back from the
+         * compare register does not match the value we programmed
+         * then we might have a real hardware problem. We can not do
+         * much about it here, but at least alert the user/admin with
+         * a prominent warning.
          *
-         * That works fine on those ATI chipsets, but on newer Intel
-         * chipsets (ICH9...) this triggers due to an erratum: Reading
-         * the comparator immediately following a write is returning
-         * the old value.
+         * An erratum on some chipsets (ICH9,..), results in
+         * comparator read immediately following a write returning old
+         * value. Workaround for this is to read this value second
+         * time, when first read returns old value.
          *
-         * We restrict the read back to the affected ATI chipsets (set
-         * by quirks) and also run it with hpet=verbose for debugging
-         * purposes.
+         * In fact the write to the comparator register is delayed up
+         * to two HPET cycles so the workaround we tried to restrict
+         * the readback to those known to be borked ATI chipsets
+         * failed miserably. So we give up on optimizations forever
+         * and penalize all HPET incarnations unconditionally.
          */
-        if (hpet_readback_cmp || hpet_verbose) {
-                u32 cmp = hpet_readl(HPET_Tn_CMP(timer));
-
-                if (cmp != cnt)
+        if (unlikely((u32)hpet_readl(HPET_Tn_CMP(timer)) != cnt)) {
+                if (hpet_readl(HPET_Tn_CMP(timer)) != cnt)
                         printk_once(KERN_WARNING
-                            "hpet: compare register read back failed.\n");
+                                "hpet: compare register read back failed.\n");
         }
 
         return (s32)(hpet_readl(HPET_COUNTER) - cnt) >= 0 ? -ETIME : 0;
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index a474ec37c32f..ff15c9dcc25d 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -206,11 +206,27 @@ int arch_check_bp_in_kernelspace(struct perf_event *bp)
 int arch_bp_generic_fields(int x86_len, int x86_type,
                            int *gen_len, int *gen_type)
 {
-        /* Len */
-        switch (x86_len) {
-        case X86_BREAKPOINT_LEN_X:
+        /* Type */
+        switch (x86_type) {
+        case X86_BREAKPOINT_EXECUTE:
+                if (x86_len != X86_BREAKPOINT_LEN_X)
+                        return -EINVAL;
+
+                *gen_type = HW_BREAKPOINT_X;
                 *gen_len = sizeof(long);
+                return 0;
+        case X86_BREAKPOINT_WRITE:
+                *gen_type = HW_BREAKPOINT_W;
                 break;
+        case X86_BREAKPOINT_RW:
+                *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* Len */
+        switch (x86_len) {
         case X86_BREAKPOINT_LEN_1:
                 *gen_len = HW_BREAKPOINT_LEN_1;
                 break;
@@ -229,21 +245,6 @@ int arch_bp_generic_fields(int x86_len, int x86_type,
                 return -EINVAL;
         }
 
-        /* Type */
-        switch (x86_type) {
-        case X86_BREAKPOINT_EXECUTE:
-                *gen_type = HW_BREAKPOINT_X;
-                break;
-        case X86_BREAKPOINT_WRITE:
-                *gen_type = HW_BREAKPOINT_W;
-                break;
-        case X86_BREAKPOINT_RW:
-                *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
-                break;
-        default:
-                return -EINVAL;
-        }
-
         return 0;
 }
 
@@ -316,9 +317,6 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
         ret = -EINVAL;
 
         switch (info->len) {
-        case X86_BREAKPOINT_LEN_X:
-                align = sizeof(long) -1;
-                break;
         case X86_BREAKPOINT_LEN_1:
                 align = 0;
                 break;
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index a874495b3673..e2a595257390 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -45,8 +45,7 @@ void __init setup_trampoline_page_table(void)
         /* Copy kernel address range */
         clone_pgd_range(trampoline_pg_dir + KERNEL_PGD_BOUNDARY,
                         swapper_pg_dir + KERNEL_PGD_BOUNDARY,
-                        min_t(unsigned long, KERNEL_PGD_PTRS,
-                              KERNEL_PGD_BOUNDARY));
+                        KERNEL_PGD_PTRS);
 
         /* Initialize low mappings */
         clone_pgd_range(trampoline_pg_dir,
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index d632934cb638..26a863a9c2a8 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -655,7 +655,7 @@ void restore_sched_clock_state(void)
 
         local_irq_save(flags);
 
-        get_cpu_var(cyc2ns_offset) = 0;
+        __get_cpu_var(cyc2ns_offset) = 0;
         offset = cyc2ns_suspend - sched_clock();
 
         for_each_possible_cpu(cpu)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index b38bd8b92aa6..66ca98aafdd6 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1870,17 +1870,16 @@ static inline int emulate_grp9(struct x86_emulate_ctxt *ctxt,
                                struct x86_emulate_ops *ops)
 {
         struct decode_cache *c = &ctxt->decode;
-        u64 old = c->dst.orig_val;
+        u64 old = c->dst.orig_val64;
 
         if (((u32) (old >> 0) != (u32) c->regs[VCPU_REGS_RAX]) ||
             ((u32) (old >> 32) != (u32) c->regs[VCPU_REGS_RDX])) {
-
                 c->regs[VCPU_REGS_RAX] = (u32) (old >> 0);
                 c->regs[VCPU_REGS_RDX] = (u32) (old >> 32);
                 ctxt->eflags &= ~EFLG_ZF;
         } else {
-                c->dst.val = ((u64)c->regs[VCPU_REGS_RCX] << 32) |
-                       (u32) c->regs[VCPU_REGS_RBX];
+                c->dst.val64 = ((u64)c->regs[VCPU_REGS_RCX] << 32) |
+                        (u32) c->regs[VCPU_REGS_RBX];
 
                 ctxt->eflags |= EFLG_ZF;
         }
@@ -2616,7 +2615,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
                                         c->src.valptr, c->src.bytes);
                 if (rc != X86EMUL_CONTINUE)
                         goto done;
-                c->src.orig_val = c->src.val;
+                c->src.orig_val64 = c->src.val64;
         }
 
         if (c->src2.type == OP_MEM) {
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 8d10c063d7f2..4b7b73ce2098 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -64,6 +64,9 @@ static void pic_unlock(struct kvm_pic *s)
                 if (!found)
                         found = s->kvm->bsp_vcpu;
 
+                if (!found)
+                        return;
+
                 kvm_vcpu_kick(found);
         }
 }
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index ffed06871c5c..63c314502993 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -43,7 +43,6 @@ struct kvm_kpic_state {
         u8 irr;         /* interrupt request register */
         u8 imr;         /* interrupt mask register */
         u8 isr;         /* interrupt service register */
-        u8 isr_ack;     /* interrupt ack detection */
         u8 priority_add;        /* highest irq priority */
         u8 irq_base;
         u8 read_reg_select;
@@ -56,6 +55,7 @@ struct kvm_kpic_state {
         u8 init4;               /* true if 4 byte init */
         u8 elcr;                /* PIIX edge/trigger selection */
         u8 elcr_mask;
+        u8 isr_ack;     /* interrupt ack detection */
         struct kvm_pic *pics_state;
 };
 
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 9257510b4836..9d5f55848455 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -324,9 +324,8 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
 }
 
 /*
- * For a single GDT entry which changes, we do the lazy thing: alter our GDT,
- * then tell the Host to reload the entire thing.  This operation is so rare
- * that this naive implementation is reasonable.
+ * For a single GDT entry which changes, we simply change our copy and
+ * then tell the host about it.
  */
 static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
                                    const void *desc, int type)
@@ -338,9 +337,13 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
 }
 
 /*
- * OK, I lied.  There are three "thread local storage" GDT entries which change
+ * There are three "thread local storage" GDT entries which change
  * on every context switch (these three entries are how glibc implements
- * __thread variables).  So we have a hypercall specifically for this case.
+ * __thread variables).  As an optimization, we have a hypercall
+ * specifically for this case.
+ *
+ * Wouldn't it be nicer to have a general LOAD_GDT_ENTRIES hypercall
+ * which took a range of entries?
  */
 static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
 {
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index 84e236ce76ba..72fc70cf6184 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -74,7 +74,7 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
 /*
  * Map 'pfn' using fixed map 'type' and protections 'prot'
  */
-void *
+void __iomem *
 iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
 {
         /*
@@ -86,12 +86,12 @@ iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
         if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
                 prot = PAGE_KERNEL_UC_MINUS;
 
-        return kmap_atomic_prot_pfn(pfn, type, prot);
+        return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, type, prot);
 }
 EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
 
 void
-iounmap_atomic(void *kvaddr, enum km_type type)
+iounmap_atomic(void __iomem *kvaddr, enum km_type type)
 {
         unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
         enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index f6b48f6c5951..009b819f48d0 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -568,8 +568,13 @@ static int __init init_sysfs(void)
         int error;
 
         error = sysdev_class_register(&oprofile_sysclass);
-        if (!error)
-                error = sysdev_register(&device_oprofile);
+        if (error)
+                return error;
+
+        error = sysdev_register(&device_oprofile);
+        if (error)
+                sysdev_class_unregister(&oprofile_sysclass);
+
         return error;
 }
 
@@ -580,8 +585,10 @@ static void exit_sysfs(void)
 }
 
 #else
-#define init_sysfs() do { } while (0)
-#define exit_sysfs() do { } while (0)
+
+static inline int  init_sysfs(void) { return 0; }
+static inline void exit_sysfs(void) { }
+
 #endif /* CONFIG_PM */
 
 static int __init p4_init(char **cpu_type)
@@ -664,7 +671,9 @@ static int __init ppro_init(char **cpu_type)
         case 14:
                 *cpu_type = "i386/core";
                 break;
-        case 15: case 23:
+        case 0x0f:
+        case 0x16:
+        case 0x17:
                 *cpu_type = "i386/core_2";
                 break;
         case 0x1a:
@@ -695,6 +704,8 @@ int __init op_nmi_init(struct oprofile_operations *ops)
         char *cpu_type = NULL;
         int ret = 0;
 
+        using_nmi = 0;
+
         if (!cpu_has_apic)
                 return -ENODEV;
 
@@ -774,7 +785,10 @@ int __init op_nmi_init(struct oprofile_operations *ops)
 
         mux_init(ops);
 
-        init_sysfs();
+        ret = init_sysfs();
+        if (ret)
+                return ret;
+
         using_nmi = 1;
         printk(KERN_INFO "oprofile: using NMI interrupt.\n");
         return 0;
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index a6809645d212..2fef1ef931a0 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -966,7 +966,7 @@ blkiocg_create(struct cgroup_subsys *subsys, struct cgroup *cgroup)
 
         /* Currently we do not support hierarchy deeper than two level (0,1) */
         if (parent != cgroup->top_cgroup)
-                return ERR_PTR(-EINVAL);
+                return ERR_PTR(-EPERM);
 
         blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL);
         if (!blkcg)
diff --git a/block/blk-core.c b/block/blk-core.c
index ee1a1e7e63cc..32a1c123dfb3 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1198,9 +1198,9 @@ static int __make_request(struct request_queue *q, struct bio *bio)
         int el_ret;
         unsigned int bytes = bio->bi_size;
         const unsigned short prio = bio_prio(bio);
-        const bool sync = (bio->bi_rw & REQ_SYNC);
-        const bool unplug = (bio->bi_rw & REQ_UNPLUG);
-        const unsigned int ff = bio->bi_rw & REQ_FAILFAST_MASK;
+        const bool sync = !!(bio->bi_rw & REQ_SYNC);
+        const bool unplug = !!(bio->bi_rw & REQ_UNPLUG);
+        const unsigned long ff = bio->bi_rw & REQ_FAILFAST_MASK;
         int rw_flags;
 
         if ((bio->bi_rw & REQ_HARDBARRIER) &&
diff --git a/block/blk-map.c b/block/blk-map.c
index c65d7593f7f1..ade0a08c9099 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -307,7 +307,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
                 return PTR_ERR(bio);
 
         if (rq_data_dir(rq) == WRITE)
-                bio->bi_rw |= (1 << REQ_WRITE);
+                bio->bi_rw |= REQ_WRITE;
 
         if (do_copy)
                 rq->cmd_flags |= REQ_COPY_USER;
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 3b0cd4249671..eafc94f68d79 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -362,6 +362,18 @@ static int attempt_merge(struct request_queue *q, struct request *req,
                 return 0;
 
         /*
+         * Don't merge file system requests and discard requests
+         */
+        if ((req->cmd_flags & REQ_DISCARD) != (next->cmd_flags & REQ_DISCARD))
+                return 0;
+
+        /*
+         * Don't merge discard requests and secure discard requests
+         */
+        if ((req->cmd_flags & REQ_SECURE) != (next->cmd_flags & REQ_SECURE))
+                return 0;
+
+        /*
          * not contiguous
          */
         if (blk_rq_pos(req) + blk_rq_sectors(req) != blk_rq_pos(next))
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 001ab18078f5..0749b89c6885 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -511,6 +511,7 @@ int blk_register_queue(struct gendisk *disk)
                 kobject_uevent(&q->kobj, KOBJ_REMOVE);
                 kobject_del(&q->kobj);
                 blk_trace_remove_sysfs(disk_to_dev(disk));
+                kobject_put(&dev->kobj);
                 return ret;
         }
 
diff --git a/block/blk.h b/block/blk.h
index 6e7dc87141e4..d6b911ac002c 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -142,14 +142,18 @@ static inline int queue_congestion_off_threshold(struct request_queue *q)
 
 static inline int blk_cpu_to_group(int cpu)
 {
+        int group = NR_CPUS;
 #ifdef CONFIG_SCHED_MC
         const struct cpumask *mask = cpu_coregroup_mask(cpu);
-        return cpumask_first(mask);
+        group = cpumask_first(mask);
 #elif defined(CONFIG_SCHED_SMT)
-        return cpumask_first(topology_thread_cpumask(cpu));
+        group = cpumask_first(topology_thread_cpumask(cpu));
 #else
         return cpu;
 #endif
+        if (likely(group < NR_CPUS))
+                return group;
+        return cpu;
 }
 
 /*
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index eb4086f7dfef..9eba291eb6fd 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -30,6 +30,7 @@ static const int cfq_slice_sync = HZ / 10;
 static int cfq_slice_async = HZ / 25;
 static const int cfq_slice_async_rq = 2;
 static int cfq_slice_idle = HZ / 125;
+static int cfq_group_idle = HZ / 125;
 static const int cfq_target_latency = HZ * 3/10; /* 300 ms */
 static const int cfq_hist_divisor = 4;
 
@@ -147,6 +148,8 @@ struct cfq_queue {
         struct cfq_queue *new_cfqq;
         struct cfq_group *cfqg;
         struct cfq_group *orig_cfqg;
+        /* Number of sectors dispatched from queue in single dispatch round */
+        unsigned long nr_sectors;
 };
 
 /*
@@ -198,6 +201,8 @@ struct cfq_group {
         struct hlist_node cfqd_node;
         atomic_t ref;
 #endif
+        /* number of requests that are on the dispatch list or inside driver */
+        int dispatched;
 };
 
 /*
@@ -271,6 +276,7 @@ struct cfq_data {
         unsigned int cfq_slice[2];
         unsigned int cfq_slice_async_rq;
         unsigned int cfq_slice_idle;
+        unsigned int cfq_group_idle;
         unsigned int cfq_latency;
         unsigned int cfq_group_isolation;
 
@@ -378,6 +384,21 @@ CFQ_CFQQ_FNS(wait_busy);
                         &cfqg->service_trees[i][j]: NULL) \
 
 
+static inline bool iops_mode(struct cfq_data *cfqd)
+{
+        /*
+         * If we are not idling on queues and it is a NCQ drive, parallel
+         * execution of requests is on and measuring time is not possible
+         * in most of the cases until and unless we drive shallower queue
+         * depths and that becomes a performance bottleneck. In such cases
+         * switch to start providing fairness in terms of number of IOs.
+         */
+        if (!cfqd->cfq_slice_idle && cfqd->hw_tag)
+                return true;
+        else
+                return false;
+}
+
 static inline enum wl_prio_t cfqq_prio(struct cfq_queue *cfqq)
 {
         if (cfq_class_idle(cfqq))
@@ -906,7 +927,6 @@ static inline unsigned int cfq_cfqq_slice_usage(struct cfq_queue *cfqq)
                         slice_used = cfqq->allocated_slice;
         }
 
-        cfq_log_cfqq(cfqq->cfqd, cfqq, "sl_used=%u", slice_used);
         return slice_used;
 }
 
@@ -914,19 +934,21 @@ static void cfq_group_served(struct cfq_data *cfqd, struct cfq_group *cfqg,
                                 struct cfq_queue *cfqq)
 {
         struct cfq_rb_root *st = &cfqd->grp_service_tree;
-        unsigned int used_sl, charge_sl;
+        unsigned int used_sl, charge;
         int nr_sync = cfqg->nr_cfqq - cfqg_busy_async_queues(cfqd, cfqg)
                         - cfqg->service_tree_idle.count;
 
         BUG_ON(nr_sync < 0);
-        used_sl = charge_sl = cfq_cfqq_slice_usage(cfqq);
+        used_sl = charge = cfq_cfqq_slice_usage(cfqq);
 
-        if (!cfq_cfqq_sync(cfqq) && !nr_sync)
-                charge_sl = cfqq->allocated_slice;
+        if (iops_mode(cfqd))
+                charge = cfqq->slice_dispatch;
+        else if (!cfq_cfqq_sync(cfqq) && !nr_sync)
+                charge = cfqq->allocated_slice;
 
         /* Can't update vdisktime while group is on service tree */
         cfq_rb_erase(&cfqg->rb_node, st);
-        cfqg->vdisktime += cfq_scale_slice(charge_sl, cfqg);
+        cfqg->vdisktime += cfq_scale_slice(charge, cfqg);
         __cfq_group_service_tree_add(st, cfqg);
 
         /* This group is being expired. Save the context */
@@ -940,6 +962,9 @@ static void cfq_group_served(struct cfq_data *cfqd, struct cfq_group *cfqg,
 
         cfq_log_cfqg(cfqd, cfqg, "served: vt=%llu min_vt=%llu", cfqg->vdisktime,
                                         st->min_vdisktime);
+        cfq_log_cfqq(cfqq->cfqd, cfqq, "sl_used=%u disp=%u charge=%u iops=%u"
+                        " sect=%u", used_sl, cfqq->slice_dispatch, charge,
+                        iops_mode(cfqd), cfqq->nr_sectors);
         cfq_blkiocg_update_timeslice_used(&cfqg->blkg, used_sl);
         cfq_blkiocg_set_start_empty_time(&cfqg->blkg);
 }
@@ -994,10 +1019,20 @@ cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create)
          */
         atomic_set(&cfqg->ref, 1);
 
-        /* Add group onto cgroup list */
-        sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
-        cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+        /*
+         * Add group onto cgroup list. It might happen that bdi->dev is
+         * not initiliazed yet. Initialize this new group without major
+         * and minor info and this info will be filled in once a new thread
+         * comes for IO. See code above.
+         */
+        if (bdi->dev) {
+                sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
+                cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
                                         MKDEV(major, minor));
+        } else
+                cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+                                        0);
+
         cfqg->weight = blkcg_get_weight(blkcg, cfqg->blkg.dev);
 
         /* Add group on cfqd list */
@@ -1587,6 +1622,7 @@ static void __cfq_set_active_queue(struct cfq_data *cfqd,
                 cfqq->allocated_slice = 0;
                 cfqq->slice_end = 0;
                 cfqq->slice_dispatch = 0;
+                cfqq->nr_sectors = 0;
 
                 cfq_clear_cfqq_wait_request(cfqq);
                 cfq_clear_cfqq_must_dispatch(cfqq);
@@ -1839,6 +1875,9 @@ static bool cfq_should_idle(struct cfq_data *cfqd, struct cfq_queue *cfqq)
         BUG_ON(!service_tree);
         BUG_ON(!service_tree->count);
 
+        if (!cfqd->cfq_slice_idle)
+                return false;
+
         /* We never do for idle class queues. */
         if (prio == IDLE_WORKLOAD)
                 return false;
@@ -1863,7 +1902,7 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
 {
         struct cfq_queue *cfqq = cfqd->active_queue;
         struct cfq_io_context *cic;
-        unsigned long sl;
+        unsigned long sl, group_idle = 0;
 
         /*
          * SSD device without seek penalty, disable idling. But only do so
@@ -1879,8 +1918,13 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
         /*
          * idle is disabled, either manually or by past process history
          */
-        if (!cfqd->cfq_slice_idle || !cfq_should_idle(cfqd, cfqq))
-                return;
+        if (!cfq_should_idle(cfqd, cfqq)) {
+                /* no queue idling. Check for group idling */
+                if (cfqd->cfq_group_idle)
+                        group_idle = cfqd->cfq_group_idle;
+                else
+                        return;
+        }
 
         /*
          * still active requests from this queue, don't idle
@@ -1907,13 +1951,21 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
                 return;
         }
 
+        /* There are other queues in the group, don't do group idle */
+        if (group_idle && cfqq->cfqg->nr_cfqq > 1)
+                return;
+
         cfq_mark_cfqq_wait_request(cfqq);
 
-        sl = cfqd->cfq_slice_idle;
+        if (group_idle)
+                sl = cfqd->cfq_group_idle;
+        else
+                sl = cfqd->cfq_slice_idle;
 
         mod_timer(&cfqd->idle_slice_timer, jiffies + sl);
         cfq_blkiocg_update_set_idle_time_stats(&cfqq->cfqg->blkg);
-        cfq_log_cfqq(cfqd, cfqq, "arm_idle: %lu", sl);
+        cfq_log_cfqq(cfqd, cfqq, "arm_idle: %lu group_idle: %d", sl,
+                        group_idle ? 1 : 0);
 }
 
 /*
@@ -1929,9 +1981,11 @@ static void cfq_dispatch_insert(struct request_queue *q, struct request *rq)
         cfqq->next_rq = cfq_find_next_rq(cfqd, cfqq, rq);
         cfq_remove_request(rq);
         cfqq->dispatched++;
+        (RQ_CFQG(rq))->dispatched++;
         elv_dispatch_sort(q, rq);
 
         cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]++;
+        cfqq->nr_sectors += blk_rq_sectors(rq);
         cfq_blkiocg_update_dispatch_stats(&cfqq->cfqg->blkg, blk_rq_bytes(rq),
                                         rq_data_dir(rq), rq_is_sync(rq));
 }
@@ -2198,7 +2252,7 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd)
                         cfqq = NULL;
                         goto keep_queue;
                 } else
-                        goto expire;
+                        goto check_group_idle;
         }
 
         /*
@@ -2226,8 +2280,23 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd)
          * flight or is idling for a new request, allow either of these
          * conditions to happen (or time out) before selecting a new queue.
          */
-        if (timer_pending(&cfqd->idle_slice_timer) ||
-            (cfqq->dispatched && cfq_should_idle(cfqd, cfqq))) {
+        if (timer_pending(&cfqd->idle_slice_timer)) {
+                cfqq = NULL;
+                goto keep_queue;
+        }
+
+        if (cfqq->dispatched && cfq_should_idle(cfqd, cfqq)) {
+                cfqq = NULL;
+                goto keep_queue;
+        }
+
+        /*
+         * If group idle is enabled and there are requests dispatched from
+         * this group, wait for requests to complete.
+         */
+check_group_idle:
+        if (cfqd->cfq_group_idle && cfqq->cfqg->nr_cfqq == 1
+            && cfqq->cfqg->dispatched) {
                 cfqq = NULL;
                 goto keep_queue;
         }
@@ -3375,6 +3444,7 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq)
         WARN_ON(!cfqq->dispatched);
         cfqd->rq_in_driver--;
         cfqq->dispatched--;
+        (RQ_CFQG(rq))->dispatched--;
         cfq_blkiocg_update_completion_stats(&cfqq->cfqg->blkg,
                         rq_start_time_ns(rq), rq_io_start_time_ns(rq),
                         rq_data_dir(rq), rq_is_sync(rq));
@@ -3404,7 +3474,10 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq)
                  * the queue.
                  */
                 if (cfq_should_wait_busy(cfqd, cfqq)) {
-                        cfqq->slice_end = jiffies + cfqd->cfq_slice_idle;
+                        unsigned long extend_sl = cfqd->cfq_slice_idle;
+                        if (!cfqd->cfq_slice_idle)
+                                extend_sl = cfqd->cfq_group_idle;
+                        cfqq->slice_end = jiffies + extend_sl;
                         cfq_mark_cfqq_wait_busy(cfqq);
                         cfq_log_cfqq(cfqd, cfqq, "will busy wait");
                 }
@@ -3850,6 +3923,7 @@ static void *cfq_init_queue(struct request_queue *q)
         cfqd->cfq_slice[1] = cfq_slice_sync;
         cfqd->cfq_slice_async_rq = cfq_slice_async_rq;
         cfqd->cfq_slice_idle = cfq_slice_idle;
+        cfqd->cfq_group_idle = cfq_group_idle;
         cfqd->cfq_latency = 1;
         cfqd->cfq_group_isolation = 0;
         cfqd->hw_tag = -1;
@@ -3922,6 +3996,7 @@ SHOW_FUNCTION(cfq_fifo_expire_async_show, cfqd->cfq_fifo_expire[0], 1);
 SHOW_FUNCTION(cfq_back_seek_max_show, cfqd->cfq_back_max, 0);
 SHOW_FUNCTION(cfq_back_seek_penalty_show, cfqd->cfq_back_penalty, 0);
 SHOW_FUNCTION(cfq_slice_idle_show, cfqd->cfq_slice_idle, 1);
+SHOW_FUNCTION(cfq_group_idle_show, cfqd->cfq_group_idle, 1);
 SHOW_FUNCTION(cfq_slice_sync_show, cfqd->cfq_slice[1], 1);
 SHOW_FUNCTION(cfq_slice_async_show, cfqd->cfq_slice[0], 1);
 SHOW_FUNCTION(cfq_slice_async_rq_show, cfqd->cfq_slice_async_rq, 0);
@@ -3954,6 +4029,7 @@ STORE_FUNCTION(cfq_back_seek_max_store, &cfqd->cfq_back_max, 0, UINT_MAX, 0);
 STORE_FUNCTION(cfq_back_seek_penalty_store, &cfqd->cfq_back_penalty, 1,
                 UINT_MAX, 0);
 STORE_FUNCTION(cfq_slice_idle_store, &cfqd->cfq_slice_idle, 0, UINT_MAX, 1);
+STORE_FUNCTION(cfq_group_idle_store, &cfqd->cfq_group_idle, 0, UINT_MAX, 1);
 STORE_FUNCTION(cfq_slice_sync_store, &cfqd->cfq_slice[1], 1, UINT_MAX, 1);
 STORE_FUNCTION(cfq_slice_async_store, &cfqd->cfq_slice[0], 1, UINT_MAX, 1);
 STORE_FUNCTION(cfq_slice_async_rq_store, &cfqd->cfq_slice_async_rq, 1,
@@ -3975,6 +4051,7 @@ static struct elv_fs_entry cfq_attrs[] = {
         CFQ_ATTR(slice_async),
         CFQ_ATTR(slice_async_rq),
         CFQ_ATTR(slice_idle),
+        CFQ_ATTR(group_idle),
         CFQ_ATTR(low_latency),
         CFQ_ATTR(group_isolation),
         __ATTR_NULL
@@ -4028,6 +4105,12 @@ static int __init cfq_init(void)
         if (!cfq_slice_idle)
                 cfq_slice_idle = 1;
 
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+        if (!cfq_group_idle)
+                cfq_group_idle = 1;
+#else
+                cfq_group_idle = 0;
+#endif
         if (cfq_slab_setup())
                 return -ENOMEM;
 
diff --git a/block/elevator.c b/block/elevator.c
index ec585c9554d3..205b09a5bd9e 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -1009,18 +1009,19 @@ static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
 {
         struct elevator_queue *old_elevator, *e;
         void *data;
+        int err;
 
         /*
          * Allocate new elevator
          */
         e = elevator_alloc(q, new_e);
         if (!e)
-                return 0;
+                return -ENOMEM;
 
         data = elevator_init_queue(q, e);
         if (!data) {
                 kobject_put(&e->kobj);
-                return 0;
+                return -ENOMEM;
         }
 
         /*
@@ -1043,7 +1044,8 @@ static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
 
         __elv_unregister_queue(old_elevator);
 
-        if (elv_register_queue(q))
+        err = elv_register_queue(q);
+        if (err)
                 goto fail_register;
 
         /*
@@ -1056,7 +1058,7 @@ static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
 
         blk_add_trace_msg(q, "elv switch: %s", e->elevator_type->elevator_name);
 
-        return 1;
+        return 0;
 
 fail_register:
         /*
@@ -1071,17 +1073,19 @@ fail_register:
         queue_flag_clear(QUEUE_FLAG_ELVSWITCH, q);
         spin_unlock_irq(q->queue_lock);
 
-        return 0;
+        return err;
 }
 
-ssize_t elv_iosched_store(struct request_queue *q, const char *name,
-                          size_t count)
+/*
+ * Switch this queue to the given IO scheduler.
+ */
+int elevator_change(struct request_queue *q, const char *name)
 {
         char elevator_name[ELV_NAME_MAX];
         struct elevator_type *e;
 
         if (!q->elevator)
-                return count;
+                return -ENXIO;
 
         strlcpy(elevator_name, name, sizeof(elevator_name));
         e = elevator_get(strstrip(elevator_name));
@@ -1092,13 +1096,27 @@ ssize_t elv_iosched_store(struct request_queue *q, const char *name,
 
         if (!strcmp(elevator_name, q->elevator->elevator_type->elevator_name)) {
                 elevator_put(e);
-                return count;
+                return 0;
         }
 
-        if (!elevator_switch(q, e))
-                printk(KERN_ERR "elevator: switch to %s failed\n",
-                                                        elevator_name);
-        return count;
+        return elevator_switch(q, e);
+}
+EXPORT_SYMBOL(elevator_change);
+
+ssize_t elv_iosched_store(struct request_queue *q, const char *name,
+                          size_t count)
+{
+        int ret;
+
+        if (!q->elevator)
+                return count;
+
+        ret = elevator_change(q, name);
+        if (!ret)
+                return count;
+
+        printk(KERN_ERR "elevator: switch to %s failed\n", name);
+        return ret;
 }
 
 ssize_t elv_iosched_show(struct request_queue *q, char *name)
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 1cd497d7a15a..e573077f1672 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -101,13 +101,13 @@ config CRYPTO_MANAGER2
         select CRYPTO_BLKCIPHER2
         select CRYPTO_PCOMP2
 
-config CRYPTO_MANAGER_TESTS
-        bool "Run algolithms' self-tests"
+config CRYPTO_MANAGER_DISABLE_TESTS
+        bool "Disable run-time self tests"
         default y
         depends on CRYPTO_MANAGER2
         help
-          Run cryptomanager's tests for the new crypto algorithms being
-          registered.
+          Disable run-time self tests that normally take place at
+          algorithm registration.
 
 config CRYPTO_GF128MUL
         tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
diff --git a/crypto/ahash.c b/crypto/ahash.c
index b8c59b889c6e..f669822a7a44 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -47,8 +47,11 @@ static int hash_walk_next(struct crypto_hash_walk *walk)
         walk->data = crypto_kmap(walk->pg, 0);
         walk->data += offset;
 
-        if (offset & alignmask)
-                nbytes = alignmask + 1 - (offset & alignmask);
+        if (offset & alignmask) {
+                unsigned int unaligned = alignmask + 1 - (offset & alignmask);
+                if (nbytes > unaligned)
+                        nbytes = unaligned;
+        }
 
         walk->entrylen -= nbytes;
         return nbytes;
diff --git a/crypto/algboss.c b/crypto/algboss.c
index 40bd391f34d9..791d194958fa 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -206,13 +206,16 @@ err:
         return NOTIFY_OK;
 }
 
-#ifdef CONFIG_CRYPTO_MANAGER_TESTS
 static int cryptomgr_test(void *data)
 {
         struct crypto_test_param *param = data;
         u32 type = param->type;
         int err = 0;
 
+#ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
+        goto skiptest;
+#endif
+
         if (type & CRYPTO_ALG_TESTED)
                 goto skiptest;
 
@@ -267,7 +270,6 @@ err_put_module:
 err:
         return NOTIFY_OK;
 }
-#endif /* CONFIG_CRYPTO_MANAGER_TESTS */
 
 static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
                             void *data)
@@ -275,10 +277,8 @@ static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
         switch (msg) {
         case CRYPTO_MSG_ALG_REQUEST:
                 return cryptomgr_schedule_probe(data);
-#ifdef CONFIG_CRYPTO_MANAGER_TESTS
         case CRYPTO_MSG_ALG_REGISTER:
                 return cryptomgr_schedule_test(data);
-#endif
         }
 
         return NOTIFY_DONE;
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index abd980c729eb..fa8c8f78c8d4 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -23,7 +23,7 @@
 
 #include "internal.h"
 
-#ifndef CONFIG_CRYPTO_MANAGER_TESTS
+#ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
 
 /* a perfect nop */
 int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
@@ -2542,6 +2542,6 @@ non_fips_alg:
         return -EINVAL;
 }
 
-#endif /* CONFIG_CRYPTO_MANAGER_TESTS */
+#endif /* CONFIG_CRYPTO_MANAGER_DISABLE_TESTS */
 
 EXPORT_SYMBOL_GPL(alg_test);
diff --git a/drivers/Makefile b/drivers/Makefile
index ae473445ad6d..a2aea53a75ed 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -50,7 +50,7 @@ obj-$(CONFIG_SPI)		+= spi/
 obj-y                           += net/
 obj-$(CONFIG_ATM)               += atm/
 obj-$(CONFIG_FUSION)            += message/
-obj-$(CONFIG_FIREWIRE)          += firewire/
+obj-y                           += firewire/
 obj-y                           += ieee1394/
 obj-$(CONFIG_UIO)               += uio/
 obj-y                           += cdrom/
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 1f67057af2a5..3ba8d1f44a73 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -33,7 +33,6 @@
 #include <linux/pm_runtime.h>
 #include <linux/pci.h>
 #include <linux/pci-acpi.h>
-#include <linux/pci-aspm.h>
 #include <linux/acpi.h>
 #include <linux/slab.h>
 #include <acpi/acpi_bus.h>
@@ -226,22 +225,31 @@ static acpi_status acpi_pci_run_osc(acpi_handle handle,
         return status;
 }
 
-static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, u32 flags)
+static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
+                                        u32 support,
+                                        u32 *control)
 {
         acpi_status status;
-        u32 support_set, result, capbuf[3];
+        u32 result, capbuf[3];
+
+        support &= OSC_PCI_SUPPORT_MASKS;
+        support |= root->osc_support_set;
 
-        /* do _OSC query for all possible controls */
-        support_set = root->osc_support_set | (flags & OSC_PCI_SUPPORT_MASKS);
         capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
-        capbuf[OSC_SUPPORT_TYPE] = support_set;
-        capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
+        capbuf[OSC_SUPPORT_TYPE] = support;
+        if (control) {
+                *control &= OSC_PCI_CONTROL_MASKS;
+                capbuf[OSC_CONTROL_TYPE] = *control | root->osc_control_set;
+        } else {
+                /* Run _OSC query for all possible controls. */
+                capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
+        }
 
         status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
         if (ACPI_SUCCESS(status)) {
-                root->osc_support_set = support_set;
-                root->osc_control_qry = result;
-                root->osc_queried = 1;
+                root->osc_support_set = support;
+                if (control)
+                        *control = result;
         }
         return status;
 }
@@ -255,7 +263,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
         if (ACPI_FAILURE(status))
                 return status;
         mutex_lock(&osc_lock);
-        status = acpi_pci_query_osc(root, flags);
+        status = acpi_pci_query_osc(root, flags, NULL);
         mutex_unlock(&osc_lock);
         return status;
 }
@@ -365,55 +373,70 @@ out:
 EXPORT_SYMBOL_GPL(acpi_get_pci_dev);
 
 /**
- * acpi_pci_osc_control_set - commit requested control to Firmware
- * @handle: acpi_handle for the target ACPI object
- * @flags: driver's requested control bits
+ * acpi_pci_osc_control_set - Request control of PCI root _OSC features.
+ * @handle: ACPI handle of a PCI root bridge (or PCIe Root Complex).
+ * @mask: Mask of _OSC bits to request control of, place to store control mask.
+ * @req: Mask of _OSC bits the control of is essential to the caller.
+ *
+ * Run _OSC query for @mask and if that is successful, compare the returned
+ * mask of control bits with @req.  If all of the @req bits are set in the
+ * returned mask, run _OSC request for it.
  *
- * Attempt to take control from Firmware on requested control bits.
+ * The variable at the @mask address may be modified regardless of whether or
+ * not the function returns success.  On success it will contain the mask of
+ * _OSC bits the BIOS has granted control of, but its contents are meaningless
+ * on failure.
  **/
-acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags)
+acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
 {
+        struct acpi_pci_root *root;
         acpi_status status;
-        u32 control_req, result, capbuf[3];
+        u32 ctrl, capbuf[3];
         acpi_handle tmp;
-        struct acpi_pci_root *root;
 
-        status = acpi_get_handle(handle, "_OSC", &tmp);
-        if (ACPI_FAILURE(status))
-                return status;
+        if (!mask)
+                return AE_BAD_PARAMETER;
 
-        control_req = (flags & OSC_PCI_CONTROL_MASKS);
-        if (!control_req)
+        ctrl = *mask & OSC_PCI_CONTROL_MASKS;
+        if ((ctrl & req) != req)
                 return AE_TYPE;
 
         root = acpi_pci_find_root(handle);
         if (!root)
                 return AE_NOT_EXIST;
 
+        status = acpi_get_handle(handle, "_OSC", &tmp);
+        if (ACPI_FAILURE(status))
+                return status;
+
         mutex_lock(&osc_lock);
+
+        *mask = ctrl | root->osc_control_set;
         /* No need to evaluate _OSC if the control was already granted. */
-        if ((root->osc_control_set & control_req) == control_req)
+        if ((root->osc_control_set & ctrl) == ctrl)
                 goto out;
 
-        /* Need to query controls first before requesting them */
-        if (!root->osc_queried) {
-                status = acpi_pci_query_osc(root, root->osc_support_set);
+        /* Need to check the available controls bits before requesting them. */
+        while (*mask) {
+                status = acpi_pci_query_osc(root, root->osc_support_set, mask);
                 if (ACPI_FAILURE(status))
                         goto out;
+                if (ctrl == *mask)
+                        break;
+                ctrl = *mask;
         }
-        if ((root->osc_control_qry & control_req) != control_req) {
-                printk(KERN_DEBUG
-                       "Firmware did not grant requested _OSC control\n");
+
+        if ((ctrl & req) != req) {
                 status = AE_SUPPORT;
                 goto out;
         }
 
         capbuf[OSC_QUERY_TYPE] = 0;
         capbuf[OSC_SUPPORT_TYPE] = root->osc_support_set;
-        capbuf[OSC_CONTROL_TYPE] = root->osc_control_set | control_req;
-        status = acpi_pci_run_osc(handle, capbuf, &result);
+        capbuf[OSC_CONTROL_TYPE] = ctrl;
+        status = acpi_pci_run_osc(handle, capbuf, mask);
         if (ACPI_SUCCESS(status))
-                root->osc_control_set = result;
+                root->osc_control_set = *mask;
 out:
         mutex_unlock(&osc_lock);
         return status;
@@ -544,14 +567,6 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
         if (flags != base_flags)
                 acpi_pci_osc_support(root, flags);
 
-        status = acpi_pci_osc_control_set(root->device->handle,
-                                          OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
-
-        if (ACPI_FAILURE(status)) {
-                printk(KERN_INFO "Unable to assume PCIe control: Disabling ASPM\n");
-                pcie_no_aspm();
-        }
-
         pci_acpi_add_bus_pm_notifier(device, root->bus);
         if (device->wakeup.flags.run_wake)
                 device_set_run_wake(root->bus->bridge, true);
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index d31590e7011b..2737b9752205 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -298,7 +298,7 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
 
                 amba_put_disable_pclk(dev);
 
-                if (cid == 0xb105f00d)
+                if (cid == AMBA_CID)
                         dev->periphid = pid;
 
                 if (!dev->periphid)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 013727b20417..99d0e5a51148 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -90,6 +90,10 @@ static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
 static int ahci_pci_device_resume(struct pci_dev *pdev);
 #endif
 
+static struct scsi_host_template ahci_sht = {
+        AHCI_SHT("ahci"),
+};
+
 static struct ata_port_operations ahci_vt8251_ops = {
         .inherits               = &ahci_ops,
         .hardreset              = ahci_vt8251_hardreset,
@@ -253,6 +257,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
         { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
         { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
+        { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
+        { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
+        { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
 
         /* JMicron 360/1/3/5/6, match class to avoid IDE function */
         { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 474427b6f99f..e5fdeebf9ef0 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -298,7 +298,17 @@ struct ahci_host_priv {
 
 extern int ahci_ignore_sss;
 
-extern struct scsi_host_template ahci_sht;
+extern struct device_attribute *ahci_shost_attrs[];
+extern struct device_attribute *ahci_sdev_attrs[];
+
+#define AHCI_SHT(drv_name)                                              \
+        ATA_NCQ_SHT(drv_name),                                          \
+        .can_queue              = AHCI_MAX_CMDS - 1,                    \
+        .sg_tablesize           = AHCI_MAX_SG,                          \
+        .dma_boundary           = AHCI_DMA_BOUNDARY,                    \
+        .shost_attrs            = ahci_shost_attrs,                     \
+        .sdev_attrs             = ahci_sdev_attrs
+
 extern struct ata_port_operations ahci_ops;
 
 void ahci_save_initial_config(struct device *dev,
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 4e97f33cca44..84b643270e7a 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -23,6 +23,10 @@
 #include <linux/ahci_platform.h>
 #include "ahci.h"
 
+static struct scsi_host_template ahci_platform_sht = {
+        AHCI_SHT("ahci_platform"),
+};
+
 static int __init ahci_probe(struct platform_device *pdev)
 {
         struct device *dev = &pdev->dev;
@@ -145,7 +149,7 @@ static int __init ahci_probe(struct platform_device *pdev)
         ahci_print_info(host, "platform");
 
         rc = ata_host_activate(host, irq, ahci_interrupt, IRQF_SHARED,
-                               &ahci_sht);
+                               &ahci_platform_sht);
         if (rc)
                 goto err0;
 
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 3971bc0a4838..d712675d0a96 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -302,6 +302,10 @@ static const struct pci_device_id piix_pci_tbl[] = {
         { 0x8086, 0x1c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
         /* SATA Controller IDE (CPT) */
         { 0x8086, 0x1c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+        /* SATA Controller IDE (PBG) */
+        { 0x8086, 0x1d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
+        /* SATA Controller IDE (PBG) */
+        { 0x8086, 0x1d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
         { }     /* terminate list */
 };
 
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 666850d31df2..8eea309ea212 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -121,7 +121,7 @@ static DEVICE_ATTR(ahci_port_cmd, S_IRUGO, ahci_show_port_cmd, NULL);
 static DEVICE_ATTR(em_buffer, S_IWUSR | S_IRUGO,
                    ahci_read_em_buffer, ahci_store_em_buffer);
 
-static struct device_attribute *ahci_shost_attrs[] = {
+struct device_attribute *ahci_shost_attrs[] = {
         &dev_attr_link_power_management_policy,
         &dev_attr_em_message_type,
         &dev_attr_em_message,
@@ -132,22 +132,14 @@ static struct device_attribute *ahci_shost_attrs[] = {
         &dev_attr_em_buffer,
         NULL
 };
+EXPORT_SYMBOL_GPL(ahci_shost_attrs);
 
-static struct device_attribute *ahci_sdev_attrs[] = {
+struct device_attribute *ahci_sdev_attrs[] = {
         &dev_attr_sw_activity,
         &dev_attr_unload_heads,
         NULL
 };
-
-struct scsi_host_template ahci_sht = {
-        ATA_NCQ_SHT("ahci"),
-        .can_queue              = AHCI_MAX_CMDS - 1,
-        .sg_tablesize           = AHCI_MAX_SG,
-        .dma_boundary           = AHCI_DMA_BOUNDARY,
-        .shost_attrs            = ahci_shost_attrs,
-        .sdev_attrs             = ahci_sdev_attrs,
-};
-EXPORT_SYMBOL_GPL(ahci_sht);
+EXPORT_SYMBOL_GPL(ahci_sdev_attrs);
 
 struct ata_port_operations ahci_ops = {
         .inherits               = &sata_pmp_port_ops,
@@ -1326,7 +1318,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
         /* issue the first D2H Register FIS */
         msecs = 0;
         now = jiffies;
-        if (time_after(now, deadline))
+        if (time_after(deadline, now))
                 msecs = jiffies_to_msecs(deadline - now);
 
         tf.ctl |= ATA_SRST;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index c035b3d041ee..932eaee50245 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5418,6 +5418,7 @@ static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
  */
 int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
 {
+        unsigned int ehi_flags = ATA_EHI_QUIET;
         int rc;
 
         /*
@@ -5426,7 +5427,18 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
          */
         ata_lpm_enable(host);
 
-        rc = ata_host_request_pm(host, mesg, 0, ATA_EHI_QUIET, 1);
+        /*
+         * On some hardware, device fails to respond after spun down
+         * for suspend.  As the device won't be used before being
+         * resumed, we don't need to touch the device.  Ask EH to skip
+         * the usual stuff and proceed directly to suspend.
+         *
+         * http://thread.gmane.org/gmane.linux.ide/46764
+         */
+        if (mesg.event == PM_EVENT_SUSPEND)
+                ehi_flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_NO_RECOVERY;
+
+        rc = ata_host_request_pm(host, mesg, 0, ehi_flags, 1);
         if (rc == 0)
                 host->dev->power.power_state = mesg;
         return rc;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index c9ae299b8342..e48302eae55f 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3235,6 +3235,10 @@ static int ata_eh_skip_recovery(struct ata_link *link)
         if (link->flags & ATA_LFLAG_DISABLED)
                 return 1;
 
+        /* skip if explicitly requested */
+        if (ehc->i.flags & ATA_EHI_NO_RECOVERY)
+                return 1;
+
         /* thaw frozen port and recover failed devices */
         if ((ap->pflags & ATA_PFLAG_FROZEN) || ata_link_nr_enabled(link))
                 return 0;
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 3b82d8ef76f0..e30c537cce32 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -418,6 +418,7 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
                 if (ioaddr->ctl_addr)
                         iowrite8(tf->ctl, ioaddr->ctl_addr);
                 ap->last_ctl = tf->ctl;
+                ata_wait_idle(ap);
         }
 
         if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
@@ -453,6 +454,8 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
                 iowrite8(tf->device, ioaddr->device_addr);
                 VPRINTK("device 0x%X\n", tf->device);
         }
+
+        ata_wait_idle(ap);
 }
 EXPORT_SYMBOL_GPL(ata_sff_tf_load);
 
@@ -1042,7 +1045,8 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
 int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
                      u8 status, int in_wq)
 {
-        struct ata_eh_info *ehi = &ap->link.eh_info;
+        struct ata_link *link = qc->dev->link;
+        struct ata_eh_info *ehi = &link->eh_info;
         unsigned long flags = 0;
         int poll_next;
 
@@ -1298,8 +1302,14 @@ fsm_start:
 }
 EXPORT_SYMBOL_GPL(ata_sff_hsm_move);
 
-void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay)
+void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay)
 {
+        struct ata_port *ap = link->ap;
+
+        WARN_ON((ap->sff_pio_task_link != NULL) &&
+                (ap->sff_pio_task_link != link));
+        ap->sff_pio_task_link = link;
+
         /* may fail if ata_sff_flush_pio_task() in progress */
         queue_delayed_work(ata_sff_wq, &ap->sff_pio_task,
                            msecs_to_jiffies(delay));
@@ -1321,14 +1331,18 @@ static void ata_sff_pio_task(struct work_struct *work)
 {
         struct ata_port *ap =
                 container_of(work, struct ata_port, sff_pio_task.work);
+        struct ata_link *link = ap->sff_pio_task_link;
         struct ata_queued_cmd *qc;
         u8 status;
         int poll_next;
 
+        BUG_ON(ap->sff_pio_task_link == NULL); 
         /* qc can be NULL if timeout occurred */
-        qc = ata_qc_from_tag(ap, ap->link.active_tag);
-        if (!qc)
+        qc = ata_qc_from_tag(ap, link->active_tag);
+        if (!qc) {
+                ap->sff_pio_task_link = NULL;
                 return;
+        }
 
 fsm_start:
         WARN_ON_ONCE(ap->hsm_task_state == HSM_ST_IDLE);
@@ -1345,11 +1359,16 @@ fsm_start:
                 msleep(2);
                 status = ata_sff_busy_wait(ap, ATA_BUSY, 10);
                 if (status & ATA_BUSY) {
-                        ata_sff_queue_pio_task(ap, ATA_SHORT_PAUSE);
+                        ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE);
                         return;
                 }
         }
 
+        /*
+         * hsm_move() may trigger another command to be processed.
+         * clean the link beforehand.
+         */
+        ap->sff_pio_task_link = NULL;
         /* move the HSM */
         poll_next = ata_sff_hsm_move(ap, qc, status, 1);
 
@@ -1376,6 +1395,7 @@ fsm_start:
 unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
 {
         struct ata_port *ap = qc->ap;
+        struct ata_link *link = qc->dev->link;
 
         /* Use polling pio if the LLD doesn't handle
          * interrupt driven pio and atapi CDB interrupt.
@@ -1396,7 +1416,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
                 ap->hsm_task_state = HSM_ST_LAST;
 
                 if (qc->tf.flags & ATA_TFLAG_POLLING)
-                        ata_sff_queue_pio_task(ap, 0);
+                        ata_sff_queue_pio_task(link, 0);
 
                 break;
 
@@ -1409,7 +1429,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
                 if (qc->tf.flags & ATA_TFLAG_WRITE) {
                         /* PIO data out protocol */
                         ap->hsm_task_state = HSM_ST_FIRST;
-                        ata_sff_queue_pio_task(ap, 0);
+                        ata_sff_queue_pio_task(link, 0);
 
                         /* always send first data block using the
                          * ata_sff_pio_task() codepath.
@@ -1419,7 +1439,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
                         ap->hsm_task_state = HSM_ST;
 
                         if (qc->tf.flags & ATA_TFLAG_POLLING)
-                                ata_sff_queue_pio_task(ap, 0);
+                                ata_sff_queue_pio_task(link, 0);
 
                         /* if polling, ata_sff_pio_task() handles the
                          * rest.  otherwise, interrupt handler takes
@@ -1441,7 +1461,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
                 /* send cdb by polling if no cdb interrupt */
                 if ((!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) ||
                     (qc->tf.flags & ATA_TFLAG_POLLING))
-                        ata_sff_queue_pio_task(ap, 0);
+                        ata_sff_queue_pio_task(link, 0);
                 break;
 
         default:
@@ -2734,6 +2754,7 @@ EXPORT_SYMBOL_GPL(ata_bmdma_dumb_qc_prep);
 unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc)
 {
         struct ata_port *ap = qc->ap;
+        struct ata_link *link = qc->dev->link;
 
         /* defer PIO handling to sff_qc_issue */
         if (!ata_is_dma(qc->tf.protocol))
@@ -2762,7 +2783,7 @@ unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc)
 
                 /* send cdb by polling if no cdb interrupt */
                 if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
-                        ata_sff_queue_pio_task(ap, 0);
+                        ata_sff_queue_pio_task(link, 0);
                 break;
 
         default:
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index ba43f0f8c880..2215632e4b31 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -74,7 +74,8 @@ static int artop6260_pre_reset(struct ata_link *link, unsigned long deadline)
         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
         /* Odd numbered device ids are the units with enable bits (the -R cards) */
-        if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
+        if ((pdev->device & 1) &&
+            !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
                 return -ENOENT;
 
         return ata_sff_prereset(link, deadline);
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 5e659885de16..ac8d7d97e408 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -417,6 +417,8 @@ static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
                         tf->lbam,
                         tf->lbah);
         }
+
+        ata_wait_idle(ap);
 }
 
 static int via_port_start(struct ata_port *ap)
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 81982594a014..a9fd9709c262 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -2284,7 +2284,7 @@ static unsigned int mv_qc_issue_fis(struct ata_queued_cmd *qc)
         }
 
         if (qc->tf.flags & ATA_TFLAG_POLLING)
-                ata_sff_queue_pio_task(ap, 0);
+                ata_sff_queue_pio_task(link, 0);
         return 0;
 }
 
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 5419a49ff135..276d5a701dc3 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -59,6 +59,7 @@ void device_pm_init(struct device *dev)
 {
         dev->power.status = DPM_ON;
         init_completion(&dev->power.completion);
+        complete_all(&dev->power.completion);
         dev->power.wakeup_count = 0;
         pm_runtime_init(dev);
 }
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 31064df1370a..5e4fadcdece9 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -297,6 +297,8 @@ static void enqueue_cmd_and_start_io(ctlr_info_t *h,
         spin_lock_irqsave(&h->lock, flags);
         addQ(&h->reqQ, c);
         h->Qdepth++;
+        if (h->Qdepth > h->maxQsinceinit)
+                h->maxQsinceinit = h->Qdepth;
         start_io(h);
         spin_unlock_irqrestore(&h->lock, flags);
 }
@@ -4519,6 +4521,12 @@ static __devinit int cciss_kdump_hard_reset_controller(struct pci_dev *pdev)
         misc_fw_support = readl(&cfgtable->misc_fw_support);
         use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
 
+        /* The doorbell reset seems to cause lockups on some Smart
+         * Arrays (e.g. P410, P410i, maybe others).  Until this is
+         * fixed or at least isolated, avoid the doorbell reset.
+         */
+        use_doorbell = 0;
+
         rc = cciss_controller_hard_reset(pdev, vaddr, use_doorbell);
         if (rc)
                 goto unmap_cfgtable;
@@ -4712,6 +4720,9 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
         h->scatter_list = kmalloc(h->max_commands *
                                                 sizeof(struct scatterlist *),
                                                 GFP_KERNEL);
+        if (!h->scatter_list)
+                goto clean4;
+
         for (k = 0; k < h->nr_cmds; k++) {
                 h->scatter_list[k] = kmalloc(sizeof(struct scatterlist) *
                                                         h->maxsgentries,
@@ -4781,7 +4792,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 clean4:
         kfree(h->cmd_pool_bits);
         /* Free up sg elements */
-        for (k = 0; k < h->nr_cmds; k++)
+        for (k-- ; k >= 0; k--)
                 kfree(h->scatter_list[k]);
         kfree(h->scatter_list);
         cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f3c636d23718..91797bbbe702 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -477,7 +477,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
         pos = ((loff_t) bio->bi_sector << 9) + lo->lo_offset;
 
         if (bio_rw(bio) == WRITE) {
-                bool barrier = (bio->bi_rw & REQ_HARDBARRIER);
+                bool barrier = !!(bio->bi_rw & REQ_HARDBARRIER);
                 struct file *file = lo->lo_backing_file;
 
                 if (barrier) {
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index b82c5ce5e9df..76fa3deaee84 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -974,8 +974,7 @@ static int mg_probe(struct platform_device *plat_dev)
         host->breq->queuedata = host;
 
         /* mflash is random device, thanx for the noop */
-        elevator_exit(host->breq->elevator);
-        err = elevator_init(host->breq, "noop");
+        err = elevator_change(host->breq, "noop");
         if (err) {
                 printk(KERN_ERR "%s:%d (elevator_init) fail\n",
                                 __func__, __LINE__);
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b1cbeb59bb76..37a2bb595076 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2369,7 +2369,7 @@ static void pkt_release_dev(struct pktcdvd_device *pd, int flush)
         pkt_shrink_pktlist(pd);
 }
 
-static struct pktcdvd_device *pkt_find_dev_from_minor(int dev_minor)
+static struct pktcdvd_device *pkt_find_dev_from_minor(unsigned int dev_minor)
 {
         if (dev_minor >= MAX_WRITERS)
                 return NULL;
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 710af89b176d..cd18493c9527 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -12,6 +12,7 @@
 #include <asm/smp.h>
 #include "agp.h"
 #include "intel-agp.h"
+#include <linux/intel-gtt.h>
 
 #include "intel-gtt.c"
 
@@ -805,6 +806,8 @@ static const struct intel_driver_description {
             "G45/G43", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_B43_HB, PCI_DEVICE_ID_INTEL_B43_IG,
             "B43", NULL, &intel_i965_driver },
+        { PCI_DEVICE_ID_INTEL_B43_1_HB, PCI_DEVICE_ID_INTEL_B43_1_IG,
+            "B43", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_G41_HB, PCI_DEVICE_ID_INTEL_G41_IG,
             "G41", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB, PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG,
@@ -815,11 +818,19 @@ static const struct intel_driver_description {
             "HD Graphics", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB, PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG,
             "HD Graphics", NULL, &intel_i965_driver },
-        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_IG,
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT1_IG,
+            "Sandybridge", NULL, &intel_gen6_driver },
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT2_IG,
+            "Sandybridge", NULL, &intel_gen6_driver },
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT2_PLUS_IG,
+            "Sandybridge", NULL, &intel_gen6_driver },
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT1_IG,
+            "Sandybridge", NULL, &intel_gen6_driver },
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT2_IG,
             "Sandybridge", NULL, &intel_gen6_driver },
-        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_IG,
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT2_PLUS_IG,
             "Sandybridge", NULL, &intel_gen6_driver },
-        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_D0_IG,
+        { PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_IG,
             "Sandybridge", NULL, &intel_gen6_driver },
         { 0, 0, NULL, NULL, NULL }
 };
@@ -1044,6 +1055,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
         ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB),
         ID(PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB),
         ID(PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB),
+        ID(PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_HB),
         { }
 };
 
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index 08d47532e605..d09b1ab7e8ab 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -1,6 +1,8 @@
 /*
  * Common Intel AGPGART and GTT definitions.
  */
+#ifndef _INTEL_AGP_H
+#define _INTEL_AGP_H
 
 /* Intel registers */
 #define INTEL_APSIZE    0xb4
@@ -184,6 +186,8 @@
 #define PCI_DEVICE_ID_INTEL_Q33_IG          0x29D2
 #define PCI_DEVICE_ID_INTEL_B43_HB          0x2E40
 #define PCI_DEVICE_ID_INTEL_B43_IG          0x2E42
+#define PCI_DEVICE_ID_INTEL_B43_1_HB        0x2E90
+#define PCI_DEVICE_ID_INTEL_B43_1_IG        0x2E92
 #define PCI_DEVICE_ID_INTEL_GM45_HB         0x2A40
 #define PCI_DEVICE_ID_INTEL_GM45_IG         0x2A42
 #define PCI_DEVICE_ID_INTEL_EAGLELAKE_HB        0x2E00
@@ -200,11 +204,16 @@
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB          0x0062
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB    0x006a
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG           0x0046
-#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB  0x0100
-#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_IG  0x0102
-#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB  0x0104
-#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_IG  0x0106
-#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_D0_IG  0x0126
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB              0x0100  /* Desktop */
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT1_IG          0x0102
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT2_IG          0x0112
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT2_PLUS_IG     0x0122
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB            0x0104  /* Mobile */
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT1_IG        0x0106
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT2_IG        0x0116
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT2_PLUS_IG   0x0126
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_HB            0x0108  /* Server */
+#define PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_IG            0x010A
 
 /* cover 915 and 945 variants */
 #define IS_I915 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_E7221_HB || \
@@ -231,7 +240,8 @@
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_PINEVIEW_HB)
 
 #define IS_SNB (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB || \
-                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB)
+                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB || \
+                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_HB)
 
 #define IS_G4X (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_EAGLELAKE_HB || \
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \
@@ -244,3 +254,5 @@
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB || \
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB || \
                 IS_SNB)
+
+#endif
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index d22ffb811bf2..75e0a3497888 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -49,6 +49,26 @@ static struct gatt_mask intel_i810_masks[] =
          .type = INTEL_AGP_CACHED_MEMORY}
 };
 
+#define INTEL_AGP_UNCACHED_MEMORY              0
+#define INTEL_AGP_CACHED_MEMORY_LLC            1
+#define INTEL_AGP_CACHED_MEMORY_LLC_GFDT       2
+#define INTEL_AGP_CACHED_MEMORY_LLC_MLC        3
+#define INTEL_AGP_CACHED_MEMORY_LLC_MLC_GFDT   4
+
+static struct gatt_mask intel_gen6_masks[] =
+{
+        {.mask = I810_PTE_VALID | GEN6_PTE_UNCACHED,
+         .type = INTEL_AGP_UNCACHED_MEMORY },
+        {.mask = I810_PTE_VALID | GEN6_PTE_LLC,
+         .type = INTEL_AGP_CACHED_MEMORY_LLC },
+        {.mask = I810_PTE_VALID | GEN6_PTE_LLC | GEN6_PTE_GFDT,
+         .type = INTEL_AGP_CACHED_MEMORY_LLC_GFDT },
+        {.mask = I810_PTE_VALID | GEN6_PTE_LLC_MLC,
+         .type = INTEL_AGP_CACHED_MEMORY_LLC_MLC },
+        {.mask = I810_PTE_VALID | GEN6_PTE_LLC_MLC | GEN6_PTE_GFDT,
+         .type = INTEL_AGP_CACHED_MEMORY_LLC_MLC_GFDT },
+};
+
 static struct _intel_private {
         struct pci_dev *pcidev; /* device one */
         u8 __iomem *registers;
@@ -178,13 +198,6 @@ static void intel_agp_insert_sg_entries(struct agp_memory *mem,
                                         off_t pg_start, int mask_type)
 {
         int i, j;
-        u32 cache_bits = 0;
-
-        if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB ||
-            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB)
-        {
-                cache_bits = GEN6_PTE_LLC_MLC;
-        }
 
         for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
                 writel(agp_bridge->driver->mask_memory(agp_bridge,
@@ -317,6 +330,23 @@ static int intel_i830_type_to_mask_type(struct agp_bridge_data *bridge,
                 return 0;
 }
 
+static int intel_gen6_type_to_mask_type(struct agp_bridge_data *bridge,
+                                        int type)
+{
+        unsigned int type_mask = type & ~AGP_USER_CACHED_MEMORY_GFDT;
+        unsigned int gfdt = type & AGP_USER_CACHED_MEMORY_GFDT;
+
+        if (type_mask == AGP_USER_UNCACHED_MEMORY)
+                return INTEL_AGP_UNCACHED_MEMORY;
+        else if (type_mask == AGP_USER_CACHED_MEMORY_LLC_MLC)
+                return gfdt ? INTEL_AGP_CACHED_MEMORY_LLC_MLC_GFDT :
+                              INTEL_AGP_CACHED_MEMORY_LLC_MLC;
+        else /* set 'normal'/'cached' to LLC by default */
+                return gfdt ? INTEL_AGP_CACHED_MEMORY_LLC_GFDT :
+                              INTEL_AGP_CACHED_MEMORY_LLC;
+}
+
+
 static int intel_i810_insert_entries(struct agp_memory *mem, off_t pg_start,
                                 int type)
 {
@@ -588,8 +618,7 @@ static void intel_i830_init_gtt_entries(void)
                         gtt_entries = 0;
                         break;
                 }
-        } else if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB ||
-                   agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB) {
+        } else if (IS_SNB) {
                 /*
                  * SandyBridge has new memory control reg at 0x50.w
                  */
@@ -1068,11 +1097,11 @@ static void intel_i9xx_setup_flush(void)
                 intel_i915_setup_chipset_flush();
         }
 
-        if (intel_private.ifp_resource.start) {
+        if (intel_private.ifp_resource.start)
                 intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE);
-                if (!intel_private.i9xx_flush_page)
-                        dev_info(&intel_private.pcidev->dev, "can't ioremap flush page - no chipset flushing");
-        }
+        if (!intel_private.i9xx_flush_page)
+                dev_err(&intel_private.pcidev->dev,
+                        "can't ioremap flush page - no chipset flushing\n");
 }
 
 static int intel_i9xx_configure(void)
@@ -1163,7 +1192,7 @@ static int intel_i915_insert_entries(struct agp_memory *mem, off_t pg_start,
 
         mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
 
-        if (mask_type != 0 && mask_type != AGP_PHYS_MEMORY &&
+        if (!IS_SNB && mask_type != 0 && mask_type != AGP_PHYS_MEMORY &&
             mask_type != INTEL_AGP_CACHED_MEMORY)
                 goto out_err;
 
@@ -1333,8 +1362,8 @@ static unsigned long intel_i965_mask_memory(struct agp_bridge_data *bridge,
 static unsigned long intel_gen6_mask_memory(struct agp_bridge_data *bridge,
                                             dma_addr_t addr, int type)
 {
-        /* Shift high bits down */
-        addr |= (addr >> 28) & 0xff;
+        /* gen6 has bit11-4 for physical addr bit39-32 */
+        addr |= (addr >> 28) & 0xff0;
 
         /* Type checking must be done elsewhere */
         return addr | bridge->driver->masks[type].mask;
@@ -1359,6 +1388,7 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
                 break;
         case PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB:
         case PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB:
+        case PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_HB:
                 *gtt_offset = MB(2);
 
                 pci_read_config_word(intel_private.pcidev, SNB_GMCH_CTRL, &snb_gmch_ctl);
@@ -1563,7 +1593,7 @@ static const struct agp_bridge_driver intel_gen6_driver = {
         .fetch_size             = intel_i9xx_fetch_size,
         .cleanup                = intel_i915_cleanup,
         .mask_memory            = intel_gen6_mask_memory,
-        .masks                  = intel_i810_masks,
+        .masks                  = intel_gen6_masks,
         .agp_enable             = intel_i810_agp_enable,
         .cache_flush            = global_cache_flush,
         .create_gatt_table      = intel_i965_create_gatt_table,
@@ -1576,7 +1606,7 @@ static const struct agp_bridge_driver intel_gen6_driver = {
         .agp_alloc_pages        = agp_generic_alloc_pages,
         .agp_destroy_page       = agp_generic_destroy_page,
         .agp_destroy_pages      = agp_generic_destroy_pages,
-        .agp_type_to_mask_type  = intel_i830_type_to_mask_type,
+        .agp_type_to_mask_type  = intel_gen6_type_to_mask_type,
         .chipset_flush          = intel_i915_chipset_flush,
 #ifdef USE_PCI_DMA_API
         .agp_map_page           = intel_agp_map_page,
diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index 1acdb2509511..a3f5e381e746 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -387,7 +387,7 @@ static int n2rng_init_control(struct n2rng *np)
 
 static int n2rng_data_read(struct hwrng *rng, u32 *data)
 {
-        struct n2rng *np = rng->priv;
+        struct n2rng *np = (struct n2rng *) rng->priv;
         unsigned long ra = __pa(&np->test_data);
         int len;
 
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 3822b4f49c84..7bd7c45b53ef 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -305,6 +305,9 @@ static int num_force_kipmid;
 #ifdef CONFIG_PCI
 static int pci_registered;
 #endif
+#ifdef CONFIG_ACPI
+static int pnp_registered;
+#endif
 #ifdef CONFIG_PPC_OF
 static int of_registered;
 #endif
@@ -2126,7 +2129,7 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
 {
         struct acpi_device *acpi_dev;
         struct smi_info *info;
-        struct resource *res;
+        struct resource *res, *res_second;
         acpi_handle handle;
         acpi_status status;
         unsigned long long tmp;
@@ -2182,13 +2185,13 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
         info->io.addr_data = res->start;
 
         info->io.regspacing = DEFAULT_REGSPACING;
-        res = pnp_get_resource(dev,
+        res_second = pnp_get_resource(dev,
                                (info->io.addr_type == IPMI_IO_ADDR_SPACE) ?
                                         IORESOURCE_IO : IORESOURCE_MEM,
                                1);
-        if (res) {
-                if (res->start > info->io.addr_data)
-                        info->io.regspacing = res->start - info->io.addr_data;
+        if (res_second) {
+                if (res_second->start > info->io.addr_data)
+                        info->io.regspacing = res_second->start - info->io.addr_data;
         }
         info->io.regsize = DEFAULT_REGSPACING;
         info->io.regshift = 0;
@@ -3359,6 +3362,7 @@ static __devinit int init_ipmi_si(void)
 
 #ifdef CONFIG_ACPI
         pnp_register_driver(&ipmi_pnp_driver);
+        pnp_registered = 1;
 #endif
 
 #ifdef CONFIG_DMI
@@ -3526,7 +3530,8 @@ static __exit void cleanup_ipmi_si(void)
                 pci_unregister_driver(&ipmi_pci_driver);
 #endif
 #ifdef CONFIG_ACPI
-        pnp_unregister_driver(&ipmi_pnp_driver);
+        if (pnp_registered)
+                pnp_unregister_driver(&ipmi_pnp_driver);
 #endif
 
 #ifdef CONFIG_PPC_OF
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index a398ecdbd758..1f528fad3516 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -788,10 +788,11 @@ static const struct file_operations zero_fops = {
 /*
  * capabilities for /dev/zero
  * - permits private mappings, "copies" are taken of the source of zeros
+ * - no writeback happens
  */
 static struct backing_dev_info zero_bdi = {
         .name           = "char/mem",
-        .capabilities   = BDI_CAP_MAP_COPY,
+        .capabilities   = BDI_CAP_MAP_COPY | BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 
 static const struct file_operations full_fops = {
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 949067a0bd47..613c852ee0fe 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -355,7 +355,7 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line)
                 if (*stp == '\0')
                         stp = NULL;
 
-                if (tty_line >= 0 && tty_line <= p->num && p->ops &&
+                if (tty_line >= 0 && tty_line < p->num && p->ops &&
                     p->ops->poll_init && !p->ops->poll_init(p, tty_line, stp)) {
                         res = tty_driver_kref_get(p);
                         *line = tty_line;
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 942a9826bd23..c810481a5bc2 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -596,6 +596,10 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
         ssize_t ret;
         bool nonblock;
 
+        /* Userspace could be out to fool us */
+        if (!count)
+                return 0;
+
         port = filp->private_data;
 
         nonblock = filp->f_flags & O_NONBLOCK;
@@ -642,7 +646,7 @@ static unsigned int port_fops_poll(struct file *filp, poll_table *wait)
         poll_wait(filp, &port->waitqueue, wait);
 
         ret = 0;
-        if (port->inbuf)
+        if (!will_read_block(port))
                 ret |= POLLIN | POLLRDNORM;
         if (!will_write_block(port))
                 ret |= POLLOUT;
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 50590c7f2c01..281aada7b4a1 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -906,22 +906,16 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
                          * bottom of buffer
                          */
                         old_origin += (old_rows - new_rows) * old_row_size;
-                        end = vc->vc_scr_end;
                 } else {
                         /*
                          * Cursor is in no man's land, copy 1/2 screenful
                          * from the top and bottom of cursor position
                          */
                         old_origin += (vc->vc_y - new_rows/2) * old_row_size;
-                        end = old_origin + (old_row_size * new_rows);
                 }
-        } else
-                /*
-                 * Cursor near the top, copy contents from the top of buffer
-                 */
-                end = (old_rows > new_rows) ? old_origin +
-                        (old_row_size * new_rows) :
-                        vc->vc_scr_end;
+        }
+
+        end = old_origin + old_row_size * min(old_rows, new_rows);
 
         update_attr(vc);
 
@@ -3075,8 +3069,7 @@ static int bind_con_driver(const struct consw *csw, int first, int last,
 
                 old_was_color = vc->vc_can_do_color;
                 vc->vc_sw->con_deinit(vc);
-                if (!vc->vc_origin)
-                        vc->vc_origin = (unsigned long)vc->vc_screenbuf;
+                vc->vc_origin = (unsigned long)vc->vc_screenbuf;
                 visual_init(vc, i, 0);
                 set_origin(vc);
                 update_attr(vc);
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 2bbeaaea46e9..38df8c19e74c 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -533,11 +533,14 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
         case KIOCSOUND:
                 if (!perm)
                         goto eperm;
-                /* FIXME: This is an old broken API but we need to keep it
-                   supported and somehow separate the historic advertised
-                   tick rate from any real one */
+                /*
+                 * The use of PIT_TICK_RATE is historic, it used to be
+                 * the platform-dependent CLOCK_TICK_RATE between 2.6.12
+                 * and 2.6.36, which was a minor but unfortunate ABI
+                 * change.
+                 */
                 if (arg)
-                        arg = CLOCK_TICK_RATE / arg;
+                        arg = PIT_TICK_RATE / arg;
                 kd_mksound(arg, 0);
                 break;
 
@@ -553,11 +556,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
                  */
                 ticks = HZ * ((arg >> 16) & 0xffff) / 1000;
                 count = ticks ? (arg & 0xffff) : 0;
-                /* FIXME: This is an old broken API but we need to keep it
-                   supported and somehow separate the historic advertised
-                   tick rate from any real one */
                 if (count)
-                        count = CLOCK_TICK_RATE / count;
+                        count = PIT_TICK_RATE / count;
                 kd_mksound(count, ticks);
                 break;
         }
diff --git a/drivers/dca/dca-core.c b/drivers/dca/dca-core.c
index 8661c84a105d..b98c67664ae7 100644
--- a/drivers/dca/dca-core.c
+++ b/drivers/dca/dca-core.c
@@ -39,6 +39,10 @@ static DEFINE_SPINLOCK(dca_lock);
 
 static LIST_HEAD(dca_domains);
 
+static BLOCKING_NOTIFIER_HEAD(dca_provider_chain);
+
+static int dca_providers_blocked;
+
 static struct pci_bus *dca_pci_rc_from_dev(struct device *dev)
 {
         struct pci_dev *pdev = to_pci_dev(dev);
@@ -70,6 +74,60 @@ static void dca_free_domain(struct dca_domain *domain)
         kfree(domain);
 }
 
+static int dca_provider_ioat_ver_3_0(struct device *dev)
+{
+        struct pci_dev *pdev = to_pci_dev(dev);
+
+        return ((pdev->vendor == PCI_VENDOR_ID_INTEL) &&
+                ((pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG0) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG1) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG2) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG3) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG4) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG5) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG6) ||
+                (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG7)));
+}
+
+static void unregister_dca_providers(void)
+{
+        struct dca_provider *dca, *_dca;
+        struct list_head unregistered_providers;
+        struct dca_domain *domain;
+        unsigned long flags;
+
+        blocking_notifier_call_chain(&dca_provider_chain,
+                                     DCA_PROVIDER_REMOVE, NULL);
+
+        INIT_LIST_HEAD(&unregistered_providers);
+
+        spin_lock_irqsave(&dca_lock, flags);
+
+        if (list_empty(&dca_domains)) {
+                spin_unlock_irqrestore(&dca_lock, flags);
+                return;
+        }
+
+        /* at this point only one domain in the list is expected */
+        domain = list_first_entry(&dca_domains, struct dca_domain, node);
+        if (!domain)
+                return;
+
+        list_for_each_entry_safe(dca, _dca, &domain->dca_providers, node) {
+                list_del(&dca->node);
+                list_add(&dca->node, &unregistered_providers);
+        }
+
+        dca_free_domain(domain);
+
+        spin_unlock_irqrestore(&dca_lock, flags);
+
+        list_for_each_entry_safe(dca, _dca, &unregistered_providers, node) {
+                dca_sysfs_remove_provider(dca);
+                list_del(&dca->node);
+        }
+}
+
 static struct dca_domain *dca_find_domain(struct pci_bus *rc)
 {
         struct dca_domain *domain;
@@ -90,9 +148,13 @@ static struct dca_domain *dca_get_domain(struct device *dev)
         domain = dca_find_domain(rc);
 
         if (!domain) {
-                domain = dca_allocate_domain(rc);
-                if (domain)
-                        list_add(&domain->node, &dca_domains);
+                if (dca_provider_ioat_ver_3_0(dev) && !list_empty(&dca_domains)) {
+                        dca_providers_blocked = 1;
+                } else {
+                        domain = dca_allocate_domain(rc);
+                        if (domain)
+                                list_add(&domain->node, &dca_domains);
+                }
         }
 
         return domain;
@@ -293,8 +355,6 @@ void free_dca_provider(struct dca_provider *dca)
 }
 EXPORT_SYMBOL_GPL(free_dca_provider);
 
-static BLOCKING_NOTIFIER_HEAD(dca_provider_chain);
-
 /**
  * register_dca_provider - register a dca provider
  * @dca - struct created by alloc_dca_provider()
@@ -306,6 +366,13 @@ int register_dca_provider(struct dca_provider *dca, struct device *dev)
         unsigned long flags;
         struct dca_domain *domain;
 
+        spin_lock_irqsave(&dca_lock, flags);
+        if (dca_providers_blocked) {
+                spin_unlock_irqrestore(&dca_lock, flags);
+                return -ENODEV;
+        }
+        spin_unlock_irqrestore(&dca_lock, flags);
+
         err = dca_sysfs_add_provider(dca, dev);
         if (err)
                 return err;
@@ -313,7 +380,13 @@ int register_dca_provider(struct dca_provider *dca, struct device *dev)
         spin_lock_irqsave(&dca_lock, flags);
         domain = dca_get_domain(dev);
         if (!domain) {
-                spin_unlock_irqrestore(&dca_lock, flags);
+                if (dca_providers_blocked) {
+                        spin_unlock_irqrestore(&dca_lock, flags);
+                        dca_sysfs_remove_provider(dca);
+                        unregister_dca_providers();
+                } else {
+                        spin_unlock_irqrestore(&dca_lock, flags);
+                }
                 return -ENODEV;
         }
         list_add(&dca->node, &domain->dca_providers);
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 86c5ae9fde34..411d5bf50fc4 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -162,7 +162,7 @@ static int mv_is_err_intr(u32 intr_cause)
 
 static void mv_xor_device_clear_eoc_cause(struct mv_xor_chan *chan)
 {
-        u32 val = (1 << (1 + (chan->idx * 16)));
+        u32 val = ~(1 << (chan->idx * 16));
         dev_dbg(chan->device->common.dev, "%s, val 0x%08x\n", __func__, val);
         __raw_writel(val, XOR_INTR_CAUSE(chan));
 }
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 3630308e7b81..6b21e25f7a84 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -339,6 +339,9 @@ static void edac_mc_workq_teardown(struct mem_ctl_info *mci)
 {
         int status;
 
+        if (mci->op_state != OP_RUNNING_POLL)
+                return;
+
         status = cancel_delayed_work(&mci->work);
         if (status == 0) {
                 debugf0("%s() not canceled, flush the queue\n",
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index be29b0bb2471..1b05896648bc 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -263,6 +263,7 @@ static const struct {
         {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, QUIRK_NO_MSI},
         {PCI_VENDOR_ID_NEC,     PCI_ANY_ID,     QUIRK_CYCLE_TIMER},
         {PCI_VENDOR_ID_VIA,     PCI_ANY_ID,     QUIRK_CYCLE_TIMER},
+        {PCI_VENDOR_ID_RICOH,   PCI_ANY_ID,     QUIRK_CYCLE_TIMER},
         {PCI_VENDOR_ID_APPLE,   PCI_DEVICE_ID_APPLE_UNI_N_FW, QUIRK_BE_HEADERS},
 };
 
diff --git a/drivers/gpio/sx150x.c b/drivers/gpio/sx150x.c
index b42f42ca70c3..823559ab0e24 100644
--- a/drivers/gpio/sx150x.c
+++ b/drivers/gpio/sx150x.c
@@ -459,17 +459,33 @@ static int sx150x_init_io(struct sx150x_chip *chip, u8 base, u16 cfg)
         return err;
 }
 
-static int sx150x_init_hw(struct sx150x_chip *chip,
-                        struct sx150x_platform_data *pdata)
+static int sx150x_reset(struct sx150x_chip *chip)
 {
-        int err = 0;
+        int err;
 
-        err = i2c_smbus_write_word_data(chip->client,
+        err = i2c_smbus_write_byte_data(chip->client,
                                         chip->dev_cfg->reg_reset,
-                                        0x3412);
+                                        0x12);
         if (err < 0)
                 return err;
 
+        err = i2c_smbus_write_byte_data(chip->client,
+                                        chip->dev_cfg->reg_reset,
+                                        0x34);
+        return err;
+}
+
+static int sx150x_init_hw(struct sx150x_chip *chip,
+                        struct sx150x_platform_data *pdata)
+{
+        int err = 0;
+
+        if (pdata->reset_during_probe) {
+                err = sx150x_reset(chip);
+                if (err < 0)
+                        return err;
+        }
+
         err = sx150x_i2c_write(chip->client,
                         chip->dev_cfg->reg_misc,
                         0x01);
diff --git a/drivers/gpu/drm/drm_buffer.c b/drivers/gpu/drm/drm_buffer.c
index 55d03ed05000..529a0dbe9fc6 100644
--- a/drivers/gpu/drm/drm_buffer.c
+++ b/drivers/gpu/drm/drm_buffer.c
@@ -98,8 +98,8 @@ EXPORT_SYMBOL(drm_buffer_alloc);
  *   user_data: A pointer the data that is copied to the buffer.
  *   size: The Number of bytes to copy.
  */
-extern int drm_buffer_copy_from_user(struct drm_buffer *buf,
-                void __user *user_data, int size)
+int drm_buffer_copy_from_user(struct drm_buffer *buf,
+                              void __user *user_data, int size)
 {
         int nr_pages = size / PAGE_SIZE + 1;
         int idx;
@@ -163,7 +163,7 @@ void *drm_buffer_read_object(struct drm_buffer *buf,
 {
         int idx = drm_buffer_index(buf);
         int page = drm_buffer_page(buf);
-        void *obj = 0;
+        void *obj = NULL;
 
         if (idx + objsize <= PAGE_SIZE) {
                 obj = &buf->data[page][idx];
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 7e31d4348340..dcbeb98f195a 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -34,6 +34,9 @@
 #include "drm_crtc_helper.h"
 #include "drm_fb_helper.h"
 
+static bool drm_kms_helper_poll = true;
+module_param_named(poll, drm_kms_helper_poll, bool, 0600);
+
 static void drm_mode_validate_flag(struct drm_connector *connector,
                                    int flags)
 {
@@ -99,8 +102,10 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
                         connector->status = connector_status_disconnected;
                 if (connector->funcs->force)
                         connector->funcs->force(connector);
-        } else
-                connector->status = connector->funcs->detect(connector);
+        } else {
+                connector->status = connector->funcs->detect(connector, true);
+                drm_kms_helper_poll_enable(dev);
+        }
 
         if (connector->status == connector_status_disconnected) {
                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
@@ -110,11 +115,10 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
         }
 
         count = (*connector_funcs->get_modes)(connector);
-        if (!count) {
+        if (count == 0 && connector->status == connector_status_connected)
                 count = drm_add_modes_noedid(connector, 1024, 768);
-                if (!count)
-                        return 0;
-        }
+        if (count == 0)
+                goto prune;
 
         drm_mode_connector_list_update(connector);
 
@@ -633,13 +637,13 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                 mode_changed = true;
 
         if (mode_changed) {
-                old_fb = set->crtc->fb;
-                set->crtc->fb = set->fb;
                 set->crtc->enabled = (set->mode != NULL);
                 if (set->mode != NULL) {
                         DRM_DEBUG_KMS("attempting to set mode from"
                                         " userspace\n");
                         drm_mode_debug_printmodeline(set->mode);
+                        old_fb = set->crtc->fb;
+                        set->crtc->fb = set->fb;
                         if (!drm_crtc_helper_set_mode(set->crtc, set->mode,
                                                       set->x, set->y,
                                                       old_fb)) {
@@ -840,6 +844,9 @@ static void output_poll_execute(struct work_struct *work)
         enum drm_connector_status old_status, status;
         bool repoll = false, changed = false;
 
+        if (!drm_kms_helper_poll)
+                return;
+
         mutex_lock(&dev->mode_config.mutex);
         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 
@@ -859,7 +866,7 @@ static void output_poll_execute(struct work_struct *work)
                     !(connector->polled & DRM_CONNECTOR_POLL_HPD))
                         continue;
 
-                status = connector->funcs->detect(connector);
+                status = connector->funcs->detect(connector, false);
                 if (old_status != status)
                         changed = true;
         }
@@ -890,6 +897,9 @@ void drm_kms_helper_poll_enable(struct drm_device *dev)
         bool poll = false;
         struct drm_connector *connector;
 
+        if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
+                return;
+
         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                 if (connector->polled)
                         poll = true;
@@ -919,8 +929,10 @@ void drm_helper_hpd_irq_event(struct drm_device *dev)
 {
         if (!dev->mode_config.poll_enabled)
                 return;
+
         /* kill timer and schedule immediate execution, this doesn't block */
         cancel_delayed_work(&dev->mode_config.output_poll_work);
-        queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, 0);
+        if (drm_kms_helper_poll)
+                queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, 0);
 }
 EXPORT_SYMBOL(drm_helper_hpd_irq_event);
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index e20f78b542a7..f5bd9e590c80 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -164,6 +164,8 @@ int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
         dev->hose = pdev->sysdata;
 #endif
 
+        mutex_lock(&drm_global_mutex);
+
         if ((ret = drm_fill_in_dev(dev, ent, driver))) {
                 printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
                 goto err_g2;
@@ -199,6 +201,7 @@ int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
                  driver->name, driver->major, driver->minor, driver->patchlevel,
                  driver->date, pci_name(pdev), dev->primary->index);
 
+        mutex_unlock(&drm_global_mutex);
         return 0;
 
 err_g4:
@@ -210,6 +213,7 @@ err_g2:
         pci_disable_device(pdev);
 err_g1:
         kfree(dev);
+        mutex_unlock(&drm_global_mutex);
         return ret;
 }
 EXPORT_SYMBOL(drm_get_pci_dev);
diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c
index 460e9a3afa8d..92d1d0fb7b75 100644
--- a/drivers/gpu/drm/drm_platform.c
+++ b/drivers/gpu/drm/drm_platform.c
@@ -53,6 +53,8 @@ int drm_get_platform_dev(struct platform_device *platdev,
         dev->platformdev = platdev;
         dev->dev = &platdev->dev;
 
+        mutex_lock(&drm_global_mutex);
+
         ret = drm_fill_in_dev(dev, NULL, driver);
 
         if (ret) {
@@ -87,6 +89,8 @@ int drm_get_platform_dev(struct platform_device *platdev,
 
         list_add_tail(&dev->driver_item, &driver->device_list);
 
+        mutex_unlock(&drm_global_mutex);
+
         DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
                  driver->name, driver->major, driver->minor, driver->patchlevel,
                  driver->date, dev->primary->index);
@@ -100,6 +104,7 @@ err_g2:
                 drm_put_minor(&dev->control);
 err_g1:
         kfree(dev);
+        mutex_unlock(&drm_global_mutex);
         return ret;
 }
 EXPORT_SYMBOL(drm_get_platform_dev);
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 86118a742231..85da4c40694c 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -159,7 +159,7 @@ static ssize_t status_show(struct device *device,
         struct drm_connector *connector = to_drm_connector(device);
         enum drm_connector_status status;
 
-        status = connector->funcs->detect(connector);
+        status = connector->funcs->detect(connector, true);
         return snprintf(buf, PAGE_SIZE, "%s\n",
                         drm_get_connector_status_name(status));
 }
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 92d5605a34d1..5e43d7076789 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -31,6 +31,7 @@
 #include <linux/slab.h>
 #include "drmP.h"
 #include "drm.h"
+#include "intel_drv.h"
 #include "i915_drm.h"
 #include "i915_drv.h"
 
@@ -121,6 +122,54 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
         return 0;
 }
 
+static int i915_gem_pageflip_info(struct seq_file *m, void *data)
+{
+        struct drm_info_node *node = (struct drm_info_node *) m->private;
+        struct drm_device *dev = node->minor->dev;
+        unsigned long flags;
+        struct intel_crtc *crtc;
+
+        list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
+                const char *pipe = crtc->pipe ? "B" : "A";
+                const char *plane = crtc->plane ? "B" : "A";
+                struct intel_unpin_work *work;
+
+                spin_lock_irqsave(&dev->event_lock, flags);
+                work = crtc->unpin_work;
+                if (work == NULL) {
+                        seq_printf(m, "No flip due on pipe %s (plane %s)\n",
+                                   pipe, plane);
+                } else {
+                        if (!work->pending) {
+                                seq_printf(m, "Flip queued on pipe %s (plane %s)\n",
+                                           pipe, plane);
+                        } else {
+                                seq_printf(m, "Flip pending (waiting for vsync) on pipe %s (plane %s)\n",
+                                           pipe, plane);
+                        }
+                        if (work->enable_stall_check)
+                                seq_printf(m, "Stall check enabled, ");
+                        else
+                                seq_printf(m, "Stall check waiting for page flip ioctl, ");
+                        seq_printf(m, "%d prepares\n", work->pending);
+
+                        if (work->old_fb_obj) {
+                                struct drm_i915_gem_object *obj_priv = to_intel_bo(work->old_fb_obj);
+                                if(obj_priv)
+                                        seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj_priv->gtt_offset );
+                        }
+                        if (work->pending_flip_obj) {
+                                struct drm_i915_gem_object *obj_priv = to_intel_bo(work->pending_flip_obj);
+                                if(obj_priv)
+                                        seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj_priv->gtt_offset );
+                        }
+                }
+                spin_unlock_irqrestore(&dev->event_lock, flags);
+        }
+
+        return 0;
+}
+
 static int i915_gem_request_info(struct seq_file *m, void *data)
 {
         struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -777,6 +826,7 @@ static struct drm_info_list i915_debugfs_list[] = {
         {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
         {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
         {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
+        {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
         {"i915_gem_request", i915_gem_request_info, 0},
         {"i915_gem_seqno", i915_gem_seqno_info, 0},
         {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index a7ec93e62f81..9d67b4853030 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -620,8 +620,10 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
                 ret = copy_from_user(cliprects, batch->cliprects,
                                      batch->num_cliprects *
                                      sizeof(struct drm_clip_rect));
-                if (ret != 0)
+                if (ret != 0) {
+                        ret = -EFAULT;
                         goto fail_free;
+                }
         }
 
         mutex_lock(&dev->struct_mutex);
@@ -662,8 +664,10 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
                 return -ENOMEM;
 
         ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
-        if (ret != 0)
+        if (ret != 0) {
+                ret = -EFAULT;
                 goto fail_batch_free;
+        }
 
         if (cmdbuf->num_cliprects) {
                 cliprects = kcalloc(cmdbuf->num_cliprects,
@@ -676,8 +680,10 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
                 ret = copy_from_user(cliprects, cmdbuf->cliprects,
                                      cmdbuf->num_cliprects *
                                      sizeof(struct drm_clip_rect));
-                if (ret != 0)
+                if (ret != 0) {
+                        ret = -EFAULT;
                         goto fail_clip_free;
+                }
         }
 
         mutex_lock(&dev->struct_mutex);
@@ -885,7 +891,7 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
         int reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
         u32 temp_lo, temp_hi = 0;
         u64 mchbar_addr;
-        int ret = 0;
+        int ret;
 
         if (IS_I965G(dev))
                 pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
@@ -895,22 +901,23 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
         /* If ACPI doesn't have it, assume we need to allocate it ourselves */
 #ifdef CONFIG_PNP
         if (mchbar_addr &&
-            pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) {
-                ret = 0;
-                goto out;
-        }
+            pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
+                return 0;
 #endif
 
         /* Get some space for it */
-        ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus, &dev_priv->mch_res,
+        dev_priv->mch_res.name = "i915 MCHBAR";
+        dev_priv->mch_res.flags = IORESOURCE_MEM;
+        ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus,
+                                     &dev_priv->mch_res,
                                      MCHBAR_SIZE, MCHBAR_SIZE,
                                      PCIBIOS_MIN_MEM,
-                                     0,   pcibios_align_resource,
+                                     0, pcibios_align_resource,
                                      dev_priv->bridge_dev);
         if (ret) {
                 DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
                 dev_priv->mch_res.start = 0;
-                goto out;
+                return ret;
         }
 
         if (IS_I965G(dev))
@@ -919,8 +926,7 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
 
         pci_write_config_dword(dev_priv->bridge_dev, reg,
                                lower_32_bits(dev_priv->mch_res.start));
-out:
-        return ret;
+        return 0;
 }
 
 /* Setup MCHBAR if possible, return true if we should disable it again */
@@ -2082,6 +2088,10 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                 goto free_priv;
         }
 
+        /* overlay on gen2 is broken and can't address above 1G */
+        if (IS_GEN2(dev))
+                dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(30));
+
         dev_priv->regs = ioremap(base, size);
         if (!dev_priv->regs) {
                 DRM_ERROR("failed to map registers\n");
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 00befce8fbb7..6dbe14cc4f74 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -61,91 +61,86 @@ extern int intel_agp_enabled;
         .driver_data = (unsigned long) info }
 
 static const struct intel_device_info intel_i830_info = {
-        .is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
+        .gen = 2, .is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
 };
 
 static const struct intel_device_info intel_845g_info = {
-        .is_i8xx = 1,
+        .gen = 2, .is_i8xx = 1,
 };
 
 static const struct intel_device_info intel_i85x_info = {
-        .is_i8xx = 1, .is_i85x = 1, .is_mobile = 1,
+        .gen = 2, .is_i8xx = 1, .is_i85x = 1, .is_mobile = 1,
         .cursor_needs_physical = 1,
 };
 
 static const struct intel_device_info intel_i865g_info = {
-        .is_i8xx = 1,
+        .gen = 2, .is_i8xx = 1,
 };
 
 static const struct intel_device_info intel_i915g_info = {
-        .is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
+        .gen = 3, .is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
 };
 static const struct intel_device_info intel_i915gm_info = {
-        .is_i9xx = 1,  .is_mobile = 1,
+        .gen = 3, .is_i9xx = 1,  .is_mobile = 1,
         .cursor_needs_physical = 1,
 };
 static const struct intel_device_info intel_i945g_info = {
-        .is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
+        .gen = 3, .is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
 };
 static const struct intel_device_info intel_i945gm_info = {
-        .is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1,
+        .gen = 3, .is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1,
         .has_hotplug = 1, .cursor_needs_physical = 1,
 };
 
 static const struct intel_device_info intel_i965g_info = {
-        .is_broadwater = 1, .is_i965g = 1, .is_i9xx = 1, .has_hotplug = 1,
+        .gen = 4, .is_broadwater = 1, .is_i965g = 1, .is_i9xx = 1,
+        .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_i965gm_info = {
-        .is_crestline = 1, .is_i965g = 1, .is_i965gm = 1, .is_i9xx = 1,
-        .is_mobile = 1, .has_fbc = 1, .has_rc6 = 1,
-        .has_hotplug = 1,
+        .gen = 4, .is_crestline = 1, .is_i965g = 1, .is_i965gm = 1, .is_i9xx = 1,
+        .is_mobile = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_g33_info = {
-        .is_g33 = 1, .is_i9xx = 1, .need_gfx_hws = 1,
-        .has_hotplug = 1,
+        .gen = 3, .is_g33 = 1, .is_i9xx = 1,
+        .need_gfx_hws = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_g45_info = {
-        .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1, .need_gfx_hws = 1,
-        .has_pipe_cxsr = 1,
-        .has_hotplug = 1,
+        .gen = 4, .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1, .need_gfx_hws = 1,
+        .has_pipe_cxsr = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_gm45_info = {
-        .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1,
+        .gen = 4, .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1,
         .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
-        .has_pipe_cxsr = 1,
-        .has_hotplug = 1,
+        .has_pipe_cxsr = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_pineview_info = {
-        .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .is_i9xx = 1,
-        .need_gfx_hws = 1,
-        .has_hotplug = 1,
+        .gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .is_i9xx = 1,
+        .need_gfx_hws = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_ironlake_d_info = {
-        .is_ironlake = 1, .is_i965g = 1, .is_i9xx = 1, .need_gfx_hws = 1,
-        .has_pipe_cxsr = 1,
-        .has_hotplug = 1,
+        .gen = 5, .is_ironlake = 1, .is_i965g = 1, .is_i9xx = 1,
+        .need_gfx_hws = 1, .has_pipe_cxsr = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_ironlake_m_info = {
-        .is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
-        .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
-        .has_hotplug = 1,
+        .gen = 5, .is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
+        .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_sandybridge_d_info = {
-        .is_i965g = 1, .is_i9xx = 1, .need_gfx_hws = 1,
-        .has_hotplug = 1, .is_gen6 = 1,
+        .gen = 6, .is_i965g = 1, .is_i9xx = 1,
+        .need_gfx_hws = 1, .has_hotplug = 1,
 };
 
 static const struct intel_device_info intel_sandybridge_m_info = {
-        .is_i965g = 1, .is_mobile = 1, .is_i9xx = 1, .need_gfx_hws = 1,
-        .has_hotplug = 1, .is_gen6 = 1,
+        .gen = 6, .is_i965g = 1, .is_mobile = 1, .is_i9xx = 1,
+        .need_gfx_hws = 1, .has_hotplug = 1,
 };
 
 static const struct pci_device_id pciidlist[] = {               /* aka */
@@ -175,13 +170,18 @@ static const struct pci_device_id pciidlist[] = {		/* aka */
         INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),              /* G45_G */
         INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),              /* G41_G */
         INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),              /* B43_G */
+        INTEL_VGA_DEVICE(0x2e92, &intel_g45_info),              /* B43_G.1 */
         INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
         INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
         INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
         INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
         INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
+        INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
+        INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
         INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
+        INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
         INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
+        INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
         {0, 0, 0}
 };
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 047cd7ce7e1b..af4a263cf257 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -191,6 +191,7 @@ struct drm_i915_display_funcs {
 };
 
 struct intel_device_info {
+        u8 gen;
         u8 is_mobile : 1;
         u8 is_i8xx : 1;
         u8 is_i85x : 1;
@@ -206,7 +207,6 @@ struct intel_device_info {
         u8 is_broadwater : 1;
         u8 is_crestline : 1;
         u8 is_ironlake : 1;
-        u8 is_gen6 : 1;
         u8 has_fbc : 1;
         u8 has_rc6 : 1;
         u8 has_pipe_cxsr : 1;
@@ -1162,7 +1162,6 @@ extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_ove
 #define IS_845G(dev)            ((dev)->pci_device == 0x2562)
 #define IS_I85X(dev)            (INTEL_INFO(dev)->is_i85x)
 #define IS_I865G(dev)           ((dev)->pci_device == 0x2572)
-#define IS_GEN2(dev)            (INTEL_INFO(dev)->is_i8xx)
 #define IS_I915G(dev)           (INTEL_INFO(dev)->is_i915g)
 #define IS_I915GM(dev)          ((dev)->pci_device == 0x2592)
 #define IS_I945G(dev)           ((dev)->pci_device == 0x2772)
@@ -1181,27 +1180,13 @@ extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_ove
 #define IS_IRONLAKE_M(dev)      ((dev)->pci_device == 0x0046)
 #define IS_IRONLAKE(dev)        (INTEL_INFO(dev)->is_ironlake)
 #define IS_I9XX(dev)            (INTEL_INFO(dev)->is_i9xx)
-#define IS_GEN6(dev)            (INTEL_INFO(dev)->is_gen6)
 #define IS_MOBILE(dev)          (INTEL_INFO(dev)->is_mobile)
 
-#define IS_GEN3(dev)    (IS_I915G(dev) ||                       \
-                         IS_I915GM(dev) ||                      \
-                         IS_I945G(dev) ||                       \
-                         IS_I945GM(dev) ||                      \
-                         IS_G33(dev) || \
-                         IS_PINEVIEW(dev))
-#define IS_GEN4(dev)    ((dev)->pci_device == 0x2972 ||         \
-                         (dev)->pci_device == 0x2982 ||         \
-                         (dev)->pci_device == 0x2992 ||         \
-                         (dev)->pci_device == 0x29A2 ||         \
-                         (dev)->pci_device == 0x2A02 ||         \
-                         (dev)->pci_device == 0x2A12 ||         \
-                         (dev)->pci_device == 0x2E02 ||         \
-                         (dev)->pci_device == 0x2E12 ||         \
-                         (dev)->pci_device == 0x2E22 ||         \
-                         (dev)->pci_device == 0x2E32 ||         \
-                         (dev)->pci_device == 0x2A42 ||         \
-                         (dev)->pci_device == 0x2E42)
+#define IS_GEN2(dev)    (INTEL_INFO(dev)->gen == 2)
+#define IS_GEN3(dev)    (INTEL_INFO(dev)->gen == 3)
+#define IS_GEN4(dev)    (INTEL_INFO(dev)->gen == 4)
+#define IS_GEN5(dev)    (INTEL_INFO(dev)->gen == 5)
+#define IS_GEN6(dev)    (INTEL_INFO(dev)->gen == 6)
 
 #define HAS_BSD(dev)            (IS_IRONLAKE(dev) || IS_G4X(dev))
 #define I915_NEED_GFX_HWS(dev)  (INTEL_INFO(dev)->need_gfx_hws)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index df5a7135c261..bced9b25c71e 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -34,6 +34,7 @@
 #include <linux/slab.h>
 #include <linux/swap.h>
 #include <linux/pci.h>
+#include <linux/intel-gtt.h>
 
 static uint32_t i915_gem_get_gtt_alignment(struct drm_gem_object *obj);
 static int i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj);
@@ -135,12 +136,15 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data,
                 return -ENOMEM;
 
         ret = drm_gem_handle_create(file_priv, obj, &handle);
-        drm_gem_object_unreference_unlocked(obj);
-        if (ret)
+        if (ret) {
+                drm_gem_object_unreference_unlocked(obj);
                 return ret;
+        }
 
-        args->handle = handle;
+        /* Sink the floating reference from kref_init(handlecount) */
+        drm_gem_object_handle_unreference_unlocked(obj);
 
+        args->handle = handle;
         return 0;
 }
 
@@ -2347,14 +2351,21 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj)
 
         reg->obj = obj;
 
-        if (IS_GEN6(dev))
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
                 sandybridge_write_fence_reg(reg);
-        else if (IS_I965G(dev))
+                break;
+        case 5:
+        case 4:
                 i965_write_fence_reg(reg);
-        else if (IS_I9XX(dev))
+                break;
+        case 3:
                 i915_write_fence_reg(reg);
-        else
+                break;
+        case 2:
                 i830_write_fence_reg(reg);
+                break;
+        }
 
         trace_i915_gem_object_get_fence(obj, obj_priv->fence_reg,
                         obj_priv->tiling_mode);
@@ -2377,22 +2388,26 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
         struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
         struct drm_i915_fence_reg *reg =
                 &dev_priv->fence_regs[obj_priv->fence_reg];
+        uint32_t fence_reg;
 
-        if (IS_GEN6(dev)) {
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
                 I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 +
                              (obj_priv->fence_reg * 8), 0);
-        } else if (IS_I965G(dev)) {
+                break;
+        case 5:
+        case 4:
                 I915_WRITE64(FENCE_REG_965_0 + (obj_priv->fence_reg * 8), 0);
-        } else {
-                uint32_t fence_reg;
-
-                if (obj_priv->fence_reg < 8)
-                        fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
+                break;
+        case 3:
+                if (obj_priv->fence_reg >= 8)
+                        fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg - 8) * 4;
                 else
-                        fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg -
-                                                       8) * 4;
+        case 2:
+                        fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
 
                 I915_WRITE(fence_reg, 0);
+                break;
         }
 
         reg->obj = NULL;
@@ -3585,6 +3600,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
                 if (ret != 0) {
                         DRM_ERROR("copy %d cliprects failed: %d\n",
                                   args->num_cliprects, ret);
+                        ret = -EFAULT;
                         goto pre_mutex_err;
                 }
         }
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 72cae3cccad8..e85246ef691c 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -79,6 +79,7 @@ mark_free(struct drm_i915_gem_object *obj_priv,
            struct list_head *unwind)
 {
         list_add(&obj_priv->evict_list, unwind);
+        drm_gem_object_reference(&obj_priv->base);
         return drm_mm_scan_add_block(obj_priv->gtt_space);
 }
 
@@ -165,6 +166,7 @@ i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignmen
         list_for_each_entry(obj_priv, &unwind_list, evict_list) {
                 ret = drm_mm_scan_remove_block(obj_priv->gtt_space);
                 BUG_ON(ret);
+                drm_gem_object_unreference(&obj_priv->base);
         }
 
         /* We expect the caller to unpin, evict all and try again, or give up.
@@ -181,18 +183,21 @@ found:
                          * scanning, therefore store to be evicted objects on a
                          * temporary list. */
                         list_move(&obj_priv->evict_list, &eviction_list);
-                }
+                } else
+                        drm_gem_object_unreference(&obj_priv->base);
         }
 
         /* Unbinding will emit any required flushes */
         list_for_each_entry_safe(obj_priv, tmp_obj_priv,
                                  &eviction_list, evict_list) {
 #if WATCH_LRU
-                DRM_INFO("%s: evicting %p\n", __func__, obj);
+                DRM_INFO("%s: evicting %p\n", __func__, &obj_priv->base);
 #endif
                 ret = i915_gem_object_unbind(&obj_priv->base);
                 if (ret)
                         return ret;
+
+                drm_gem_object_unreference(&obj_priv->base);
         }
 
         /* The just created free hole should be on the top of the free stack
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 16861b800fee..744225ebb4b2 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -887,6 +887,49 @@ static void i915_handle_error(struct drm_device *dev, bool wedged)
         queue_work(dev_priv->wq, &dev_priv->error_work);
 }
 
+static void i915_pageflip_stall_check(struct drm_device *dev, int pipe)
+{
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+        struct drm_i915_gem_object *obj_priv;
+        struct intel_unpin_work *work;
+        unsigned long flags;
+        bool stall_detected;
+
+        /* Ignore early vblank irqs */
+        if (intel_crtc == NULL)
+                return;
+
+        spin_lock_irqsave(&dev->event_lock, flags);
+        work = intel_crtc->unpin_work;
+
+        if (work == NULL || work->pending || !work->enable_stall_check) {
+                /* Either the pending flip IRQ arrived, or we're too early. Don't check */
+                spin_unlock_irqrestore(&dev->event_lock, flags);
+                return;
+        }
+
+        /* Potential stall - if we see that the flip has happened, assume a missed interrupt */
+        obj_priv = to_intel_bo(work->pending_flip_obj);
+        if(IS_I965G(dev)) {
+                int dspsurf = intel_crtc->plane == 0 ? DSPASURF : DSPBSURF;
+                stall_detected = I915_READ(dspsurf) == obj_priv->gtt_offset;
+        } else {
+                int dspaddr = intel_crtc->plane == 0 ? DSPAADDR : DSPBADDR;
+                stall_detected = I915_READ(dspaddr) == (obj_priv->gtt_offset +
+                                                        crtc->y * crtc->fb->pitch +
+                                                        crtc->x * crtc->fb->bits_per_pixel/8);
+        }
+
+        spin_unlock_irqrestore(&dev->event_lock, flags);
+
+        if (stall_detected) {
+                DRM_DEBUG_DRIVER("Pageflip stall detected\n");
+                intel_prepare_page_flip(dev, intel_crtc->plane);
+        }
+}
+
 irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 {
         struct drm_device *dev = (struct drm_device *) arg;
@@ -1004,15 +1047,19 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                 if (pipea_stats & vblank_status) {
                         vblank++;
                         drm_handle_vblank(dev, 0);
-                        if (!dev_priv->flip_pending_is_done)
+                        if (!dev_priv->flip_pending_is_done) {
+                                i915_pageflip_stall_check(dev, 0);
                                 intel_finish_page_flip(dev, 0);
+                        }
                 }
 
                 if (pipeb_stats & vblank_status) {
                         vblank++;
                         drm_handle_vblank(dev, 1);
-                        if (!dev_priv->flip_pending_is_done)
+                        if (!dev_priv->flip_pending_is_done) {
+                                i915_pageflip_stall_check(dev, 1);
                                 intel_finish_page_flip(dev, 1);
+                        }
                 }
 
                 if ((pipea_stats & PIPE_LEGACY_BLC_EVENT_STATUS) ||
@@ -1303,17 +1350,25 @@ void i915_hangcheck_elapsed(unsigned long data)
                 i915_seqno_passed(i915_get_gem_seqno(dev,
                                 &dev_priv->render_ring),
                         i915_get_tail_request(dev)->seqno)) {
+                bool missed_wakeup = false;
+
                 dev_priv->hangcheck_count = 0;
 
                 /* Issue a wake-up to catch stuck h/w. */
-                if (dev_priv->render_ring.waiting_gem_seqno |
-                    dev_priv->bsd_ring.waiting_gem_seqno) {
-                        DRM_ERROR("Hangcheck timer elapsed... GPU idle, missed IRQ.\n");
-                        if (dev_priv->render_ring.waiting_gem_seqno)
-                                DRM_WAKEUP(&dev_priv->render_ring.irq_queue);
-                        if (dev_priv->bsd_ring.waiting_gem_seqno)
-                                DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue);
+                if (dev_priv->render_ring.waiting_gem_seqno &&
+                    waitqueue_active(&dev_priv->render_ring.irq_queue)) {
+                        DRM_WAKEUP(&dev_priv->render_ring.irq_queue);
+                        missed_wakeup = true;
                 }
+
+                if (dev_priv->bsd_ring.waiting_gem_seqno &&
+                    waitqueue_active(&dev_priv->bsd_ring.irq_queue)) {
+                        DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue);
+                        missed_wakeup = true;
+                }
+
+                if (missed_wakeup)
+                        DRM_ERROR("Hangcheck timer elapsed... GPU idle, missed IRQ.\n");
                 return;
         }
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 67e3ec1a6af9..4f5e15577e89 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -319,6 +319,7 @@
 
 #define MI_MODE         0x0209c
 # define VS_TIMER_DISPATCH                              (1 << 6)
+# define MI_FLUSH_ENABLE                                (1 << 11)
 
 #define SCPD0           0x0209c /* 915+ only */
 #define IER             0x020a0
@@ -2205,9 +2206,17 @@
 #define  WM1_LP_SR_EN           (1<<31)
 #define  WM1_LP_LATENCY_SHIFT   24
 #define  WM1_LP_LATENCY_MASK    (0x7f<<24)
+#define  WM1_LP_FBC_LP1_MASK    (0xf<<20)
+#define  WM1_LP_FBC_LP1_SHIFT   20
 #define  WM1_LP_SR_MASK         (0x1ff<<8)
 #define  WM1_LP_SR_SHIFT        8
 #define  WM1_LP_CURSOR_MASK     (0x3f)
+#define WM2_LP_ILK              0x4510c
+#define  WM2_LP_EN              (1<<31)
+#define WM3_LP_ILK              0x45110
+#define  WM3_LP_EN              (1<<31)
+#define WM1S_LP_ILK             0x45120
+#define  WM1S_LP_EN             (1<<31)
 
 /* Memory latency timer register */
 #define MLTR_ILK                0x11222
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 2c6b98f2440e..31f08581e93a 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -789,16 +789,25 @@ int i915_save_state(struct drm_device *dev)
                 dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
 
         /* Fences */
-        if (IS_I965G(dev)) {
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
+                for (i = 0; i < 16; i++)
+                        dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8));
+                break;
+        case 5:
+        case 4:
                 for (i = 0; i < 16; i++)
                         dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + (i * 8));
-        } else {
-                for (i = 0; i < 8; i++)
-                        dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
-
+                break;
+        case 3:
                 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
                         for (i = 0; i < 8; i++)
                                 dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4));
+        case 2:
+                for (i = 0; i < 8; i++)
+                        dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
+                break;
+
         }
 
         return 0;
@@ -815,15 +824,24 @@ int i915_restore_state(struct drm_device *dev)
         I915_WRITE(HWS_PGA, dev_priv->saveHWS);
 
         /* Fences */
-        if (IS_I965G(dev)) {
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
+                for (i = 0; i < 16; i++)
+                        I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 + (i * 8), dev_priv->saveFENCE[i]);
+                break;
+        case 5:
+        case 4:
                 for (i = 0; i < 16; i++)
                         I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]);
-        } else {
-                for (i = 0; i < 8; i++)
-                        I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+                break;
+        case 3:
+        case 2:
                 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
                         for (i = 0; i < 8; i++)
                                 I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]);
+                for (i = 0; i < 8; i++)
+                        I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+                break;
         }
 
         i915_restore_display(dev);
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 4b7735196cd5..197d4f32585a 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -188,7 +188,7 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector)
 
         if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0,
                      1000, 1))
-                DRM_ERROR("timed out waiting for FORCE_TRIGGER");
+                DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");
 
         if (turn_off_dac) {
                 I915_WRITE(PCH_ADPA, temp);
@@ -245,7 +245,7 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
                 if (wait_for((I915_READ(PORT_HOTPLUG_EN) &
                               CRT_HOTPLUG_FORCE_DETECT) == 0,
                              1000, 1))
-                        DRM_ERROR("timed out waiting for FORCE_DETECT to go off");
+                        DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off");
         }
 
         stat = I915_READ(PORT_HOTPLUG_STAT);
@@ -400,7 +400,8 @@ intel_crt_load_detect(struct drm_crtc *crtc, struct intel_encoder *intel_encoder
         return status;
 }
 
-static enum drm_connector_status intel_crt_detect(struct drm_connector *connector)
+static enum drm_connector_status
+intel_crt_detect(struct drm_connector *connector, bool force)
 {
         struct drm_device *dev = connector->dev;
         struct drm_encoder *encoder = intel_attached_encoder(connector);
@@ -419,6 +420,9 @@ static enum drm_connector_status intel_crt_detect(struct drm_connector *connecto
         if (intel_crt_detect_ddc(encoder))
                 return connector_status_connected;
 
+        if (!force)
+                return connector->status;
+
         /* for pre-945g platforms use load detect */
         if (encoder->crtc && encoder->crtc->enabled) {
                 status = intel_crt_load_detect(encoder->crtc, intel_encoder);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 11a3394f5fe1..b5bf51a4502d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -990,6 +990,22 @@ void intel_wait_for_vblank(struct drm_device *dev, int pipe)
         struct drm_i915_private *dev_priv = dev->dev_private;
         int pipestat_reg = (pipe == 0 ? PIPEASTAT : PIPEBSTAT);
 
+        /* Clear existing vblank status. Note this will clear any other
+         * sticky status fields as well.
+         *
+         * This races with i915_driver_irq_handler() with the result
+         * that either function could miss a vblank event.  Here it is not
+         * fatal, as we will either wait upon the next vblank interrupt or
+         * timeout.  Generally speaking intel_wait_for_vblank() is only
+         * called during modeset at which time the GPU should be idle and
+         * should *not* be performing page flips and thus not waiting on
+         * vblanks...
+         * Currently, the result of us stealing a vblank from the irq
+         * handler is that a single frame will be skipped during swapbuffers.
+         */
+        I915_WRITE(pipestat_reg,
+                   I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
+
         /* Wait for vblank interrupt bit to set */
         if (wait_for((I915_READ(pipestat_reg) &
                       PIPE_VBLANK_INTERRUPT_STATUS),
@@ -1486,7 +1502,7 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
                         dspcntr &= ~DISPPLANE_TILED;
         }
 
-        if (IS_IRONLAKE(dev))
+        if (HAS_PCH_SPLIT(dev))
                 /* must disable */
                 dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
 
@@ -1495,20 +1511,19 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
         Start = obj_priv->gtt_offset;
         Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8);
 
-        DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y);
+        DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
+                      Start, Offset, x, y, fb->pitch);
         I915_WRITE(dspstride, fb->pitch);
         if (IS_I965G(dev)) {
-                I915_WRITE(dspbase, Offset);
-                I915_READ(dspbase);
                 I915_WRITE(dspsurf, Start);
-                I915_READ(dspsurf);
                 I915_WRITE(dsptileoff, (y << 16) | x);
+                I915_WRITE(dspbase, Offset);
         } else {
                 I915_WRITE(dspbase, Start + Offset);
-                I915_READ(dspbase);
         }
+        POSTING_READ(dspbase);
 
-        if ((IS_I965G(dev) || plane == 0))
+        if (IS_I965G(dev) || plane == 0)
                 intel_update_fbc(crtc, &crtc->mode);
 
         intel_wait_for_vblank(dev, intel_crtc->pipe);
@@ -1522,7 +1537,6 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                     struct drm_framebuffer *old_fb)
 {
         struct drm_device *dev = crtc->dev;
-        struct drm_i915_private *dev_priv = dev->dev_private;
         struct drm_i915_master_private *master_priv;
         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
         struct intel_framebuffer *intel_fb;
@@ -1530,13 +1544,6 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
         struct drm_gem_object *obj;
         int pipe = intel_crtc->pipe;
         int plane = intel_crtc->plane;
-        unsigned long Start, Offset;
-        int dspbase = (plane == 0 ? DSPAADDR : DSPBADDR);
-        int dspsurf = (plane == 0 ? DSPASURF : DSPBSURF);
-        int dspstride = (plane == 0) ? DSPASTRIDE : DSPBSTRIDE;
-        int dsptileoff = (plane == 0 ? DSPATILEOFF : DSPBTILEOFF);
-        int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR;
-        u32 dspcntr;
         int ret;
 
         /* no fb bound */
@@ -1572,71 +1579,18 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 return ret;
         }
 
-        dspcntr = I915_READ(dspcntr_reg);
-        /* Mask out pixel format bits in case we change it */
-        dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
-        switch (crtc->fb->bits_per_pixel) {
-        case 8:
-                dspcntr |= DISPPLANE_8BPP;
-                break;
-        case 16:
-                if (crtc->fb->depth == 15)
-                        dspcntr |= DISPPLANE_15_16BPP;
-                else
-                        dspcntr |= DISPPLANE_16BPP;
-                break;
-        case 24:
-        case 32:
-                if (crtc->fb->depth == 30)
-                        dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA;
-                else
-                        dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
-                break;
-        default:
-                DRM_ERROR("Unknown color depth\n");
+        ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y);
+        if (ret) {
                 i915_gem_object_unpin(obj);
                 mutex_unlock(&dev->struct_mutex);
-                return -EINVAL;
-        }
-        if (IS_I965G(dev)) {
-                if (obj_priv->tiling_mode != I915_TILING_NONE)
-                        dspcntr |= DISPPLANE_TILED;
-                else
-                        dspcntr &= ~DISPPLANE_TILED;
-        }
-
-        if (HAS_PCH_SPLIT(dev))
-                /* must disable */
-                dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
-
-        I915_WRITE(dspcntr_reg, dspcntr);
-
-        Start = obj_priv->gtt_offset;
-        Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
-
-        DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
-                      Start, Offset, x, y, crtc->fb->pitch);
-        I915_WRITE(dspstride, crtc->fb->pitch);
-        if (IS_I965G(dev)) {
-                I915_WRITE(dspsurf, Start);
-                I915_WRITE(dsptileoff, (y << 16) | x);
-                I915_WRITE(dspbase, Offset);
-        } else {
-                I915_WRITE(dspbase, Start + Offset);
+                return ret;
         }
-        POSTING_READ(dspbase);
-
-        if ((IS_I965G(dev) || plane == 0))
-                intel_update_fbc(crtc, &crtc->mode);
-
-        intel_wait_for_vblank(dev, pipe);
 
         if (old_fb) {
                 intel_fb = to_intel_framebuffer(old_fb);
                 obj_priv = to_intel_bo(intel_fb->obj);
                 i915_gem_object_unpin(intel_fb->obj);
         }
-        intel_increase_pllclock(crtc, true);
 
         mutex_unlock(&dev->struct_mutex);
 
@@ -1911,9 +1865,6 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
         int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL;
         int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL;
         int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF;
-        int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1;
-        int pf_win_size = (pipe == 0) ? PFA_WIN_SZ : PFB_WIN_SZ;
-        int pf_win_pos = (pipe == 0) ? PFA_WIN_POS : PFB_WIN_POS;
         int cpu_htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
         int cpu_hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
         int cpu_hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
@@ -1982,15 +1933,19 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
                 }
 
                 /* Enable panel fitting for LVDS */
-                if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)
-                    || HAS_eDP || intel_pch_has_edp(crtc)) {
-                        if (dev_priv->pch_pf_size) {
-                                temp = I915_READ(pf_ctl_reg);
-                                I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3);
-                                I915_WRITE(pf_win_pos, dev_priv->pch_pf_pos);
-                                I915_WRITE(pf_win_size, dev_priv->pch_pf_size);
-                        } else
-                                I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE);
+                if (dev_priv->pch_pf_size &&
+                    (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)
+                    || HAS_eDP || intel_pch_has_edp(crtc))) {
+                        /* Force use of hard-coded filter coefficients
+                         * as some pre-programmed values are broken,
+                         * e.g. x201.
+                         */
+                        I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1,
+                                   PF_ENABLE | PF_FILTER_MED_3x3);
+                        I915_WRITE(pipe ? PFB_WIN_POS : PFA_WIN_POS,
+                                   dev_priv->pch_pf_pos);
+                        I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ,
+                                   dev_priv->pch_pf_size);
                 }
 
                 /* Enable CPU pipe */
@@ -2115,7 +2070,7 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
                         I915_WRITE(transconf_reg, temp | TRANS_ENABLE);
                         I915_READ(transconf_reg);
 
-                        if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 10, 0))
+                        if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 100, 1))
                                 DRM_ERROR("failed to enable transcoder\n");
                 }
 
@@ -2155,14 +2110,8 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
                 udelay(100);
 
                 /* Disable PF */
-                temp = I915_READ(pf_ctl_reg);
-                if ((temp & PF_ENABLE) != 0) {
-                        I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE);
-                        I915_READ(pf_ctl_reg);
-                }
-                I915_WRITE(pf_win_size, 0);
-                POSTING_READ(pf_win_size);
-
+                I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, 0);
+                I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, 0);
 
                 /* disable CPU FDI tx and PCH FDI rx */
                 temp = I915_READ(fdi_tx_reg);
@@ -2421,6 +2370,9 @@ static void intel_crtc_dpms(struct drm_crtc *crtc, int mode)
         int pipe = intel_crtc->pipe;
         bool enabled;
 
+        if (intel_crtc->dpms_mode == mode)
+                return;
+
         intel_crtc->dpms_mode = mode;
         intel_crtc->cursor_on = mode == DRM_MODE_DPMS_ON;
 
@@ -2511,11 +2463,19 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
                                   struct drm_display_mode *adjusted_mode)
 {
         struct drm_device *dev = crtc->dev;
+
         if (HAS_PCH_SPLIT(dev)) {
                 /* FDI link clock is fixed at 2.7G */
                 if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
                         return false;
         }
+
+        /* XXX some encoders set the crtcinfo, others don't.
+         * Obviously we need some form of conflict resolution here...
+         */
+        if (adjusted_mode->crtc_htotal == 0)
+                drm_mode_set_crtcinfo(adjusted_mode, 0);
+
         return true;
 }
 
@@ -2815,14 +2775,8 @@ static unsigned long intel_calculate_wm(unsigned long clock_in_khz,
         /* Don't promote wm_size to unsigned... */
         if (wm_size > (long)wm->max_wm)
                 wm_size = wm->max_wm;
-        if (wm_size <= 0) {
+        if (wm_size <= 0)
                 wm_size = wm->default_wm;
-                DRM_ERROR("Insufficient FIFO for plane, expect flickering:"
-                          " entries required = %ld, available = %lu.\n",
-                          entries_required + wm->guard_size,
-                          wm->fifo_size);
-        }
-
         return wm_size;
 }
 
@@ -3436,8 +3390,7 @@ static void ironlake_update_wm(struct drm_device *dev,  int planea_clock,
                 reg_value = I915_READ(WM1_LP_ILK);
                 reg_value &= ~(WM1_LP_LATENCY_MASK | WM1_LP_SR_MASK |
                                WM1_LP_CURSOR_MASK);
-                reg_value |= WM1_LP_SR_EN |
-                             (ilk_sr_latency << WM1_LP_LATENCY_SHIFT) |
+                reg_value |= (ilk_sr_latency << WM1_LP_LATENCY_SHIFT) |
                              (sr_wm << WM1_LP_SR_SHIFT) | cursor_wm;
 
                 I915_WRITE(WM1_LP_ILK, reg_value);
@@ -3554,10 +3507,9 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         u32 dpll = 0, fp = 0, fp2 = 0, dspcntr, pipeconf;
         bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false;
         bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false;
-        bool is_edp = false;
+        struct intel_encoder *has_edp_encoder = NULL;
         struct drm_mode_config *mode_config = &dev->mode_config;
         struct drm_encoder *encoder;
-        struct intel_encoder *intel_encoder = NULL;
         const intel_limit_t *limit;
         int ret;
         struct fdi_m_n m_n = {0};
@@ -3578,12 +3530,12 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
         drm_vblank_pre_modeset(dev, pipe);
 
         list_for_each_entry(encoder, &mode_config->encoder_list, head) {
+                struct intel_encoder *intel_encoder;
 
-                if (!encoder || encoder->crtc != crtc)
+                if (encoder->crtc != crtc)
                         continue;
 
                 intel_encoder = enc_to_intel_encoder(encoder);
-
                 switch (intel_encoder->type) {
                 case INTEL_OUTPUT_LVDS:
                         is_lvds = true;
@@ -3607,7 +3559,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                         is_dp = true;
                         break;
                 case INTEL_OUTPUT_EDP:
-                        is_edp = true;
+                        has_edp_encoder = intel_encoder;
                         break;
                 }
 
@@ -3685,10 +3637,10 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 int lane = 0, link_bw, bpp;
                 /* eDP doesn't require FDI link, so just set DP M/N
                    according to current link config */
-                if (is_edp) {
+                if (has_edp_encoder) {
                         target_clock = mode->clock;
-                        intel_edp_link_config(intel_encoder,
-                                        &lane, &link_bw);
+                        intel_edp_link_config(has_edp_encoder,
+                                              &lane, &link_bw);
                 } else {
                         /* DP over FDI requires target mode clock
                            instead of link clock */
@@ -3709,7 +3661,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                                 temp |= PIPE_8BPC;
                         else
                                 temp |= PIPE_6BPC;
-                } else if (is_edp || (is_dp && intel_pch_has_edp(crtc))) {
+                } else if (has_edp_encoder || (is_dp && intel_pch_has_edp(crtc))) {
                         switch (dev_priv->edp_bpp/3) {
                         case 8:
                                 temp |= PIPE_8BPC;
@@ -3782,7 +3734,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 
                 udelay(200);
 
-                if (is_edp) {
+                if (has_edp_encoder) {
                         if (dev_priv->lvds_use_ssc) {
                                 temp |= DREF_SSC1_ENABLE;
                                 I915_WRITE(PCH_DREF_CONTROL, temp);
@@ -3931,7 +3883,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 dpll_reg = pch_dpll_reg;
         }
 
-        if (!is_edp) {
+        if (!has_edp_encoder) {
                 I915_WRITE(fp_reg, fp);
                 I915_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE);
                 I915_READ(dpll_reg);
@@ -4026,7 +3978,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 }
         }
 
-        if (!is_edp) {
+        if (!has_edp_encoder) {
                 I915_WRITE(fp_reg, fp);
                 I915_WRITE(dpll_reg, dpll);
                 I915_READ(dpll_reg);
@@ -4105,7 +4057,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 I915_WRITE(link_m1_reg, m_n.link_m);
                 I915_WRITE(link_n1_reg, m_n.link_n);
 
-                if (is_edp) {
+                if (has_edp_encoder) {
                         ironlake_set_pll_edp(crtc, adjusted_mode->clock);
                 } else {
                         /* enable FDI RX PLL too */
@@ -4911,15 +4863,6 @@ static void intel_crtc_destroy(struct drm_crtc *crtc)
         kfree(intel_crtc);
 }
 
-struct intel_unpin_work {
-        struct work_struct work;
-        struct drm_device *dev;
-        struct drm_gem_object *old_fb_obj;
-        struct drm_gem_object *pending_flip_obj;
-        struct drm_pending_vblank_event *event;
-        int pending;
-};
-
 static void intel_unpin_work_fn(struct work_struct *__work)
 {
         struct intel_unpin_work *work =
@@ -5007,7 +4950,8 @@ void intel_prepare_page_flip(struct drm_device *dev, int plane)
 
         spin_lock_irqsave(&dev->event_lock, flags);
         if (intel_crtc->unpin_work) {
-                intel_crtc->unpin_work->pending = 1;
+                if ((++intel_crtc->unpin_work->pending) > 1)
+                        DRM_ERROR("Prepared flip multiple times\n");
         } else {
                 DRM_DEBUG_DRIVER("preparing flip with no unpin work?\n");
         }
@@ -5026,9 +4970,9 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
         struct intel_unpin_work *work;
         unsigned long flags, offset;
-        int pipesrc_reg = (intel_crtc->pipe == 0) ? PIPEASRC : PIPEBSRC;
-        int ret, pipesrc;
-        u32 flip_mask;
+        int pipe = intel_crtc->pipe;
+        u32 pf, pipesrc;
+        int ret;
 
         work = kzalloc(sizeof *work, GFP_KERNEL);
         if (work == NULL)
@@ -5077,42 +5021,73 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
         atomic_inc(&obj_priv->pending_flip);
         work->pending_flip_obj = obj;
 
-        if (intel_crtc->plane)
-                flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
-        else
-                flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
-
         if (IS_GEN3(dev) || IS_GEN2(dev)) {
+                u32 flip_mask;
+
+                if (intel_crtc->plane)
+                        flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
+                else
+                        flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
+
                 BEGIN_LP_RING(2);
                 OUT_RING(MI_WAIT_FOR_EVENT | flip_mask);
                 OUT_RING(0);
                 ADVANCE_LP_RING();
         }
 
+        work->enable_stall_check = true;
+
         /* Offset into the new buffer for cases of shared fbs between CRTCs */
-        offset = obj_priv->gtt_offset;
-        offset += (crtc->y * fb->pitch) + (crtc->x * (fb->bits_per_pixel) / 8);
+        offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8;
 
         BEGIN_LP_RING(4);
-        if (IS_I965G(dev)) {
+        switch(INTEL_INFO(dev)->gen) {
+        case 2:
                 OUT_RING(MI_DISPLAY_FLIP |
                          MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
                 OUT_RING(fb->pitch);
-                OUT_RING(offset | obj_priv->tiling_mode);
-                pipesrc = I915_READ(pipesrc_reg); 
-                OUT_RING(pipesrc & 0x0fff0fff);
-        } else if (IS_GEN3(dev)) {
+                OUT_RING(obj_priv->gtt_offset + offset);
+                OUT_RING(MI_NOOP);
+                break;
+
+        case 3:
                 OUT_RING(MI_DISPLAY_FLIP_I915 |
                          MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
                 OUT_RING(fb->pitch);
-                OUT_RING(offset);
+                OUT_RING(obj_priv->gtt_offset + offset);
                 OUT_RING(MI_NOOP);
-        } else {
+                break;
+
+        case 4:
+        case 5:
+                /* i965+ uses the linear or tiled offsets from the
+                 * Display Registers (which do not change across a page-flip)
+                 * so we need only reprogram the base address.
+                 */
                 OUT_RING(MI_DISPLAY_FLIP |
                          MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
                 OUT_RING(fb->pitch);
-                OUT_RING(offset);
-                OUT_RING(MI_NOOP);
+                OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode);
+
+                /* XXX Enabling the panel-fitter across page-flip is so far
+                 * untested on non-native modes, so ignore it for now.
+                 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
+                 */
+                pf = 0;
+                pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff;
+                OUT_RING(pf | pipesrc);
+                break;
+
+        case 6:
+                OUT_RING(MI_DISPLAY_FLIP |
+                         MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+                OUT_RING(fb->pitch | obj_priv->tiling_mode);
+                OUT_RING(obj_priv->gtt_offset);
+
+                pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
+                pipesrc = I915_READ(pipe == 0 ? PIPEASRC : PIPEBSRC) & 0x0fff0fff;
+                OUT_RING(pf | pipesrc);
+                break;
         }
         ADVANCE_LP_RING();
 
@@ -5193,7 +5168,7 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
         dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
 
         intel_crtc->cursor_addr = 0;
-        intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF;
+        intel_crtc->dpms_mode = -1;
         drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
 
         intel_crtc->busy = false;
@@ -5701,6 +5676,9 @@ void intel_init_clock_gating(struct drm_device *dev)
                         I915_WRITE(DISP_ARB_CTL,
                                         (I915_READ(DISP_ARB_CTL) |
                                                 DISP_FBC_WM_DIS));
+                I915_WRITE(WM3_LP_ILK, 0);
+                I915_WRITE(WM2_LP_ILK, 0);
+                I915_WRITE(WM1_LP_ILK, 0);
                 }
                 /*
                  * Based on the document from hardware guys the following bits
@@ -5722,8 +5700,7 @@ void intel_init_clock_gating(struct drm_device *dev)
                                    ILK_DPFC_DIS2 |
                                    ILK_CLK_FBC);
                 }
-                if (IS_GEN6(dev))
-                        return;
+                return;
         } else if (IS_G4X(dev)) {
                 uint32_t dspclk_gate;
                 I915_WRITE(RENCLK_GATE_D1, 0);
@@ -5784,11 +5761,9 @@ void intel_init_clock_gating(struct drm_device *dev)
                                 OUT_RING(MI_FLUSH);
                                 ADVANCE_LP_RING();
                         }
-                } else {
+                } else
                         DRM_DEBUG_KMS("Failed to allocate render context."
-                                      "Disable RC6\n");
-                        return;
-                }
+                                       "Disable RC6\n");
         }
 
         if (I915_HAS_RC6(dev) && drm_core_check_feature(dev, DRIVER_MODESET)) {
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 9caccd03dccb..1a51ee07de3e 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -239,7 +239,6 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
         uint32_t ch_data = ch_ctl + 4;
         int i;
         int recv_bytes;
-        uint32_t ctl;
         uint32_t status;
         uint32_t aux_clock_divider;
         int try, precharge;
@@ -263,41 +262,43 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
         else
                 precharge = 5;
 
+        if (I915_READ(ch_ctl) & DP_AUX_CH_CTL_SEND_BUSY) {
+                DRM_ERROR("dp_aux_ch not started status 0x%08x\n",
+                          I915_READ(ch_ctl));
+                return -EBUSY;
+        }
+
         /* Must try at least 3 times according to DP spec */
         for (try = 0; try < 5; try++) {
                 /* Load the send data into the aux channel data registers */
-                for (i = 0; i < send_bytes; i += 4) {
-                        uint32_t    d = pack_aux(send + i, send_bytes - i);
-        
-                        I915_WRITE(ch_data + i, d);
-                }
-        
-                ctl = (DP_AUX_CH_CTL_SEND_BUSY |
-                       DP_AUX_CH_CTL_TIME_OUT_400us |
-                       (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
-                       (precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
-                       (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT) |
-                       DP_AUX_CH_CTL_DONE |
-                       DP_AUX_CH_CTL_TIME_OUT_ERROR |
-                       DP_AUX_CH_CTL_RECEIVE_ERROR);
+                for (i = 0; i < send_bytes; i += 4)
+                        I915_WRITE(ch_data + i,
+                                   pack_aux(send + i, send_bytes - i));
         
                 /* Send the command and wait for it to complete */
-                I915_WRITE(ch_ctl, ctl);
-                (void) I915_READ(ch_ctl);
+                I915_WRITE(ch_ctl,
+                           DP_AUX_CH_CTL_SEND_BUSY |
+                           DP_AUX_CH_CTL_TIME_OUT_400us |
+                           (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
+                           (precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
+                           (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT) |
+                           DP_AUX_CH_CTL_DONE |
+                           DP_AUX_CH_CTL_TIME_OUT_ERROR |
+                           DP_AUX_CH_CTL_RECEIVE_ERROR);
                 for (;;) {
-                        udelay(100);
                         status = I915_READ(ch_ctl);
                         if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)
                                 break;
+                        udelay(100);
                 }
         
                 /* Clear done status and any errors */
-                I915_WRITE(ch_ctl, (status |
-                                DP_AUX_CH_CTL_DONE |
-                                DP_AUX_CH_CTL_TIME_OUT_ERROR |
-                                DP_AUX_CH_CTL_RECEIVE_ERROR));
-                (void) I915_READ(ch_ctl);
-                if ((status & DP_AUX_CH_CTL_TIME_OUT_ERROR) == 0)
+                I915_WRITE(ch_ctl,
+                           status |
+                           DP_AUX_CH_CTL_DONE |
+                           DP_AUX_CH_CTL_TIME_OUT_ERROR |
+                           DP_AUX_CH_CTL_RECEIVE_ERROR);
+                if (status & DP_AUX_CH_CTL_DONE)
                         break;
         }
 
@@ -324,15 +325,12 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
         /* Unload any bytes sent back from the other side */
         recv_bytes = ((status & DP_AUX_CH_CTL_MESSAGE_SIZE_MASK) >>
                       DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT);
-
         if (recv_bytes > recv_size)
                 recv_bytes = recv_size;
         
-        for (i = 0; i < recv_bytes; i += 4) {
-                uint32_t    d = I915_READ(ch_data + i);
-
-                unpack_aux(d, recv + i, recv_bytes - i);
-        }
+        for (i = 0; i < recv_bytes; i += 4)
+                unpack_aux(I915_READ(ch_data + i),
+                           recv + i, recv_bytes - i);
 
         return recv_bytes;
 }
@@ -1388,7 +1386,7 @@ ironlake_dp_detect(struct drm_connector *connector)
  * \return false if DP port is disconnected.
  */
 static enum drm_connector_status
-intel_dp_detect(struct drm_connector *connector)
+intel_dp_detect(struct drm_connector *connector, bool force)
 {
         struct drm_encoder *encoder = intel_attached_encoder(connector);
         struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 0e92aa07b382..ad312ca6b3e5 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -176,6 +176,16 @@ struct intel_crtc {
 #define enc_to_intel_encoder(x) container_of(x, struct intel_encoder, enc)
 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 
+struct intel_unpin_work {
+        struct work_struct work;
+        struct drm_device *dev;
+        struct drm_gem_object *old_fb_obj;
+        struct drm_gem_object *pending_flip_obj;
+        struct drm_pending_vblank_event *event;
+        int pending;
+        bool enable_stall_check;
+};
+
 struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg,
                                      const char *name);
 void intel_i2c_destroy(struct i2c_adapter *adapter);
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index a399f4b2c1c5..7c9ec1472d46 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -221,7 +221,8 @@ static void intel_dvo_mode_set(struct drm_encoder *encoder,
  *
  * Unimplemented.
  */
-static enum drm_connector_status intel_dvo_detect(struct drm_connector *connector)
+static enum drm_connector_status
+intel_dvo_detect(struct drm_connector *connector, bool force)
 {
         struct drm_encoder *encoder = intel_attached_encoder(connector);
         struct intel_dvo *intel_dvo = enc_to_intel_dvo(encoder);
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index ccd4c97e6524..926934a482ec 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -139,7 +139,7 @@ static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
 }
 
 static enum drm_connector_status
-intel_hdmi_detect(struct drm_connector *connector)
+intel_hdmi_detect(struct drm_connector *connector, bool force)
 {
         struct drm_encoder *encoder = intel_attached_encoder(connector);
         struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index b819c1081147..6ec39a86ed06 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -445,7 +445,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
  * connected and closed means disconnected.  We also send hotplug events as
  * needed, using lid status notification from the input layer.
  */
-static enum drm_connector_status intel_lvds_detect(struct drm_connector *connector)
+static enum drm_connector_status
+intel_lvds_detect(struct drm_connector *connector, bool force)
 {
         struct drm_device *dev = connector->dev;
         enum drm_connector_status status = connector_status_connected;
@@ -540,7 +541,9 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
          * the LID nofication event.
          */
         if (connector)
-                connector->status = connector->funcs->detect(connector);
+                connector->status = connector->funcs->detect(connector,
+                                                             false);
+
         /* Don't force modeset on machines where it causes a GPU lockup */
         if (dmi_check_system(intel_no_modeset_on_lid))
                 return NOTIFY_OK;
@@ -875,8 +878,6 @@ void intel_lvds_init(struct drm_device *dev)
 
         intel_encoder->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
         intel_encoder->crtc_mask = (1 << 1);
-        if (IS_I965G(dev))
-                intel_encoder->crtc_mask |= (1 << 0);
         drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs);
         drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs);
         connector->display_info.subpixel_order = SubPixelHorizontalRGB;
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 4f00390d7c61..1d306a458be6 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -25,6 +25,8 @@
  *
  * Derived from Xorg ddx, xf86-video-intel, src/i830_video.c
  */
+
+#include <linux/seq_file.h>
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 51e9c9e718c4..cb3508f78bc3 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -220,9 +220,13 @@ static int init_render_ring(struct drm_device *dev,
 {
         drm_i915_private_t *dev_priv = dev->dev_private;
         int ret = init_ring_common(dev, ring);
+        int mode;
+
         if (IS_I9XX(dev) && !IS_GEN3(dev)) {
-                I915_WRITE(MI_MODE,
-                                (VS_TIMER_DISPATCH) << 16 | VS_TIMER_DISPATCH);
+                mode = VS_TIMER_DISPATCH << 16 | VS_TIMER_DISPATCH;
+                if (IS_GEN6(dev))
+                        mode |= MI_FLUSH_ENABLE << 16 | MI_FLUSH_ENABLE;
+                I915_WRITE(MI_MODE, mode);
         }
         return ret;
 }
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 093e914e8a41..ee73e428a84a 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1061,8 +1061,9 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
                 if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
                         return false;
 
-                if (!intel_sdvo_set_input_timings_for_mode(intel_sdvo, mode, adjusted_mode))
-                        return false;
+                (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
+                                                             mode,
+                                                             adjusted_mode);
         } else if (intel_sdvo->is_lvds) {
                 drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode, 0);
 
@@ -1070,8 +1071,9 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
                                                             intel_sdvo->sdvo_lvds_fixed_mode))
                         return false;
 
-                if (!intel_sdvo_set_input_timings_for_mode(intel_sdvo, mode, adjusted_mode))
-                        return false;
+                (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo,
+                                                             mode,
+                                                             adjusted_mode);
         }
 
         /* Make the CRTC code factor in the SDVO pixel multiplier.  The
@@ -1108,10 +1110,9 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
         in_out.in0 = intel_sdvo->attached_output;
         in_out.in1 = 0;
 
-        if (!intel_sdvo_set_value(intel_sdvo,
-                                  SDVO_CMD_SET_IN_OUT_MAP,
-                                  &in_out, sizeof(in_out)))
-                return;
+        intel_sdvo_set_value(intel_sdvo,
+                             SDVO_CMD_SET_IN_OUT_MAP,
+                             &in_out, sizeof(in_out));
 
         if (intel_sdvo->is_hdmi) {
                 if (!intel_sdvo_set_avi_infoframe(intel_sdvo, mode))
@@ -1122,11 +1123,9 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 
         /* We have tried to get input timing in mode_fixup, and filled into
            adjusted_mode */
-        if (intel_sdvo->is_tv || intel_sdvo->is_lvds) {
-                intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
+        intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
+        if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
                 input_dtd.part2.sdvo_flags = intel_sdvo->sdvo_flags;
-        } else
-                intel_sdvo_get_dtd_from_mode(&input_dtd, mode);
 
         /* If it's a TV, we already set the output timing in mode_fixup.
          * Otherwise, the output timing is equal to the input timing.
@@ -1137,8 +1136,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
                                                   intel_sdvo->attached_output))
                         return;
 
-                if (!intel_sdvo_set_output_timing(intel_sdvo, &input_dtd))
-                        return;
+                (void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd);
         }
 
         /* Set the input timing to the screen. Assume always input 0. */
@@ -1165,8 +1163,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
                 intel_sdvo_set_input_timing(encoder, &input_dtd);
         }
 #else
-        if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
-                return;
+        (void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd);
 #endif
 
         sdvo_pixel_multiply = intel_sdvo_get_pixel_multiplier(mode);
@@ -1420,7 +1417,7 @@ intel_analog_is_connected(struct drm_device *dev)
         if (!analog_connector)
                 return false;
 
-        if (analog_connector->funcs->detect(analog_connector) ==
+        if (analog_connector->funcs->detect(analog_connector, false) ==
                         connector_status_disconnected)
                 return false;
 
@@ -1489,7 +1486,8 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
         return status;
 }
 
-static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector)
+static enum drm_connector_status
+intel_sdvo_detect(struct drm_connector *connector, bool force)
 {
         uint16_t response;
         struct drm_encoder *encoder = intel_attached_encoder(connector);
@@ -1932,6 +1930,41 @@ static const struct drm_encoder_funcs intel_sdvo_enc_funcs = {
         .destroy = intel_sdvo_enc_destroy,
 };
 
+static void
+intel_sdvo_guess_ddc_bus(struct intel_sdvo *sdvo)
+{
+        uint16_t mask = 0;
+        unsigned int num_bits;
+
+        /* Make a mask of outputs less than or equal to our own priority in the
+         * list.
+         */
+        switch (sdvo->controlled_output) {
+        case SDVO_OUTPUT_LVDS1:
+                mask |= SDVO_OUTPUT_LVDS1;
+        case SDVO_OUTPUT_LVDS0:
+                mask |= SDVO_OUTPUT_LVDS0;
+        case SDVO_OUTPUT_TMDS1:
+                mask |= SDVO_OUTPUT_TMDS1;
+        case SDVO_OUTPUT_TMDS0:
+                mask |= SDVO_OUTPUT_TMDS0;
+        case SDVO_OUTPUT_RGB1:
+                mask |= SDVO_OUTPUT_RGB1;
+        case SDVO_OUTPUT_RGB0:
+                mask |= SDVO_OUTPUT_RGB0;
+                break;
+        }
+
+        /* Count bits to find what number we are in the priority list. */
+        mask &= sdvo->caps.output_flags;
+        num_bits = hweight16(mask);
+        /* If more than 3 outputs, default to DDC bus 3 for now. */
+        if (num_bits > 3)
+                num_bits = 3;
+
+        /* Corresponds to SDVO_CONTROL_BUS_DDCx */
+        sdvo->ddc_bus = 1 << num_bits;
+}
 
 /**
  * Choose the appropriate DDC bus for control bus switch command for this
@@ -1951,7 +1984,10 @@ intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
         else
                 mapping = &(dev_priv->sdvo_mappings[1]);
 
-        sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
+        if (mapping->initialized)
+                sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
+        else
+                intel_sdvo_guess_ddc_bus(sdvo);
 }
 
 static bool
@@ -2134,8 +2170,7 @@ intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
         return true;
 
 err:
-        intel_sdvo_destroy_enhance_property(connector);
-        kfree(intel_sdvo_connector);
+        intel_sdvo_destroy(connector);
         return false;
 }
 
@@ -2207,8 +2242,7 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
         return true;
 
 err:
-        intel_sdvo_destroy_enhance_property(connector);
-        kfree(intel_sdvo_connector);
+        intel_sdvo_destroy(connector);
         return false;
 }
 
@@ -2486,11 +2520,10 @@ static bool intel_sdvo_create_enhance_property(struct intel_sdvo *intel_sdvo,
                 uint16_t response;
         } enhancements;
 
-        if (!intel_sdvo_get_value(intel_sdvo,
-                                  SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
-                                  &enhancements, sizeof(enhancements)))
-                return false;
-
+        enhancements.response = 0;
+        intel_sdvo_get_value(intel_sdvo,
+                             SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
+                             &enhancements, sizeof(enhancements));
         if (enhancements.response == 0) {
                 DRM_DEBUG_KMS("No enhancement is supported\n");
                 return true;
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index d2029efee982..4a117e318a73 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1231,7 +1231,6 @@ intel_tv_detect_type (struct intel_tv *intel_tv)
         struct drm_encoder *encoder = &intel_tv->base.enc;
         struct drm_device *dev = encoder->dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
-        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
         unsigned long irqflags;
         u32 tv_ctl, save_tv_ctl;
         u32 tv_dac, save_tv_dac;
@@ -1268,11 +1267,15 @@ intel_tv_detect_type (struct intel_tv *intel_tv)
                    DAC_C_0_7_V);
         I915_WRITE(TV_CTL, tv_ctl);
         I915_WRITE(TV_DAC, tv_dac);
-        intel_wait_for_vblank(dev, intel_crtc->pipe);
+        POSTING_READ(TV_DAC);
+        msleep(20);
+
         tv_dac = I915_READ(TV_DAC);
         I915_WRITE(TV_DAC, save_tv_dac);
         I915_WRITE(TV_CTL, save_tv_ctl);
-        intel_wait_for_vblank(dev, intel_crtc->pipe);
+        POSTING_READ(TV_CTL);
+        msleep(20);
+
         /*
          *  A B C
          *  0 1 1 Composite
@@ -1338,7 +1341,7 @@ static void intel_tv_find_better_format(struct drm_connector *connector)
  * we have a pipe programmed in order to probe the TV.
  */
 static enum drm_connector_status
-intel_tv_detect(struct drm_connector *connector)
+intel_tv_detect(struct drm_connector *connector, bool force)
 {
         struct drm_display_mode mode;
         struct drm_encoder *encoder = intel_attached_encoder(connector);
@@ -1350,7 +1353,7 @@ intel_tv_detect(struct drm_connector *connector)
 
         if (encoder->crtc && encoder->crtc->enabled) {
                 type = intel_tv_detect_type(intel_tv);
-        } else {
+        } else if (force) {
                 struct drm_crtc *crtc;
                 int dpms_mode;
 
@@ -1361,10 +1364,9 @@ intel_tv_detect(struct drm_connector *connector)
                         intel_release_load_detect_pipe(&intel_tv->base, connector,
                                                        dpms_mode);
                 } else
-                        type = -1;
-        }
-
-        intel_tv->type = type;
+                        return connector_status_unknown;
+        } else
+                return connector->status;
 
         if (type < 0)
                 return connector_status_disconnected;
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index a1473fff06ac..fc737037f751 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -168,7 +168,7 @@ nouveau_connector_set_encoder(struct drm_connector *connector,
 }
 
 static enum drm_connector_status
-nouveau_connector_detect(struct drm_connector *connector)
+nouveau_connector_detect(struct drm_connector *connector, bool force)
 {
         struct drm_device *dev = connector->dev;
         struct nouveau_connector *nv_connector = nouveau_connector(connector);
@@ -246,7 +246,7 @@ detect_analog:
 }
 
 static enum drm_connector_status
-nouveau_connector_detect_lvds(struct drm_connector *connector)
+nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 {
         struct drm_device *dev = connector->dev;
         struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -267,7 +267,7 @@ nouveau_connector_detect_lvds(struct drm_connector *connector)
 
         /* Try retrieving EDID via DDC */
         if (!dev_priv->vbios.fp_no_ddc) {
-                status = nouveau_connector_detect(connector);
+                status = nouveau_connector_detect(connector, force);
                 if (status == connector_status_connected)
                         goto out;
         }
@@ -558,8 +558,10 @@ nouveau_connector_get_modes(struct drm_connector *connector)
         if (nv_encoder->dcb->type == OUTPUT_LVDS &&
             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
              dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
-                nv_connector->native_mode = drm_mode_create(dev);
-                nouveau_bios_fp_mode(dev, nv_connector->native_mode);
+                struct drm_display_mode mode;
+
+                nouveau_bios_fp_mode(dev, &mode);
+                nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
         }
 
         /* Find the native mode if this is a digital panel, if we didn't
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 6b208ffafa8d..87ac21ec23d2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -64,16 +64,17 @@ nouveau_fence_update(struct nouveau_channel *chan)
         struct nouveau_fence *fence;
         uint32_t sequence;
 
+        spin_lock(&chan->fence.lock);
+
         if (USE_REFCNT)
                 sequence = nvchan_rd32(chan, 0x48);
         else
                 sequence = atomic_read(&chan->fence.last_sequence_irq);
 
         if (chan->fence.sequence_ack == sequence)
-                return;
+                goto out;
         chan->fence.sequence_ack = sequence;
 
-        spin_lock(&chan->fence.lock);
         list_for_each_safe(entry, tmp, &chan->fence.pending) {
                 fence = list_entry(entry, struct nouveau_fence, entry);
 
@@ -85,6 +86,7 @@ nouveau_fence_update(struct nouveau_channel *chan)
                 if (sequence == chan->fence.sequence_ack)
                         break;
         }
+out:
         spin_unlock(&chan->fence.lock);
 }
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 581c67cd7b24..ead7b8fc53fc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -245,7 +245,7 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
                 list_del(&nvbo->entry);
                 nvbo->reserved_by = NULL;
                 ttm_bo_unreserve(&nvbo->bo);
-                drm_gem_object_unreference(nvbo->gem);
+                drm_gem_object_unreference_unlocked(nvbo->gem);
         }
 }
 
@@ -300,7 +300,7 @@ retry:
                         validate_fini(op, NULL);
                         if (ret == -EAGAIN)
                                 ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
-                        drm_gem_object_unreference(gem);
+                        drm_gem_object_unreference_unlocked(gem);
                         if (ret) {
                                 NV_ERROR(dev, "fail reserve\n");
                                 return ret;
@@ -616,8 +616,6 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
                 return PTR_ERR(bo);
         }
 
-        mutex_lock(&dev->struct_mutex);
-
         /* Mark push buffers as being used on PFIFO, the validation code
          * will then make sure that if the pushbuf bo moves, that they
          * happen on the kernel channel, which will in turn cause a sync
@@ -731,7 +729,6 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 out:
         validate_fini(&op, fence);
         nouveau_fence_unref((void**)&fence);
-        mutex_unlock(&dev->struct_mutex);
         kfree(bo);
         kfree(push);
 
diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
index c95bf9b681dd..91ef93cf1f35 100644
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -139,6 +139,8 @@ nv50_instmem_init(struct drm_device *dev)
         chan->file_priv = (struct drm_file *)-2;
         dev_priv->fifos[0] = dev_priv->fifos[127] = chan;
 
+        INIT_LIST_HEAD(&chan->ramht_refs);
+
         /* Channel's PRAMIN object + heap */
         ret = nouveau_gpuobj_new_fake(dev, 0, c_offset, c_size, 0,
                                                         NULL, &chan->ramin);
diff --git a/drivers/gpu/drm/radeon/atombios.h b/drivers/gpu/drm/radeon/atombios.h
index 1bc72c3190a9..fe359a239df3 100644
--- a/drivers/gpu/drm/radeon/atombios.h
+++ b/drivers/gpu/drm/radeon/atombios.h
@@ -4999,7 +4999,7 @@ typedef struct _SW_I2C_IO_DATA_PARAMETERS
 #define SW_I2C_CNTL_WRITE1BIT 6
 
 //==============================VESA definition Portion===============================
-#define VESA_OEM_PRODUCT_REV                                '01.00'
+#define VESA_OEM_PRODUCT_REV                                "01.00"
 #define VESA_MODE_ATTRIBUTE_MODE_SUPPORT             0xBB       //refer to VBE spec p.32, no TTY support
 #define VESA_MODE_WIN_ATTRIBUTE                                              7
 #define VESA_WIN_SIZE                                                                                        64
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 577239a24fd5..cd0290f946cf 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -332,6 +332,11 @@ static void atombios_crtc_set_timing(struct drm_crtc *crtc,
         args.usV_SyncWidth =
                 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
 
+        args.ucOverscanRight = radeon_crtc->h_border;
+        args.ucOverscanLeft = radeon_crtc->h_border;
+        args.ucOverscanBottom = radeon_crtc->v_border;
+        args.ucOverscanTop = radeon_crtc->v_border;
+
         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
                 misc |= ATOM_VSYNC_POLARITY;
         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
@@ -534,6 +539,21 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                                         pll->algo = PLL_ALGO_LEGACY;
                                         pll->flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
                                 }
+                                /* There is some evidence (often anecdotal) that RV515/RV620 LVDS
+                                 * (on some boards at least) prefers the legacy algo.  I'm not
+                                 * sure whether this should handled generically or on a
+                                 * case-by-case quirk basis.  Both algos should work fine in the
+                                 * majority of cases.
+                                 */
+                                if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT)) &&
+                                    ((rdev->family == CHIP_RV515) ||
+                                     (rdev->family == CHIP_RV620))) {
+                                        /* allow the user to overrride just in case */
+                                        if (radeon_new_pll == 1)
+                                                pll->algo = PLL_ALGO_NEW;
+                                        else
+                                                pll->algo = PLL_ALGO_LEGACY;
+                                }
                         } else {
                                 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
                                         pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;
@@ -1056,11 +1076,11 @@ static int avivo_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 
         if (rdev->family >= CHIP_RV770) {
                 if (radeon_crtc->crtc_id) {
-                        WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, 0);
-                        WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, 0);
+                        WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
+                        WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
                 } else {
-                        WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, 0);
-                        WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, 0);
+                        WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
+                        WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
                 }
         }
         WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
@@ -1197,8 +1217,18 @@ int atombios_crtc_mode_set(struct drm_crtc *crtc,
         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
         struct drm_device *dev = crtc->dev;
         struct radeon_device *rdev = dev->dev_private;
+        struct drm_encoder *encoder;
+        bool is_tvcv = false;
 
-        /* TODO color tiling */
+        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+                /* find tv std */
+                if (encoder->crtc == crtc) {
+                        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+                        if (radeon_encoder->active_device &
+                            (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
+                                is_tvcv = true;
+                }
+        }
 
         atombios_disable_ss(crtc);
         /* always set DCPLL */
@@ -1207,9 +1237,14 @@ int atombios_crtc_mode_set(struct drm_crtc *crtc,
         atombios_crtc_set_pll(crtc, adjusted_mode);
         atombios_enable_ss(crtc);
 
-        if (ASIC_IS_AVIVO(rdev))
+        if (ASIC_IS_DCE4(rdev))
                 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
-        else {
+        else if (ASIC_IS_AVIVO(rdev)) {
+                if (is_tvcv)
+                        atombios_crtc_set_timing(crtc, adjusted_mode);
+                else
+                        atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
+        } else {
                 atombios_crtc_set_timing(crtc, adjusted_mode);
                 if (radeon_crtc->crtc_id == 0)
                         atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 957d5067ad9c..79082d4398ae 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -675,6 +675,43 @@ static int evergreen_cp_load_microcode(struct radeon_device *rdev)
         return 0;
 }
 
+static int evergreen_cp_start(struct radeon_device *rdev)
+{
+        int r;
+        uint32_t cp_me;
+
+        r = radeon_ring_lock(rdev, 7);
+        if (r) {
+                DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
+                return r;
+        }
+        radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
+        radeon_ring_write(rdev, 0x1);
+        radeon_ring_write(rdev, 0x0);
+        radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
+        radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
+        radeon_ring_write(rdev, 0);
+        radeon_ring_write(rdev, 0);
+        radeon_ring_unlock_commit(rdev);
+
+        cp_me = 0xff;
+        WREG32(CP_ME_CNTL, cp_me);
+
+        r = radeon_ring_lock(rdev, 4);
+        if (r) {
+                DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
+                return r;
+        }
+        /* init some VGT regs */
+        radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+        radeon_ring_write(rdev, (VGT_VERTEX_REUSE_BLOCK_CNTL - PACKET3_SET_CONTEXT_REG_START) >> 2);
+        radeon_ring_write(rdev, 0xe);
+        radeon_ring_write(rdev, 0x10);
+        radeon_ring_unlock_commit(rdev);
+
+        return 0;
+}
+
 int evergreen_cp_resume(struct radeon_device *rdev)
 {
         u32 tmp;
@@ -719,7 +756,7 @@ int evergreen_cp_resume(struct radeon_device *rdev)
         rdev->cp.rptr = RREG32(CP_RB_RPTR);
         rdev->cp.wptr = RREG32(CP_RB_WPTR);
 
-        r600_cp_start(rdev);
+        evergreen_cp_start(rdev);
         rdev->cp.ready = true;
         r = radeon_ring_test(rdev);
         if (r) {
@@ -1123,14 +1160,25 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
                                                                         EVERGREEN_MAX_BACKENDS_MASK));
                         break;
                 }
-        } else
-                gb_backend_map =
-                        evergreen_get_tile_pipe_to_backend_map(rdev,
-                                                               rdev->config.evergreen.max_tile_pipes,
-                                                               rdev->config.evergreen.max_backends,
-                                                               ((EVERGREEN_MAX_BACKENDS_MASK <<
-                                                                 rdev->config.evergreen.max_backends) &
-                                                                EVERGREEN_MAX_BACKENDS_MASK));
+        } else {
+                switch (rdev->family) {
+                case CHIP_CYPRESS:
+                case CHIP_HEMLOCK:
+                        gb_backend_map = 0x66442200;
+                        break;
+                case CHIP_JUNIPER:
+                        gb_backend_map = 0x00006420;
+                        break;
+                default:
+                        gb_backend_map =
+                                evergreen_get_tile_pipe_to_backend_map(rdev,
+                                                                       rdev->config.evergreen.max_tile_pipes,
+                                                                       rdev->config.evergreen.max_backends,
+                                                                       ((EVERGREEN_MAX_BACKENDS_MASK <<
+                                                                         rdev->config.evergreen.max_backends) &
+                                                                        EVERGREEN_MAX_BACKENDS_MASK));
+                }
+        }
 
         rdev->config.evergreen.tile_config = gb_addr_config;
         WREG32(GB_BACKEND_MAP, gb_backend_map);
@@ -2054,11 +2102,6 @@ int evergreen_resume(struct radeon_device *rdev)
          */
         /* post card */
         atom_asic_init(rdev->mode_info.atom_context);
-        /* Initialize clocks */
-        r = radeon_clocks_init(rdev);
-        if (r) {
-                return r;
-        }
 
         r = evergreen_startup(rdev);
         if (r) {
@@ -2164,9 +2207,6 @@ int evergreen_init(struct radeon_device *rdev)
         radeon_surface_init(rdev);
         /* Initialize clocks */
         radeon_get_clock_info(rdev->ddev);
-        r = radeon_clocks_init(rdev);
-        if (r)
-                return r;
         /* Fence driver */
         r = radeon_fence_driver_init(rdev);
         if (r)
@@ -2236,7 +2276,6 @@ void evergreen_fini(struct radeon_device *rdev)
         evergreen_pcie_gart_fini(rdev);
         radeon_gem_fini(rdev);
         radeon_fence_driver_fini(rdev);
-        radeon_clocks_fini(rdev);
         radeon_agp_fini(rdev);
         radeon_bo_fini(rdev);
         radeon_atombios_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index e817a0bb5eb4..e151f16a8f86 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2020,18 +2020,7 @@ bool r100_gpu_cp_is_lockup(struct radeon_device *rdev, struct r100_gpu_lockup *l
                 return false;
         }
         elapsed = jiffies_to_msecs(cjiffies - lockup->last_jiffies);
-        if (elapsed >= 3000) {
-                /* very likely the improbable case where current
-                 * rptr is equal to last recorded, a while ago, rptr
-                 * this is more likely a false positive update tracking
-                 * information which should force us to be recall at
-                 * latter point
-                 */
-                lockup->last_cp_rptr = cp->rptr;
-                lockup->last_jiffies = jiffies;
-                return false;
-        }
-        if (elapsed >= 1000) {
+        if (elapsed >= 10000) {
                 dev_err(rdev->dev, "GPU lockup CP stall for more than %lumsec\n", elapsed);
                 return true;
         }
@@ -3308,13 +3297,14 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track)
         unsigned long size;
         unsigned prim_walk;
         unsigned nverts;
+        unsigned num_cb = track->num_cb;
 
-        for (i = 0; i < track->num_cb; i++) {
+        if (!track->zb_cb_clear && !track->color_channel_mask &&
+            !track->blend_read_enable)
+                num_cb = 0;
+
+        for (i = 0; i < num_cb; i++) {
                 if (track->cb[i].robj == NULL) {
-                        if (!(track->zb_cb_clear || track->color_channel_mask ||
-                              track->blend_read_enable)) {
-                                continue;
-                        }
                         DRM_ERROR("[drm] No buffer for color buffer %d !\n", i);
                         return -EINVAL;
                 }
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index d0ebae9dde25..ddc3adea1dda 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2119,10 +2119,7 @@ int r600_cp_start(struct radeon_device *rdev)
         }
         radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
         radeon_ring_write(rdev, 0x1);
-        if (rdev->family >= CHIP_CEDAR) {
-                radeon_ring_write(rdev, 0x0);
-                radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
-        } else if (rdev->family >= CHIP_RV770) {
+        if (rdev->family >= CHIP_RV770) {
                 radeon_ring_write(rdev, 0x0);
                 radeon_ring_write(rdev, rdev->config.rv770.max_hw_contexts - 1);
         } else {
@@ -2489,11 +2486,6 @@ int r600_resume(struct radeon_device *rdev)
          */
         /* post card */
         atom_asic_init(rdev->mode_info.atom_context);
-        /* Initialize clocks */
-        r = radeon_clocks_init(rdev);
-        if (r) {
-                return r;
-        }
 
         r = r600_startup(rdev);
         if (r) {
@@ -2586,9 +2578,6 @@ int r600_init(struct radeon_device *rdev)
         radeon_surface_init(rdev);
         /* Initialize clocks */
         radeon_get_clock_info(rdev->ddev);
-        r = radeon_clocks_init(rdev);
-        if (r)
-                return r;
         /* Fence driver */
         r = radeon_fence_driver_init(rdev);
         if (r)
@@ -2663,7 +2652,6 @@ void r600_fini(struct radeon_device *rdev)
         radeon_agp_fini(rdev);
         radeon_gem_fini(rdev);
         radeon_fence_driver_fini(rdev);
-        radeon_clocks_fini(rdev);
         radeon_bo_fini(rdev);
         radeon_atombios_fini(rdev);
         kfree(rdev->bios);
@@ -2741,7 +2729,7 @@ int r600_ib_test(struct radeon_device *rdev)
         if (i < rdev->usec_timeout) {
                 DRM_INFO("ib test succeeded in %u usecs\n", i);
         } else {
-                DRM_ERROR("radeon: ib test failed (sracth(0x%04X)=0x%08X)\n",
+                DRM_ERROR("radeon: ib test failed (scratch(0x%04X)=0x%08X)\n",
                           scratch, tmp);
                 r = -EINVAL;
         }
@@ -3541,7 +3529,7 @@ void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo)
          * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL
          */
         if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740)) {
-                void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
+                void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
                 u32 tmp;
 
                 WREG32(HDP_DEBUG1, 0);
diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c
index d13622ae74e9..9ceb2a1ce799 100644
--- a/drivers/gpu/drm/radeon/r600_blit_kms.c
+++ b/drivers/gpu/drm/radeon/r600_blit_kms.c
@@ -1,3 +1,28 @@
+/*
+ * Copyright 2009 Advanced Micro Devices, Inc.
+ * Copyright 2009 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
 #include "drmP.h"
 #include "drm.h"
 #include "radeon_drm.h"
diff --git a/drivers/gpu/drm/radeon/r600_blit_shaders.h b/drivers/gpu/drm/radeon/r600_blit_shaders.h
index fdc3b378cbb0..f437d36dd98c 100644
--- a/drivers/gpu/drm/radeon/r600_blit_shaders.h
+++ b/drivers/gpu/drm/radeon/r600_blit_shaders.h
@@ -1,3 +1,27 @@
+/*
+ * Copyright 2009 Advanced Micro Devices, Inc.
+ * Copyright 2009 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
 
 #ifndef R600_BLIT_SHADERS_H
 #define R600_BLIT_SHADERS_H
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index d8864949e387..250a3a918193 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -1170,9 +1170,8 @@ static inline int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 i
         /* using get ib will give us the offset into the mipmap bo */
         word0 = radeon_get_ib_value(p, idx + 3) << 8;
         if ((mipmap_size + word0) > radeon_bo_size(mipmap)) {
-                dev_warn(p->dev, "mipmap bo too small (%d %d %d %d %d %d -> %d have %ld)\n",
-                        w0, h0, bpe, blevel, nlevels, word0, mipmap_size, radeon_bo_size(texture));
-                return -EINVAL;
+                /*dev_warn(p->dev, "mipmap bo too small (%d %d %d %d %d %d -> %d have %ld)\n",
+                  w0, h0, bpe, blevel, nlevels, word0, mipmap_size, radeon_bo_size(texture));*/
         }
         return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 3dfcfa3ca425..a168d644bf9e 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1013,6 +1013,11 @@ int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
                                 struct drm_file *filp);
 
+/* VRAM scratch page for HDP bug */
+struct r700_vram_scratch {
+        struct radeon_bo                *robj;
+        volatile uint32_t               *ptr;
+};
 
 /*
  * Core structure, functions and helpers.
@@ -1079,6 +1084,7 @@ struct radeon_device {
         const struct firmware *pfp_fw;  /* r6/700 PFP firmware */
         const struct firmware *rlc_fw;  /* r6/700 RLC firmware */
         struct r600_blit r600_blit;
+        struct r700_vram_scratch vram_scratch;
         int msi_enabled; /* msi enabled */
         struct r600_ih ih; /* r6/700 interrupt ring */
         struct workqueue_struct *wq;
@@ -1333,8 +1339,6 @@ extern bool radeon_card_posted(struct radeon_device *rdev);
 extern void radeon_update_bandwidth_info(struct radeon_device *rdev);
 extern void radeon_update_display_priority(struct radeon_device *rdev);
 extern bool radeon_boot_test_post_card(struct radeon_device *rdev);
-extern int radeon_clocks_init(struct radeon_device *rdev);
-extern void radeon_clocks_fini(struct radeon_device *rdev);
 extern void radeon_scratch_init(struct radeon_device *rdev);
 extern void radeon_surface_init(struct radeon_device *rdev);
 extern int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data);
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index a21bf88e8c2d..25e1dd197791 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -858,21 +858,3 @@ int radeon_asic_init(struct radeon_device *rdev)
         return 0;
 }
 
-/*
- * Wrapper around modesetting bits. Move to radeon_clocks.c?
- */
-int radeon_clocks_init(struct radeon_device *rdev)
-{
-        int r;
-
-        r = radeon_static_clocks_init(rdev->ddev);
-        if (r) {
-                return r;
-        }
-        DRM_INFO("Clocks initialized !\n");
-        return 0;
-}
-
-void radeon_clocks_fini(struct radeon_device *rdev)
-{
-}
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 61141981880d..ebae14c4b768 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -85,6 +85,19 @@ static inline struct radeon_i2c_bus_rec radeon_lookup_i2c_gpio(struct radeon_dev
                 for (i = 0; i < num_indices; i++) {
                         gpio = &i2c_info->asGPIO_Info[i];
 
+                        /* some evergreen boards have bad data for this entry */
+                        if (ASIC_IS_DCE4(rdev)) {
+                                if ((i == 7) &&
+                                    (gpio->usClkMaskRegisterIndex == 0x1936) &&
+                                    (gpio->sucI2cId.ucAccess == 0)) {
+                                        gpio->sucI2cId.ucAccess = 0x97;
+                                        gpio->ucDataMaskShift = 8;
+                                        gpio->ucDataEnShift = 8;
+                                        gpio->ucDataY_Shift = 8;
+                                        gpio->ucDataA_Shift = 8;
+                                }
+                        }
+
                         if (gpio->sucI2cId.ucAccess == id) {
                                 i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex) * 4;
                                 i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex) * 4;
@@ -147,6 +160,20 @@ void radeon_atombios_i2c_init(struct radeon_device *rdev)
                 for (i = 0; i < num_indices; i++) {
                         gpio = &i2c_info->asGPIO_Info[i];
                         i2c.valid = false;
+
+                        /* some evergreen boards have bad data for this entry */
+                        if (ASIC_IS_DCE4(rdev)) {
+                                if ((i == 7) &&
+                                    (gpio->usClkMaskRegisterIndex == 0x1936) &&
+                                    (gpio->sucI2cId.ucAccess == 0)) {
+                                        gpio->sucI2cId.ucAccess = 0x97;
+                                        gpio->ucDataMaskShift = 8;
+                                        gpio->ucDataEnShift = 8;
+                                        gpio->ucDataY_Shift = 8;
+                                        gpio->ucDataA_Shift = 8;
+                                }
+                        }
+
                         i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex) * 4;
                         i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex) * 4;
                         i2c.en_clk_reg = le16_to_cpu(gpio->usClkEnRegisterIndex) * 4;
diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c
index 14448a740ba6..5249af8931e6 100644
--- a/drivers/gpu/drm/radeon/radeon_clocks.c
+++ b/drivers/gpu/drm/radeon/radeon_clocks.c
@@ -327,6 +327,14 @@ void radeon_get_clock_info(struct drm_device *dev)
         mpll->max_feedback_div = 0xff;
         mpll->best_vco = 0;
 
+        if (!rdev->clock.default_sclk)
+                rdev->clock.default_sclk = radeon_get_engine_clock(rdev);
+        if ((!rdev->clock.default_mclk) && rdev->asic->get_memory_clock)
+                rdev->clock.default_mclk = radeon_get_memory_clock(rdev);
+
+        rdev->pm.current_sclk = rdev->clock.default_sclk;
+        rdev->pm.current_mclk = rdev->clock.default_mclk;
+
 }
 
 /* 10 khz */
@@ -897,53 +905,3 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable)
         }
 }
 
-static void radeon_apply_clock_quirks(struct radeon_device *rdev)
-{
-        uint32_t tmp;
-
-        /* XXX make sure engine is idle */
-
-        if (rdev->family < CHIP_RS600) {
-                tmp = RREG32_PLL(RADEON_SCLK_CNTL);
-                if (ASIC_IS_R300(rdev) || ASIC_IS_RV100(rdev))
-                        tmp |= RADEON_SCLK_FORCE_CP | RADEON_SCLK_FORCE_VIP;
-                if ((rdev->family == CHIP_RV250)
-                    || (rdev->family == CHIP_RV280))
-                        tmp |=
-                            RADEON_SCLK_FORCE_DISP1 | RADEON_SCLK_FORCE_DISP2;
-                if ((rdev->family == CHIP_RV350)
-                    || (rdev->family == CHIP_RV380))
-                        tmp |= R300_SCLK_FORCE_VAP;
-                if (rdev->family == CHIP_R420)
-                        tmp |= R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX;
-                WREG32_PLL(RADEON_SCLK_CNTL, tmp);
-        } else if (rdev->family < CHIP_R600) {
-                tmp = RREG32_PLL(AVIVO_CP_DYN_CNTL);
-                tmp |= AVIVO_CP_FORCEON;
-                WREG32_PLL(AVIVO_CP_DYN_CNTL, tmp);
-
-                tmp = RREG32_PLL(AVIVO_E2_DYN_CNTL);
-                tmp |= AVIVO_E2_FORCEON;
-                WREG32_PLL(AVIVO_E2_DYN_CNTL, tmp);
-
-                tmp = RREG32_PLL(AVIVO_IDCT_DYN_CNTL);
-                tmp |= AVIVO_IDCT_FORCEON;
-                WREG32_PLL(AVIVO_IDCT_DYN_CNTL, tmp);
-        }
-}
-
-int radeon_static_clocks_init(struct drm_device *dev)
-{
-        struct radeon_device *rdev = dev->dev_private;
-
-        /* XXX make sure engine is idle */
-
-        if (radeon_dynclks != -1) {
-                if (radeon_dynclks) {
-                        if (rdev->asic->set_clock_gating)
-                                radeon_set_clock_gating(rdev, 1);
-                }
-        }
-        radeon_apply_clock_quirks(rdev);
-        return 0;
-}
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index bd74e428bd14..a04b7a6ad95f 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1485,6 +1485,11 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
                         /* PowerMac8,1 ? */
                         /* imac g5 isight */
                         rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
+                } else if ((rdev->pdev->device == 0x4a48) &&
+                           (rdev->pdev->subsystem_vendor == 0x1002) &&
+                           (rdev->pdev->subsystem_device == 0x4a48)) {
+                        /* Mac X800 */
+                        rdev->mode_info.connector_table = CT_MAC_X800;
                 } else
 #endif /* CONFIG_PPC_PMAC */
 #ifdef CONFIG_PPC64
@@ -1961,6 +1966,48 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
                                             CONNECTOR_OBJECT_ID_VGA,
                                             &hpd);
                 break;
+        case CT_MAC_X800:
+                DRM_INFO("Connector Table: %d (mac x800)\n",
+                         rdev->mode_info.connector_table);
+                /* DVI - primary dac, internal tmds */
+                ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
+                hpd.hpd = RADEON_HPD_1; /* ??? */
+                radeon_add_legacy_encoder(dev,
+                                          radeon_get_encoder_enum(dev,
+                                                                  ATOM_DEVICE_DFP1_SUPPORT,
+                                                                  0),
+                                          ATOM_DEVICE_DFP1_SUPPORT);
+                radeon_add_legacy_encoder(dev,
+                                          radeon_get_encoder_enum(dev,
+                                                                  ATOM_DEVICE_CRT1_SUPPORT,
+                                                                  1),
+                                          ATOM_DEVICE_CRT1_SUPPORT);
+                radeon_add_legacy_connector(dev, 0,
+                                            ATOM_DEVICE_DFP1_SUPPORT |
+                                            ATOM_DEVICE_CRT1_SUPPORT,
+                                            DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
+                                            CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
+                                            &hpd);
+                /* DVI - tv dac, dvo */
+                ddc_i2c = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
+                hpd.hpd = RADEON_HPD_2; /* ??? */
+                radeon_add_legacy_encoder(dev,
+                                          radeon_get_encoder_enum(dev,
+                                                                  ATOM_DEVICE_DFP2_SUPPORT,
+                                                                  0),
+                                          ATOM_DEVICE_DFP2_SUPPORT);
+                radeon_add_legacy_encoder(dev,
+                                          radeon_get_encoder_enum(dev,
+                                                                  ATOM_DEVICE_CRT2_SUPPORT,
+                                                                  2),
+                                          ATOM_DEVICE_CRT2_SUPPORT);
+                radeon_add_legacy_connector(dev, 1,
+                                            ATOM_DEVICE_DFP2_SUPPORT |
+                                            ATOM_DEVICE_CRT2_SUPPORT,
+                                            DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
+                                            CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I,
+                                            &hpd);
+                break;
         default:
                 DRM_INFO("Connector table: %d (invalid)\n",
                          rdev->mode_info.connector_table);
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 1a5ee392e9c7..ecc1a8fafbfd 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -481,7 +481,8 @@ static int radeon_lvds_mode_valid(struct drm_connector *connector,
         return MODE_OK;
 }
 
-static enum drm_connector_status radeon_lvds_detect(struct drm_connector *connector)
+static enum drm_connector_status
+radeon_lvds_detect(struct drm_connector *connector, bool force)
 {
         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
         struct drm_encoder *encoder = radeon_best_single_encoder(connector);
@@ -594,7 +595,8 @@ static int radeon_vga_mode_valid(struct drm_connector *connector,
         return MODE_OK;
 }
 
-static enum drm_connector_status radeon_vga_detect(struct drm_connector *connector)
+static enum drm_connector_status
+radeon_vga_detect(struct drm_connector *connector, bool force)
 {
         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
         struct drm_encoder *encoder;
@@ -691,7 +693,8 @@ static int radeon_tv_mode_valid(struct drm_connector *connector,
         return MODE_OK;
 }
 
-static enum drm_connector_status radeon_tv_detect(struct drm_connector *connector)
+static enum drm_connector_status
+radeon_tv_detect(struct drm_connector *connector, bool force)
 {
         struct drm_encoder *encoder;
         struct drm_encoder_helper_funcs *encoder_funcs;
@@ -748,7 +751,8 @@ static int radeon_dvi_get_modes(struct drm_connector *connector)
  * we have to check if this analog encoder is shared with anyone else (TV)
  * if its shared we have to set the other connector to disconnected.
  */
-static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connector)
+static enum drm_connector_status
+radeon_dvi_detect(struct drm_connector *connector, bool force)
 {
         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
         struct drm_encoder *encoder = NULL;
@@ -972,7 +976,8 @@ static int radeon_dp_get_modes(struct drm_connector *connector)
         return ret;
 }
 
-static enum drm_connector_status radeon_dp_detect(struct drm_connector *connector)
+static enum drm_connector_status
+radeon_dp_detect(struct drm_connector *connector, bool force)
 {
         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
         enum drm_connector_status ret = connector_status_disconnected;
@@ -1051,10 +1056,16 @@ radeon_add_atom_connector(struct drm_device *dev,
         uint32_t subpixel_order = SubPixelNone;
         bool shared_ddc = false;
 
-        /* fixme - tv/cv/din */
         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
                 return;
 
+        /* if the user selected tv=0 don't try and add the connector */
+        if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
+             (connector_type == DRM_MODE_CONNECTOR_Composite) ||
+             (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
+            (radeon_tv == 0))
+                return;
+
         /* see if we already added it */
         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                 radeon_connector = to_radeon_connector(connector);
@@ -1209,19 +1220,17 @@ radeon_add_atom_connector(struct drm_device *dev,
         case DRM_MODE_CONNECTOR_SVIDEO:
         case DRM_MODE_CONNECTOR_Composite:
         case DRM_MODE_CONNECTOR_9PinDIN:
-                if (radeon_tv == 1) {
-                        drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
-                        drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
-                        radeon_connector->dac_load_detect = true;
-                        drm_connector_attach_property(&radeon_connector->base,
-                                                      rdev->mode_info.load_detect_property,
-                                                      1);
-                        drm_connector_attach_property(&radeon_connector->base,
-                                                      rdev->mode_info.tv_std_property,
-                                                      radeon_atombios_get_tv_info(rdev));
-                        /* no HPD on analog connectors */
-                        radeon_connector->hpd.hpd = RADEON_HPD_NONE;
-                }
+                drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
+                drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
+                radeon_connector->dac_load_detect = true;
+                drm_connector_attach_property(&radeon_connector->base,
+                                              rdev->mode_info.load_detect_property,
+                                              1);
+                drm_connector_attach_property(&radeon_connector->base,
+                                              rdev->mode_info.tv_std_property,
+                                              radeon_atombios_get_tv_info(rdev));
+                /* no HPD on analog connectors */
+                radeon_connector->hpd.hpd = RADEON_HPD_NONE;
                 break;
         case DRM_MODE_CONNECTOR_LVDS:
                 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
@@ -1272,10 +1281,16 @@ radeon_add_legacy_connector(struct drm_device *dev,
         struct radeon_connector *radeon_connector;
         uint32_t subpixel_order = SubPixelNone;
 
-        /* fixme - tv/cv/din */
         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
                 return;
 
+        /* if the user selected tv=0 don't try and add the connector */
+        if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
+             (connector_type == DRM_MODE_CONNECTOR_Composite) ||
+             (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
+            (radeon_tv == 0))
+                return;
+
         /* see if we already added it */
         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                 radeon_connector = to_radeon_connector(connector);
@@ -1347,26 +1362,24 @@ radeon_add_legacy_connector(struct drm_device *dev,
         case DRM_MODE_CONNECTOR_SVIDEO:
         case DRM_MODE_CONNECTOR_Composite:
         case DRM_MODE_CONNECTOR_9PinDIN:
-                if (radeon_tv == 1) {
-                        drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
-                        drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
-                        radeon_connector->dac_load_detect = true;
-                        /* RS400,RC410,RS480 chipset seems to report a lot
-                         * of false positive on load detect, we haven't yet
-                         * found a way to make load detect reliable on those
-                         * chipset, thus just disable it for TV.
-                         */
-                        if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480)
-                                radeon_connector->dac_load_detect = false;
-                        drm_connector_attach_property(&radeon_connector->base,
-                                                      rdev->mode_info.load_detect_property,
-                                                      radeon_connector->dac_load_detect);
-                        drm_connector_attach_property(&radeon_connector->base,
-                                                      rdev->mode_info.tv_std_property,
-                                                      radeon_combios_get_tv_info(rdev));
-                        /* no HPD on analog connectors */
-                        radeon_connector->hpd.hpd = RADEON_HPD_NONE;
-                }
+                drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
+                drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
+                radeon_connector->dac_load_detect = true;
+                /* RS400,RC410,RS480 chipset seems to report a lot
+                 * of false positive on load detect, we haven't yet
+                 * found a way to make load detect reliable on those
+                 * chipset, thus just disable it for TV.
+                 */
+                if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480)
+                        radeon_connector->dac_load_detect = false;
+                drm_connector_attach_property(&radeon_connector->base,
+                                              rdev->mode_info.load_detect_property,
+                                              radeon_connector->dac_load_detect);
+                drm_connector_attach_property(&radeon_connector->base,
+                                              rdev->mode_info.tv_std_property,
+                                              radeon_combios_get_tv_info(rdev));
+                /* no HPD on analog connectors */
+                radeon_connector->hpd.hpd = RADEON_HPD_NONE;
                 break;
         case DRM_MODE_CONNECTOR_LVDS:
                 drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 69b3c2291e92..256d204a6d24 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -293,30 +293,20 @@ bool radeon_card_posted(struct radeon_device *rdev)
 void radeon_update_bandwidth_info(struct radeon_device *rdev)
 {
         fixed20_12 a;
-        u32 sclk, mclk;
+        u32 sclk = rdev->pm.current_sclk;
+        u32 mclk = rdev->pm.current_mclk;
 
-        if (rdev->flags & RADEON_IS_IGP) {
-                sclk = radeon_get_engine_clock(rdev);
-                mclk = rdev->clock.default_mclk;
-
-                a.full = dfixed_const(100);
-                rdev->pm.sclk.full = dfixed_const(sclk);
-                rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
-                rdev->pm.mclk.full = dfixed_const(mclk);
-                rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
+        /* sclk/mclk in Mhz */
+        a.full = dfixed_const(100);
+        rdev->pm.sclk.full = dfixed_const(sclk);
+        rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
+        rdev->pm.mclk.full = dfixed_const(mclk);
+        rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
 
+        if (rdev->flags & RADEON_IS_IGP) {
                 a.full = dfixed_const(16);
                 /* core_bandwidth = sclk(Mhz) * 16 */
                 rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
-        } else {
-                sclk = radeon_get_engine_clock(rdev);
-                mclk = radeon_get_memory_clock(rdev);
-
-                a.full = dfixed_const(100);
-                rdev->pm.sclk.full = dfixed_const(sclk);
-                rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
-                rdev->pm.mclk.full = dfixed_const(mclk);
-                rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
         }
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 6dd434ad2429..127a395f70fb 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1140,17 +1140,18 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
                                 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
                         else
                                 radeon_crtc->rmx_type = RMX_OFF;
-                        src_v = crtc->mode.vdisplay;
-                        dst_v = radeon_crtc->native_mode.vdisplay;
-                        src_h = crtc->mode.hdisplay;
-                        dst_h = radeon_crtc->native_mode.vdisplay;
                         /* copy native mode */
                         memcpy(&radeon_crtc->native_mode,
                                &radeon_encoder->native_mode,
                                 sizeof(struct drm_display_mode));
+                        src_v = crtc->mode.vdisplay;
+                        dst_v = radeon_crtc->native_mode.vdisplay;
+                        src_h = crtc->mode.hdisplay;
+                        dst_h = radeon_crtc->native_mode.hdisplay;
 
                         /* fix up for overscan on hdmi */
                         if (ASIC_IS_AVIVO(rdev) &&
+                            (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
                             ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
                              ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
                               drm_detect_hdmi_monitor(radeon_connector->edid) &&
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 0416804d8f30..6a13ee38a5b9 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -213,7 +213,7 @@ static void post_xfer(struct i2c_adapter *i2c_adap)
 
 static u32 radeon_get_i2c_prescale(struct radeon_device *rdev)
 {
-        u32 sclk = radeon_get_engine_clock(rdev);
+        u32 sclk = rdev->pm.current_sclk;
         u32 prescale = 0;
         u32 nm;
         u8 n, m, loop;
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 5eee3c41d124..8fbbe1c6ebbd 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -203,6 +203,10 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
  */
 int radeon_driver_firstopen_kms(struct drm_device *dev)
 {
+        struct radeon_device *rdev = dev->dev_private;
+
+        if (rdev->powered_down)
+                return -EINVAL;
         return 0;
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 8f93e2b4b0c8..17a6602b5885 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -204,7 +204,7 @@ struct radeon_i2c_chan {
 
 /* mostly for macs, but really any system without connector tables */
 enum radeon_connector_table {
-        CT_NONE,
+        CT_NONE = 0,
         CT_GENERIC,
         CT_IBOOK,
         CT_POWERBOOK_EXTERNAL,
@@ -215,6 +215,7 @@ enum radeon_connector_table {
         CT_IMAC_G5_ISIGHT,
         CT_EMAC,
         CT_RN50_POWER,
+        CT_MAC_X800,
 };
 
 enum radeon_dvo_chip {
@@ -600,7 +601,6 @@ extern bool radeon_get_atom_connector_info_from_supported_devices_table(struct d
 void radeon_enc_destroy(struct drm_encoder *encoder);
 void radeon_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
 void radeon_combios_asic_init(struct drm_device *dev);
-extern int radeon_static_clocks_init(struct drm_device *dev);
 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
                                         struct drm_display_mode *mode,
                                         struct drm_display_mode *adjusted_mode);
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index f1c796810117..bfa59db374d2 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -905,6 +905,54 @@ static void rv770_gpu_init(struct radeon_device *rdev)
 
 }
 
+static int rv770_vram_scratch_init(struct radeon_device *rdev)
+{
+        int r;
+        u64 gpu_addr;
+
+        if (rdev->vram_scratch.robj == NULL) {
+                r = radeon_bo_create(rdev, NULL, RADEON_GPU_PAGE_SIZE,
+                                        true, RADEON_GEM_DOMAIN_VRAM,
+                                        &rdev->vram_scratch.robj);
+                if (r) {
+                        return r;
+                }
+        }
+
+        r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
+        if (unlikely(r != 0))
+                return r;
+        r = radeon_bo_pin(rdev->vram_scratch.robj,
+                          RADEON_GEM_DOMAIN_VRAM, &gpu_addr);
+        if (r) {
+                radeon_bo_unreserve(rdev->vram_scratch.robj);
+                return r;
+        }
+        r = radeon_bo_kmap(rdev->vram_scratch.robj,
+                                (void **)&rdev->vram_scratch.ptr);
+        if (r)
+                radeon_bo_unpin(rdev->vram_scratch.robj);
+        radeon_bo_unreserve(rdev->vram_scratch.robj);
+
+        return r;
+}
+
+static void rv770_vram_scratch_fini(struct radeon_device *rdev)
+{
+        int r;
+
+        if (rdev->vram_scratch.robj == NULL) {
+                return;
+        }
+        r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
+        if (likely(r == 0)) {
+                radeon_bo_kunmap(rdev->vram_scratch.robj);
+                radeon_bo_unpin(rdev->vram_scratch.robj);
+                radeon_bo_unreserve(rdev->vram_scratch.robj);
+        }
+        radeon_bo_unref(&rdev->vram_scratch.robj);
+}
+
 int rv770_mc_init(struct radeon_device *rdev)
 {
         u32 tmp;
@@ -970,6 +1018,9 @@ static int rv770_startup(struct radeon_device *rdev)
                 if (r)
                         return r;
         }
+        r = rv770_vram_scratch_init(rdev);
+        if (r)
+                return r;
         rv770_gpu_init(rdev);
         r = r600_blit_init(rdev);
         if (r) {
@@ -1023,11 +1074,6 @@ int rv770_resume(struct radeon_device *rdev)
          */
         /* post card */
         atom_asic_init(rdev->mode_info.atom_context);
-        /* Initialize clocks */
-        r = radeon_clocks_init(rdev);
-        if (r) {
-                return r;
-        }
 
         r = rv770_startup(rdev);
         if (r) {
@@ -1118,9 +1164,6 @@ int rv770_init(struct radeon_device *rdev)
         radeon_surface_init(rdev);
         /* Initialize clocks */
         radeon_get_clock_info(rdev->ddev);
-        r = radeon_clocks_init(rdev);
-        if (r)
-                return r;
         /* Fence driver */
         r = radeon_fence_driver_init(rdev);
         if (r)
@@ -1195,9 +1238,9 @@ void rv770_fini(struct radeon_device *rdev)
         r600_irq_fini(rdev);
         radeon_irq_kms_fini(rdev);
         rv770_pcie_gart_fini(rdev);
+        rv770_vram_scratch_fini(rdev);
         radeon_gem_fini(rdev);
         radeon_fence_driver_fini(rdev);
-        radeon_clocks_fini(rdev);
         radeon_agp_fini(rdev);
         radeon_bo_fini(rdev);
         radeon_atombios_fini(rdev);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 7cffb3e04232..3451a82adba7 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -351,6 +351,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
         INIT_LIST_HEAD(&fbo->lru);
         INIT_LIST_HEAD(&fbo->swap);
         fbo->vm_node = NULL;
+        atomic_set(&fbo->cpu_writers, 0);
 
         fbo->sync_obj = driver->sync_obj_ref(bo->sync_obj);
         kref_init(&fbo->list_kref);
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index ca904799f018..b1e02fffd3cc 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -69,7 +69,7 @@ struct ttm_page_pool {
         spinlock_t              lock;
         bool                    fill_lock;
         struct list_head        list;
-        int                     gfp_flags;
+        gfp_t                   gfp_flags;
         unsigned                npages;
         char                    *name;
         unsigned long           nfrees;
@@ -475,7 +475,7 @@ static void ttm_handle_caching_state_failure(struct list_head *pages,
  * This function is reentrant if caller updates count depending on number of
  * pages returned in pages array.
  */
-static int ttm_alloc_new_pages(struct list_head *pages, int gfp_flags,
+static int ttm_alloc_new_pages(struct list_head *pages, gfp_t gfp_flags,
                 int ttm_flags, enum ttm_caching_state cstate, unsigned count)
 {
         struct page **caching_array;
@@ -666,7 +666,7 @@ int ttm_get_pages(struct list_head *pages, int flags,
 {
         struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
         struct page *p = NULL;
-        int gfp_flags = GFP_USER;
+        gfp_t gfp_flags = GFP_USER;
         int r;
 
         /* set zero flag for page allocation if required */
@@ -818,7 +818,7 @@ int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
         return 0;
 }
 
-void ttm_page_alloc_fini()
+void ttm_page_alloc_fini(void)
 {
         int i;
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
index 2ff5cf78235f..7083b1a24df3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -335,7 +335,8 @@ static void vmw_ldu_connector_restore(struct drm_connector *connector)
 }
 
 static enum drm_connector_status
-        vmw_ldu_connector_detect(struct drm_connector *connector)
+        vmw_ldu_connector_detect(struct drm_connector *connector,
+                                 bool force)
 {
         if (vmw_connector_to_ldu(connector)->pref_active)
                 return connector_status_connected;
@@ -516,7 +517,7 @@ static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
 
         drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
                            DRM_MODE_CONNECTOR_LVDS);
-        connector->status = vmw_ldu_connector_detect(connector);
+        connector->status = vmw_ldu_connector_detect(connector, true);
 
         drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
                          DRM_MODE_ENCODER_LVDS);
@@ -610,7 +611,7 @@ int vmw_kms_ldu_update_layout(struct vmw_private *dev_priv, unsigned num,
                         ldu->pref_height = 600;
                         ldu->pref_active = false;
                 }
-                con->status = vmw_ldu_connector_detect(con);
+                con->status = vmw_ldu_connector_detect(con, true);
         }
 
         mutex_unlock(&dev->mode_config.mutex);
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index b87569e96b16..f366f968155a 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -598,7 +598,7 @@ static inline void vga_update_device_decodes(struct vga_device *vgadev,
         pr_debug("vgaarb: decoding count now is: %d\n", vga_decode_count);
 }
 
-void __vga_set_legacy_decoding(struct pci_dev *pdev, unsigned int decodes, bool userspace)
+static void __vga_set_legacy_decoding(struct pci_dev *pdev, unsigned int decodes, bool userspace)
 {
         struct vga_device *vgadev;
         unsigned long flags;
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 0c52899be964..3f7292486024 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1285,8 +1285,11 @@ static const struct hid_device_id hid_blacklist[] = {
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
@@ -1578,7 +1581,6 @@ static const struct hid_device_id hid_ignore_list[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT)},
         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 85c6d13c9ffa..765a4f53eb5c 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -105,6 +105,7 @@
 
 #define USB_VENDOR_ID_ASUS              0x0486
 #define USB_DEVICE_ID_ASUS_T91MT        0x0185
+#define USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO    0x0186
 
 #define USB_VENDOR_ID_ASUSTEK           0x0b05
 #define USB_DEVICE_ID_ASUSTEK_LCM       0x1726
@@ -128,6 +129,7 @@
 
 #define USB_VENDOR_ID_BTC               0x046e
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE 0x5578
+#define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2       0x5577
 
 #define USB_VENDOR_ID_CANDO             0x2087
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH 0x0a01
@@ -149,6 +151,7 @@
 
 #define USB_VENDOR_ID_CHICONY           0x04f2
 #define USB_DEVICE_ID_CHICONY_TACTICAL_PAD      0x0418
+#define USB_DEVICE_ID_CHICONY_MULTI_TOUCH       0xb19d
 
 #define USB_VENDOR_ID_CIDC              0x1677
 
@@ -507,6 +510,7 @@
 #define USB_VENDOR_ID_UCLOGIC           0x5543
 #define USB_DEVICE_ID_UCLOGIC_TABLET_PF1209     0x0042
 #define USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U    0x0003
+#define USB_DEVICE_ID_UCLOGIC_TABLET_KNA5       0x6001
 
 #define USB_VENDOR_ID_VERNIER           0x08f7
 #define USB_DEVICE_ID_VERNIER_LABPRO    0x0001
diff --git a/drivers/hid/hid-mosart.c b/drivers/hid/hid-mosart.c
index e91437c18906..ac5421d568f1 100644
--- a/drivers/hid/hid-mosart.c
+++ b/drivers/hid/hid-mosart.c
@@ -239,6 +239,7 @@ static void mosart_remove(struct hid_device *hdev)
 
 static const struct hid_device_id mosart_devices[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
         { }
 };
 MODULE_DEVICE_TABLE(hid, mosart_devices);
diff --git a/drivers/hid/hid-topseed.c b/drivers/hid/hid-topseed.c
index 5771f851f856..956ed9ac19d4 100644
--- a/drivers/hid/hid-topseed.c
+++ b/drivers/hid/hid-topseed.c
@@ -64,6 +64,7 @@ static int ts_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 static const struct hid_device_id ts_devices[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
         { }
 };
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index b729c0286679..599041a7f670 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -828,6 +828,7 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
                 }
         } else {
                 int skipped_report_id = 0;
+                int report_id = buf[0];
                 if (buf[0] == 0x0) {
                         /* Don't send the Report ID */
                         buf++;
@@ -837,7 +838,7 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
                 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
                         HID_REQ_SET_REPORT,
                         USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-                        ((report_type + 1) << 8) | *buf,
+                        ((report_type + 1) << 8) | report_id,
                         interface->desc.bInterfaceNumber, buf, count,
                         USB_CTRL_SET_TIMEOUT);
                 /* count also the report id, if this was a numbered report. */
@@ -1445,6 +1446,11 @@ static const struct hid_device_id hid_usb_table[] = {
         { }
 };
 
+struct usb_interface *usbhid_find_interface(int minor)
+{
+        return usb_find_interface(&hid_driver, minor);
+}
+
 static struct hid_driver hid_usb_driver = {
         .name = "generic-usb",
         .id_table = hid_usb_table,
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 2643d3147621..70da3181c8a0 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -33,6 +33,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
         { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
         { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
+        { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
         { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
@@ -69,6 +70,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
 
@@ -77,6 +79,8 @@ static const struct hid_blacklist {
 
         { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
 
+        { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
+
         { 0, 0 }
 };
 
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 0a29c51114aa..681e620eb95b 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -270,7 +270,7 @@ static int hiddev_open(struct inode *inode, struct file *file)
         struct hiddev *hiddev;
         int res;
 
-        intf = usb_find_interface(&hiddev_driver, iminor(inode));
+        intf = usbhid_find_interface(iminor(inode));
         if (!intf)
                 return -ENODEV;
         hid = usb_get_intfdata(intf);
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 693fd3e720df..89d2e847dcc6 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -42,6 +42,7 @@ void usbhid_submit_report
 (struct hid_device *hid, struct hid_report *report, unsigned char dir);
 int usbhid_get_power(struct hid_device *hid);
 void usbhid_put_power(struct hid_device *hid);
+struct usb_interface *usbhid_find_interface(int minor);
 
 /* iofl flags */
 #define HID_CTRL_RUNNING        1
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 4d4d09bdec0a..97499d00615a 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -409,7 +409,7 @@ config SENSORS_CORETEMP
 
 config SENSORS_PKGTEMP
         tristate "Intel processor package temperature sensor"
-        depends on X86 && PCI && EXPERIMENTAL
+        depends on X86 && EXPERIMENTAL
         help
           If you say yes here you get support for the package level temperature
           sensor inside your CPU. Check documentation/driver for details.
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index 15c1a9616af3..0683e6be662c 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -79,7 +79,7 @@ struct adm1031_data {
         int chip_type;
         char valid;             /* !=0 if following fields are valid */
         unsigned long last_updated;     /* In jiffies */
-        unsigned int update_rate;       /* In milliseconds */
+        unsigned int update_interval;   /* In milliseconds */
         /* The chan_select_table contains the possible configurations for
          * auto fan control.
          */
@@ -743,23 +743,23 @@ static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12);
 static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13);
 static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14);
 
-/* Update Rate */
-static const unsigned int update_rates[] = {
+/* Update Interval */
+static const unsigned int update_intervals[] = {
         16000, 8000, 4000, 2000, 1000, 500, 250, 125,
 };
 
-static ssize_t show_update_rate(struct device *dev,
-                                struct device_attribute *attr, char *buf)
+static ssize_t show_update_interval(struct device *dev,
+                                    struct device_attribute *attr, char *buf)
 {
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
 
-        return sprintf(buf, "%u\n", data->update_rate);
+        return sprintf(buf, "%u\n", data->update_interval);
 }
 
-static ssize_t set_update_rate(struct device *dev,
-                               struct device_attribute *attr,
-                               const char *buf, size_t count)
+static ssize_t set_update_interval(struct device *dev,
+                                   struct device_attribute *attr,
+                                   const char *buf, size_t count)
 {
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
@@ -771,12 +771,15 @@ static ssize_t set_update_rate(struct device *dev,
         if (err)
                 return err;
 
-        /* find the nearest update rate from the table */
-        for (i = 0; i < ARRAY_SIZE(update_rates) - 1; i++) {
-                if (val >= update_rates[i])
+        /*
+         * Find the nearest update interval from the table.
+         * Use it to determine the matching update rate.
+         */
+        for (i = 0; i < ARRAY_SIZE(update_intervals) - 1; i++) {
+                if (val >= update_intervals[i])
                         break;
         }
-        /* if not found, we point to the last entry (lowest update rate) */
+        /* if not found, we point to the last entry (lowest update interval) */
 
         /* set the new update rate while preserving other settings */
         reg = adm1031_read_value(client, ADM1031_REG_FAN_FILTER);
@@ -785,14 +788,14 @@ static ssize_t set_update_rate(struct device *dev,
         adm1031_write_value(client, ADM1031_REG_FAN_FILTER, reg);
 
         mutex_lock(&data->update_lock);
-        data->update_rate = update_rates[i];
+        data->update_interval = update_intervals[i];
         mutex_unlock(&data->update_lock);
 
         return count;
 }
 
-static DEVICE_ATTR(update_rate, S_IRUGO | S_IWUSR, show_update_rate,
-                   set_update_rate);
+static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval,
+                   set_update_interval);
 
 static struct attribute *adm1031_attributes[] = {
         &sensor_dev_attr_fan1_input.dev_attr.attr,
@@ -830,7 +833,7 @@ static struct attribute *adm1031_attributes[] = {
 
         &sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr,
 
-        &dev_attr_update_rate.attr,
+        &dev_attr_update_interval.attr,
         &dev_attr_alarms.attr,
 
         NULL
@@ -981,7 +984,8 @@ static void adm1031_init_client(struct i2c_client *client)
         mask = ADM1031_UPDATE_RATE_MASK;
         read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER);
         i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT;
-        data->update_rate = update_rates[i];
+        /* Save it as update interval */
+        data->update_interval = update_intervals[i];
 }
 
 static struct adm1031_data *adm1031_update_device(struct device *dev)
@@ -993,7 +997,8 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
 
         mutex_lock(&data->update_lock);
 
-        next_update = data->last_updated + msecs_to_jiffies(data->update_rate);
+        next_update = data->last_updated
+          + msecs_to_jiffies(data->update_interval);
         if (time_after(jiffies, next_update) || !data->valid) {
 
                 dev_dbg(&client->dev, "Starting adm1031 update\n");
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index de8111114f46..a23b17a78ace 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -36,6 +36,7 @@
 #include <linux/pci.h>
 #include <asm/msr.h>
 #include <asm/processor.h>
+#include <asm/smp.h>
 
 #define DRVNAME "coretemp"
 
@@ -423,9 +424,18 @@ static int __cpuinit coretemp_device_add(unsigned int cpu)
         int err;
         struct platform_device *pdev;
         struct pdev_entry *pdev_entry;
-#ifdef CONFIG_SMP
         struct cpuinfo_x86 *c = &cpu_data(cpu);
-#endif
+
+        /*
+         * CPUID.06H.EAX[0] indicates whether the CPU has thermal
+         * sensors. We check this bit only, all the early CPUs
+         * without thermal sensors will be filtered out.
+         */
+        if (!cpu_has(c, X86_FEATURE_DTS)) {
+                printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
+                       " has no thermal sensor.\n", c->x86_model);
+                return 0;
+        }
 
         mutex_lock(&pdev_list_mutex);
 
@@ -482,14 +492,22 @@ exit:
 
 static void coretemp_device_remove(unsigned int cpu)
 {
-        struct pdev_entry *p, *n;
+        struct pdev_entry *p;
+        unsigned int i;
+
         mutex_lock(&pdev_list_mutex);
-        list_for_each_entry_safe(p, n, &pdev_list, list) {
-                if (p->cpu == cpu) {
-                        platform_device_unregister(p->pdev);
-                        list_del(&p->list);
-                        kfree(p);
-                }
+        list_for_each_entry(p, &pdev_list, list) {
+                if (p->cpu != cpu)
+                        continue;
+
+                platform_device_unregister(p->pdev);
+                list_del(&p->list);
+                mutex_unlock(&pdev_list_mutex);
+                kfree(p);
+                for_each_cpu(i, cpu_sibling_mask(cpu))
+                        if (i != cpu && !coretemp_device_add(i))
+                                break;
+                return;
         }
         mutex_unlock(&pdev_list_mutex);
 }
@@ -527,30 +545,21 @@ static int __init coretemp_init(void)
         if (err)
                 goto exit;
 
-        for_each_online_cpu(i) {
-                struct cpuinfo_x86 *c = &cpu_data(i);
-                /*
-                 * CPUID.06H.EAX[0] indicates whether the CPU has thermal
-                 * sensors. We check this bit only, all the early CPUs
-                 * without thermal sensors will be filtered out.
-                 */
-                if (c->cpuid_level >= 6 && (cpuid_eax(0x06) & 0x01))
-                        coretemp_device_add(i);
-                else {
-                        printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
-                                " has no thermal sensor.\n", c->x86_model);
-                }
-        }
+        for_each_online_cpu(i)
+                coretemp_device_add(i);
+
+#ifndef CONFIG_HOTPLUG_CPU
         if (list_empty(&pdev_list)) {
                 err = -ENODEV;
                 goto exit_driver_unreg;
         }
+#endif
 
         register_hotcpu_notifier(&coretemp_cpu_notifier);
         return 0;
 
-exit_driver_unreg:
 #ifndef CONFIG_HOTPLUG_CPU
+exit_driver_unreg:
         platform_driver_unregister(&coretemp_driver);
 #endif
 exit:
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index 5b58b20dead1..8dee3f38fdfb 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -308,7 +308,6 @@ static int emc1403_probe(struct i2c_client *client,
         res = sysfs_create_group(&client->dev.kobj, &m_thermal_gr);
         if (res) {
                 dev_warn(&client->dev, "create group failed\n");
-                hwmon_device_unregister(data->hwmon_dev);
                 goto thermal_error1;
         }
         data->hwmon_dev = hwmon_device_register(&client->dev);
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index 0f58ecc5334d..9638d58f99fd 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -79,7 +79,7 @@ enum chips { f75373, f75375 };
 #define F75375_REG_PWM2_DROP_DUTY       0x6C
 
 #define FAN_CTRL_LINEAR(nr)             (4 + nr)
-#define FAN_CTRL_MODE(nr)               (5 + ((nr) * 2))
+#define FAN_CTRL_MODE(nr)               (4 + ((nr) * 2))
 
 /*
  * Data structures and manipulation thereof
@@ -298,7 +298,7 @@ static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
                 return -EINVAL;
 
         fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
-        fanmode = ~(3 << FAN_CTRL_MODE(nr));
+        fanmode &= ~(3 << FAN_CTRL_MODE(nr));
 
         switch (val) {
         case 0: /* Full speed */
@@ -350,7 +350,7 @@ static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
 
         mutex_lock(&data->update_lock);
         conf = f75375_read8(client, F75375_REG_CONFIG1);
-        conf = ~(1 << FAN_CTRL_LINEAR(nr));
+        conf &= ~(1 << FAN_CTRL_LINEAR(nr));
 
         if (val == 0)
                 conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index 7580f55e67e3..36e957532230 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -221,6 +221,8 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
         AXIS_DMI_MATCH("HPB442x", "HP ProBook 442", xy_rotated_left),
         AXIS_DMI_MATCH("HPB452x", "HP ProBook 452", y_inverted),
         AXIS_DMI_MATCH("HPB522x", "HP ProBook 522", xy_swap),
+        AXIS_DMI_MATCH("HPB532x", "HP ProBook 532", y_inverted),
+        AXIS_DMI_MATCH("Mini5102", "HP Mini 5102", xy_rotated_left_usd),
         { NULL, }
 /* Laptop models without axis info (yet):
  * "NC6910" "HP Compaq 6910"
diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index 6138f036b159..fc591ae53107 100644
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -277,7 +277,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
         wake_up_interruptible(&lis3_dev.misc_wait);
         kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN);
 out:
-        if (lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
+        if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
             lis3_dev.idev->input->users)
                 return IRQ_WAKE_THREAD;
         return IRQ_HANDLED;
@@ -718,7 +718,7 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
          * io-apic is not configurable (and generates a warning) but I keep it
          * in case of support for other hardware.
          */
-        if (dev->whoami == WAI_8B)
+        if (dev->pdata && dev->whoami == WAI_8B)
                 thread_fn = lis302dl_interrupt_thread1_8b;
         else
                 thread_fn = NULL;
diff --git a/drivers/hwmon/lis3lv02d_i2c.c b/drivers/hwmon/lis3lv02d_i2c.c
index dc1f5402c1d7..8e5933b72d19 100644
--- a/drivers/hwmon/lis3lv02d_i2c.c
+++ b/drivers/hwmon/lis3lv02d_i2c.c
@@ -121,7 +121,7 @@ static int lis3lv02d_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
 {
         struct lis3lv02d *lis3 = i2c_get_clientdata(client);
 
-        if (!lis3->pdata->wakeup_flags)
+        if (!lis3->pdata || !lis3->pdata->wakeup_flags)
                 lis3lv02d_poweroff(lis3);
         return 0;
 }
@@ -130,7 +130,7 @@ static int lis3lv02d_i2c_resume(struct i2c_client *client)
 {
         struct lis3lv02d *lis3 = i2c_get_clientdata(client);
 
-        if (!lis3->pdata->wakeup_flags)
+        if (!lis3->pdata || !lis3->pdata->wakeup_flags)
                 lis3lv02d_poweron(lis3);
         return 0;
 }
diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c
index 82b16808a274..b9be5e3a22b3 100644
--- a/drivers/hwmon/lis3lv02d_spi.c
+++ b/drivers/hwmon/lis3lv02d_spi.c
@@ -92,7 +92,7 @@ static int lis3lv02d_spi_suspend(struct spi_device *spi, pm_message_t mesg)
 {
         struct lis3lv02d *lis3 = spi_get_drvdata(spi);
 
-        if (!lis3->pdata->wakeup_flags)
+        if (!lis3->pdata || !lis3->pdata->wakeup_flags)
                 lis3lv02d_poweroff(&lis3_dev);
 
         return 0;
@@ -102,7 +102,7 @@ static int lis3lv02d_spi_resume(struct spi_device *spi)
 {
         struct lis3lv02d *lis3 = spi_get_drvdata(spi);
 
-        if (!lis3->pdata->wakeup_flags)
+        if (!lis3->pdata || !lis3->pdata->wakeup_flags)
                 lis3lv02d_poweron(lis3);
 
         return 0;
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
index 94741d42112d..464340f25496 100644
--- a/drivers/hwmon/lm95241.c
+++ b/drivers/hwmon/lm95241.c
@@ -91,7 +91,7 @@ static struct lm95241_data *lm95241_update_device(struct device *dev);
 struct lm95241_data {
         struct device *hwmon_dev;
         struct mutex update_lock;
-        unsigned long last_updated, rate; /* in jiffies */
+        unsigned long last_updated, interval; /* in jiffies */
         char valid; /* zero until following fields are valid */
         /* registers values */
         u8 local_h, local_l; /* local */
@@ -114,23 +114,23 @@ show_temp(local);
 show_temp(remote1);
 show_temp(remote2);
 
-static ssize_t show_rate(struct device *dev, struct device_attribute *attr,
+static ssize_t show_interval(struct device *dev, struct device_attribute *attr,
                          char *buf)
 {
         struct lm95241_data *data = lm95241_update_device(dev);
 
-        snprintf(buf, PAGE_SIZE - 1, "%lu\n", 1000 * data->rate / HZ);
+        snprintf(buf, PAGE_SIZE - 1, "%lu\n", 1000 * data->interval / HZ);
         return strlen(buf);
 }
 
-static ssize_t set_rate(struct device *dev, struct device_attribute *attr,
+static ssize_t set_interval(struct device *dev, struct device_attribute *attr,
                         const char *buf, size_t count)
 {
         struct i2c_client *client = to_i2c_client(dev);
         struct lm95241_data *data = i2c_get_clientdata(client);
 
-        strict_strtol(buf, 10, &data->rate);
-        data->rate = data->rate * HZ / 1000;
+        strict_strtol(buf, 10, &data->interval);
+        data->interval = data->interval * HZ / 1000;
 
         return count;
 }
@@ -286,7 +286,8 @@ static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_min1, set_min1);
 static DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_min2, set_min2);
 static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_max1, set_max1);
 static DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_max2, set_max2);
-static DEVICE_ATTR(rate, S_IWUSR | S_IRUGO, show_rate, set_rate);
+static DEVICE_ATTR(update_interval, S_IWUSR | S_IRUGO, show_interval,
+                   set_interval);
 
 static struct attribute *lm95241_attributes[] = {
         &dev_attr_temp1_input.attr,
@@ -298,7 +299,7 @@ static struct attribute *lm95241_attributes[] = {
         &dev_attr_temp3_min.attr,
         &dev_attr_temp2_max.attr,
         &dev_attr_temp3_max.attr,
-        &dev_attr_rate.attr,
+        &dev_attr_update_interval.attr,
         NULL
 };
 
@@ -376,7 +377,7 @@ static void lm95241_init_client(struct i2c_client *client)
 {
         struct lm95241_data *data = i2c_get_clientdata(client);
 
-        data->rate = HZ;    /* 1 sec default */
+        data->interval = HZ;    /* 1 sec default */
         data->valid = 0;
         data->config = CFG_CR0076;
         data->model = 0;
@@ -410,7 +411,7 @@ static struct lm95241_data *lm95241_update_device(struct device *dev)
 
         mutex_lock(&data->update_lock);
 
-        if (time_after(jiffies, data->last_updated + data->rate) ||
+        if (time_after(jiffies, data->last_updated + data->interval) ||
             !data->valid) {
                 dev_dbg(&client->dev, "Updating lm95241 data.\n");
                 data->local_h =
diff --git a/drivers/hwmon/pkgtemp.c b/drivers/hwmon/pkgtemp.c
index 74157fcda6ed..f11903936c8b 100644
--- a/drivers/hwmon/pkgtemp.c
+++ b/drivers/hwmon/pkgtemp.c
@@ -33,7 +33,6 @@
 #include <linux/list.h>
 #include <linux/platform_device.h>
 #include <linux/cpu.h>
-#include <linux/pci.h>
 #include <asm/msr.h>
 #include <asm/processor.h>
 
@@ -224,7 +223,7 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
 
         err = sysfs_create_group(&pdev->dev.kobj, &pkgtemp_group);
         if (err)
-                goto exit_free;
+                goto exit_dev;
 
         data->hwmon_dev = hwmon_device_register(&pdev->dev);
         if (IS_ERR(data->hwmon_dev)) {
@@ -238,6 +237,8 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
 
 exit_class:
         sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
+exit_dev:
+        device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
 exit_free:
         kfree(data);
 exit:
@@ -250,6 +251,7 @@ static int __devexit pkgtemp_remove(struct platform_device *pdev)
 
         hwmon_device_unregister(data->hwmon_dev);
         sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
+        device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
         platform_set_drvdata(pdev, NULL);
         kfree(data);
         return 0;
@@ -281,9 +283,10 @@ static int __cpuinit pkgtemp_device_add(unsigned int cpu)
         int err;
         struct platform_device *pdev;
         struct pdev_entry *pdev_entry;
-#ifdef CONFIG_SMP
         struct cpuinfo_x86 *c = &cpu_data(cpu);
-#endif
+
+        if (!cpu_has(c, X86_FEATURE_PTS))
+                return 0;
 
         mutex_lock(&pdev_list_mutex);
 
@@ -339,17 +342,18 @@ exit:
 #ifdef CONFIG_HOTPLUG_CPU
 static void pkgtemp_device_remove(unsigned int cpu)
 {
-        struct pdev_entry *p, *n;
+        struct pdev_entry *p;
         unsigned int i;
         int err;
 
         mutex_lock(&pdev_list_mutex);
-        list_for_each_entry_safe(p, n, &pdev_list, list) {
+        list_for_each_entry(p, &pdev_list, list) {
                 if (p->cpu != cpu)
                         continue;
 
                 platform_device_unregister(p->pdev);
                 list_del(&p->list);
+                mutex_unlock(&pdev_list_mutex);
                 kfree(p);
                 for_each_cpu(i, cpu_core_mask(cpu)) {
                         if (i != cpu) {
@@ -358,7 +362,7 @@ static void pkgtemp_device_remove(unsigned int cpu)
                                         break;
                         }
                 }
-                break;
+                return;
         }
         mutex_unlock(&pdev_list_mutex);
 }
@@ -399,11 +403,6 @@ static int __init pkgtemp_init(void)
                 goto exit;
 
         for_each_online_cpu(i) {
-                struct cpuinfo_x86 *c = &cpu_data(i);
-
-                if (!cpu_has(c, X86_FEATURE_PTS))
-                        continue;
-
                 err = pkgtemp_device_add(i);
                 if (err)
                         goto exit_devices_unreg;
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index e96e69dd36fb..072c58008a63 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -127,6 +127,7 @@ superio_enter(int ioreg)
 static inline void
 superio_exit(int ioreg)
 {
+        outb(0xaa, ioreg);
         outb(0x02, ioreg);
         outb(0x02, ioreg + 1);
 }
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 7674efb55378..b33c78586bfc 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -680,6 +680,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 
         if (r == 0)
                 r = num;
+
+        omap_i2c_wait_for_bb(dev);
 out:
         omap_i2c_idle(dev);
         return r;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 4c3d1bfec0c5..068cef0a987a 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1448,19 +1448,13 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
                 if (hwif == NULL)
                         continue;
 
-                if (hwif->present)
-                        hwif_register_devices(hwif);
-        }
-
-        ide_host_for_each_port(i, hwif, host) {
-                if (hwif == NULL)
-                        continue;
-
                 ide_sysfs_register_port(hwif);
                 ide_proc_register_port(hwif);
 
-                if (hwif->present)
+                if (hwif->present) {
                         ide_proc_port_register_devices(hwif);
+                        hwif_register_devices(hwif);
+                }
         }
 
         return j ? 0 : -1;
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h
index 8f0caf7d4482..78fbe9ffe7f0 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h
@@ -53,7 +53,7 @@
 #define T3_MAX_PBL_SIZE 256
 #define T3_MAX_RQ_SIZE 1024
 #define T3_MAX_QP_DEPTH (T3_MAX_RQ_SIZE-1)
-#define T3_MAX_CQ_DEPTH 262144
+#define T3_MAX_CQ_DEPTH 65536
 #define T3_MAX_NUM_STAG (1<<15)
 #define T3_MAX_MR_SIZE 0x100000000ULL
 #define T3_PAGESIZE_MASK 0xffff000  /* 4KB-128MB */
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index d88077a21994..13c88871dc3b 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -463,7 +463,8 @@ static int send_connect(struct iwch_ep *ep)
             V_MSS_IDX(mtu_idx) |
             V_L2T_IDX(ep->l2t->idx) | V_TX_CHANNEL(ep->l2t->smt_idx);
         opt0l = V_TOS((ep->tos >> 2) & M_TOS) | V_RCV_BUFSIZ(rcv_win>>10);
-        opt2 = V_FLAVORS_VALID(1) | V_CONG_CONTROL_FLAVOR(cong_flavor);
+        opt2 = F_RX_COALESCE_VALID | V_RX_COALESCE(0) | V_FLAVORS_VALID(1) |
+               V_CONG_CONTROL_FLAVOR(cong_flavor);
         skb->priority = CPL_PRIORITY_SETUP;
         set_arp_failure_handler(skb, act_open_req_arp_failure);
 
@@ -1280,7 +1281,8 @@ static void accept_cr(struct iwch_ep *ep, __be32 peer_ip, struct sk_buff *skb)
             V_MSS_IDX(mtu_idx) |
             V_L2T_IDX(ep->l2t->idx) | V_TX_CHANNEL(ep->l2t->smt_idx);
         opt0l = V_TOS((ep->tos >> 2) & M_TOS) | V_RCV_BUFSIZ(rcv_win>>10);
-        opt2 = V_FLAVORS_VALID(1) | V_CONG_CONTROL_FLAVOR(cong_flavor);
+        opt2 = F_RX_COALESCE_VALID | V_RX_COALESCE(0) | V_FLAVORS_VALID(1) |
+               V_CONG_CONTROL_FLAVOR(cong_flavor);
 
         rpl = cplhdr(skb);
         rpl->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 443cea55daac..61e0efd4ccfb 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -502,7 +502,9 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
 static void nes_retrans_expired(struct nes_cm_node *cm_node)
 {
         struct iw_cm_id *cm_id = cm_node->cm_id;
-        switch (cm_node->state) {
+        enum nes_cm_node_state state = cm_node->state;
+        cm_node->state = NES_CM_STATE_CLOSED;
+        switch (state) {
         case NES_CM_STATE_SYN_RCVD:
         case NES_CM_STATE_CLOSING:
                 rem_ref_cm_node(cm_node->cm_core, cm_node);
@@ -511,7 +513,6 @@ static void nes_retrans_expired(struct nes_cm_node *cm_node)
         case NES_CM_STATE_FIN_WAIT1:
                 if (cm_node->cm_id)
                         cm_id->rem_ref(cm_id);
-                cm_node->state = NES_CM_STATE_CLOSED;
                 send_reset(cm_node, NULL);
                 break;
         default:
@@ -1439,9 +1440,6 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
                 break;
         case NES_CM_STATE_MPAREQ_RCVD:
                 passive_state = atomic_add_return(1, &cm_node->passive_state);
-                if (passive_state ==  NES_SEND_RESET_EVENT)
-                        create_event(cm_node, NES_CM_EVENT_RESET);
-                cm_node->state = NES_CM_STATE_CLOSED;
                 dev_kfree_skb_any(skb);
                 break;
         case NES_CM_STATE_ESTABLISHED:
@@ -1456,6 +1454,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
         case NES_CM_STATE_CLOSED:
                 drop_packet(skb);
                 break;
+        case NES_CM_STATE_FIN_WAIT2:
         case NES_CM_STATE_FIN_WAIT1:
         case NES_CM_STATE_LAST_ACK:
                 cm_node->cm_id->rem_ref(cm_node->cm_id);
@@ -2777,6 +2776,12 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
                 return -EINVAL;
         }
 
+        passive_state = atomic_add_return(1, &cm_node->passive_state);
+        if (passive_state == NES_SEND_RESET_EVENT) {
+                rem_ref_cm_node(cm_node->cm_core, cm_node);
+                return -ECONNRESET;
+        }
+
         /* associate the node with the QP */
         nesqp->cm_node = (void *)cm_node;
         cm_node->nesqp = nesqp;
@@ -2979,9 +2984,6 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
                 printk(KERN_ERR "%s[%u] OFA CM event_handler returned, "
                         "ret=%d\n", __func__, __LINE__, ret);
 
-        passive_state = atomic_add_return(1, &cm_node->passive_state);
-        if (passive_state == NES_SEND_RESET_EVENT)
-                create_event(cm_node, NES_CM_EVENT_RESET);
         return 0;
 }
 
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index f8233c851c69..1980a461c499 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -3468,6 +3468,19 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
                                 return; /* Ignore it, wait for close complete */
 
                         if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
+                                if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) &&
+                                        (nesqp->ibqp_state == IB_QPS_RTS) &&
+                                        ((nesadapter->eeprom_version >> 16) != NES_A0)) {
+                                        spin_lock_irqsave(&nesqp->lock, flags);
+                                        nesqp->hw_iwarp_state = iwarp_state;
+                                        nesqp->hw_tcp_state = tcp_state;
+                                        nesqp->last_aeq = async_event_id;
+                                        next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING;
+                                        nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
+                                        spin_unlock_irqrestore(&nesqp->lock, flags);
+                                        nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
+                                        nes_cm_disconn(nesqp);
+                                }
                                 nesqp->cm_id->add_ref(nesqp->cm_id);
                                 schedule_nes_timer(nesqp->cm_node, (struct sk_buff *)nesqp,
                                                 NES_TIMER_TYPE_CLOSE, 1, 0);
@@ -3477,7 +3490,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
                                                 nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount),
                                                 async_event_id, nesqp->last_aeq, tcp_state);
                         }
-
                         break;
                 case NES_AEQE_AEID_LLP_CLOSE_COMPLETE:
                         if (nesqp->term_flags) {
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index aa9183db32b1..1204c3432b63 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -45,6 +45,7 @@
 #define NES_PHY_TYPE_KR        9
 
 #define NES_MULTICAST_PF_MAX 8
+#define NES_A0 3
 
 enum pci_regs {
         NES_INT_STAT = 0x0000,
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 6dfdd49cdbcf..10560c796fd6 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -1446,14 +1446,14 @@ static int nes_netdev_set_pauseparam(struct net_device *netdev,
                                 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
                 u32temp |= NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
                 nes_write_indexed(nesdev,
-                                NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE + (nesdev->mac_index*0x200), u32temp);
+                                NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
                 nesdev->disable_tx_flow_control = 0;
         } else if ((et_pauseparam->tx_pause == 0) && (nesdev->disable_tx_flow_control == 0)) {
                 u32temp = nes_read_indexed(nesdev,
                                 NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
                 u32temp &= ~NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
                 nes_write_indexed(nesdev,
-                                NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE + (nesdev->mac_index*0x200), u32temp);
+                                NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
                 nesdev->disable_tx_flow_control = 1;
         }
         if ((et_pauseparam->rx_pause == 1) && (nesdev->disable_rx_flow_control == 1)) {
diff --git a/drivers/input/input.c b/drivers/input/input.c
index a9b025f4147a..ab6982056518 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1599,11 +1599,14 @@ EXPORT_SYMBOL(input_free_device);
  * @dev: input device supporting MT events and finger tracking
  * @num_slots: number of slots used by the device
  *
- * This function allocates all necessary memory for MT slot handling
- * in the input device, and adds ABS_MT_SLOT to the device capabilities.
+ * This function allocates all necessary memory for MT slot handling in the
+ * input device, and adds ABS_MT_SLOT to the device capabilities. All slots
+ * are initially marked as unused iby setting ABS_MT_TRACKING_ID to -1.
  */
 int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots)
 {
+        int i;
+
         if (!num_slots)
                 return 0;
 
@@ -1614,6 +1617,10 @@ int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots)
         dev->mtsize = num_slots;
         input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0);
 
+        /* Mark slots as 'unused' */
+        for (i = 0; i < num_slots; i++)
+                dev->mt[i].abs[ABS_MT_TRACKING_ID - ABS_MT_FIRST] = -1;
+
         return 0;
 }
 EXPORT_SYMBOL(input_mt_create_slots);
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index ea67c49146a3..b95231763911 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -337,10 +337,14 @@ static void report_finger_data(struct input_dev *input,
                                const struct bcm5974_config *cfg,
                                const struct tp_finger *f)
 {
-        input_report_abs(input, ABS_MT_TOUCH_MAJOR, raw2int(f->force_major));
-        input_report_abs(input, ABS_MT_TOUCH_MINOR, raw2int(f->force_minor));
-        input_report_abs(input, ABS_MT_WIDTH_MAJOR, raw2int(f->size_major));
-        input_report_abs(input, ABS_MT_WIDTH_MINOR, raw2int(f->size_minor));
+        input_report_abs(input, ABS_MT_TOUCH_MAJOR,
+                         raw2int(f->force_major) << 1);
+        input_report_abs(input, ABS_MT_TOUCH_MINOR,
+                         raw2int(f->force_minor) << 1);
+        input_report_abs(input, ABS_MT_WIDTH_MAJOR,
+                         raw2int(f->size_major) << 1);
+        input_report_abs(input, ABS_MT_WIDTH_MINOR,
+                         raw2int(f->size_minor) << 1);
         input_report_abs(input, ABS_MT_ORIENTATION,
                          MAX_FINGER_ORIENTATION - raw2int(f->orientation));
         input_report_abs(input, ABS_MT_POSITION_X, raw2int(f->abs_x));
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 46e4ba0b9246..f58513160480 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1485,8 +1485,8 @@ static int __init i8042_init(void)
 
 static void __exit i8042_exit(void)
 {
-        platform_driver_unregister(&i8042_driver);
         platform_device_unregister(i8042_platform_device);
+        platform_driver_unregister(&i8042_driver);
         i8042_platform_exit();
 
         panic_blink = NULL;
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 40d77ba8fdc1..6e29badb969e 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -243,10 +243,10 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
                         if (features->type == WACOM_G4 ||
                                         features->type == WACOM_MO) {
                                 input_report_abs(input, ABS_DISTANCE, data[6] & 0x3f);
-                                rw = (signed)(data[7] & 0x04) - (data[7] & 0x03);
+                                rw = (data[7] & 0x04) - (data[7] & 0x03);
                         } else {
                                 input_report_abs(input, ABS_DISTANCE, data[7] & 0x3f);
-                                rw = -(signed)data[6];
+                                rw = -(signed char)data[6];
                         }
                         input_report_rel(input, REL_WHEEL, rw);
                 }
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 74dce4ba0262..350eb34f049c 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -81,7 +81,7 @@ static int ns2_led_get_mode(struct ns2_led_data *led_dat,
         int cmd_level;
         int slow_level;
 
-        read_lock(&led_dat->rw_lock);
+        read_lock_irq(&led_dat->rw_lock);
 
         cmd_level = gpio_get_value(led_dat->cmd);
         slow_level = gpio_get_value(led_dat->slow);
@@ -95,7 +95,7 @@ static int ns2_led_get_mode(struct ns2_led_data *led_dat,
                 }
         }
 
-        read_unlock(&led_dat->rw_lock);
+        read_unlock_irq(&led_dat->rw_lock);
 
         return ret;
 }
@@ -104,8 +104,9 @@ static void ns2_led_set_mode(struct ns2_led_data *led_dat,
                              enum ns2_led_modes mode)
 {
         int i;
+        unsigned long flags;
 
-        write_lock(&led_dat->rw_lock);
+        write_lock_irqsave(&led_dat->rw_lock, flags);
 
         for (i = 0; i < ARRAY_SIZE(ns2_led_modval); i++) {
                 if (mode == ns2_led_modval[i].mode) {
@@ -116,7 +117,7 @@ static void ns2_led_set_mode(struct ns2_led_data *led_dat,
                 }
         }
 
-        write_unlock(&led_dat->rw_lock);
+        write_unlock_irqrestore(&led_dat->rw_lock, flags);
 }
 
 static void ns2_led_set(struct led_classdev *led_cdev,
diff --git a/drivers/md/.gitignore b/drivers/md/.gitignore
deleted file mode 100644
index a7afec6b19c6..000000000000
--- a/drivers/md/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-mktables
-raid6altivec*.c
-raid6int*.c
-raid6tables.c
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 1ba1e122e948..ed4900ade93a 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1542,8 +1542,7 @@ void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector)
                    atomic_read(&bitmap->mddev->recovery_active) == 0);
 
         bitmap->mddev->curr_resync_completed = bitmap->mddev->curr_resync;
-        if (bitmap->mddev->persistent)
-                set_bit(MD_CHANGE_CLEAN, &bitmap->mddev->flags);
+        set_bit(MD_CHANGE_CLEAN, &bitmap->mddev->flags);
         sector &= ~((1ULL << CHUNK_BLOCK_SHIFT(bitmap)) - 1);
         s = 0;
         while (s < sector && s < bitmap->mddev->resync_max_sectors) {
diff --git a/drivers/md/md.c b/drivers/md/md.c
index c148b6302154..f20d13e717d5 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1643,7 +1643,9 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
                 bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
                 if (rdev->sb_size & bmask)
                         rdev->sb_size = (rdev->sb_size | bmask) + 1;
-        }
+        } else
+                max_dev = le32_to_cpu(sb->max_dev);
+
         for (i=0; i<max_dev;i++)
                 sb->dev_roles[i] = cpu_to_le16(0xfffe);
         
@@ -2167,9 +2169,9 @@ repeat:
                                 rdev->recovery_offset = mddev->curr_resync_completed;
 
         }       
-        if (mddev->external || !mddev->persistent) {
-                clear_bit(MD_CHANGE_DEVS, &mddev->flags);
+        if (!mddev->persistent) {
                 clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
+                clear_bit(MD_CHANGE_DEVS, &mddev->flags);
                 wake_up(&mddev->sb_wait);
                 return;
         }
@@ -2178,7 +2180,6 @@ repeat:
 
         mddev->utime = get_seconds();
 
-        set_bit(MD_CHANGE_PENDING, &mddev->flags);
         if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
                 force_change = 1;
         if (test_and_clear_bit(MD_CHANGE_CLEAN, &mddev->flags))
@@ -3371,7 +3372,7 @@ array_state_show(mddev_t *mddev, char *page)
                 case 0:
                         if (mddev->in_sync)
                                 st = clean;
-                        else if (test_bit(MD_CHANGE_CLEAN, &mddev->flags))
+                        else if (test_bit(MD_CHANGE_PENDING, &mddev->flags))
                                 st = write_pending;
                         else if (mddev->safemode)
                                 st = active_idle;
@@ -3452,9 +3453,7 @@ array_state_store(mddev_t *mddev, const char *buf, size_t len)
                                         mddev->in_sync = 1;
                                         if (mddev->safemode == 1)
                                                 mddev->safemode = 0;
-                                        if (mddev->persistent)
-                                                set_bit(MD_CHANGE_CLEAN,
-                                                        &mddev->flags);
+                                        set_bit(MD_CHANGE_CLEAN, &mddev->flags);
                                 }
                                 err = 0;
                         } else
@@ -3466,8 +3465,7 @@ array_state_store(mddev_t *mddev, const char *buf, size_t len)
         case active:
                 if (mddev->pers) {
                         restart_array(mddev);
-                        if (mddev->external)
-                                clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
+                        clear_bit(MD_CHANGE_PENDING, &mddev->flags);
                         wake_up(&mddev->sb_wait);
                         err = 0;
                 } else {
@@ -6572,6 +6570,7 @@ void md_write_start(mddev_t *mddev, struct bio *bi)
                 if (mddev->in_sync) {
                         mddev->in_sync = 0;
                         set_bit(MD_CHANGE_CLEAN, &mddev->flags);
+                        set_bit(MD_CHANGE_PENDING, &mddev->flags);
                         md_wakeup_thread(mddev->thread);
                         did_change = 1;
                 }
@@ -6580,7 +6579,6 @@ void md_write_start(mddev_t *mddev, struct bio *bi)
         if (did_change)
                 sysfs_notify_dirent_safe(mddev->sysfs_state);
         wait_event(mddev->sb_wait,
-                   !test_bit(MD_CHANGE_CLEAN, &mddev->flags) &&
                    !test_bit(MD_CHANGE_PENDING, &mddev->flags));
 }
 
@@ -6616,6 +6614,7 @@ int md_allow_write(mddev_t *mddev)
         if (mddev->in_sync) {
                 mddev->in_sync = 0;
                 set_bit(MD_CHANGE_CLEAN, &mddev->flags);
+                set_bit(MD_CHANGE_PENDING, &mddev->flags);
                 if (mddev->safemode_delay &&
                     mddev->safemode == 0)
                         mddev->safemode = 1;
@@ -6625,7 +6624,7 @@ int md_allow_write(mddev_t *mddev)
         } else
                 spin_unlock_irq(&mddev->write_lock);
 
-        if (test_bit(MD_CHANGE_CLEAN, &mddev->flags))
+        if (test_bit(MD_CHANGE_PENDING, &mddev->flags))
                 return -EAGAIN;
         else
                 return 0;
@@ -6823,8 +6822,7 @@ void md_do_sync(mddev_t *mddev)
                                    atomic_read(&mddev->recovery_active) == 0);
                         mddev->curr_resync_completed =
                                 mddev->curr_resync;
-                        if (mddev->persistent)
-                                set_bit(MD_CHANGE_CLEAN, &mddev->flags);
+                        set_bit(MD_CHANGE_CLEAN, &mddev->flags);
                         sysfs_notify(&mddev->kobj, NULL, "sync_completed");
                 }
 
@@ -7073,7 +7071,7 @@ void md_check_recovery(mddev_t *mddev)
         if (mddev->ro && !test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))
                 return;
         if ( ! (
-                (mddev->flags && !mddev->external) ||
+                (mddev->flags & ~ (1<<MD_CHANGE_PENDING)) ||
                 test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) ||
                 test_bit(MD_RECOVERY_DONE, &mddev->recovery) ||
                 (mddev->external == 0 && mddev->safemode == 1) ||
@@ -7103,8 +7101,7 @@ void md_check_recovery(mddev_t *mddev)
                             mddev->recovery_cp == MaxSector) {
                                 mddev->in_sync = 1;
                                 did_change = 1;
-                                if (mddev->persistent)
-                                        set_bit(MD_CHANGE_CLEAN, &mddev->flags);
+                                set_bit(MD_CHANGE_CLEAN, &mddev->flags);
                         }
                         if (mddev->safemode == 1)
                                 mddev->safemode = 0;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index a953fe2808ae..3931299788dc 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -140,7 +140,7 @@ struct mddev_s
         unsigned long                   flags;
 #define MD_CHANGE_DEVS  0       /* Some device status has changed */
 #define MD_CHANGE_CLEAN 1       /* transition to or from 'clean' */
-#define MD_CHANGE_PENDING 2     /* superblock update in progress */
+#define MD_CHANGE_PENDING 2     /* switch from 'clean' to 'active' in progress */
 
         int                             suspended;
         atomic_t                        active_io;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 0b591b658243..b74331260744 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -368,7 +368,7 @@ config VMWARE_BALLOON
           If unsure, say N.
 
           To compile this driver as a module, choose M here: the
-          module will be called vmware_balloon.
+          module will be called vmw_balloon.
 
 config ARM_CHARLCD
         bool "ARM Ltd. Character LCD Driver"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 255a80dc9d73..42eab95cde2a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -33,5 +33,5 @@ obj-$(CONFIG_IWMC3200TOP)      += iwmc3200top/
 obj-$(CONFIG_HMC6352)           += hmc6352.o
 obj-y                           += eeprom/
 obj-y                           += cb710/
-obj-$(CONFIG_VMWARE_BALLOON)    += vmware_balloon.o
+obj-$(CONFIG_VMWARE_BALLOON)    += vmw_balloon.o
 obj-$(CONFIG_ARM_CHARLCD)       += arm-charlcd.o
diff --git a/drivers/misc/vmware_balloon.c b/drivers/misc/vmw_balloon.c
index 2a1e804a71aa..2a1e804a71aa 100644
--- a/drivers/misc/vmware_balloon.c
+++ b/drivers/misc/vmw_balloon.c
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index bd2755e8d9a3..f332c52968b7 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -362,9 +362,8 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
                 goto err;
         }
 
-        err = mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid);
-
-        if (!err) {
+        if (ocr & R4_MEMORY_PRESENT
+            && mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid) == 0) {
                 card->type = MMC_TYPE_SD_COMBO;
 
                 if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 5f3a599ead07..87226cd202a5 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -66,6 +66,7 @@
 #include <linux/clk.h>
 #include <linux/atmel_pdc.h>
 #include <linux/gfp.h>
+#include <linux/highmem.h>
 
 #include <linux/mmc/host.h>
 
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index 9a68ff4353a2..5a950b16d9e6 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -148,11 +148,12 @@ static int imxmci_start_clock(struct imxmci_host *host)
 
                 while (delay--) {
                         reg = readw(host->base + MMC_REG_STATUS);
-                        if (reg & STATUS_CARD_BUS_CLK_RUN)
+                        if (reg & STATUS_CARD_BUS_CLK_RUN) {
                                 /* Check twice before cut */
                                 reg = readw(host->base + MMC_REG_STATUS);
                                 if (reg & STATUS_CARD_BUS_CLK_RUN)
                                         return 0;
+                        }
 
                         if (test_bit(IMXMCI_PEND_STARTED_b, &host->pending_events))
                                 return 0;
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 840b301b5671..f2e02d7d9f3d 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -41,23 +41,35 @@ static unsigned int fmax = 515633;
  * @clkreg: default value for MCICLOCK register
  * @clkreg_enable: enable value for MMCICLOCK register
  * @datalength_bits: number of bits in the MMCIDATALENGTH register
+ * @fifosize: number of bytes that can be written when MMCI_TXFIFOEMPTY
+ *            is asserted (likewise for RX)
+ * @fifohalfsize: number of bytes that can be written when MCI_TXFIFOHALFEMPTY
+ *                is asserted (likewise for RX)
  */
 struct variant_data {
         unsigned int            clkreg;
         unsigned int            clkreg_enable;
         unsigned int            datalength_bits;
+        unsigned int            fifosize;
+        unsigned int            fifohalfsize;
 };
 
 static struct variant_data variant_arm = {
+        .fifosize               = 16 * 4,
+        .fifohalfsize           = 8 * 4,
         .datalength_bits        = 16,
 };
 
 static struct variant_data variant_u300 = {
+        .fifosize               = 16 * 4,
+        .fifohalfsize           = 8 * 4,
         .clkreg_enable          = 1 << 13, /* HWFCEN */
         .datalength_bits        = 16,
 };
 
 static struct variant_data variant_ux500 = {
+        .fifosize               = 30 * 4,
+        .fifohalfsize           = 8 * 4,
         .clkreg                 = MCI_CLK_ENABLE,
         .clkreg_enable          = 1 << 14, /* HWFCEN */
         .datalength_bits        = 24,
@@ -138,6 +150,7 @@ static void mmci_init_sg(struct mmci_host *host, struct mmc_data *data)
 
 static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
 {
+        struct variant_data *variant = host->variant;
         unsigned int datactrl, timeout, irqmask;
         unsigned long long clks;
         void __iomem *base;
@@ -173,7 +186,7 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
                  * If we have less than a FIFOSIZE of bytes to transfer,
                  * trigger a PIO interrupt as soon as any data is available.
                  */
-                if (host->size < MCI_FIFOSIZE)
+                if (host->size < variant->fifosize)
                         irqmask |= MCI_RXDATAAVLBLMASK;
         } else {
                 /*
@@ -332,13 +345,15 @@ static int mmci_pio_read(struct mmci_host *host, char *buffer, unsigned int rema
 
 static int mmci_pio_write(struct mmci_host *host, char *buffer, unsigned int remain, u32 status)
 {
+        struct variant_data *variant = host->variant;
         void __iomem *base = host->base;
         char *ptr = buffer;
 
         do {
                 unsigned int count, maxcnt;
 
-                maxcnt = status & MCI_TXFIFOEMPTY ? MCI_FIFOSIZE : MCI_FIFOHALFSIZE;
+                maxcnt = status & MCI_TXFIFOEMPTY ?
+                         variant->fifosize : variant->fifohalfsize;
                 count = min(remain, maxcnt);
 
                 writesl(base + MMCIFIFO, ptr, count >> 2);
@@ -362,6 +377,7 @@ static irqreturn_t mmci_pio_irq(int irq, void *dev_id)
 {
         struct mmci_host *host = dev_id;
         struct sg_mapping_iter *sg_miter = &host->sg_miter;
+        struct variant_data *variant = host->variant;
         void __iomem *base = host->base;
         unsigned long flags;
         u32 status;
@@ -420,7 +436,7 @@ static irqreturn_t mmci_pio_irq(int irq, void *dev_id)
          * If we're nearing the end of the read, switch to
          * "any data available" mode.
          */
-        if (status & MCI_RXACTIVE && host->size < MCI_FIFOSIZE)
+        if (status & MCI_RXACTIVE && host->size < variant->fifosize)
                 writel(MCI_RXDATAAVLBLMASK, base + MMCIMASK1);
 
         /*
@@ -564,18 +580,23 @@ static int mmci_get_ro(struct mmc_host *mmc)
         if (host->gpio_wp == -ENOSYS)
                 return -ENOSYS;
 
-        return gpio_get_value(host->gpio_wp);
+        return gpio_get_value_cansleep(host->gpio_wp);
 }
 
 static int mmci_get_cd(struct mmc_host *mmc)
 {
         struct mmci_host *host = mmc_priv(mmc);
+        struct mmci_platform_data *plat = host->plat;
         unsigned int status;
 
-        if (host->gpio_cd == -ENOSYS)
-                status = host->plat->status(mmc_dev(host->mmc));
-        else
-                status = !gpio_get_value(host->gpio_cd);
+        if (host->gpio_cd == -ENOSYS) {
+                if (!plat->status)
+                        return 1; /* Assume always present */
+
+                status = plat->status(mmc_dev(host->mmc));
+        } else
+                status = !!gpio_get_value_cansleep(host->gpio_cd)
+                        ^ plat->cd_invert;
 
         /*
          * Use positive logic throughout - status is zero for no card,
@@ -584,6 +605,15 @@ static int mmci_get_cd(struct mmc_host *mmc)
         return status;
 }
 
+static irqreturn_t mmci_cd_irq(int irq, void *dev_id)
+{
+        struct mmci_host *host = dev_id;
+
+        mmc_detect_change(host->mmc, msecs_to_jiffies(500));
+
+        return IRQ_HANDLED;
+}
+
 static const struct mmc_host_ops mmci_ops = {
         .request        = mmci_request,
         .set_ios        = mmci_set_ios,
@@ -620,6 +650,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 
         host->gpio_wp = -ENOSYS;
         host->gpio_cd = -ENOSYS;
+        host->gpio_cd_irq = -1;
 
         host->hw_designer = amba_manf(dev);
         host->hw_revision = amba_rev(dev);
@@ -699,7 +730,6 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
         if (host->vcc == NULL)
                 mmc->ocr_avail = plat->ocr_mask;
         mmc->caps = plat->capabilities;
-        mmc->caps |= MMC_CAP_NEEDS_POLL;
 
         /*
          * We can do SGIO
@@ -744,6 +774,12 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
                         host->gpio_cd = plat->gpio_cd;
                 else if (ret != -ENOSYS)
                         goto err_gpio_cd;
+
+                ret = request_any_context_irq(gpio_to_irq(plat->gpio_cd),
+                                              mmci_cd_irq, 0,
+                                              DRIVER_NAME " (cd)", host);
+                if (ret >= 0)
+                        host->gpio_cd_irq = gpio_to_irq(plat->gpio_cd);
         }
         if (gpio_is_valid(plat->gpio_wp)) {
                 ret = gpio_request(plat->gpio_wp, DRIVER_NAME " (wp)");
@@ -755,6 +791,10 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
                         goto err_gpio_wp;
         }
 
+        if ((host->plat->status || host->gpio_cd != -ENOSYS)
+            && host->gpio_cd_irq < 0)
+                mmc->caps |= MMC_CAP_NEEDS_POLL;
+
         ret = request_irq(dev->irq[0], mmci_irq, IRQF_SHARED, DRIVER_NAME " (cmd)", host);
         if (ret)
                 goto unmap;
@@ -781,6 +821,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
         if (host->gpio_wp != -ENOSYS)
                 gpio_free(host->gpio_wp);
  err_gpio_wp:
+        if (host->gpio_cd_irq >= 0)
+                free_irq(host->gpio_cd_irq, host);
         if (host->gpio_cd != -ENOSYS)
                 gpio_free(host->gpio_cd);
  err_gpio_cd:
@@ -819,6 +861,8 @@ static int __devexit mmci_remove(struct amba_device *dev)
 
                 if (host->gpio_wp != -ENOSYS)
                         gpio_free(host->gpio_wp);
+                if (host->gpio_cd_irq >= 0)
+                        free_irq(host->gpio_cd_irq, host);
                 if (host->gpio_cd != -ENOSYS)
                         gpio_free(host->gpio_cd);
 
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 68970cfb81e1..4ae887fc0189 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -54,10 +54,16 @@
 #define MCI_DPSM_MODE           (1 << 2)
 #define MCI_DPSM_DMAENABLE      (1 << 3)
 #define MCI_DPSM_BLOCKSIZE      (1 << 4)
-#define MCI_DPSM_RWSTART        (1 << 8)
-#define MCI_DPSM_RWSTOP         (1 << 9)
-#define MCI_DPSM_RWMOD          (1 << 10)
-#define MCI_DPSM_SDIOEN         (1 << 11)
+/* Control register extensions in the ST Micro U300 and Ux500 versions */
+#define MCI_ST_DPSM_RWSTART     (1 << 8)
+#define MCI_ST_DPSM_RWSTOP      (1 << 9)
+#define MCI_ST_DPSM_RWMOD       (1 << 10)
+#define MCI_ST_DPSM_SDIOEN      (1 << 11)
+/* Control register extensions in the ST Micro Ux500 versions */
+#define MCI_ST_DPSM_DMAREQCTL   (1 << 12)
+#define MCI_ST_DPSM_DBOOTMODEEN (1 << 13)
+#define MCI_ST_DPSM_BUSYMODE    (1 << 14)
+#define MCI_ST_DPSM_DDRMODE     (1 << 15)
 
 #define MMCIDATACNT             0x030
 #define MMCISTATUS              0x034
@@ -133,13 +139,6 @@
         MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK|       \
         MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATABLOCKENDMASK)
 
-/*
- * The size of the FIFO in bytes.
- */
-#define MCI_FIFOSIZE    (16*4)
-        
-#define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2)
-
 #define NR_SG           16
 
 struct clk;
@@ -154,6 +153,7 @@ struct mmci_host {
         struct clk              *clk;
         int                     gpio_cd;
         int                     gpio_wp;
+        int                     gpio_cd_irq;
 
         unsigned int            data_xfered;
 
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 4a8776f8afdd..4526d2791f29 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2305,7 +2305,6 @@ static int omap_hsmmc_suspend(struct device *dev)
         int ret = 0;
         struct platform_device *pdev = to_platform_device(dev);
         struct omap_hsmmc_host *host = platform_get_drvdata(pdev);
-        pm_message_t state = PMSG_SUSPEND; /* unused by MMC core */
 
         if (host && host->suspended)
                 return 0;
@@ -2324,8 +2323,8 @@ static int omap_hsmmc_suspend(struct device *dev)
                         }
                 }
                 cancel_work_sync(&host->mmc_carddetect_work);
-                mmc_host_enable(host->mmc);
                 ret = mmc_suspend_host(host->mmc);
+                mmc_host_enable(host->mmc);
                 if (ret == 0) {
                         omap_hsmmc_disable_irq(host);
                         OMAP_HSMMC_WRITE(host->base, HCTL,
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 2e16e0a90a5e..976330de379e 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1600,7 +1600,7 @@ static int __devinit s3cmci_probe(struct platform_device *pdev)
         host->pio_active        = XFER_NONE;
 
 #ifdef CONFIG_MMC_S3C_PIODMA
-        host->dodma             = host->pdata->dma;
+        host->dodma             = host->pdata->use_dma;
 #endif
 
         host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 71ad4163b95e..aacb862ecc8a 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -241,8 +241,10 @@ static struct sdhci_ops sdhci_s3c_ops = {
 static void sdhci_s3c_notify_change(struct platform_device *dev, int state)
 {
         struct sdhci_host *host = platform_get_drvdata(dev);
+        unsigned long flags;
+
         if (host) {
-                spin_lock(&host->lock);
+                spin_lock_irqsave(&host->lock, flags);
                 if (state) {
                         dev_dbg(&dev->dev, "card inserted.\n");
                         host->flags &= ~SDHCI_DEVICE_DEAD;
@@ -253,7 +255,7 @@ static void sdhci_s3c_notify_change(struct platform_device *dev, int state)
                         host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
                 }
                 tasklet_schedule(&host->card_tasklet);
-                spin_unlock(&host->lock);
+                spin_unlock_irqrestore(&host->lock, flags);
         }
 }
 
@@ -481,8 +483,10 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
         sdhci_remove_host(host, 1);
 
         for (ptr = 0; ptr < 3; ptr++) {
-                clk_disable(sc->clk_bus[ptr]);
-                clk_put(sc->clk_bus[ptr]);
+                if (sc->clk_bus[ptr]) {
+                        clk_disable(sc->clk_bus[ptr]);
+                        clk_put(sc->clk_bus[ptr]);
+                }
         }
         clk_disable(sc->clk_io);
         clk_put(sc->clk_io);
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index ee7d0a5a51c4..69d98e3bf6ab 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -164,6 +164,7 @@ tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd)
 static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
 {
         struct mmc_data *data = host->data;
+        void *sg_virt;
         unsigned short *buf;
         unsigned int count;
         unsigned long flags;
@@ -173,8 +174,8 @@ static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
                 return;
         }
 
-        buf = (unsigned short *)(tmio_mmc_kmap_atomic(host, &flags) +
-              host->sg_off);
+        sg_virt = tmio_mmc_kmap_atomic(host->sg_ptr, &flags);
+        buf = (unsigned short *)(sg_virt + host->sg_off);
 
         count = host->sg_ptr->length - host->sg_off;
         if (count > data->blksz)
@@ -191,7 +192,7 @@ static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
 
         host->sg_off += count;
 
-        tmio_mmc_kunmap_atomic(host, &flags);
+        tmio_mmc_kunmap_atomic(sg_virt, &flags);
 
         if (host->sg_off == host->sg_ptr->length)
                 tmio_mmc_next_sg(host);
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 64f7d5dfc106..0fedc78e3ea5 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -82,10 +82,7 @@
 
 #define ack_mmc_irqs(host, i) \
         do { \
-                u32 mask;\
-                mask  = sd_ctrl_read32((host), CTL_STATUS); \
-                mask &= ~((i) & TMIO_MASK_IRQ); \
-                sd_ctrl_write32((host), CTL_STATUS, mask); \
+                sd_ctrl_write32((host), CTL_STATUS, ~(i)); \
         } while (0)
 
 
@@ -177,19 +174,17 @@ static inline int tmio_mmc_next_sg(struct tmio_mmc_host *host)
         return --host->sg_len;
 }
 
-static inline char *tmio_mmc_kmap_atomic(struct tmio_mmc_host *host,
+static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
         unsigned long *flags)
 {
-        struct scatterlist *sg = host->sg_ptr;
-
         local_irq_save(*flags);
         return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
 }
 
-static inline void tmio_mmc_kunmap_atomic(struct tmio_mmc_host *host,
+static inline void tmio_mmc_kunmap_atomic(void *virt,
         unsigned long *flags)
 {
-        kunmap_atomic(sg_page(host->sg_ptr), KM_BIO_SRC_IRQ);
+        kunmap_atomic(virt, KM_BIO_SRC_IRQ);
         local_irq_restore(*flags);
 }
 
diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index a382e3dd0a5d..6fbeefa3a766 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -682,7 +682,6 @@ static int __devinit bf5xx_nand_add_partition(struct bf5xx_nand_info *info)
 static int __devexit bf5xx_nand_remove(struct platform_device *pdev)
 {
         struct bf5xx_nand_info *info = to_nand_info(pdev);
-        struct mtd_info *mtd = NULL;
 
         platform_set_drvdata(pdev, NULL);
 
@@ -690,11 +689,7 @@ static int __devexit bf5xx_nand_remove(struct platform_device *pdev)
          * and their partitions, then go through freeing the
          * resources used
          */
-        mtd = &info->mtd;
-        if (mtd) {
-                nand_release(mtd);
-                kfree(mtd);
-        }
+        nand_release(&info->mtd);
 
         peripheral_free_list(bfin_nfc_pin_req);
         bf5xx_nand_dma_remove(info);
@@ -710,7 +705,7 @@ static int bf5xx_nand_scan(struct mtd_info *mtd)
         struct nand_chip *chip = mtd->priv;
         int ret;
 
-        ret = nand_scan_ident(mtd, 1);
+        ret = nand_scan_ident(mtd, 1, NULL);
         if (ret)
                 return ret;
 
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index fcf8ceb277d4..b2828e84d243 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -67,7 +67,9 @@
 #define NFC_V1_V2_CONFIG1_BIG           (1 << 5)
 #define NFC_V1_V2_CONFIG1_RST           (1 << 6)
 #define NFC_V1_V2_CONFIG1_CE            (1 << 7)
-#define NFC_V1_V2_CONFIG1_ONE_CYCLE     (1 << 8)
+#define NFC_V2_CONFIG1_ONE_CYCLE        (1 << 8)
+#define NFC_V2_CONFIG1_PPB(x)           (((x) & 0x3) << 9)
+#define NFC_V2_CONFIG1_FP_INT           (1 << 11)
 
 #define NFC_V1_V2_CONFIG2_INT           (1 << 15)
 
@@ -402,16 +404,16 @@ static void send_read_id_v1_v2(struct mxc_nand_host *host)
         /* Wait for operation to complete */
         wait_op_done(host, true);
 
+        memcpy(host->data_buf, host->main_area0, 16);
+
         if (this->options & NAND_BUSWIDTH_16) {
-                void __iomem *main_buf = host->main_area0;
                 /* compress the ID info */
-                writeb(readb(main_buf + 2), main_buf + 1);
-                writeb(readb(main_buf + 4), main_buf + 2);
-                writeb(readb(main_buf + 6), main_buf + 3);
-                writeb(readb(main_buf + 8), main_buf + 4);
-                writeb(readb(main_buf + 10), main_buf + 5);
+                host->data_buf[1] = host->data_buf[2];
+                host->data_buf[2] = host->data_buf[4];
+                host->data_buf[3] = host->data_buf[6];
+                host->data_buf[4] = host->data_buf[8];
+                host->data_buf[5] = host->data_buf[10];
         }
-        memcpy(host->data_buf, host->main_area0, 16);
 }
 
 static uint16_t get_dev_status_v3(struct mxc_nand_host *host)
@@ -729,27 +731,30 @@ static void preset_v1_v2(struct mtd_info *mtd)
 {
         struct nand_chip *nand_chip = mtd->priv;
         struct mxc_nand_host *host = nand_chip->priv;
-        uint16_t tmp;
-
-        /* enable interrupt, disable spare enable */
-        tmp = readw(NFC_V1_V2_CONFIG1);
-        tmp &= ~NFC_V1_V2_CONFIG1_INT_MSK;
-        tmp &= ~NFC_V1_V2_CONFIG1_SP_EN;
-        if (nand_chip->ecc.mode == NAND_ECC_HW) {
-                tmp |= NFC_V1_V2_CONFIG1_ECC_EN;
-        } else {
-                tmp &= ~NFC_V1_V2_CONFIG1_ECC_EN;
-        }
+        uint16_t config1 = 0;
+
+        if (nand_chip->ecc.mode == NAND_ECC_HW)
+                config1 |= NFC_V1_V2_CONFIG1_ECC_EN;
+
+        if (nfc_is_v21())
+                config1 |= NFC_V2_CONFIG1_FP_INT;
+
+        if (!cpu_is_mx21())
+                config1 |= NFC_V1_V2_CONFIG1_INT_MSK;
 
         if (nfc_is_v21() && mtd->writesize) {
+                uint16_t pages_per_block = mtd->erasesize / mtd->writesize;
+
                 host->eccsize = get_eccsize(mtd);
                 if (host->eccsize == 4)
-                        tmp |= NFC_V2_CONFIG1_ECC_MODE_4;
+                        config1 |= NFC_V2_CONFIG1_ECC_MODE_4;
+
+                config1 |= NFC_V2_CONFIG1_PPB(ffs(pages_per_block) - 6);
         } else {
                 host->eccsize = 1;
         }
 
-        writew(tmp, NFC_V1_V2_CONFIG1);
+        writew(config1, NFC_V1_V2_CONFIG1);
         /* preset operation */
 
         /* Unlock the internal RAM Buffer */
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 4d89f3780207..4d01cda68844 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1320,6 +1320,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
                 goto fail_free_irq;
         }
 
+#ifdef CONFIG_MTD_PARTITIONS
         if (mtd_has_cmdlinepart()) {
                 static const char *probes[] = { "cmdlinepart", NULL };
                 struct mtd_partition *parts;
@@ -1332,6 +1333,9 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
         }
 
         return add_mtd_partitions(mtd, pdata->parts, pdata->nr_parts);
+#else
+        return 0;
+#endif
 
 fail_free_irq:
         free_irq(irq, info);
@@ -1364,7 +1368,9 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
         platform_set_drvdata(pdev, NULL);
 
         del_mtd_device(mtd);
+#ifdef CONFIG_MTD_PARTITIONS
         del_mtd_partitions(mtd);
+#endif
         irq = platform_get_irq(pdev, 0);
         if (irq >= 0)
                 free_irq(irq, info);
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index cb443af3d45f..a460f1b748c2 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -554,14 +554,13 @@ static int s5pc110_dma_ops(void *dst, void *src, size_t count, int direction)
 
         do {
                 status = readl(base + S5PC110_DMA_TRANS_STATUS);
+                if (status & S5PC110_DMA_TRANS_STATUS_TE) {
+                        writel(S5PC110_DMA_TRANS_CMD_TEC,
+                                        base + S5PC110_DMA_TRANS_CMD);
+                        return -EIO;
+                }
         } while (!(status & S5PC110_DMA_TRANS_STATUS_TD));
 
-        if (status & S5PC110_DMA_TRANS_STATUS_TE) {
-                writel(S5PC110_DMA_TRANS_CMD_TEC, base + S5PC110_DMA_TRANS_CMD);
-                writel(S5PC110_DMA_TRANS_CMD_TDC, base + S5PC110_DMA_TRANS_CMD);
-                return -EIO;
-        }
-
         writel(S5PC110_DMA_TRANS_CMD_TDC, base + S5PC110_DMA_TRANS_CMD);
 
         return 0;
@@ -571,13 +570,12 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
                 unsigned char *buffer, int offset, size_t count)
 {
         struct onenand_chip *this = mtd->priv;
-        void __iomem *bufferram;
         void __iomem *p;
         void *buf = (void *) buffer;
         dma_addr_t dma_src, dma_dst;
         int err;
 
-        p = bufferram = this->base + area;
+        p = this->base + area;
         if (ONENAND_CURRENT_BUFFERRAM(this)) {
                 if (area == ONENAND_DATARAM)
                         p += this->writesize;
@@ -621,7 +619,7 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
 normal:
         if (count != mtd->writesize) {
                 /* Copy the bufferram to memory to prevent unaligned access */
-                memcpy(this->page_buf, bufferram, mtd->writesize);
+                memcpy(this->page_buf, p, mtd->writesize);
                 p = this->page_buf + offset;
         }
 
diff --git a/drivers/mtd/ubi/Kconfig.debug b/drivers/mtd/ubi/Kconfig.debug
index 2246f154e2f7..61f6e5e40458 100644
--- a/drivers/mtd/ubi/Kconfig.debug
+++ b/drivers/mtd/ubi/Kconfig.debug
@@ -6,7 +6,7 @@ config MTD_UBI_DEBUG
         depends on SYSFS
         depends on MTD_UBI
         select DEBUG_FS
-        select KALLSYMS_ALL
+        select KALLSYMS_ALL if KALLSYMS && DEBUG_KERNEL
         help
           This option enables UBI debugging.
 
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 4dfa6b90c21c..3d2d1a69e9a0 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -798,18 +798,18 @@ static int rename_volumes(struct ubi_device *ubi,
                         goto out_free;
                 }
 
-                re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL);
-                if (!re) {
+                re1 = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL);
+                if (!re1) {
                         err = -ENOMEM;
                         ubi_close_volume(desc);
                         goto out_free;
                 }
 
-                re->remove = 1;
-                re->desc = desc;
-                list_add(&re->list, &rename_list);
+                re1->remove = 1;
+                re1->desc = desc;
+                list_add(&re1->list, &rename_list);
                 dbg_msg("will remove volume %d, name \"%s\"",
-                        re->desc->vol->vol_id, re->desc->vol->name);
+                        re1->desc->vol->vol_id, re1->desc->vol->name);
         }
 
         mutex_lock(&ubi->device_mutex);
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 372a15ac9995..69b52e9c9489 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -843,7 +843,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
                 case UBI_COMPAT_DELETE:
                         ubi_msg("\"delete\" compatible internal volume %d:%d"
                                 " found, will remove it", vol_id, lnum);
-                        err = add_to_list(si, pnum, ec, &si->corr);
+                        err = add_to_list(si, pnum, ec, &si->erase);
                         if (err)
                                 return err;
                         return 0;
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index ee7b1d8fbb92..97a435672eaf 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1212,7 +1212,8 @@ int ubi_wl_scrub_peb(struct ubi_device *ubi, int pnum)
 retry:
         spin_lock(&ubi->wl_lock);
         e = ubi->lookuptbl[pnum];
-        if (e == ubi->move_from || in_wl_tree(e, &ubi->scrub)) {
+        if (e == ubi->move_from || in_wl_tree(e, &ubi->scrub) ||
+                                   in_wl_tree(e, &ubi->erroneous)) {
                 spin_unlock(&ubi->wl_lock);
                 return 0;
         }
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index c685a55fc2f4..179871d9e71f 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -635,6 +635,9 @@ struct vortex_private {
                 must_free_region:1,                             /* Flag: if zero, Cardbus owns the I/O region */
                 large_frames:1,                 /* accept large frames */
                 handling_irq:1;                 /* private in_irq indicator */
+        /* {get|set}_wol operations are already serialized by rtnl.
+         * no additional locking is required for the enable_wol and acpi_set_WOL()
+         */
         int drv_flags;
         u16 status_enable;
         u16 intr_enable;
@@ -647,7 +650,7 @@ struct vortex_private {
         u16 io_size;                                            /* Size of PCI region (for release_region) */
 
         /* Serialises access to hardware other than MII and variables below.
-         * The lock hierarchy is rtnl_lock > lock > mii_lock > window_lock. */
+         * The lock hierarchy is rtnl_lock > {lock, mii_lock} > window_lock. */
         spinlock_t lock;
 
         spinlock_t mii_lock;            /* Serialises access to MII */
@@ -1994,10 +1997,9 @@ vortex_error(struct net_device *dev, int status)
                 }
         }
 
-        if (status & RxEarly) {                         /* Rx early is unused. */
-                vortex_rx(dev);
+        if (status & RxEarly)                           /* Rx early is unused. */
                 iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
-        }
+
         if (status & StatsFull) {                       /* Empty statistics. */
                 static int DoneDidThat;
                 if (vortex_debug > 4)
@@ -2298,7 +2300,12 @@ vortex_interrupt(int irq, void *dev_id)
                 if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
                         if (status == 0xffff)
                                 break;
+                        if (status & RxEarly)
+                                vortex_rx(dev);
+                        spin_unlock(&vp->window_lock);
                         vortex_error(dev, status);
+                        spin_lock(&vp->window_lock);
+                        window_set(vp, 7);
                 }
 
                 if (--work_done < 0) {
@@ -2935,28 +2942,31 @@ static void vortex_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
         struct vortex_private *vp = netdev_priv(dev);
 
-        spin_lock_irq(&vp->lock);
+        if (!VORTEX_PCI(vp))
+                return;
+
         wol->supported = WAKE_MAGIC;
 
         wol->wolopts = 0;
         if (vp->enable_wol)
                 wol->wolopts |= WAKE_MAGIC;
-        spin_unlock_irq(&vp->lock);
 }
 
 static int vortex_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
         struct vortex_private *vp = netdev_priv(dev);
+
+        if (!VORTEX_PCI(vp))
+                return -EOPNOTSUPP;
+
         if (wol->wolopts & ~WAKE_MAGIC)
                 return -EINVAL;
 
-        spin_lock_irq(&vp->lock);
         if (wol->wolopts & WAKE_MAGIC)
                 vp->enable_wol = 1;
         else
                 vp->enable_wol = 0;
         acpi_set_WOL(dev);
-        spin_unlock_irq(&vp->lock);
 
         return 0;
 }
@@ -2984,7 +2994,6 @@ static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
         int err;
         struct vortex_private *vp = netdev_priv(dev);
-        unsigned long flags;
         pci_power_t state = 0;
 
         if(VORTEX_PCI(vp))
@@ -2994,9 +3003,7 @@ static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 
         if(state != 0)
                 pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
-        spin_lock_irqsave(&vp->lock, flags);
         err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
-        spin_unlock_irqrestore(&vp->lock, flags);
         if(state != 0)
                 pci_set_power_state(VORTEX_PCI(vp), state);
 
@@ -3201,6 +3208,9 @@ static void acpi_set_WOL(struct net_device *dev)
                         return;
                 }
 
+                if (VORTEX_PCI(vp)->current_state < PCI_D3hot)
+                        return;
+
                 /* Change the power state to D3; RxEnable doesn't take effect. */
                 pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
         }
diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 63b9ba0cc67e..c73be2848319 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -1251,6 +1251,12 @@ static void atl1_free_ring_resources(struct atl1_adapter *adapter)
 
         rrd_ring->desc = NULL;
         rrd_ring->dma = 0;
+
+        adapter->cmb.dma = 0;
+        adapter->cmb.cmb = NULL;
+
+        adapter->smb.dma = 0;
+        adapter->smb.smb = NULL;
 }
 
 static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
@@ -2847,10 +2853,11 @@ static int atl1_resume(struct pci_dev *pdev)
         pci_enable_wake(pdev, PCI_D3cold, 0);
 
         atl1_reset_hw(&adapter->hw);
-        adapter->cmb.cmb->int_stats = 0;
 
-        if (netif_running(netdev))
+        if (netif_running(netdev)) {
+                adapter->cmb.cmb->int_stats = 0;
                 atl1_up(adapter);
+        }
         netif_device_attach(netdev);
 
         return 0;
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 37617abc1647..1e620e287ae0 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -848,6 +848,15 @@ static int b44_poll(struct napi_struct *napi, int budget)
                 b44_tx(bp);
                 /* spin_unlock(&bp->tx_lock); */
         }
+        if (bp->istat & ISTAT_RFO) {    /* fast recovery, in ~20msec */
+                bp->istat &= ~ISTAT_RFO;
+                b44_disable_ints(bp);
+                ssb_device_enable(bp->sdev, 0); /* resets ISTAT_RFO */
+                b44_init_rings(bp);
+                b44_init_hw(bp, B44_FULL_RESET_SKIP_PHY);
+                netif_wake_queue(bp->dev);
+        }
+
         spin_unlock_irqrestore(&bp->lock, flags);
 
         work_done = 0;
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index 99197bd54da5..53306bf3f401 100644
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -181,6 +181,7 @@ struct be_drvr_stats {
         u64 be_rx_bytes_prev;
         u64 be_rx_pkts;
         u32 be_rx_rate;
+        u32 be_rx_mcast_pkt;
         /* number of non ether type II frames dropped where
          * frame len > length field of Mac Hdr */
         u32 be_802_3_dropped_frames;
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 3d305494a606..34abcc9403d6 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -140,10 +140,8 @@ int be_process_mcc(struct be_adapter *adapter, int *status)
         while ((compl = be_mcc_compl_get(adapter))) {
                 if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
                         /* Interpret flags as an async trailer */
-                        BUG_ON(!is_link_state_evt(compl->flags));
-
-                        /* Interpret compl as a async link evt */
-                        be_async_link_state_process(adapter,
+                        if (is_link_state_evt(compl->flags))
+                                be_async_link_state_process(adapter,
                                 (struct be_async_event_link_state *) compl);
                 } else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) {
                                 *status = be_mcc_compl_process(adapter, compl);
@@ -207,7 +205,7 @@ static int be_mbox_db_ready_wait(struct be_adapter *adapter, void __iomem *db)
 
                 if (msecs > 4000) {
                         dev_err(&adapter->pdev->dev, "mbox poll timed out\n");
-                        be_dump_ue(adapter);
+                        be_detect_dump_ue(adapter);
                         return -1;
                 }
 
diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h
index bdc10a28cfda..ad1e6fac60c5 100644
--- a/drivers/net/benet/be_cmds.h
+++ b/drivers/net/benet/be_cmds.h
@@ -992,5 +992,5 @@ extern int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
 extern int be_cmd_get_phy_info(struct be_adapter *adapter,
                 struct be_dma_mem *cmd);
 extern int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
-extern void be_dump_ue(struct be_adapter *adapter);
+extern void be_detect_dump_ue(struct be_adapter *adapter);
 
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index cd16243c7c36..13f0abbc5205 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -60,6 +60,7 @@ static const struct be_ethtool_stat et_stats[] = {
         {DRVSTAT_INFO(be_rx_events)},
         {DRVSTAT_INFO(be_tx_compl)},
         {DRVSTAT_INFO(be_rx_compl)},
+        {DRVSTAT_INFO(be_rx_mcast_pkt)},
         {DRVSTAT_INFO(be_ethrx_post_fail)},
         {DRVSTAT_INFO(be_802_3_dropped_frames)},
         {DRVSTAT_INFO(be_802_3_malformed_frames)},
diff --git a/drivers/net/benet/be_hw.h b/drivers/net/benet/be_hw.h
index 5d38046402b2..a2ec5df0d733 100644
--- a/drivers/net/benet/be_hw.h
+++ b/drivers/net/benet/be_hw.h
@@ -167,8 +167,11 @@
 #define FLASH_FCoE_BIOS_START_g3           (13631488)
 #define FLASH_REDBOOT_START_g3             (262144)
 
-
-
+/************* Rx Packet Type Encoding **************/
+#define BE_UNICAST_PACKET               0
+#define BE_MULTICAST_PACKET             1
+#define BE_BROADCAST_PACKET             2
+#define BE_RSVD_PACKET                  3
 
 /*
  * BE descriptors: host memory data structures whose formats
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 74e146f470c6..6eda7a022256 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -247,6 +247,7 @@ void netdev_stats_update(struct be_adapter *adapter)
         dev_stats->tx_packets = drvr_stats(adapter)->be_tx_pkts;
         dev_stats->rx_bytes = drvr_stats(adapter)->be_rx_bytes;
         dev_stats->tx_bytes = drvr_stats(adapter)->be_tx_bytes;
+        dev_stats->multicast = drvr_stats(adapter)->be_rx_mcast_pkt;
 
         /* bad pkts received */
         dev_stats->rx_errors = port_stats->rx_crc_errors +
@@ -294,7 +295,6 @@ void netdev_stats_update(struct be_adapter *adapter)
         /* no space available in linux */
         dev_stats->tx_dropped = 0;
 
-        dev_stats->multicast = port_stats->rx_multicast_frames;
         dev_stats->collisions = 0;
 
         /* detailed tx_errors */
@@ -848,7 +848,7 @@ static void be_rx_rate_update(struct be_adapter *adapter)
 }
 
 static void be_rx_stats_update(struct be_adapter *adapter,
-                u32 pktsize, u16 numfrags)
+                u32 pktsize, u16 numfrags, u8 pkt_type)
 {
         struct be_drvr_stats *stats = drvr_stats(adapter);
 
@@ -856,6 +856,9 @@ static void be_rx_stats_update(struct be_adapter *adapter,
         stats->be_rx_frags += numfrags;
         stats->be_rx_bytes += pktsize;
         stats->be_rx_pkts++;
+
+        if (pkt_type == BE_MULTICAST_PACKET)
+                stats->be_rx_mcast_pkt++;
 }
 
 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
@@ -925,9 +928,11 @@ static void skb_fill_rx_data(struct be_adapter *adapter,
         u16 rxq_idx, i, j;
         u32 pktsize, hdr_len, curr_frag_len, size;
         u8 *start;
+        u8 pkt_type;
 
         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
+        pkt_type = AMAP_GET_BITS(struct amap_eth_rx_compl, cast_enc, rxcp);
 
         page_info = get_rx_page_info(adapter, rxq_idx);
 
@@ -993,7 +998,7 @@ static void skb_fill_rx_data(struct be_adapter *adapter,
         BUG_ON(j > MAX_SKB_FRAGS);
 
 done:
-        be_rx_stats_update(adapter, pktsize, num_rcvd);
+        be_rx_stats_update(adapter, pktsize, num_rcvd, pkt_type);
 }
 
 /* Process the RX completion indicated by rxcp when GRO is disabled */
@@ -1060,6 +1065,7 @@ static void be_rx_compl_process_gro(struct be_adapter *adapter,
         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
         u16 i, rxq_idx = 0, vid, j;
         u8 vtm;
+        u8 pkt_type;
 
         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
         /* Is it a flush compl that has no data */
@@ -1070,6 +1076,7 @@ static void be_rx_compl_process_gro(struct be_adapter *adapter,
         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
+        pkt_type = AMAP_GET_BITS(struct amap_eth_rx_compl, cast_enc, rxcp);
 
         /* vlanf could be wrongly set in some cards.
          * ignore if vtm is not set */
@@ -1125,7 +1132,7 @@ static void be_rx_compl_process_gro(struct be_adapter *adapter,
                 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
         }
 
-        be_rx_stats_update(adapter, pkt_size, num_rcvd);
+        be_rx_stats_update(adapter, pkt_size, num_rcvd, pkt_type);
 }
 
 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
@@ -1743,26 +1750,7 @@ static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
         return 1;
 }
 
-static inline bool be_detect_ue(struct be_adapter *adapter)
-{
-        u32 online0 = 0, online1 = 0;
-
-        pci_read_config_dword(adapter->pdev, PCICFG_ONLINE0, &online0);
-
-        pci_read_config_dword(adapter->pdev, PCICFG_ONLINE1, &online1);
-
-        if (!online0 || !online1) {
-                adapter->ue_detected = true;
-                dev_err(&adapter->pdev->dev,
-                        "UE Detected!! online0=%d online1=%d\n",
-                        online0, online1);
-                return true;
-        }
-
-        return false;
-}
-
-void be_dump_ue(struct be_adapter *adapter)
+void be_detect_dump_ue(struct be_adapter *adapter)
 {
         u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask;
         u32 i;
@@ -1779,6 +1767,11 @@ void be_dump_ue(struct be_adapter *adapter)
         ue_status_lo = (ue_status_lo & (~ue_status_lo_mask));
         ue_status_hi = (ue_status_hi & (~ue_status_hi_mask));
 
+        if (ue_status_lo || ue_status_hi) {
+                adapter->ue_detected = true;
+                dev_err(&adapter->pdev->dev, "UE Detected!!\n");
+        }
+
         if (ue_status_lo) {
                 for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) {
                         if (ue_status_lo & 1)
@@ -1814,10 +1807,8 @@ static void be_worker(struct work_struct *work)
                 adapter->rx_post_starved = false;
                 be_post_rx_frags(adapter);
         }
-        if (!adapter->ue_detected) {
-                if (be_detect_ue(adapter))
-                        be_dump_ue(adapter);
-        }
+        if (!adapter->ue_detected)
+                be_detect_dump_ue(adapter);
 
         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
 }
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 822f586d72af..0ddf4c66afe2 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2466,6 +2466,9 @@ int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct net_device *dev, struct pac
         if (!(dev->flags & IFF_MASTER))
                 goto out;
 
+        if (!pskb_may_pull(skb, sizeof(struct lacpdu)))
+                goto out;
+
         read_lock(&bond->lock);
         slave = bond_get_slave_by_dev((struct bonding *)netdev_priv(dev),
                                         orig_dev);
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index c746b331771d..26bb118c4533 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -362,6 +362,9 @@ static int rlb_arp_recv(struct sk_buff *skb, struct net_device *bond_dev, struct
                 goto out;
         }
 
+        if (!pskb_may_pull(skb, arp_hdr_len(bond_dev)))
+                goto out;
+
         if (skb->len < sizeof(struct arp_pkt)) {
                 pr_debug("Packet is too small to be an ARP\n");
                 goto out;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2cc4cfc31892..3b16f62d5606 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2797,9 +2797,15 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
          *       so it can wait
          */
         bond_for_each_slave(bond, slave, i) {
+                unsigned long trans_start = dev_trans_start(slave->dev);
+
                 if (slave->link != BOND_LINK_UP) {
-                        if (time_before_eq(jiffies, dev_trans_start(slave->dev) + delta_in_ticks) &&
-                            time_before_eq(jiffies, slave->dev->last_rx + delta_in_ticks)) {
+                        if (time_in_range(jiffies,
+                                trans_start - delta_in_ticks,
+                                trans_start + delta_in_ticks) &&
+                            time_in_range(jiffies,
+                                slave->dev->last_rx - delta_in_ticks,
+                                slave->dev->last_rx + delta_in_ticks)) {
 
                                 slave->link  = BOND_LINK_UP;
                                 slave->state = BOND_STATE_ACTIVE;
@@ -2827,8 +2833,12 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
                          * when the source ip is 0, so don't take the link down
                          * if we don't know our ip yet
                          */
-                        if (time_after_eq(jiffies, dev_trans_start(slave->dev) + 2*delta_in_ticks) ||
-                            (time_after_eq(jiffies, slave->dev->last_rx + 2*delta_in_ticks))) {
+                        if (!time_in_range(jiffies,
+                                trans_start - delta_in_ticks,
+                                trans_start + 2 * delta_in_ticks) ||
+                            !time_in_range(jiffies,
+                                slave->dev->last_rx - delta_in_ticks,
+                                slave->dev->last_rx + 2 * delta_in_ticks)) {
 
                                 slave->link  = BOND_LINK_DOWN;
                                 slave->state = BOND_STATE_BACKUP;
@@ -2883,13 +2893,16 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
 {
         struct slave *slave;
         int i, commit = 0;
+        unsigned long trans_start;
 
         bond_for_each_slave(bond, slave, i) {
                 slave->new_link = BOND_LINK_NOCHANGE;
 
                 if (slave->link != BOND_LINK_UP) {
-                        if (time_before_eq(jiffies, slave_last_rx(bond, slave) +
-                                           delta_in_ticks)) {
+                        if (time_in_range(jiffies,
+                                slave_last_rx(bond, slave) - delta_in_ticks,
+                                slave_last_rx(bond, slave) + delta_in_ticks)) {
+
                                 slave->new_link = BOND_LINK_UP;
                                 commit++;
                         }
@@ -2902,8 +2915,9 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
                  * active.  This avoids bouncing, as the last receive
                  * times need a full ARP monitor cycle to be updated.
                  */
-                if (!time_after_eq(jiffies, slave->jiffies +
-                                   2 * delta_in_ticks))
+                if (time_in_range(jiffies,
+                                  slave->jiffies - delta_in_ticks,
+                                  slave->jiffies + 2 * delta_in_ticks))
                         continue;
 
                 /*
@@ -2921,8 +2935,10 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
                  */
                 if (slave->state == BOND_STATE_BACKUP &&
                     !bond->current_arp_slave &&
-                    time_after(jiffies, slave_last_rx(bond, slave) +
-                               3 * delta_in_ticks)) {
+                    !time_in_range(jiffies,
+                        slave_last_rx(bond, slave) - delta_in_ticks,
+                        slave_last_rx(bond, slave) + 3 * delta_in_ticks)) {
+
                         slave->new_link = BOND_LINK_DOWN;
                         commit++;
                 }
@@ -2933,11 +2949,15 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
                  * - (more than 2*delta since receive AND
                  *    the bond has an IP address)
                  */
+                trans_start = dev_trans_start(slave->dev);
                 if ((slave->state == BOND_STATE_ACTIVE) &&
-                    (time_after_eq(jiffies, dev_trans_start(slave->dev) +
-                                    2 * delta_in_ticks) ||
-                      (time_after_eq(jiffies, slave_last_rx(bond, slave)
-                                     + 2 * delta_in_ticks)))) {
+                    (!time_in_range(jiffies,
+                        trans_start - delta_in_ticks,
+                        trans_start + 2 * delta_in_ticks) ||
+                     !time_in_range(jiffies,
+                        slave_last_rx(bond, slave) - delta_in_ticks,
+                        slave_last_rx(bond, slave) + 2 * delta_in_ticks))) {
+
                         slave->new_link = BOND_LINK_DOWN;
                         commit++;
                 }
@@ -2956,6 +2976,7 @@ static void bond_ab_arp_commit(struct bonding *bond, int delta_in_ticks)
 {
         struct slave *slave;
         int i;
+        unsigned long trans_start;
 
         bond_for_each_slave(bond, slave, i) {
                 switch (slave->new_link) {
@@ -2963,10 +2984,11 @@ static void bond_ab_arp_commit(struct bonding *bond, int delta_in_ticks)
                         continue;
 
                 case BOND_LINK_UP:
+                        trans_start = dev_trans_start(slave->dev);
                         if ((!bond->curr_active_slave &&
-                             time_before_eq(jiffies,
-                                            dev_trans_start(slave->dev) +
-                                            delta_in_ticks)) ||
+                             time_in_range(jiffies,
+                                           trans_start - delta_in_ticks,
+                                           trans_start + delta_in_ticks)) ||
                             bond->curr_active_slave != slave) {
                                 slave->link = BOND_LINK_UP;
                                 bond->current_arp_slave = NULL;
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index ad19585d960b..f208712c0b90 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2296,6 +2296,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
         case CHELSIO_GET_QSET_NUM:{
                 struct ch_reg edata;
 
+                memset(&edata, 0, sizeof(struct ch_reg));
+
                 edata.cmd = CHELSIO_GET_QSET_NUM;
                 edata.val = pi->nqsets;
                 if (copy_to_user(useraddr, &edata, sizeof(edata)))
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index 66ed08f726fb..ba302a5c2c30 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -57,6 +57,7 @@ enum e1e_registers {
         E1000_SCTL     = 0x00024, /* SerDes Control - RW */
         E1000_FCAL     = 0x00028, /* Flow Control Address Low - RW */
         E1000_FCAH     = 0x0002C, /* Flow Control Address High -RW */
+        E1000_FEXTNVM4 = 0x00024, /* Future Extended NVM 4 - RW */
         E1000_FEXTNVM  = 0x00028, /* Future Extended NVM - RW */
         E1000_FCT      = 0x00030, /* Flow Control Type - RW */
         E1000_VET      = 0x00038, /* VLAN Ether Type - RW */
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 63930d12711c..57b5435599ab 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -105,6 +105,10 @@
 #define E1000_FEXTNVM_SW_CONFIG         1
 #define E1000_FEXTNVM_SW_CONFIG_ICH8M (1 << 27) /* Bit redefined for ICH8M :/ */
 
+#define E1000_FEXTNVM4_BEACON_DURATION_MASK    0x7
+#define E1000_FEXTNVM4_BEACON_DURATION_8USEC   0x7
+#define E1000_FEXTNVM4_BEACON_DURATION_16USEC  0x3
+
 #define PCIE_ICH8_SNOOP_ALL             PCIE_NO_SNOOP_ALL
 
 #define E1000_ICH_RAR_ENTRIES           7
@@ -125,6 +129,7 @@
 
 /* SMBus Address Phy Register */
 #define HV_SMB_ADDR            PHY_REG(768, 26)
+#define HV_SMB_ADDR_MASK       0x007F
 #define HV_SMB_ADDR_PEC_EN     0x0200
 #define HV_SMB_ADDR_VALID      0x0080
 
@@ -237,6 +242,8 @@ static s32  e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
 static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
 static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
 static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
+static s32 e1000_k1_workaround_lv(struct e1000_hw *hw);
+static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate);
 
 static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg)
 {
@@ -272,7 +279,7 @@ static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val)
 static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
 {
         struct e1000_phy_info *phy = &hw->phy;
-        u32 ctrl;
+        u32 ctrl, fwsm;
         s32 ret_val = 0;
 
         phy->addr                     = 1;
@@ -294,7 +301,8 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
          * disabled, then toggle the LANPHYPC Value bit to force
          * the interconnect to PCIe mode.
          */
-        if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+        fwsm = er32(FWSM);
+        if (!(fwsm & E1000_ICH_FWSM_FW_VALID)) {
                 ctrl = er32(CTRL);
                 ctrl |=  E1000_CTRL_LANPHYPC_OVERRIDE;
                 ctrl &= ~E1000_CTRL_LANPHYPC_VALUE;
@@ -303,6 +311,13 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
                 ctrl &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
                 ew32(CTRL, ctrl);
                 msleep(50);
+
+                /*
+                 * Gate automatic PHY configuration by hardware on
+                 * non-managed 82579
+                 */
+                if (hw->mac.type == e1000_pch2lan)
+                        e1000_gate_hw_phy_config_ich8lan(hw, true);
         }
 
         /*
@@ -315,6 +330,13 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
         if (ret_val)
                 goto out;
 
+        /* Ungate automatic PHY configuration on non-managed 82579 */
+        if ((hw->mac.type == e1000_pch2lan)  &&
+            !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
+                msleep(10);
+                e1000_gate_hw_phy_config_ich8lan(hw, false);
+        }
+
         phy->id = e1000_phy_unknown;
         ret_val = e1000e_get_phy_id(hw);
         if (ret_val)
@@ -561,13 +583,10 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter)
         if (mac->type == e1000_ich8lan)
                 e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
 
-        /* Disable PHY configuration by hardware, config by software */
-        if (mac->type == e1000_pch2lan) {
-                u32 extcnf_ctrl = er32(EXTCNF_CTRL);
-
-                extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
-                ew32(EXTCNF_CTRL, extcnf_ctrl);
-        }
+        /* Gate automatic PHY configuration by hardware on managed 82579 */
+        if ((mac->type == e1000_pch2lan) &&
+            (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
+                e1000_gate_hw_phy_config_ich8lan(hw, true);
 
         return 0;
 }
@@ -652,6 +671,12 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
                         goto out;
         }
 
+        if (hw->mac.type == e1000_pch2lan) {
+                ret_val = e1000_k1_workaround_lv(hw);
+                if (ret_val)
+                        goto out;
+        }
+
         /*
          * Check if there was DownShift, must be checked
          * immediately after link-up
@@ -895,6 +920,34 @@ static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
 }
 
 /**
+ *  e1000_write_smbus_addr - Write SMBus address to PHY needed during Sx states
+ *  @hw: pointer to the HW structure
+ *
+ *  Assumes semaphore already acquired.
+ *
+ **/
+static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
+{
+        u16 phy_data;
+        u32 strap = er32(STRAP);
+        s32 ret_val = 0;
+
+        strap &= E1000_STRAP_SMBUS_ADDRESS_MASK;
+
+        ret_val = e1000_read_phy_reg_hv_locked(hw, HV_SMB_ADDR, &phy_data);
+        if (ret_val)
+                goto out;
+
+        phy_data &= ~HV_SMB_ADDR_MASK;
+        phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT);
+        phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
+        ret_val = e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data);
+
+out:
+        return ret_val;
+}
+
+/**
  *  e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
  *  @hw:   pointer to the HW structure
  *
@@ -903,7 +956,6 @@ static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
  **/
 static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
 {
-        struct e1000_adapter *adapter = hw->adapter;
         struct e1000_phy_info *phy = &hw->phy;
         u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask;
         s32 ret_val = 0;
@@ -921,7 +973,8 @@ static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
                 if (phy->type != e1000_phy_igp_3)
                         return ret_val;
 
-                if (adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_AMT) {
+                if ((hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_AMT) ||
+                    (hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_C)) {
                         sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG;
                         break;
                 }
@@ -961,21 +1014,16 @@ static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
         cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
         cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
 
-        if (!(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) &&
-            ((hw->mac.type == e1000_pchlan) ||
-             (hw->mac.type == e1000_pch2lan))) {
+        if ((!(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) &&
+            (hw->mac.type == e1000_pchlan)) ||
+             (hw->mac.type == e1000_pch2lan)) {
                 /*
                  * HW configures the SMBus address and LEDs when the
                  * OEM and LCD Write Enable bits are set in the NVM.
                  * When both NVM bits are cleared, SW will configure
                  * them instead.
                  */
-                data = er32(STRAP);
-                data &= E1000_STRAP_SMBUS_ADDRESS_MASK;
-                reg_data = data >> E1000_STRAP_SMBUS_ADDRESS_SHIFT;
-                reg_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
-                ret_val = e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR,
-                                                        reg_data);
+                ret_val = e1000_write_smbus_addr(hw);
                 if (ret_val)
                         goto out;
 
@@ -1440,10 +1488,6 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
                         goto out;
 
                 /* Enable jumbo frame workaround in the PHY */
-                e1e_rphy(hw, PHY_REG(769, 20), &data);
-                ret_val = e1e_wphy(hw, PHY_REG(769, 20), data & ~(1 << 14));
-                if (ret_val)
-                        goto out;
                 e1e_rphy(hw, PHY_REG(769, 23), &data);
                 data &= ~(0x7F << 5);
                 data |= (0x37 << 5);
@@ -1452,7 +1496,6 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
                         goto out;
                 e1e_rphy(hw, PHY_REG(769, 16), &data);
                 data &= ~(1 << 13);
-                data |= (1 << 12);
                 ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
                 if (ret_val)
                         goto out;
@@ -1477,7 +1520,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 
                 mac_reg = er32(RCTL);
                 mac_reg &= ~E1000_RCTL_SECRC;
-                ew32(FFLT_DBG, mac_reg);
+                ew32(RCTL, mac_reg);
 
                 ret_val = e1000e_read_kmrn_reg(hw,
                                                 E1000_KMRNCTRLSTA_CTRL_OFFSET,
@@ -1503,17 +1546,12 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
                         goto out;
 
                 /* Write PHY register values back to h/w defaults */
-                e1e_rphy(hw, PHY_REG(769, 20), &data);
-                ret_val = e1e_wphy(hw, PHY_REG(769, 20), data & ~(1 << 14));
-                if (ret_val)
-                        goto out;
                 e1e_rphy(hw, PHY_REG(769, 23), &data);
                 data &= ~(0x7F << 5);
                 ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
                 if (ret_val)
                         goto out;
                 e1e_rphy(hw, PHY_REG(769, 16), &data);
-                data &= ~(1 << 12);
                 data |= (1 << 13);
                 ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
                 if (ret_val)
@@ -1559,6 +1597,69 @@ out:
 }
 
 /**
+ *  e1000_k1_gig_workaround_lv - K1 Si workaround
+ *  @hw:   pointer to the HW structure
+ *
+ *  Workaround to set the K1 beacon duration for 82579 parts
+ **/
+static s32 e1000_k1_workaround_lv(struct e1000_hw *hw)
+{
+        s32 ret_val = 0;
+        u16 status_reg = 0;
+        u32 mac_reg;
+
+        if (hw->mac.type != e1000_pch2lan)
+                goto out;
+
+        /* Set K1 beacon duration based on 1Gbps speed or otherwise */
+        ret_val = e1e_rphy(hw, HV_M_STATUS, &status_reg);
+        if (ret_val)
+                goto out;
+
+        if ((status_reg & (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE))
+            == (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) {
+                mac_reg = er32(FEXTNVM4);
+                mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
+
+                if (status_reg & HV_M_STATUS_SPEED_1000)
+                        mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC;
+                else
+                        mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_16USEC;
+
+                ew32(FEXTNVM4, mac_reg);
+        }
+
+out:
+        return ret_val;
+}
+
+/**
+ *  e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware
+ *  @hw:   pointer to the HW structure
+ *  @gate: boolean set to true to gate, false to ungate
+ *
+ *  Gate/ungate the automatic PHY configuration via hardware; perform
+ *  the configuration via software instead.
+ **/
+static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate)
+{
+        u32 extcnf_ctrl;
+
+        if (hw->mac.type != e1000_pch2lan)
+                return;
+
+        extcnf_ctrl = er32(EXTCNF_CTRL);
+
+        if (gate)
+                extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
+        else
+                extcnf_ctrl &= ~E1000_EXTCNF_CTRL_GATE_PHY_CFG;
+
+        ew32(EXTCNF_CTRL, extcnf_ctrl);
+        return;
+}
+
+/**
  *  e1000_lan_init_done_ich8lan - Check for PHY config completion
  *  @hw: pointer to the HW structure
  *
@@ -1602,6 +1703,9 @@ static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
         if (e1000_check_reset_block(hw))
                 goto out;
 
+        /* Allow time for h/w to get to quiescent state after reset */
+        msleep(10);
+
         /* Perform any necessary post-reset workarounds */
         switch (hw->mac.type) {
         case e1000_pchlan:
@@ -1630,6 +1734,13 @@ static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
         /* Configure the LCD with the OEM bits in NVM */
         ret_val = e1000_oem_bits_config_ich8lan(hw, true);
 
+        /* Ungate automatic PHY configuration on non-managed 82579 */
+        if ((hw->mac.type == e1000_pch2lan) &&
+            !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+                msleep(10);
+                e1000_gate_hw_phy_config_ich8lan(hw, false);
+        }
+
 out:
         return ret_val;
 }
@@ -1646,6 +1757,11 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
 {
         s32 ret_val = 0;
 
+        /* Gate automatic PHY configuration by hardware on non-managed 82579 */
+        if ((hw->mac.type == e1000_pch2lan) &&
+            !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
+                e1000_gate_hw_phy_config_ich8lan(hw, true);
+
         ret_val = e1000e_phy_hw_reset_generic(hw);
         if (ret_val)
                 goto out;
@@ -2910,6 +3026,14 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
                  * external PHY is reset.
                  */
                 ctrl |= E1000_CTRL_PHY_RST;
+
+                /*
+                 * Gate automatic PHY configuration by hardware on
+                 * non-managed 82579
+                 */
+                if ((hw->mac.type == e1000_pch2lan) &&
+                    !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
+                        e1000_gate_hw_phy_config_ich8lan(hw, true);
         }
         ret_val = e1000_acquire_swflag_ich8lan(hw);
         e_dbg("Issuing a global reset to ich8lan\n");
@@ -3460,13 +3584,20 @@ void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
 void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw)
 {
         u32 phy_ctrl;
+        s32 ret_val;
 
         phy_ctrl = er32(PHY_CTRL);
         phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU | E1000_PHY_CTRL_GBE_DISABLE;
         ew32(PHY_CTRL, phy_ctrl);
 
-        if (hw->mac.type >= e1000_pchlan)
-                e1000_phy_hw_reset_ich8lan(hw);
+        if (hw->mac.type >= e1000_pchlan) {
+                e1000_oem_bits_config_ich8lan(hw, true);
+                ret_val = hw->phy.ops.acquire(hw);
+                if (ret_val)
+                        return;
+                e1000_write_smbus_addr(hw);
+                hw->phy.ops.release(hw);
+        }
 }
 
 /**
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 2b8ef44bd2b1..e561d15c3eb1 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -2704,6 +2704,16 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
         u32 psrctl = 0;
         u32 pages = 0;
 
+        /* Workaround Si errata on 82579 - configure jumbo frame flow */
+        if (hw->mac.type == e1000_pch2lan) {
+                s32 ret_val;
+
+                if (adapter->netdev->mtu > ETH_DATA_LEN)
+                        ret_val = e1000_lv_jumbo_workaround_ich8lan(hw, true);
+                else
+                        ret_val = e1000_lv_jumbo_workaround_ich8lan(hw, false);
+        }
+
         /* Program MC offset vector base */
         rctl = er32(RCTL);
         rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
@@ -2744,16 +2754,6 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
                 e1e_wphy(hw, 22, phy_data);
         }
 
-        /* Workaround Si errata on 82579 - configure jumbo frame flow */
-        if (hw->mac.type == e1000_pch2lan) {
-                s32 ret_val;
-
-                if (rctl & E1000_RCTL_LPE)
-                        ret_val = e1000_lv_jumbo_workaround_ich8lan(hw, true);
-                else
-                        ret_val = e1000_lv_jumbo_workaround_ich8lan(hw, false);
-        }
-
         /* Setup buffer sizes */
         rctl &= ~E1000_RCTL_SZ_4096;
         rctl |= E1000_RCTL_BSEX;
@@ -4833,6 +4833,15 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
                 return -EINVAL;
         }
 
+        /* Jumbo frame workaround on 82579 requires CRC be stripped */
+        if ((adapter->hw.mac.type == e1000_pch2lan) &&
+            !(adapter->flags2 & FLAG2_CRC_STRIPPING) &&
+            (new_mtu > ETH_DATA_LEN)) {
+                e_err("Jumbo Frames not supported on 82579 when CRC "
+                      "stripping is disabled.\n");
+                return -EINVAL;
+        }
+
         /* 82573 Errata 17 */
         if (((adapter->hw.mac.type == e1000_82573) ||
              (adapter->hw.mac.type == e1000_82574)) &&
diff --git a/drivers/net/eql.c b/drivers/net/eql.c
index dda2c7944da9..0cb1cf9cf4b0 100644
--- a/drivers/net/eql.c
+++ b/drivers/net/eql.c
@@ -555,6 +555,8 @@ static int eql_g_master_cfg(struct net_device *dev, master_config_t __user *mcp)
         equalizer_t *eql;
         master_config_t mc;
 
+        memset(&mc, 0, sizeof(master_config_t));
+
         if (eql_is_master(dev)) {
                 eql = netdev_priv(dev);
                 mc.max_slaves = eql->max_slaves;
diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index 3506fd6ad726..519e19e23955 100644
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -2928,7 +2928,7 @@ static int __devinit emac_probe(struct platform_device *ofdev,
         if (dev->emac_irq != NO_IRQ)
                 irq_dispose_mapping(dev->emac_irq);
  err_free:
-        kfree(ndev);
+        free_netdev(ndev);
  err_gone:
         /* if we were on the bootlist, remove us as we won't show up and
          * wake up all waiters to notify them in case they were waiting
@@ -2971,7 +2971,7 @@ static int __devexit emac_remove(struct platform_device *ofdev)
         if (dev->emac_irq != NO_IRQ)
                 irq_dispose_mapping(dev->emac_irq);
 
-        kfree(dev->ndev);
+        free_netdev(dev->ndev);
 
         return 0;
 }
diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c
index b4fb07a6f13f..51919fcd50c2 100644
--- a/drivers/net/ks8851.c
+++ b/drivers/net/ks8851.c
@@ -503,30 +503,33 @@ static void ks8851_rx_pkts(struct ks8851_net *ks)
                 ks8851_wrreg16(ks, KS_RXQCR,
                                ks->rc_rxqcr | RXQCR_SDA | RXQCR_ADRFE);
 
-                if (rxlen > 0) {
-                        skb = netdev_alloc_skb(ks->netdev, rxlen + 2 + 8);
-                        if (!skb) {
-                                /* todo - dump frame and move on */
-                        }
+                if (rxlen > 4) {
+                        unsigned int rxalign;
+
+                        rxlen -= 4;
+                        rxalign = ALIGN(rxlen, 4);
+                        skb = netdev_alloc_skb_ip_align(ks->netdev, rxalign);
+                        if (skb) {
 
-                        /* two bytes to ensure ip is aligned, and four bytes
-                         * for the status header and 4 bytes of garbage */
-                        skb_reserve(skb, 2 + 4 + 4);
+                                /* 4 bytes of status header + 4 bytes of
+                                 * garbage: we put them before ethernet
+                                 * header, so that they are copied,
+                                 * but ignored.
+                                 */
 
-                        rxpkt = skb_put(skb, rxlen - 4) - 8;
+                                rxpkt = skb_put(skb, rxlen) - 8;
 
-                        /* align the packet length to 4 bytes, and add 4 bytes
-                         * as we're getting the rx status header as well */
-                        ks8851_rdfifo(ks, rxpkt, ALIGN(rxlen, 4) + 8);
+                                ks8851_rdfifo(ks, rxpkt, rxalign + 8);
 
-                        if (netif_msg_pktdata(ks))
-                                ks8851_dbg_dumpkkt(ks, rxpkt);
+                                if (netif_msg_pktdata(ks))
+                                        ks8851_dbg_dumpkkt(ks, rxpkt);
 
-                        skb->protocol = eth_type_trans(skb, ks->netdev);
-                        netif_rx(skb);
+                                skb->protocol = eth_type_trans(skb, ks->netdev);
+                                netif_rx(skb);
 
-                        ks->netdev->stats.rx_packets++;
-                        ks->netdev->stats.rx_bytes += rxlen - 4;
+                                ks->netdev->stats.rx_packets++;
+                                ks->netdev->stats.rx_bytes += rxlen;
+                        }
                 }
 
                 ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c
index bdf2149e5296..87f0a93b165c 100644
--- a/drivers/net/ll_temac_main.c
+++ b/drivers/net/ll_temac_main.c
@@ -38,6 +38,7 @@
 #include <linux/of_device.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
+#include <linux/of_address.h>
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
 #include <linux/tcp.h>      /* needed for sizeof(tcphdr) */
diff --git a/drivers/net/ll_temac_mdio.c b/drivers/net/ll_temac_mdio.c
index 5ae28c975b38..8cf9d4f56bb2 100644
--- a/drivers/net/ll_temac_mdio.c
+++ b/drivers/net/ll_temac_mdio.c
@@ -10,6 +10,7 @@
 #include <linux/phy.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/of_address.h>
 #include <linux/slab.h>
 #include <linux/of_mdio.h>
 
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index cabae7bb1fc6..b075a35b85d4 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -1540,7 +1540,6 @@ netxen_process_rcv(struct netxen_adapter *adapter,
         if (pkt_offset)
                 skb_pull(skb, pkt_offset);
 
-        skb->truesize = skb->len + sizeof(struct sk_buff);
         skb->protocol = eth_type_trans(skb, netdev);
 
         napi_gro_receive(&sds_ring->napi, skb);
@@ -1602,8 +1601,6 @@ netxen_process_lro(struct netxen_adapter *adapter,
 
         skb_put(skb, lro_length + data_offset);
 
-        skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
-
         skb_pull(skb, l2_hdr_offset);
         skb->protocol = eth_type_trans(skb, netdev);
 
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index bc695d53cdcc..fe6983af6918 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -7269,32 +7269,28 @@ static int niu_get_ethtool_tcam_all(struct niu *np,
         struct niu_parent *parent = np->parent;
         struct niu_tcam_entry *tp;
         int i, idx, cnt;
-        u16 n_entries;
         unsigned long flags;
-
+        int ret = 0;
 
         /* put the tcam size here */
         nfc->data = tcam_get_size(np);
 
         niu_lock_parent(np, flags);
-        n_entries = nfc->rule_cnt;
         for (cnt = 0, i = 0; i < nfc->data; i++) {
                 idx = tcam_get_index(np, i);
                 tp = &parent->tcam[idx];
                 if (!tp->valid)
                         continue;
+                if (cnt == nfc->rule_cnt) {
+                        ret = -EMSGSIZE;
+                        break;
+                }
                 rule_locs[cnt] = i;
                 cnt++;
         }
         niu_unlock_parent(np, flags);
 
-        if (n_entries != cnt) {
-                /* print warning, this should not happen */
-                netdev_info(np->dev, "niu%d: In %s(): n_entries[%d] != cnt[%d]!!!\n",
-                            np->parent->index, __func__, n_entries, cnt);
-        }
-
-        return 0;
+        return ret;
 }
 
 static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index c3edfe4c2651..f9b509a6b09a 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -508,7 +508,8 @@ static int pcnet_confcheck(struct pcmcia_device *p_dev,
                            unsigned int vcc,
                            void *priv_data)
 {
-        int *has_shmem = priv_data;
+        int *priv = priv_data;
+        int try = (*priv & 0x1);
         int i;
         cistpl_io_t *io = &cfg->io;
 
@@ -525,77 +526,103 @@ static int pcnet_confcheck(struct pcmcia_device *p_dev,
                 i = p_dev->resource[1]->end = 0;
         }
 
-        *has_shmem = ((cfg->mem.nwin == 1) &&
-                      (cfg->mem.win[0].len >= 0x4000));
+        *priv &= ((cfg->mem.nwin == 1) &&
+                  (cfg->mem.win[0].len >= 0x4000)) ? 0x10 : ~0x10;
+
         p_dev->resource[0]->start = io->win[i].base;
         p_dev->resource[0]->end = io->win[i].len;
-        p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
+        if (!try)
+                p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
+        else
+                p_dev->io_lines = 16;
         if (p_dev->resource[0]->end + p_dev->resource[1]->end >= 32)
                 return try_io_port(p_dev);
 
-        return 0;
+        return -EINVAL;
+}
+
+static hw_info_t *pcnet_try_config(struct pcmcia_device *link,
+                                   int *has_shmem, int try)
+{
+        struct net_device *dev = link->priv;
+        hw_info_t *local_hw_info;
+        pcnet_dev_t *info = PRIV(dev);
+        int priv = try;
+        int ret;
+
+        ret = pcmcia_loop_config(link, pcnet_confcheck, &priv);
+        if (ret) {
+                dev_warn(&link->dev, "no useable port range found\n");
+                return NULL;
+        }
+        *has_shmem = (priv & 0x10);
+
+        if (!link->irq)
+                return NULL;
+
+        if (resource_size(link->resource[1]) == 8) {
+                link->conf.Attributes |= CONF_ENABLE_SPKR;
+                link->conf.Status = CCSR_AUDIO_ENA;
+        }
+        if ((link->manf_id == MANFID_IBM) &&
+            (link->card_id == PRODID_IBM_HOME_AND_AWAY))
+                link->conf.ConfigIndex |= 0x10;
+
+        ret = pcmcia_request_configuration(link, &link->conf);
+        if (ret)
+                return NULL;
+
+        dev->irq = link->irq;
+        dev->base_addr = link->resource[0]->start;
+
+        if (info->flags & HAS_MISC_REG) {
+                if ((if_port == 1) || (if_port == 2))
+                        dev->if_port = if_port;
+                else
+                        dev_notice(&link->dev, "invalid if_port requested\n");
+        } else
+                dev->if_port = 0;
+
+        if ((link->conf.ConfigBase == 0x03c0) &&
+            (link->manf_id == 0x149) && (link->card_id == 0xc1ab)) {
+                dev_info(&link->dev,
+                        "this is an AX88190 card - use axnet_cs instead.\n");
+                return NULL;
+        }
+
+        local_hw_info = get_hwinfo(link);
+        if (!local_hw_info)
+                local_hw_info = get_prom(link);
+        if (!local_hw_info)
+                local_hw_info = get_dl10019(link);
+        if (!local_hw_info)
+                local_hw_info = get_ax88190(link);
+        if (!local_hw_info)
+                local_hw_info = get_hwired(link);
+
+        return local_hw_info;
 }
 
 static int pcnet_config(struct pcmcia_device *link)
 {
     struct net_device *dev = link->priv;
     pcnet_dev_t *info = PRIV(dev);
-    int ret, start_pg, stop_pg, cm_offset;
+    int start_pg, stop_pg, cm_offset;
     int has_shmem = 0;
     hw_info_t *local_hw_info;
 
     dev_dbg(&link->dev, "pcnet_config\n");
 
-    ret = pcmcia_loop_config(link, pcnet_confcheck, &has_shmem);
-    if (ret)
-        goto failed;
-
-    if (!link->irq)
-            goto failed;
-
-    if (resource_size(link->resource[1]) == 8) {
-        link->conf.Attributes |= CONF_ENABLE_SPKR;
-        link->conf.Status = CCSR_AUDIO_ENA;
-    }
-    if ((link->manf_id == MANFID_IBM) &&
-        (link->card_id == PRODID_IBM_HOME_AND_AWAY))
-        link->conf.ConfigIndex |= 0x10;
-
-    ret = pcmcia_request_configuration(link, &link->conf);
-    if (ret)
-            goto failed;
-    dev->irq = link->irq;
-    dev->base_addr = link->resource[0]->start;
-    if (info->flags & HAS_MISC_REG) {
-        if ((if_port == 1) || (if_port == 2))
-            dev->if_port = if_port;
-        else
-            printk(KERN_NOTICE "pcnet_cs: invalid if_port requested\n");
-    } else {
-        dev->if_port = 0;
-    }
-
-    if ((link->conf.ConfigBase == 0x03c0) &&
-        (link->manf_id == 0x149) && (link->card_id == 0xc1ab)) {
-        printk(KERN_INFO "pcnet_cs: this is an AX88190 card!\n");
-        printk(KERN_INFO "pcnet_cs: use axnet_cs instead.\n");
-        goto failed;
-    }
-
-    local_hw_info = get_hwinfo(link);
-    if (local_hw_info == NULL)
-        local_hw_info = get_prom(link);
-    if (local_hw_info == NULL)
-        local_hw_info = get_dl10019(link);
-    if (local_hw_info == NULL)
-        local_hw_info = get_ax88190(link);
-    if (local_hw_info == NULL)
-        local_hw_info = get_hwired(link);
-
-    if (local_hw_info == NULL) {
-        printk(KERN_NOTICE "pcnet_cs: unable to read hardware net"
-               " address for io base %#3lx\n", dev->base_addr);
-        goto failed;
+    local_hw_info = pcnet_try_config(link, &has_shmem, 0);
+    if (!local_hw_info) {
+            /* check whether forcing io_lines to 16 helps... */
+            pcmcia_disable_device(link);
+            local_hw_info = pcnet_try_config(link, &has_shmem, 1);
+            if (local_hw_info == NULL) {
+                    dev_notice(&link->dev, "unable to read hardware net"
+                            " address for io base %#3lx\n", dev->base_addr);
+                    goto failed;
+            }
     }
 
     info->flags = local_hw_info->flags;
@@ -1637,6 +1664,7 @@ static struct pcmcia_device_id pcnet_ids[] = {
         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCETTX", 0x547e66dc, 0x6fc5459b),
         PCMCIA_DEVICE_PROD_ID12("iPort", "10/100 Ethernet Card", 0x56c538d2, 0x11b0ffc0),
         PCMCIA_DEVICE_PROD_ID12("KANSAI ELECTRIC CO.,LTD", "KLA-PCM/T", 0xb18dc3b4, 0xcc51a956),
+        PCMCIA_DEVICE_PROD_ID12("KENTRONICS", "KEP-230", 0xaf8144c9, 0x868f6616),
         PCMCIA_DEVICE_PROD_ID12("KCI", "PE520 PCMCIA Ethernet Adapter", 0xa89b87d3, 0x1eb88e64),
         PCMCIA_DEVICE_PROD_ID12("KINGMAX", "EN10T2T", 0x7bcb459a, 0xa5c81fa5),
         PCMCIA_DEVICE_PROD_ID12("Kingston", "KNE-PC2", 0x1128e633, 0xce2a89b3),
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 6a6b8199a0d6..6c58da2b882c 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -308,7 +308,7 @@ static int mdio_bus_suspend(struct device *dev)
          * may call phy routines that try to grab the same lock, and that may
          * lead to a deadlock.
          */
-        if (phydev->attached_dev)
+        if (phydev->attached_dev && phydev->adjust_link)
                 phy_stop_machine(phydev);
 
         if (!mdio_bus_phy_may_suspend(phydev))
@@ -331,7 +331,7 @@ static int mdio_bus_resume(struct device *dev)
                 return ret;
 
 no_resume:
-        if (phydev->attached_dev)
+        if (phydev->attached_dev && phydev->adjust_link)
                 phy_start_machine(phydev, NULL);
 
         return 0;
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 6695a51e09e9..736b91703b3e 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -1314,8 +1314,13 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
         hdrlen = (ppp->flags & SC_MP_XSHORTSEQ)? MPHDRLEN_SSN: MPHDRLEN;
         i = 0;
         list_for_each_entry(pch, &ppp->channels, clist) {
-                navail += pch->avail = (pch->chan != NULL);
-                pch->speed = pch->chan->speed;
+                if (pch->chan) {
+                        pch->avail = 1;
+                        navail++;
+                        pch->speed = pch->chan->speed;
+                } else {
+                        pch->avail = 0;
+                }
                 if (pch->avail) {
                         if (skb_queue_empty(&pch->file.xq) ||
                                 !pch->had_frag) {
diff --git a/drivers/net/pxa168_eth.c b/drivers/net/pxa168_eth.c
index 410ea0a61371..85eddda276bd 100644
--- a/drivers/net/pxa168_eth.c
+++ b/drivers/net/pxa168_eth.c
@@ -1606,6 +1606,8 @@ static int pxa168_eth_remove(struct platform_device *pdev)
 
         iounmap(pep->base);
         pep->base = NULL;
+        mdiobus_unregister(pep->smi_bus);
+        mdiobus_free(pep->smi_bus);
         unregister_netdev(dev);
         flush_scheduled_work();
         free_netdev(dev);
diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c
index 75ba744b173c..2c7cf0b64811 100644
--- a/drivers/net/qlcnic/qlcnic_init.c
+++ b/drivers/net/qlcnic/qlcnic_init.c
@@ -1316,7 +1316,7 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
                 return -ENOMEM;
         }
 
-        skb_reserve(skb, 2);
+        skb_reserve(skb, NET_IP_ALIGN);
 
         dma = pci_map_single(pdev, skb->data,
                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
@@ -1404,7 +1404,6 @@ qlcnic_process_rcv(struct qlcnic_adapter *adapter,
         if (pkt_offset)
                 skb_pull(skb, pkt_offset);
 
-        skb->truesize = skb->len + sizeof(struct sk_buff);
         skb->protocol = eth_type_trans(skb, netdev);
 
         napi_gro_receive(&sds_ring->napi, skb);
@@ -1466,8 +1465,6 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
 
         skb_put(skb, lro_length + data_offset);
 
-        skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
-
         skb_pull(skb, l2_hdr_offset);
         skb->protocol = eth_type_trans(skb, netdev);
 
@@ -1700,8 +1697,6 @@ qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
         if (pkt_offset)
                 skb_pull(skb, pkt_offset);
 
-        skb->truesize = skb->len + sizeof(struct sk_buff);
-
         if (!qlcnic_check_loopback_buff(skb->data))
                 adapter->diag_cnt++;
 
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 078bbf4e6f19..a0da4a17b025 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2934,7 +2934,7 @@ static const struct rtl_cfg_info {
                 .hw_start       = rtl_hw_start_8168,
                 .region         = 2,
                 .align          = 8,
-                .intr_event     = SYSErr | LinkChg | RxOverflow |
+                .intr_event     = SYSErr | RxFIFOOver | LinkChg | RxOverflow |
                                   TxErr | TxOK | RxOK | RxErr,
                 .napi_event     = TxErr | TxOK | RxOK | RxOverflow,
                 .features       = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
@@ -4625,8 +4625,7 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
                 }
 
                 /* Work around for rx fifo overflow */
-                if (unlikely(status & RxFIFOOver) &&
-                (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
+                if (unlikely(status & RxFIFOOver)) {
                         netif_stop_queue(dev);
                         rtl8169_tx_timeout(dev);
                         break;
diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c
index 07eb884ff982..44150f2f7bfd 100644
--- a/drivers/net/rionet.c
+++ b/drivers/net/rionet.c
@@ -384,7 +384,7 @@ static void rionet_remove(struct rio_dev *rdev)
         free_pages((unsigned long)rionet_active, rdev->net->hport->sys_size ?
                                         __ilog2(sizeof(void *)) + 4 : 0);
         unregister_netdev(ndev);
-        kfree(ndev);
+        free_netdev(ndev);
 
         list_for_each_entry_safe(peer, tmp, &rionet_peers, node) {
                 list_del(&peer->node);
diff --git a/drivers/net/sgiseeq.c b/drivers/net/sgiseeq.c
index cc4bd8c65f8b..9265315baa0b 100644
--- a/drivers/net/sgiseeq.c
+++ b/drivers/net/sgiseeq.c
@@ -804,7 +804,7 @@ static int __devinit sgiseeq_probe(struct platform_device *pdev)
 err_out_free_page:
         free_page((unsigned long) sp->srings);
 err_out_free_dev:
-        kfree(dev);
+        free_netdev(dev);
 
 err_out:
         return err;
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 0909ae934ad0..8150ba154116 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -58,6 +58,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_VERSION(SMSC_DRV_VERSION);
+MODULE_ALIAS("platform:smsc911x");
 
 #if USE_DEBUG > 0
 static int debug = 16;
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index bbb7951b9c4c..ea0461eb2dbe 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -1865,15 +1865,15 @@ static int stmmac_resume(struct platform_device *pdev)
         if (!netif_running(dev))
                 return 0;
 
-        spin_lock(&priv->lock);
-
         if (priv->shutdown) {
                 /* Re-open the interface and re-init the MAC/DMA
-                   and the rings. */
+                   and the rings (i.e. on hibernation stage) */
                 stmmac_open(dev);
-                goto out_resume;
+                return 0;
         }
 
+        spin_lock(&priv->lock);
+
         /* Power Down bit, into the PM register, is cleared
          * automatically as soon as a magic packet or a Wake-up frame
          * is received. Anyway, it's better to manually clear
@@ -1901,7 +1901,6 @@ static int stmmac_resume(struct platform_device *pdev)
 
         netif_start_queue(dev);
 
-out_resume:
         spin_unlock(&priv->lock);
         return 0;
 }
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index 5efa57757a2c..6888e3d41462 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -243,6 +243,7 @@ enum {
         NWayState               = (1 << 14) | (1 << 13) | (1 << 12),
         NWayRestart             = (1 << 12),
         NonselPortActive        = (1 << 9),
+        SelPortActive           = (1 << 8),
         LinkFailStatus          = (1 << 2),
         NetCxnErr               = (1 << 1),
 };
@@ -363,7 +364,9 @@ static u16 t21040_csr15[] = { 0, 0, 0x0006, 0x0000, 0x0000, };
 
 /* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/
 static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
-static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
+static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
+/* If on-chip autonegotiation is broken, use half-duplex (FF3F) instead */
+static u16 t21041_csr14_brk[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
 static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
 
 
@@ -1064,6 +1067,9 @@ static void de21041_media_timer (unsigned long data)
         unsigned int carrier;
         unsigned long flags;
 
+        /* clear port active bits */
+        dw32(SIAStatus, NonselPortActive | SelPortActive);
+
         carrier = (status & NetCxnErr) ? 0 : 1;
 
         if (carrier) {
@@ -1158,14 +1164,29 @@ no_link_yet:
 static void de_media_interrupt (struct de_private *de, u32 status)
 {
         if (status & LinkPass) {
+                /* Ignore if current media is AUI or BNC and we can't use TP */
+                if ((de->media_type == DE_MEDIA_AUI ||
+                     de->media_type == DE_MEDIA_BNC) &&
+                    (de->media_lock ||
+                     !de_ok_to_advertise(de, DE_MEDIA_TP_AUTO)))
+                        return;
+                /* If current media is not TP, change it to TP */
+                if ((de->media_type == DE_MEDIA_AUI ||
+                     de->media_type == DE_MEDIA_BNC)) {
+                        de->media_type = DE_MEDIA_TP_AUTO;
+                        de_stop_rxtx(de);
+                        de_set_media(de);
+                        de_start_rxtx(de);
+                }
                 de_link_up(de);
                 mod_timer(&de->media_timer, jiffies + DE_TIMER_LINK);
                 return;
         }
 
         BUG_ON(!(status & LinkFail));
-
-        if (netif_carrier_ok(de->dev)) {
+        /* Mark the link as down only if current media is TP */
+        if (netif_carrier_ok(de->dev) && de->media_type != DE_MEDIA_AUI &&
+            de->media_type != DE_MEDIA_BNC) {
                 de_link_down(de);
                 mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
         }
@@ -1229,6 +1250,7 @@ static void de_adapter_sleep (struct de_private *de)
         if (de->de21040)
                 return;
 
+        dw32(CSR13, 0); /* Reset phy */
         pci_read_config_dword(de->pdev, PCIPM, &pmctl);
         pmctl |= PM_Sleep;
         pci_write_config_dword(de->pdev, PCIPM, pmctl);
@@ -1574,12 +1596,15 @@ static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd)
                 return 0; /* nothing to change */
 
         de_link_down(de);
+        mod_timer(&de->media_timer, jiffies + DE_TIMER_NO_LINK);
         de_stop_rxtx(de);
 
         de->media_type = new_media;
         de->media_lock = media_lock;
         de->media_advertise = ecmd->advertising;
         de_set_media(de);
+        if (netif_running(de->dev))
+                de_start_rxtx(de);
 
         return 0;
 }
@@ -1911,8 +1936,14 @@ fill_defaults:
         for (i = 0; i < DE_MAX_MEDIA; i++) {
                 if (de->media[i].csr13 == 0xffff)
                         de->media[i].csr13 = t21041_csr13[i];
-                if (de->media[i].csr14 == 0xffff)
-                        de->media[i].csr14 = t21041_csr14[i];
+                if (de->media[i].csr14 == 0xffff) {
+                        /* autonegotiation is broken at least on some chip
+                           revisions - rev. 0x21 works, 0x11 does not */
+                        if (de->pdev->revision < 0x20)
+                                de->media[i].csr14 = t21041_csr14_brk[i];
+                        else
+                                de->media[i].csr14 = t21041_csr14[i];
+                }
                 if (de->media[i].csr15 == 0xffff)
                         de->media[i].csr15 = t21041_csr15[i];
         }
@@ -2158,6 +2189,8 @@ static int de_resume (struct pci_dev *pdev)
                 dev_err(&dev->dev, "pci_enable_device failed in resume\n");
                 goto out;
         }
+        pci_set_master(pdev);
+        de_init_rings(de);
         de_init_hw(de);
 out_attach:
         netif_device_attach(dev);
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 6efca66b8766..1cd752f9a6e1 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1652,6 +1652,8 @@ static int hso_get_count(struct hso_serial *serial,
         struct uart_icount cnow;
         struct hso_tiocmget  *tiocmget = serial->tiocmget;
 
+        memset(&icount, 0, sizeof(struct serial_icounter_struct));
+
         if (!tiocmget)
                  return -ENOENT;
         spin_lock_irq(&serial->serial_lock);
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 8ed30fa35d0a..b2bcf99e6f08 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -429,10 +429,6 @@ static const struct net_device_ops ipheth_netdev_ops = {
         .ndo_get_stats = &ipheth_stats,
 };
 
-static struct device_type ipheth_type = {
-        .name   = "wwan",
-};
-
 static int ipheth_probe(struct usb_interface *intf,
                         const struct usb_device_id *id)
 {
@@ -450,7 +446,7 @@ static int ipheth_probe(struct usb_interface *intf,
 
         netdev->netdev_ops = &ipheth_netdev_ops;
         netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
-        strcpy(netdev->name, "wwan%d");
+        strcpy(netdev->name, "eth%d");
 
         dev = netdev_priv(netdev);
         dev->udev = udev;
@@ -500,7 +496,6 @@ static int ipheth_probe(struct usb_interface *intf,
 
         SET_NETDEV_DEV(netdev, &intf->dev);
         SET_ETHTOOL_OPS(netdev, &ops);
-        SET_NETDEV_DEVTYPE(netdev, &ipheth_type);
 
         retval = register_netdev(netdev);
         if (retval) {
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index fd69095ef6e3..f53412368ce1 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -2824,7 +2824,7 @@ static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_devi
         netif_napi_add(dev, &vptr->napi, velocity_poll, VELOCITY_NAPI_WEIGHT);
 
         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
-                NETIF_F_HW_VLAN_RX | NETIF_F_IP_CSUM | NETIF_F_SG;
+                NETIF_F_HW_VLAN_RX | NETIF_F_IP_CSUM;
 
         ret = register_netdev(dev);
         if (ret < 0)
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 373dcfec689c..d77ce9906b6c 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1327,6 +1327,10 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
                         PCI_DMA_TODEVICE);
 
         rate = ieee80211_get_tx_rate(sc->hw, info);
+        if (!rate) {
+                ret = -EINVAL;
+                goto err_unmap;
+        }
 
         if (info->flags & IEEE80211_TX_CTL_NO_ACK)
                 flags |= AR5K_TXDESC_NOACK;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index b883b174385b..057fb69ddf7f 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -797,7 +797,7 @@ static bool ar9300_uncompress_block(struct ath_hw *ah,
                 length = block[it+1];
                 length &= 0xff;
 
-                if (length > 0 && spot >= 0 && spot+length < mdataSize) {
+                if (length > 0 && spot >= 0 && spot+length <= mdataSize) {
                         ath_print(common, ATH_DBG_EEPROM,
                                   "Restore at %d: spot=%d "
                                   "offset=%d length=%d\n",
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
index 7f48df1e2903..0b09db0f8e7d 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -62,7 +62,7 @@
 
 #define SD_NO_CTL               0xE0
 #define NO_CTL                  0xff
-#define CTL_MODE_M              7
+#define CTL_MODE_M              0xf
 #define CTL_11A                 0
 #define CTL_11B                 1
 #define CTL_11G                 2
diff --git a/drivers/net/wireless/ath/regd.h b/drivers/net/wireless/ath/regd.h
index a1c39526161a..345dd9721b41 100644
--- a/drivers/net/wireless/ath/regd.h
+++ b/drivers/net/wireless/ath/regd.h
@@ -31,7 +31,6 @@ enum ctl_group {
 #define NO_CTL 0xff
 #define SD_NO_CTL               0xE0
 #define NO_CTL                  0xff
-#define CTL_MODE_M              7
 #define CTL_11A                 0
 #define CTL_11B                 1
 #define CTL_11G                 2
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 07dbc2796448..e23c4060a0f0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2613,6 +2613,11 @@ int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                 return -EINVAL;
 
+        if (test_bit(STATUS_SCANNING, &priv->status)) {
+                IWL_DEBUG_INFO(priv, "scan in progress.\n");
+                return -EINVAL;
+        }
+
         if (mode >= IWL_MAX_FORCE_RESET) {
                 IWL_DEBUG_INFO(priv, "invalid reset request.\n");
                 return -EINVAL;
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index ba854c70ab94..87b634978b35 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -128,7 +128,7 @@ struct if_sdio_card {
         bool                    helper_allocated;
         bool                    firmware_allocated;
 
-        u8                      buffer[65536];
+        u8                      buffer[65536] __attribute__((aligned(4)));
 
         spinlock_t              lock;
         struct if_sdio_packet   *packets;
diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c
index 173aec3d6e7e..0e937dc0c9c4 100644
--- a/drivers/net/wireless/p54/txrx.c
+++ b/drivers/net/wireless/p54/txrx.c
@@ -446,7 +446,7 @@ static void p54_rx_frame_sent(struct p54_common *priv, struct sk_buff *skb)
         }
 
         if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
-             (!payload->status))
+             !(payload->status & P54_TX_FAILED))
                 info->flags |= IEEE80211_TX_STAT_ACK;
         if (payload->status & P54_TX_PSM_CANCELLED)
                 info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index a9352b2c7ac4..b7e755f4178a 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -141,16 +141,6 @@ static struct notifier_block module_load_nb = {
         .notifier_call = module_load_notify,
 };
 
-
-static void end_sync(void)
-{
-        end_cpu_work();
-        /* make sure we don't leak task structs */
-        process_task_mortuary();
-        process_task_mortuary();
-}
-
-
 int sync_start(void)
 {
         int err;
@@ -158,7 +148,7 @@ int sync_start(void)
         if (!zalloc_cpumask_var(&marked_cpus, GFP_KERNEL))
                 return -ENOMEM;
 
-        start_cpu_work();
+        mutex_lock(&buffer_mutex);
 
         err = task_handoff_register(&task_free_nb);
         if (err)
@@ -173,7 +163,10 @@ int sync_start(void)
         if (err)
                 goto out4;
 
+        start_cpu_work();
+
 out:
+        mutex_unlock(&buffer_mutex);
         return err;
 out4:
         profile_event_unregister(PROFILE_MUNMAP, &munmap_nb);
@@ -182,7 +175,6 @@ out3:
 out2:
         task_handoff_unregister(&task_free_nb);
 out1:
-        end_sync();
         free_cpumask_var(marked_cpus);
         goto out;
 }
@@ -190,11 +182,20 @@ out1:
 
 void sync_stop(void)
 {
+        /* flush buffers */
+        mutex_lock(&buffer_mutex);
+        end_cpu_work();
         unregister_module_notifier(&module_load_nb);
         profile_event_unregister(PROFILE_MUNMAP, &munmap_nb);
         profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb);
         task_handoff_unregister(&task_free_nb);
-        end_sync();
+        mutex_unlock(&buffer_mutex);
+        flush_scheduled_work();
+
+        /* make sure we don't leak task structs */
+        process_task_mortuary();
+        process_task_mortuary();
+
         free_cpumask_var(marked_cpus);
 }
 
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 219f79e2210a..f179ac2ea801 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -120,8 +120,6 @@ void end_cpu_work(void)
 
                 cancel_delayed_work(&b->work);
         }
-
-        flush_scheduled_work();
 }
 
 /*
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 45fcc1e96df9..3bc72d18b121 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -338,9 +338,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
         acpi_handle chandle, handle;
         struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
 
-        flags &= (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |
-                  OSC_SHPC_NATIVE_HP_CONTROL |
-                  OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+        flags &= OSC_SHPC_NATIVE_HP_CONTROL;
         if (!flags) {
                 err("Invalid flags %u specified!\n", flags);
                 return -EINVAL;
@@ -360,7 +358,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
                 acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
                 dbg("Trying to get hotplug control for %s\n",
                                 (char *)string.pointer);
-                status = acpi_pci_osc_control_set(handle, flags);
+                status = acpi_pci_osc_control_set(handle, &flags, flags);
                 if (ACPI_SUCCESS(status))
                         goto got_one;
                 if (status == AE_SUPPORT)
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 4ed76b47b6dc..73d513989263 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -176,19 +176,11 @@ static inline void pciehp_firmware_init(void)
 {
         pciehp_acpi_slot_detection_init();
 }
-
-static inline int pciehp_get_hp_hw_control_from_firmware(struct pci_dev *dev)
-{
-        int retval;
-        u32 flags = (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |
-                     OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
-        retval = acpi_get_hp_hw_control_from_firmware(dev, flags);
-        if (retval)
-                return retval;
-        return pciehp_acpi_slot_detection_check(dev);
-}
 #else
 #define pciehp_firmware_init()                          do {} while (0)
-#define pciehp_get_hp_hw_control_from_firmware(dev)     0
+static inline int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
+{
+        return 0;
+}
 #endif                          /* CONFIG_ACPI */
 #endif                          /* _PCIEHP_H */
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index 1f4000a5a108..2574700db461 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -85,9 +85,7 @@ static int __init dummy_probe(struct pcie_device *dev)
         acpi_handle handle;
         struct dummy_slot *slot, *tmp;
         struct pci_dev *pdev = dev->port;
-        /* Note: pciehp_detect_mode != PCIEHP_DETECT_ACPI here */
-        if (pciehp_get_hp_hw_control_from_firmware(pdev))
-                return -ENODEV;
+
         pos = pci_pcie_cap(pdev);
         if (!pos)
                 return -ENODEV;
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 3588ea61b0dd..aa5f3ff629ff 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -59,7 +59,7 @@ module_param(pciehp_force, bool, 0644);
 MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not");
 MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not");
 MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds");
-MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing");
+MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if OSHP is missing");
 
 #define PCIE_MODULE_NAME "pciehp"
 
@@ -235,7 +235,7 @@ static int pciehp_probe(struct pcie_device *dev)
                 dev_info(&dev->device,
                          "Bypassing BIOS check for pciehp use on %s\n",
                          pci_name(dev->port));
-        else if (pciehp_get_hp_hw_control_from_firmware(dev->port))
+        else if (pciehp_acpi_slot_detection_check(dev->port))
                 goto err_out_none;
 
         ctrl = pcie_init(dev);
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index c3ceebb5be84..4789f8e8bf7a 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -71,6 +71,49 @@
 #define DMA_32BIT_PFN           IOVA_PFN(DMA_BIT_MASK(32))
 #define DMA_64BIT_PFN           IOVA_PFN(DMA_BIT_MASK(64))
 
+/* page table handling */
+#define LEVEL_STRIDE            (9)
+#define LEVEL_MASK              (((u64)1 << LEVEL_STRIDE) - 1)
+
+static inline int agaw_to_level(int agaw)
+{
+        return agaw + 2;
+}
+
+static inline int agaw_to_width(int agaw)
+{
+        return 30 + agaw * LEVEL_STRIDE;
+}
+
+static inline int width_to_agaw(int width)
+{
+        return (width - 30) / LEVEL_STRIDE;
+}
+
+static inline unsigned int level_to_offset_bits(int level)
+{
+        return (level - 1) * LEVEL_STRIDE;
+}
+
+static inline int pfn_level_offset(unsigned long pfn, int level)
+{
+        return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
+}
+
+static inline unsigned long level_mask(int level)
+{
+        return -1UL << level_to_offset_bits(level);
+}
+
+static inline unsigned long level_size(int level)
+{
+        return 1UL << level_to_offset_bits(level);
+}
+
+static inline unsigned long align_to_level(unsigned long pfn, int level)
+{
+        return (pfn + level_size(level) - 1) & level_mask(level);
+}
 
 /* VT-d pages must always be _smaller_ than MM pages. Otherwise things
    are never going to work. */
@@ -434,8 +477,6 @@ void free_iova_mem(struct iova *iova)
 }
 
 
-static inline int width_to_agaw(int width);
-
 static int __iommu_calculate_agaw(struct intel_iommu *iommu, int max_gaw)
 {
         unsigned long sagaw;
@@ -646,51 +687,6 @@ out:
         spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-/* page table handling */
-#define LEVEL_STRIDE            (9)
-#define LEVEL_MASK              (((u64)1 << LEVEL_STRIDE) - 1)
-
-static inline int agaw_to_level(int agaw)
-{
-        return agaw + 2;
-}
-
-static inline int agaw_to_width(int agaw)
-{
-        return 30 + agaw * LEVEL_STRIDE;
-
-}
-
-static inline int width_to_agaw(int width)
-{
-        return (width - 30) / LEVEL_STRIDE;
-}
-
-static inline unsigned int level_to_offset_bits(int level)
-{
-        return (level - 1) * LEVEL_STRIDE;
-}
-
-static inline int pfn_level_offset(unsigned long pfn, int level)
-{
-        return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
-}
-
-static inline unsigned long level_mask(int level)
-{
-        return -1UL << level_to_offset_bits(level);
-}
-
-static inline unsigned long level_size(int level)
-{
-        return 1UL << level_to_offset_bits(level);
-}
-
-static inline unsigned long align_to_level(unsigned long pfn, int level)
-{
-        return (pfn + level_size(level) - 1) & level_mask(level);
-}
-
 static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain,
                                       unsigned long pfn)
 {
@@ -3761,6 +3757,33 @@ static void __devinit quirk_iommu_rwbf(struct pci_dev *dev)
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_rwbf);
 
+#define GGC 0x52
+#define GGC_MEMORY_SIZE_MASK    (0xf << 8)
+#define GGC_MEMORY_SIZE_NONE    (0x0 << 8)
+#define GGC_MEMORY_SIZE_1M      (0x1 << 8)
+#define GGC_MEMORY_SIZE_2M      (0x3 << 8)
+#define GGC_MEMORY_VT_ENABLED   (0x8 << 8)
+#define GGC_MEMORY_SIZE_2M_VT   (0x9 << 8)
+#define GGC_MEMORY_SIZE_3M_VT   (0xa << 8)
+#define GGC_MEMORY_SIZE_4M_VT   (0xb << 8)
+
+static void __devinit quirk_calpella_no_shadow_gtt(struct pci_dev *dev)
+{
+        unsigned short ggc;
+
+        if (pci_read_config_word(dev, GGC, &ggc))
+                return;
+
+        if (!(ggc & GGC_MEMORY_VT_ENABLED)) {
+                printk(KERN_INFO "DMAR: BIOS has allocated no shadow GTT; disabling IOMMU for graphics\n");
+                dmar_map_gfx = 0;
+        }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0040, quirk_calpella_no_shadow_gtt);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0044, quirk_calpella_no_shadow_gtt);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0062, quirk_calpella_no_shadow_gtt);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x006a, quirk_calpella_no_shadow_gtt);
+
 /* On Tylersburg chipsets, some BIOSes have been known to enable the
    ISOCH DMAR unit for the Azalia sound device, but not give it any
    TLB entries, which causes it to deadlock. Check for that.  We do
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index ce6a3666b3d9..553d8ee55c1c 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -608,7 +608,7 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno,
  * the VF BAR size multiplied by the number of VFs.  The alignment
  * is just the VF BAR size.
  */
-int pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
+resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
 {
         struct resource tmp;
         enum pci_bar_type type;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 679c39de6a89..6beb11b617a9 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -140,8 +140,10 @@ static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
 
 #ifdef CONFIG_PCIEAER
 void pci_no_aer(void);
+bool pci_aer_available(void);
 #else
 static inline void pci_no_aer(void) { }
+static inline bool pci_aer_available(void) { return false; }
 #endif
 
 static inline int pci_no_d1d2(struct pci_dev *dev)
@@ -262,7 +264,8 @@ extern int pci_iov_init(struct pci_dev *dev);
 extern void pci_iov_release(struct pci_dev *dev);
 extern int pci_iov_resource_bar(struct pci_dev *dev, int resno,
                                 enum pci_bar_type *type);
-extern int pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
+extern resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev,
+                                                    int resno);
 extern void pci_restore_iov_state(struct pci_dev *dev);
 extern int pci_iov_bus_range(struct pci_bus *bus);
 
@@ -318,7 +321,7 @@ static inline int pci_ats_enabled(struct pci_dev *dev)
 }
 #endif /* CONFIG_PCI_IOV */
 
-static inline int pci_resource_alignment(struct pci_dev *dev,
+static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
                                          struct resource *res)
 {
 #ifdef CONFIG_PCI_IOV
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile
index ea654545e7c4..00c62df5a9fc 100644
--- a/drivers/pci/pcie/Makefile
+++ b/drivers/pci/pcie/Makefile
@@ -6,10 +6,11 @@
 obj-$(CONFIG_PCIEASPM)          += aspm.o
 
 pcieportdrv-y                   := portdrv_core.o portdrv_pci.o portdrv_bus.o
+pcieportdrv-$(CONFIG_ACPI)      += portdrv_acpi.o
 
 obj-$(CONFIG_PCIEPORTBUS)       += pcieportdrv.o
 
 # Build PCI Express AER if needed
 obj-$(CONFIG_PCIEAER)           += aer/
 
-obj-$(CONFIG_PCIE_PME) += pme/
+obj-$(CONFIG_PCIE_PME) += pme.o
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 484cc55194b8..f409948e1a9b 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -72,6 +72,11 @@ void pci_no_aer(void)
         pcie_aer_disable = 1;   /* has priority over 'forceload' */
 }
 
+bool pci_aer_available(void)
+{
+        return !pcie_aer_disable && pci_msi_enabled();
+}
+
 static int set_device_error_reporting(struct pci_dev *dev, void *data)
 {
         bool enable = *((bool *)data);
@@ -411,9 +416,7 @@ static void aer_error_resume(struct pci_dev *dev)
  */
 static int __init aer_service_init(void)
 {
-        if (pcie_aer_disable)
-                return -ENXIO;
-        if (!pci_msi_enabled())
+        if (!pci_aer_available())
                 return -ENXIO;
         return pcie_port_service_register(&aerdriver);
 }
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index f278d7b0d95d..2bb9b8972211 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -19,42 +19,6 @@
 #include <acpi/apei.h>
 #include "aerdrv.h"
 
-/**
- * aer_osc_setup - run ACPI _OSC method
- * @pciedev: pcie_device which AER is being enabled on
- *
- * @return: Zero on success. Nonzero otherwise.
- *
- * Invoked when PCIe bus loads AER service driver. To avoid conflict with
- * BIOS AER support requires BIOS to yield AER control to OS native driver.
- **/
-int aer_osc_setup(struct pcie_device *pciedev)
-{
-        acpi_status status = AE_NOT_FOUND;
-        struct pci_dev *pdev = pciedev->port;
-        acpi_handle handle = NULL;
-
-        if (acpi_pci_disabled)
-                return -1;
-
-        handle = acpi_find_root_bridge_handle(pdev);
-        if (handle) {
-                status = acpi_pci_osc_control_set(handle,
-                                        OSC_PCI_EXPRESS_AER_CONTROL |
-                                        OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
-        }
-
-        if (ACPI_FAILURE(status)) {
-                dev_printk(KERN_DEBUG, &pciedev->device, "AER service couldn't "
-                           "init device: %s\n",
-                           (status == AE_SUPPORT || status == AE_NOT_FOUND) ?
-                           "no _OSC support" : "_OSC failed");
-                return -1;
-        }
-
-        return 0;
-}
-
 #ifdef CONFIG_ACPI_APEI
 static inline int hest_match_pci(struct acpi_hest_aer_common *p,
                                  struct pci_dev *pci)
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index fc0b5a93e1de..29e268fadf14 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -772,22 +772,10 @@ void aer_isr(struct work_struct *work)
  */
 int aer_init(struct pcie_device *dev)
 {
-        if (pcie_aer_get_firmware_first(dev->port)) {
-                dev_printk(KERN_DEBUG, &dev->device,
-                           "PCIe errors handled by platform firmware.\n");
-                goto out;
-        }
-
-        if (aer_osc_setup(dev))
-                goto out;
-
-        return 0;
-out:
         if (forceload) {
                 dev_printk(KERN_DEBUG, &dev->device,
                            "aerdrv forceload requested.\n");
                 pcie_aer_force_firmware_first(dev->port, 0);
-                return 0;
         }
-        return -ENXIO;
+        return 0;
 }
diff --git a/drivers/pci/pcie/pme/pcie_pme.c b/drivers/pci/pcie/pme.c
index bbdea18693d9..2f3c90407227 100644
--- a/drivers/pci/pcie/pme/pcie_pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -23,38 +23,13 @@
 #include <linux/pci-acpi.h>
 #include <linux/pm_runtime.h>
 
-#include "../../pci.h"
-#include "pcie_pme.h"
+#include "../pci.h"
+#include "portdrv.h"
 
 #define PCI_EXP_RTSTA_PME       0x10000 /* PME status */
 #define PCI_EXP_RTSTA_PENDING   0x20000 /* PME pending */
 
 /*
- * If set, this switch will prevent the PCIe root port PME service driver from
- * being registered.  Consequently, the interrupt-based PCIe PME signaling will
- * not be used by any PCIe root ports in that case.
- */
-static bool pcie_pme_disabled = true;
-
-/*
- * The PCI Express Base Specification 2.0, Section 6.1.8, states the following:
- * "In order to maintain compatibility with non-PCI Express-aware system
- * software, system power management logic must be configured by firmware to use
- * the legacy mechanism of signaling PME by default.  PCI Express-aware system
- * software must notify the firmware prior to enabling native, interrupt-based
- * PME signaling."  However, if the platform doesn't provide us with a suitable
- * notification mechanism or the notification fails, it is not clear whether or
- * not we are supposed to use the interrupt-based PCIe PME signaling.  The
- * switch below can be used to indicate the desired behaviour.  When set, it
- * will make the kernel use the interrupt-based PCIe PME signaling regardless of
- * the platform notification status, although the kernel will attempt to notify
- * the platform anyway.  When unset, it will prevent the kernel from using the
- * the interrupt-based PCIe PME signaling if the platform notification fails,
- * which is the default.
- */
-static bool pcie_pme_force_enable;
-
-/*
  * If this switch is set, MSI will not be used for PCIe PME signaling.  This
  * causes the PCIe port driver to use INTx interrupts only, but it turns out
  * that using MSI for PCIe PME signaling doesn't play well with PCIe PME-based
@@ -64,38 +39,13 @@ bool pcie_pme_msi_disabled;
 
 static int __init pcie_pme_setup(char *str)
 {
-        if (!strncmp(str, "auto", 4))
-                pcie_pme_disabled = false;
-        else if (!strncmp(str, "force", 5))
-                pcie_pme_force_enable = true;
-
-        str = strchr(str, ',');
-        if (str) {
-                str++;
-                str += strspn(str, " \t");
-                if (*str && !strcmp(str, "nomsi"))
-                        pcie_pme_msi_disabled = true;
-        }
+        if (!strncmp(str, "nomsi", 5))
+                pcie_pme_msi_disabled = true;
 
         return 1;
 }
 __setup("pcie_pme=", pcie_pme_setup);
 
-/**
- * pcie_pme_platform_setup - Ensure that the kernel controls the PCIe PME.
- * @srv: PCIe PME root port service to use for carrying out the check.
- *
- * Notify the platform that the native PCIe PME is going to be used and return
- * 'true' if the control of the PCIe PME registers has been acquired from the
- * platform.
- */
-static bool pcie_pme_platform_setup(struct pcie_device *srv)
-{
-        if (!pcie_pme_platform_notify(srv))
-                return true;
-        return pcie_pme_force_enable;
-}
-
 struct pcie_pme_service_data {
         spinlock_t lock;
         struct pcie_device *srv;
@@ -108,7 +58,7 @@ struct pcie_pme_service_data {
  * @dev: PCIe root port or event collector.
  * @enable: Enable or disable the interrupt.
  */
-static void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable)
+void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable)
 {
         int rtctl_pos;
         u16 rtctl;
@@ -417,9 +367,6 @@ static int pcie_pme_probe(struct pcie_device *srv)
         struct pcie_pme_service_data *data;
         int ret;
 
-        if (!pcie_pme_platform_setup(srv))
-                return -EACCES;
-
         data = kzalloc(sizeof(*data), GFP_KERNEL);
         if (!data)
                 return -ENOMEM;
@@ -509,8 +456,7 @@ static struct pcie_port_service_driver pcie_pme_driver = {
  */
 static int __init pcie_pme_service_init(void)
 {
-        return pcie_pme_disabled ?
-                -ENODEV : pcie_port_service_register(&pcie_pme_driver);
+        return pcie_port_service_register(&pcie_pme_driver);
 }
 
 module_init(pcie_pme_service_init);
diff --git a/drivers/pci/pcie/pme/Makefile b/drivers/pci/pcie/pme/Makefile
deleted file mode 100644
index 8b9238053080..000000000000
--- a/drivers/pci/pcie/pme/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for PCI-Express Root Port PME signaling driver
-#
-
-obj-$(CONFIG_PCIE_PME) += pmedriver.o
-
-pmedriver-objs := pcie_pme.o
-pmedriver-$(CONFIG_ACPI) += pcie_pme_acpi.o
diff --git a/drivers/pci/pcie/pme/pcie_pme.h b/drivers/pci/pcie/pme/pcie_pme.h
deleted file mode 100644
index b30d2b7c9775..000000000000
--- a/drivers/pci/pcie/pme/pcie_pme.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * drivers/pci/pcie/pme/pcie_pme.h
- *
- * PCI Express Root Port PME signaling support
- *
- * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
- */
-
-#ifndef _PCIE_PME_H_
-#define _PCIE_PME_H_
-
-struct pcie_device;
-
-#ifdef CONFIG_ACPI
-extern int pcie_pme_acpi_setup(struct pcie_device *srv);
-
-static inline int pcie_pme_platform_notify(struct pcie_device *srv)
-{
-        return pcie_pme_acpi_setup(srv);
-}
-#else /* !CONFIG_ACPI */
-static inline int pcie_pme_platform_notify(struct pcie_device *srv)
-{
-        return 0;
-}
-#endif /* !CONFIG_ACPI */
-
-#endif
diff --git a/drivers/pci/pcie/pme/pcie_pme_acpi.c b/drivers/pci/pcie/pme/pcie_pme_acpi.c
deleted file mode 100644
index 83ab2287ae3f..000000000000
--- a/drivers/pci/pcie/pme/pcie_pme_acpi.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * PCIe Native PME support, ACPI-related part
- *
- * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License V2.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/acpi.h>
-#include <linux/pci-acpi.h>
-#include <linux/pcieport_if.h>
-
-/**
- * pcie_pme_acpi_setup - Request the ACPI BIOS to release control over PCIe PME.
- * @srv - PCIe PME service for a root port or event collector.
- *
- * Invoked when the PCIe bus type loads PCIe PME service driver.  To avoid
- * conflict with the BIOS PCIe support requires the BIOS to yield PCIe PME
- * control to the kernel.
- */
-int pcie_pme_acpi_setup(struct pcie_device *srv)
-{
-        acpi_status status = AE_NOT_FOUND;
-        struct pci_dev *port = srv->port;
-        acpi_handle handle;
-        int error = 0;
-
-        if (acpi_pci_disabled)
-                return -ENOSYS;
-
-        dev_info(&port->dev, "Requesting control of PCIe PME from ACPI BIOS\n");
-
-        handle = acpi_find_root_bridge_handle(port);
-        if (!handle)
-                return -EINVAL;
-
-        status = acpi_pci_osc_control_set(handle,
-                        OSC_PCI_EXPRESS_PME_CONTROL |
-                        OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
-        if (ACPI_FAILURE(status)) {
-                dev_info(&port->dev,
-                        "Failed to receive control of PCIe PME service: %s\n",
-                        (status == AE_SUPPORT || status == AE_NOT_FOUND) ?
-                        "no _OSC support" : "ACPI _OSC failed");
-                error = -ENODEV;
-        }
-
-        return error;
-}
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 813a5c3427b6..7b5aba0a3291 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -20,6 +20,9 @@
 
 #define get_descriptor_id(type, service) (((type - 4) << 4) | service)
 
+extern bool pcie_ports_disabled;
+extern bool pcie_ports_auto;
+
 extern struct bus_type pcie_port_bus_type;
 extern int pcie_port_device_register(struct pci_dev *dev);
 #ifdef CONFIG_PM
@@ -30,6 +33,8 @@ extern void pcie_port_device_remove(struct pci_dev *dev);
 extern int __must_check pcie_port_bus_register(void);
 extern void pcie_port_bus_unregister(void);
 
+struct pci_dev;
+
 #ifdef CONFIG_PCIE_PME
 extern bool pcie_pme_msi_disabled;
 
@@ -42,9 +47,26 @@ static inline bool pcie_pme_no_msi(void)
 {
         return pcie_pme_msi_disabled;
 }
+
+extern void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable);
 #else /* !CONFIG_PCIE_PME */
 static inline void pcie_pme_disable_msi(void) {}
 static inline bool pcie_pme_no_msi(void) { return false; }
+static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {}
 #endif /* !CONFIG_PCIE_PME */
 
+#ifdef CONFIG_ACPI
+extern int pcie_port_acpi_setup(struct pci_dev *port, int *mask);
+
+static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
+{
+        return pcie_port_acpi_setup(port, mask);
+}
+#else /* !CONFIG_ACPI */
+static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
+{
+        return 0;
+}
+#endif /* !CONFIG_ACPI */
+
 #endif /* _PORTDRV_H_ */
diff --git a/drivers/pci/pcie/portdrv_acpi.c b/drivers/pci/pcie/portdrv_acpi.c
new file mode 100644
index 000000000000..b7c4cb1ccb23
--- /dev/null
+++ b/drivers/pci/pcie/portdrv_acpi.c
@@ -0,0 +1,77 @@
+/*
+ * PCIe Port Native Services Support, ACPI-Related Part
+ *
+ * Copyright (C) 2010 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License V2.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/pci-acpi.h>
+#include <linux/pcieport_if.h>
+
+#include "aer/aerdrv.h"
+#include "../pci.h"
+
+/**
+ * pcie_port_acpi_setup - Request the BIOS to release control of PCIe services.
+ * @port: PCIe Port service for a root port or event collector.
+ * @srv_mask: Bit mask of services that can be enabled for @port.
+ *
+ * Invoked when @port is identified as a PCIe port device.  To avoid conflicts
+ * with the BIOS PCIe port native services support requires the BIOS to yield
+ * control of these services to the kernel.  The mask of services that the BIOS
+ * allows to be enabled for @port is written to @srv_mask.
+ *
+ * NOTE: It turns out that we cannot do that for individual port services
+ * separately, because that would make some systems work incorrectly.
+ */
+int pcie_port_acpi_setup(struct pci_dev *port, int *srv_mask)
+{
+        acpi_status status;
+        acpi_handle handle;
+        u32 flags;
+
+        if (acpi_pci_disabled)
+                return 0;
+
+        handle = acpi_find_root_bridge_handle(port);
+        if (!handle)
+                return -EINVAL;
+
+        flags = OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL
+                | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
+                | OSC_PCI_EXPRESS_PME_CONTROL;
+
+        if (pci_aer_available()) {
+                if (pcie_aer_get_firmware_first(port))
+                        dev_dbg(&port->dev, "PCIe errors handled by BIOS.\n");
+                else
+                        flags |= OSC_PCI_EXPRESS_AER_CONTROL;
+        }
+
+        status = acpi_pci_osc_control_set(handle, &flags,
+                                        OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+        if (ACPI_FAILURE(status)) {
+                dev_dbg(&port->dev, "ACPI _OSC request failed (code %d)\n",
+                        status);
+                return -ENODEV;
+        }
+
+        dev_info(&port->dev, "ACPI _OSC control granted for 0x%02x\n", flags);
+
+        *srv_mask = PCIE_PORT_SERVICE_VC;
+        if (flags & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL)
+                *srv_mask |= PCIE_PORT_SERVICE_HP;
+        if (flags & OSC_PCI_EXPRESS_PME_CONTROL)
+                *srv_mask |= PCIE_PORT_SERVICE_PME;
+        if (flags & OSC_PCI_EXPRESS_AER_CONTROL)
+                *srv_mask |= PCIE_PORT_SERVICE_AER;
+
+        return 0;
+}
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index e73effbe402c..a9c222d79ebc 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -14,6 +14,8 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/pcieport_if.h>
+#include <linux/aer.h>
+#include <linux/pci-aspm.h>
 
 #include "../pci.h"
 #include "portdrv.h"
@@ -236,24 +238,64 @@ static int get_port_device_capability(struct pci_dev *dev)
         int services = 0, pos;
         u16 reg16;
         u32 reg32;
+        int cap_mask;
+        int err;
+
+        err = pcie_port_platform_notify(dev, &cap_mask);
+        if (pcie_ports_auto) {
+                if (err) {
+                        pcie_no_aspm();
+                        return 0;
+                }
+        } else {
+                cap_mask = PCIE_PORT_SERVICE_PME | PCIE_PORT_SERVICE_HP
+                                | PCIE_PORT_SERVICE_VC;
+                if (pci_aer_available())
+                        cap_mask |= PCIE_PORT_SERVICE_AER;
+        }
 
         pos = pci_pcie_cap(dev);
         pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &reg16);
         /* Hot-Plug Capable */
-        if (reg16 & PCI_EXP_FLAGS_SLOT) {
+        if ((cap_mask & PCIE_PORT_SERVICE_HP) && (reg16 & PCI_EXP_FLAGS_SLOT)) {
                 pci_read_config_dword(dev, pos + PCI_EXP_SLTCAP, &reg32);
-                if (reg32 & PCI_EXP_SLTCAP_HPC)
+                if (reg32 & PCI_EXP_SLTCAP_HPC) {
                         services |= PCIE_PORT_SERVICE_HP;
+                        /*
+                         * Disable hot-plug interrupts in case they have been
+                         * enabled by the BIOS and the hot-plug service driver
+                         * is not loaded.
+                         */
+                        pos += PCI_EXP_SLTCTL;
+                        pci_read_config_word(dev, pos, &reg16);
+                        reg16 &= ~(PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE);
+                        pci_write_config_word(dev, pos, reg16);
+                }
         }
         /* AER capable */
-        if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))
+        if ((cap_mask & PCIE_PORT_SERVICE_AER)
+            && pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR)) {
                 services |= PCIE_PORT_SERVICE_AER;
+                /*
+                 * Disable AER on this port in case it's been enabled by the
+                 * BIOS (the AER service driver will enable it when necessary).
+                 */
+                pci_disable_pcie_error_reporting(dev);
+        }
         /* VC support */
         if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VC))
                 services |= PCIE_PORT_SERVICE_VC;
         /* Root ports are capable of generating PME too */
-        if (dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
+        if ((cap_mask & PCIE_PORT_SERVICE_PME)
+            && dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) {
                 services |= PCIE_PORT_SERVICE_PME;
+                /*
+                 * Disable PME interrupt on this port in case it's been enabled
+                 * by the BIOS (the PME service driver will enable it when
+                 * necessary).
+                 */
+                pcie_pme_interrupt_enable(dev, false);
+        }
 
         return services;
 }
@@ -494,6 +536,9 @@ static void pcie_port_shutdown_service(struct device *dev) {}
  */
 int pcie_port_service_register(struct pcie_port_service_driver *new)
 {
+        if (pcie_ports_disabled)
+                return -ENODEV;
+
         new->driver.name = (char *)new->name;
         new->driver.bus = &pcie_port_bus_type;
         new->driver.probe = pcie_port_probe_service;
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 3debed25e46b..f9033e190fb6 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -15,6 +15,7 @@
 #include <linux/pcieport_if.h>
 #include <linux/aer.h>
 #include <linux/dmi.h>
+#include <linux/pci-aspm.h>
 
 #include "portdrv.h"
 #include "aer/aerdrv.h"
@@ -29,6 +30,31 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
+/* If this switch is set, PCIe port native services should not be enabled. */
+bool pcie_ports_disabled;
+
+/*
+ * If this switch is set, ACPI _OSC will be used to determine whether or not to
+ * enable PCIe port native services.
+ */
+bool pcie_ports_auto = true;
+
+static int __init pcie_port_setup(char *str)
+{
+        if (!strncmp(str, "compat", 6)) {
+                pcie_ports_disabled = true;
+        } else if (!strncmp(str, "native", 6)) {
+                pcie_ports_disabled = false;
+                pcie_ports_auto = false;
+        } else if (!strncmp(str, "auto", 4)) {
+                pcie_ports_disabled = false;
+                pcie_ports_auto = true;
+        }
+
+        return 1;
+}
+__setup("pcie_ports=", pcie_port_setup);
+
 /* global data */
 
 static int pcie_portdrv_restore_config(struct pci_dev *dev)
@@ -301,6 +327,11 @@ static int __init pcie_portdrv_init(void)
 {
         int retval;
 
+        if (pcie_ports_disabled) {
+                pcie_no_aspm();
+                return -EACCES;
+        }
+
         dmi_check_system(pcie_portdrv_dmi_table);
 
         retval = pcie_port_bus_register();
@@ -315,11 +346,4 @@ static int __init pcie_portdrv_init(void)
         return retval;
 }
 
-static void __exit pcie_portdrv_exit(void)
-{
-        pci_unregister_driver(&pcie_portdriver);
-        pcie_port_bus_unregister();
-}
-
 module_init(pcie_portdrv_init);
-module_exit(pcie_portdrv_exit);
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 659eaa0fc48f..968cfea04f74 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -49,7 +49,7 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf)
 }
 
 /* these strings match up with the values in pci_bus_speed */
-static char *pci_bus_speed_strings[] = {
+static const char *pci_bus_speed_strings[] = {
         "33 MHz PCI",           /* 0x00 */
         "66 MHz PCI",           /* 0x01 */
         "66 MHz PCI-X",         /* 0x02 */
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index 54aa1c238cb3..9ba4dade69a4 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -163,7 +163,7 @@ static int pcmcia_access_config(struct pcmcia_device *p_dev,
         c = p_dev->function_config;
 
         if (!(c->state & CONFIG_LOCKED)) {
-                dev_dbg(&s->dev, "Configuration isnt't locked\n");
+                dev_dbg(&p_dev->dev, "Configuration isnt't locked\n");
                 mutex_unlock(&s->ops_mutex);
                 return -EACCES;
         }
@@ -220,7 +220,7 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
         s->win[w].card_start = offset;
         ret = s->ops->set_mem_map(s, &s->win[w]);
         if (ret)
-                dev_warn(&s->dev, "failed to set_mem_map\n");
+                dev_warn(&p_dev->dev, "failed to set_mem_map\n");
         mutex_unlock(&s->ops_mutex);
         return ret;
 } /* pcmcia_map_mem_page */
@@ -244,18 +244,18 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
         c = p_dev->function_config;
 
         if (!(s->state & SOCKET_PRESENT)) {
-                dev_dbg(&s->dev, "No card present\n");
+                dev_dbg(&p_dev->dev, "No card present\n");
                 ret = -ENODEV;
                 goto unlock;
         }
         if (!(c->state & CONFIG_LOCKED)) {
-                dev_dbg(&s->dev, "Configuration isnt't locked\n");
+                dev_dbg(&p_dev->dev, "Configuration isnt't locked\n");
                 ret = -EACCES;
                 goto unlock;
         }
 
         if (mod->Attributes & (CONF_IRQ_CHANGE_VALID | CONF_VCC_CHANGE_VALID)) {
-                dev_dbg(&s->dev,
+                dev_dbg(&p_dev->dev,
                         "changing Vcc or IRQ is not allowed at this time\n");
                 ret = -EINVAL;
                 goto unlock;
@@ -265,20 +265,22 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
         if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
             (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
                 if (mod->Vpp1 != mod->Vpp2) {
-                        dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
+                        dev_dbg(&p_dev->dev,
+                                "Vpp1 and Vpp2 must be the same\n");
                         ret = -EINVAL;
                         goto unlock;
                 }
                 s->socket.Vpp = mod->Vpp1;
                 if (s->ops->set_socket(s, &s->socket)) {
-                        dev_printk(KERN_WARNING, &s->dev,
+                        dev_printk(KERN_WARNING, &p_dev->dev,
                                    "Unable to set VPP\n");
                         ret = -EIO;
                         goto unlock;
                 }
         } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
                    (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
-                dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
+                dev_dbg(&p_dev->dev,
+                        "changing Vcc is not allowed at this time\n");
                 ret = -EINVAL;
                 goto unlock;
         }
@@ -401,7 +403,7 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res)
         win = &s->win[w];
 
         if (!(p_dev->_win & CLIENT_WIN_REQ(w))) {
-                dev_dbg(&s->dev, "not releasing unknown window\n");
+                dev_dbg(&p_dev->dev, "not releasing unknown window\n");
                 mutex_unlock(&s->ops_mutex);
                 return -EINVAL;
         }
@@ -439,7 +441,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
                 return -ENODEV;
 
         if (req->IntType & INT_CARDBUS) {
-                dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
+                dev_dbg(&p_dev->dev, "IntType may not be INT_CARDBUS\n");
                 return -EINVAL;
         }
 
@@ -447,7 +449,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
         c = p_dev->function_config;
         if (c->state & CONFIG_LOCKED) {
                 mutex_unlock(&s->ops_mutex);
-                dev_dbg(&s->dev, "Configuration is locked\n");
+                dev_dbg(&p_dev->dev, "Configuration is locked\n");
                 return -EACCES;
         }
 
@@ -455,7 +457,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
         s->socket.Vpp = req->Vpp;
         if (s->ops->set_socket(s, &s->socket)) {
                 mutex_unlock(&s->ops_mutex);
-                dev_printk(KERN_WARNING, &s->dev,
+                dev_printk(KERN_WARNING, &p_dev->dev,
                            "Unable to set socket state\n");
                 return -EINVAL;
         }
@@ -569,19 +571,20 @@ int pcmcia_request_io(struct pcmcia_device *p_dev)
         int ret = -EINVAL;
 
         mutex_lock(&s->ops_mutex);
-        dev_dbg(&s->dev, "pcmcia_request_io: %pR , %pR", &c->io[0], &c->io[1]);
+        dev_dbg(&p_dev->dev, "pcmcia_request_io: %pR , %pR",
+                &c->io[0], &c->io[1]);
 
         if (!(s->state & SOCKET_PRESENT)) {
-                dev_dbg(&s->dev, "pcmcia_request_io: No card present\n");
+                dev_dbg(&p_dev->dev, "pcmcia_request_io: No card present\n");
                 goto out;
         }
 
         if (c->state & CONFIG_LOCKED) {
-                dev_dbg(&s->dev, "Configuration is locked\n");
+                dev_dbg(&p_dev->dev, "Configuration is locked\n");
                 goto out;
         }
         if (c->state & CONFIG_IO_REQ) {
-                dev_dbg(&s->dev, "IO already configured\n");
+                dev_dbg(&p_dev->dev, "IO already configured\n");
                 goto out;
         }
 
@@ -592,7 +595,13 @@ int pcmcia_request_io(struct pcmcia_device *p_dev)
         if (c->io[1].end) {
                 ret = alloc_io_space(s, &c->io[1], p_dev->io_lines);
                 if (ret) {
+                        struct resource tmp = c->io[0];
+                        /* release the previously allocated resource */
                         release_io_space(s, &c->io[0]);
+                        /* but preserve the settings, for they worked... */
+                        c->io[0].end = resource_size(&tmp);
+                        c->io[0].start = tmp.start;
+                        c->io[0].flags = tmp.flags;
                         goto out;
                 }
         } else
@@ -601,7 +610,7 @@ int pcmcia_request_io(struct pcmcia_device *p_dev)
         c->state |= CONFIG_IO_REQ;
         p_dev->_io = 1;
 
-        dev_dbg(&s->dev, "pcmcia_request_io succeeded: %pR , %pR",
+        dev_dbg(&p_dev->dev, "pcmcia_request_io succeeded: %pR , %pR",
                 &c->io[0], &c->io[1]);
 out:
         mutex_unlock(&s->ops_mutex);
@@ -800,7 +809,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
         int w;
 
         if (!(s->state & SOCKET_PRESENT)) {
-                dev_dbg(&s->dev, "No card present\n");
+                dev_dbg(&p_dev->dev, "No card present\n");
                 return -ENODEV;
         }
 
@@ -809,12 +818,12 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
                 req->Size = s->map_size;
         align = (s->features & SS_CAP_MEM_ALIGN) ? req->Size : s->map_size;
         if (req->Size & (s->map_size-1)) {
-                dev_dbg(&s->dev, "invalid map size\n");
+                dev_dbg(&p_dev->dev, "invalid map size\n");
                 return -EINVAL;
         }
         if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
             (req->Base & (align-1))) {
-                dev_dbg(&s->dev, "invalid base address\n");
+                dev_dbg(&p_dev->dev, "invalid base address\n");
                 return -EINVAL;
         }
         if (req->Base)
@@ -826,7 +835,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
                 if (!(s->state & SOCKET_WIN_REQ(w)))
                         break;
         if (w == MAX_WIN) {
-                dev_dbg(&s->dev, "all windows are used already\n");
+                dev_dbg(&p_dev->dev, "all windows are used already\n");
                 mutex_unlock(&s->ops_mutex);
                 return -EINVAL;
         }
@@ -837,7 +846,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
                 win->res = pcmcia_find_mem_region(req->Base, req->Size, align,
                                                 0, s);
                 if (!win->res) {
-                        dev_dbg(&s->dev, "allocating mem region failed\n");
+                        dev_dbg(&p_dev->dev, "allocating mem region failed\n");
                         mutex_unlock(&s->ops_mutex);
                         return -EINVAL;
                 }
@@ -851,7 +860,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
         win->card_start = 0;
 
         if (s->ops->set_mem_map(s, win) != 0) {
-                dev_dbg(&s->dev, "failed to set memory mapping\n");
+                dev_dbg(&p_dev->dev, "failed to set memory mapping\n");
                 mutex_unlock(&s->ops_mutex);
                 return -EIO;
         }
@@ -874,7 +883,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
         if (win->res)
                 request_resource(&iomem_resource, res);
 
-        dev_dbg(&s->dev, "request_window results in %pR\n", res);
+        dev_dbg(&p_dev->dev, "request_window results in %pR\n", res);
 
         mutex_unlock(&s->ops_mutex);
         *wh = res;
diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c
index b8a869af0f44..deef6656ab7b 100644
--- a/drivers/pcmcia/pd6729.c
+++ b/drivers/pcmcia/pd6729.c
@@ -646,7 +646,7 @@ static int __devinit pd6729_pci_probe(struct pci_dev *dev,
         if (!pci_resource_start(dev, 0)) {
                 dev_warn(&dev->dev, "refusing to load the driver as the "
                         "io_base is NULL.\n");
-                goto err_out_free_mem;
+                goto err_out_disable;
         }
 
         dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index e35ed128bdef..2d61186ad5a2 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3093,7 +3093,8 @@ static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
         TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */
 };
 
-typedef u16 tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
+typedef u16 tpacpi_keymap_entry_t;
+typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
 
 static int __init hotkey_init(struct ibm_init_struct *iibm)
 {
@@ -3230,7 +3231,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         };
 
 #define TPACPI_HOTKEY_MAP_SIZE          sizeof(tpacpi_keymap_t)
-#define TPACPI_HOTKEY_MAP_TYPESIZE      sizeof(tpacpi_keymap_t[0])
+#define TPACPI_HOTKEY_MAP_TYPESIZE      sizeof(tpacpi_keymap_entry_t)
 
         int res, i;
         int status;
diff --git a/drivers/power/apm_power.c b/drivers/power/apm_power.c
index 936bae560fa1..dc628cb2e762 100644
--- a/drivers/power/apm_power.c
+++ b/drivers/power/apm_power.c
@@ -233,6 +233,7 @@ static int calculate_capacity(enum apm_source source)
                 empty_design_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN;
                 now_prop = POWER_SUPPLY_PROP_ENERGY_NOW;
                 avg_prop = POWER_SUPPLY_PROP_ENERGY_AVG;
+                break;
         case SOURCE_VOLTAGE:
                 full_prop = POWER_SUPPLY_PROP_VOLTAGE_MAX;
                 empty_prop = POWER_SUPPLY_PROP_VOLTAGE_MIN;
diff --git a/drivers/power/intel_mid_battery.c b/drivers/power/intel_mid_battery.c
index c61ffec2ff10..2a10cd361181 100644
--- a/drivers/power/intel_mid_battery.c
+++ b/drivers/power/intel_mid_battery.c
@@ -185,8 +185,8 @@ static int pmic_scu_ipc_battery_property_get(struct battery_property *prop)
 {
         u32 data[3];
         u8 *p = (u8 *)&data[1];
-        int err = intel_scu_ipc_command(IPC_CMD_BATTERY_PROPERTY,
-                                IPCMSG_BATTERY, NULL, 0, data, 3);
+        int err = intel_scu_ipc_command(IPCMSG_BATTERY,
+                                IPC_CMD_BATTERY_PROPERTY, NULL, 0, data, 3);
 
         prop->capacity = data[0];
         prop->crnt = *p++;
@@ -207,7 +207,7 @@ static int pmic_scu_ipc_battery_property_get(struct battery_property *prop)
 
 static int pmic_scu_ipc_set_charger(int charger)
 {
-        return intel_scu_ipc_simple_command(charger, IPCMSG_BATTERY);
+        return intel_scu_ipc_simple_command(IPCMSG_BATTERY, charger);
 }
 
 /**
diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
index 7d149a8d8d9b..2ce2eb71d0f5 100644
--- a/drivers/regulator/88pm8607.c
+++ b/drivers/regulator/88pm8607.c
@@ -215,7 +215,7 @@ static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
         struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
         int ret = -EINVAL;
 
-        if (info->vol_table && (index < (2 << info->vol_nbits))) {
+        if (info->vol_table && (index < (1 << info->vol_nbits))) {
                 ret = info->vol_table[index];
                 if (info->slope_double)
                         ret <<= 1;
@@ -233,7 +233,7 @@ static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
                 max_uV = max_uV >> 1;
         }
         if (info->vol_table) {
-                for (i = 0; i < (2 << info->vol_nbits); i++) {
+                for (i = 0; i < (1 << info->vol_nbits); i++) {
                         if (!info->vol_table[i])
                                 break;
                         if ((min_uV <= info->vol_table[i])
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index 11790990277a..b349266a43de 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -634,12 +634,9 @@ static int __devinit ab3100_regulators_probe(struct platform_device *pdev)
                                 "%s: failed to register regulator %s err %d\n",
                                 __func__, ab3100_regulator_desc[i].name,
                                 err);
-                        i--;
                         /* remove the already registered regulators */
-                        while (i > 0) {
+                        while (--i >= 0)
                                 regulator_unregister(ab3100_regulators[i].rdev);
-                                i--;
-                        }
                         return err;
                 }
 
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index dc3f1a491675..28c7ae67cec9 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -157,7 +157,7 @@ static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector)
         if (info->fixed_uV)
                 return info->fixed_uV;
 
-        if (selector > info->voltages_len)
+        if (selector >= info->voltages_len)
                 return -EINVAL;
 
         return info->supported_voltages[selector];
@@ -344,13 +344,14 @@ static inline struct ab8500_regulator_info *find_regulator_info(int id)
 static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
 {
         struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
-        struct ab8500_platform_data *pdata = dev_get_platdata(ab8500->dev);
+        struct ab8500_platform_data *pdata;
         int i, err;
 
         if (!ab8500) {
                 dev_err(&pdev->dev, "null mfd parent\n");
                 return -EINVAL;
         }
+        pdata = dev_get_platdata(ab8500->dev);
 
         /* register all regulators */
         for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
@@ -368,11 +369,9 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
                         dev_err(&pdev->dev, "failed to register regulator %s\n",
                                         info->desc.name);
                         /* when we fail, un-register all earlier regulators */
-                        i--;
-                        while (i > 0) {
+                        while (--i >= 0) {
                                 info = &ab8500_regulator_info[i];
                                 regulator_unregister(info->regulator);
-                                i--;
                         }
                         return err;
                 }
diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c
index d59d2f2314af..df1fb53c09d2 100644
--- a/drivers/regulator/ad5398.c
+++ b/drivers/regulator/ad5398.c
@@ -25,7 +25,7 @@ struct ad5398_chip_info {
         unsigned int current_level;
         unsigned int current_mask;
         unsigned int current_offset;
-        struct regulator_dev rdev;
+        struct regulator_dev *rdev;
 };
 
 static int ad5398_calc_current(struct ad5398_chip_info *chip,
@@ -211,7 +211,6 @@ MODULE_DEVICE_TABLE(i2c, ad5398_id);
 static int __devinit ad5398_probe(struct i2c_client *client,
                                 const struct i2c_device_id *id)
 {
-        struct regulator_dev *rdev;
         struct regulator_init_data *init_data = client->dev.platform_data;
         struct ad5398_chip_info *chip;
         const struct ad5398_current_data_format *df =
@@ -233,9 +232,10 @@ static int __devinit ad5398_probe(struct i2c_client *client,
         chip->current_offset = df->current_offset;
         chip->current_mask = (chip->current_level - 1) << chip->current_offset;
 
-        rdev = regulator_register(&ad5398_reg, &client->dev, init_data, chip);
-        if (IS_ERR(rdev)) {
-                ret = PTR_ERR(rdev);
+        chip->rdev = regulator_register(&ad5398_reg, &client->dev,
+                                        init_data, chip);
+        if (IS_ERR(chip->rdev)) {
+                ret = PTR_ERR(chip->rdev);
                 dev_err(&client->dev, "failed to register %s %s\n",
                         id->name, ad5398_reg.name);
                 goto err;
@@ -254,7 +254,7 @@ static int __devexit ad5398_remove(struct i2c_client *client)
 {
         struct ad5398_chip_info *chip = i2c_get_clientdata(client);
 
-        regulator_unregister(&chip->rdev);
+        regulator_unregister(chip->rdev);
         kfree(chip);
         i2c_set_clientdata(client, NULL);
 
diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c
index e49d2bd393f2..d61ecb885a8c 100644
--- a/drivers/regulator/isl6271a-regulator.c
+++ b/drivers/regulator/isl6271a-regulator.c
@@ -165,7 +165,7 @@ static int __devinit isl6271a_probe(struct i2c_client *i2c,
         mutex_init(&pmic->mtx);
 
         for (i = 0; i < 3; i++) {
-                pmic->rdev[i] = regulator_register(&isl_rd[0], &i2c->dev,
+                pmic->rdev[i] = regulator_register(&isl_rd[i], &i2c->dev,
                                                 init_data, pmic);
                 if (IS_ERR(pmic->rdev[i])) {
                         dev_err(&i2c->dev, "failed to register %s\n", id->name);
diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index 8867c2710a6d..559cfa271a44 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -121,14 +121,14 @@ static int max1586_v6_set(struct regulator_dev *rdev, int min_uV, int max_uV)
         if (max_uV < MAX1586_V6_MIN_UV || max_uV > MAX1586_V6_MAX_UV)
                 return -EINVAL;
 
-        if (min_uV >= 3000000)
-                selector = 3;
-        if (min_uV < 3000000)
-                selector = 2;
-        if (min_uV < 2500000)
-                selector = 1;
         if (min_uV < 1800000)
                 selector = 0;
+        else if (min_uV < 2500000)
+                selector = 1;
+        else if (min_uV < 3000000)
+                selector = 2;
+        else if (min_uV >= 3000000)
+                selector = 3;
 
         if (max1586_v6_calc_voltage(selector) > max_uV)
                 return -EINVAL;
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index ab67298799f9..a1baf1fbe004 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -549,7 +549,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
         if (!max8998)
                 return -ENOMEM;
 
-        size = sizeof(struct regulator_dev *) * (pdata->num_regulators + 1);
+        size = sizeof(struct regulator_dev *) * pdata->num_regulators;
         max8998->rdev = kzalloc(size, GFP_KERNEL);
         if (!max8998->rdev) {
                 kfree(max8998);
@@ -557,7 +557,9 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
         }
 
         rdev = max8998->rdev;
+        max8998->dev = &pdev->dev;
         max8998->iodev = iodev;
+        max8998->num_regulators = pdata->num_regulators;
         platform_set_drvdata(pdev, max8998);
 
         for (i = 0; i < pdata->num_regulators; i++) {
@@ -583,7 +585,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
 
         return 0;
 err:
-        for (i = 0; i <= max8998->num_regulators; i++)
+        for (i = 0; i < max8998->num_regulators; i++)
                 if (rdev[i])
                         regulator_unregister(rdev[i]);
 
@@ -599,7 +601,7 @@ static int __devexit max8998_pmic_remove(struct platform_device *pdev)
         struct regulator_dev **rdev = max8998->rdev;
         int i;
 
-        for (i = 0; i <= max8998->num_regulators; i++)
+        for (i = 0; i < max8998->num_regulators; i++)
                 if (rdev[i])
                         regulator_unregister(rdev[i]);
 
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index c239f42aa4a3..020f5878d7ff 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -626,12 +626,6 @@ fail:
         return error;
 }
 
-/**
- * tps6507x_remove - TPS6507x driver i2c remove handler
- * @client: i2c driver client device structure
- *
- * Unregister TPS driver as an i2c client device driver
- */
 static int __devexit tps6507x_pmic_remove(struct platform_device *pdev)
 {
         struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev);
diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index 8cff1413a147..51237fbb1bbb 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -133,7 +133,7 @@ static int tps6586x_ldo_get_voltage(struct regulator_dev *rdev)
         mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
         val = (val & mask) >> ri->volt_shift;
 
-        if (val > ri->desc.n_voltages)
+        if (val >= ri->desc.n_voltages)
                 BUG();
 
         return ri->voltages[val] * 1000;
@@ -150,7 +150,7 @@ static int tps6586x_dvm_set_voltage(struct regulator_dev *rdev,
         if (ret)
                 return ret;
 
-        return tps6586x_set_bits(parent, ri->go_reg, ri->go_bit);
+        return tps6586x_set_bits(parent, ri->go_reg, 1 << ri->go_bit);
 }
 
 static int tps6586x_regulator_enable(struct regulator_dev *rdev)
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index e686cdb61b97..9edf8f692341 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -215,8 +215,7 @@ static int wm831x_gp_ldo_set_mode(struct regulator_dev *rdev,
 
         case REGULATOR_MODE_IDLE:
                 ret = wm831x_set_bits(wm831x, ctrl_reg,
-                                      WM831X_LDO1_LP_MODE,
-                                      WM831X_LDO1_LP_MODE);
+                                      WM831X_LDO1_LP_MODE, 0);
                 if (ret < 0)
                         return ret;
 
@@ -225,10 +224,12 @@ static int wm831x_gp_ldo_set_mode(struct regulator_dev *rdev,
                                       WM831X_LDO1_ON_MODE);
                 if (ret < 0)
                         return ret;
+                break;
 
         case REGULATOR_MODE_STANDBY:
                 ret = wm831x_set_bits(wm831x, ctrl_reg,
-                                      WM831X_LDO1_LP_MODE, 0);
+                                      WM831X_LDO1_LP_MODE,
+                                      WM831X_LDO1_LP_MODE);
                 if (ret < 0)
                         return ret;
 
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 0e6ed7db9364..fe4b8a8a9dfd 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1129,7 +1129,7 @@ static unsigned int wm8350_dcdc_get_mode(struct regulator_dev *rdev)
                         mode = REGULATOR_MODE_NORMAL;
         } else if (!active && !sleep)
                 mode = REGULATOR_MODE_IDLE;
-        else if (!sleep)
+        else if (sleep)
                 mode = REGULATOR_MODE_STANDBY;
 
         return mode;
diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c
index d26780ea254b..261a07e0fb24 100644
--- a/drivers/rtc/rtc-ab3100.c
+++ b/drivers/rtc/rtc-ab3100.c
@@ -235,6 +235,7 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
                 err = PTR_ERR(rtc);
                 return err;
         }
+        platform_set_drvdata(pdev, rtc);
 
         return 0;
 }
@@ -244,6 +245,7 @@ static int __exit ab3100_rtc_remove(struct platform_device *pdev)
         struct rtc_device *rtc = platform_get_drvdata(pdev);
 
         rtc_device_unregister(rtc);
+        platform_set_drvdata(pdev, NULL);
         return 0;
 }
 
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index 72b2bcc2c224..d4fb82d85e9b 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -426,7 +426,7 @@ static int bfin_rtc_suspend(struct platform_device *pdev, pm_message_t state)
                 enable_irq_wake(IRQ_RTC);
                 bfin_rtc_sync_pending(&pdev->dev);
         } else
-                bfin_rtc_int_clear(-1);
+                bfin_rtc_int_clear(0);
 
         return 0;
 }
@@ -435,8 +435,17 @@ static int bfin_rtc_resume(struct platform_device *pdev)
 {
         if (device_may_wakeup(&pdev->dev))
                 disable_irq_wake(IRQ_RTC);
-        else
-                bfin_write_RTC_ISTAT(-1);
+
+        /*
+         * Since only some of the RTC bits are maintained externally in the
+         * Vbat domain, we need to wait for the RTC MMRs to be synced into
+         * the core after waking up.  This happens every RTC 1HZ.  Once that
+         * has happened, we can go ahead and re-enable the important write
+         * complete interrupt event.
+         */
+        while (!(bfin_read_RTC_ISTAT() & RTC_ISTAT_SEC))
+                continue;
+        bfin_rtc_int_set(RTC_ISTAT_WRITE_COMPLETE);
 
         return 0;
 }
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 66377f3e28b8..d60557cae8ef 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -364,7 +364,7 @@ static int m41t80_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *t)
         t->time.tm_isdst = -1;
         t->enabled = !!(reg[M41T80_REG_ALARM_MON] & M41T80_ALMON_AFE);
         t->pending = !!(reg[M41T80_REG_FLAGS] & M41T80_FLAGS_AF);
-        return rtc_valid_tm(t);
+        return 0;
 }
 
 static struct rtc_class_ops m41t80_rtc_ops = {
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 6c418fe7f288..b7a6690e5b35 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -403,7 +403,7 @@ static int pl031_probe(struct amba_device *adev, struct amba_id *id)
         }
 
         if (request_irq(adev->irq[0], pl031_interrupt,
-                        IRQF_DISABLED | IRQF_SHARED, "rtc-pl031", ldata)) {
+                        IRQF_DISABLED, "rtc-pl031", ldata)) {
                 ret = -EIO;
                 goto out_no_irq;
         }
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index a0d3ec89d412..f57a87f4ae96 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -310,11 +310,6 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
         s3c_rtc_setaie(alrm->enabled);
 
-        if (alrm->enabled)
-                enable_irq_wake(s3c_rtc_alarmno);
-        else
-                disable_irq_wake(s3c_rtc_alarmno);
-
         return 0;
 }
 
@@ -587,6 +582,10 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)
                 ticnt_en_save &= S3C64XX_RTCCON_TICEN;
         }
         s3c_rtc_enable(pdev, 0);
+
+        if (device_may_wakeup(&pdev->dev))
+                enable_irq_wake(s3c_rtc_alarmno);
+
         return 0;
 }
 
@@ -600,6 +599,10 @@ static int s3c_rtc_resume(struct platform_device *pdev)
                 tmp = readb(s3c_rtc_base + S3C2410_RTCCON);
                 writeb(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON);
         }
+
+        if (device_may_wakeup(&pdev->dev))
+                disable_irq_wake(s3c_rtc_alarmno);
+
         return 0;
 }
 #else
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index b7de02525ec9..85cf607fc78f 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -217,8 +217,7 @@ tapeblock_setup_device(struct tape_device * device)
         if (!blkdat->request_queue)
                 return -ENOMEM;
 
-        elevator_exit(blkdat->request_queue->elevator);
-        rc = elevator_init(blkdat->request_queue, "noop");
+        rc = elevator_change(blkdat->request_queue, "noop");
         if (rc)
                 goto cleanup_queue;
 
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 6edf20b62de5..2c7d2d9be4d0 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1154,7 +1154,7 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv)
                                 dev_fsm, dev_fsm_len, GFP_KERNEL);
         if (priv->fsm == NULL) {
                 CTCMY_DBF_DEV(SETUP, dev, "init_fsm error");
-                kfree(dev);
+                free_netdev(dev);
                 return NULL;
         }
         fsm_newstate(priv->fsm, DEV_STATE_STOPPED);
@@ -1165,7 +1165,7 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv)
                 grp = ctcmpc_init_mpc_group(priv);
                 if (grp == NULL) {
                         MPC_DBF_DEV(SETUP, dev, "init_mpc_group error");
-                        kfree(dev);
+                        free_netdev(dev);
                         return NULL;
                 }
                 tasklet_init(&grp->mpc_tasklet2,
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 7d4d2275573c..7f11f3e48e12 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -300,8 +300,7 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
                            enum iscsi_host_param param, char *buf)
 {
         struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
-        int len = 0;
-        int status;
+        int status = 0;
 
         SE_DEBUG(DBG_LVL_8, "In beiscsi_get_host_param, param= %d\n", param);
         switch (param) {
@@ -315,7 +314,7 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
         default:
                 return iscsi_host_get_param(shost, param, buf);
         }
-        return len;
+        return status;
 }
 
 int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 26350e470bcc..877324fc594c 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -368,7 +368,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
         memset(req, 0, sizeof(*req));
         wrb->tag0 |= tag;
 
-        be_wrb_hdr_prepare(wrb, sizeof(*req), true, 1);
+        be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
         be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
                            OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
                            sizeof(*req));
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index cd05e049d5f6..d0c82340f0e2 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1404,13 +1404,13 @@ void scsi_print_sense(char *name, struct scsi_cmnd *cmd)
 {
         struct scsi_sense_hdr sshdr;
 
-        scmd_printk(KERN_INFO, cmd, "");
+        scmd_printk(KERN_INFO, cmd, " ");
         scsi_decode_sense_buffer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
                                  &sshdr);
         scsi_show_sense_hdr(&sshdr);
         scsi_decode_sense_extras(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
                                  &sshdr);
-        scmd_printk(KERN_INFO, cmd, "");
+        scmd_printk(KERN_INFO, cmd, " ");
         scsi_show_extd_sense(sshdr.asc, sshdr.ascq);
 }
 EXPORT_SYMBOL(scsi_print_sense);
@@ -1453,7 +1453,7 @@ EXPORT_SYMBOL(scsi_show_result);
 
 void scsi_print_result(struct scsi_cmnd *cmd)
 {
-        scmd_printk(KERN_INFO, cmd, "");
+        scmd_printk(KERN_INFO, cmd, " ");
         scsi_show_result(cmd->result);
 }
 EXPORT_SYMBOL(scsi_print_result);
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 4f5551b5fe53..c5d0606ad097 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3231,6 +3231,12 @@ static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
         misc_fw_support = readl(&cfgtable->misc_fw_support);
         use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
 
+        /* The doorbell reset seems to cause lockups on some Smart
+         * Arrays (e.g. P410, P410i, maybe others).  Until this is
+         * fixed or at least isolated, avoid the doorbell reset.
+         */
+        use_doorbell = 0;
+
         rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell);
         if (rc)
                 goto unmap_cfgtable;
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index fda4de3440c4..e88bbdde49c5 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -865,7 +865,7 @@ void osd_req_read(struct osd_request *or,
 {
         _osd_req_encode_common(or, OSD_ACT_READ, obj, offset, len);
         WARN_ON(or->in.bio || or->in.total_bytes);
-        WARN_ON(1 == (bio->bi_rw & REQ_WRITE));
+        WARN_ON(bio->bi_rw & REQ_WRITE);
         or->in.bio = bio;
         or->in.total_bytes = len;
 }
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 420238cc794e..114bc5a81171 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1838,26 +1838,33 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
 
         qla24xx_disable_vp(vha);
 
+        vha->flags.delete_progress = 1;
+
         fc_remove_host(vha->host);
 
         scsi_remove_host(vha->host);
 
-        qla2x00_free_fcports(vha);
+        if (vha->timer_active) {
+                qla2x00_vp_stop_timer(vha);
+                DEBUG15(printk(KERN_INFO "scsi(%ld): timer for the vport[%d]"
+                " = %p has stopped\n", vha->host_no, vha->vp_idx, vha));
+        }
 
         qla24xx_deallocate_vp_id(vha);
 
+        /* No pending activities shall be there on the vha now */
+        DEBUG(msleep(random32()%10));  /* Just to see if something falls on
+                                        * the net we have placed below */
+
+        BUG_ON(atomic_read(&vha->vref_count));
+
+        qla2x00_free_fcports(vha);
+
         mutex_lock(&ha->vport_lock);
         ha->cur_vport_count--;
         clear_bit(vha->vp_idx, ha->vp_idx_map);
         mutex_unlock(&ha->vport_lock);
 
-        if (vha->timer_active) {
-                qla2x00_vp_stop_timer(vha);
-                DEBUG15(printk ("scsi(%ld): timer for the vport[%d] = %p "
-                    "has stopped\n",
-                    vha->host_no, vha->vp_idx, vha));
-        }
-
         if (vha->req->id && !ha->flags.cpu_affinity_enabled) {
                 if (qla25xx_delete_req_que(vha, vha->req) != QLA_SUCCESS)
                         qla_printk(KERN_WARNING, ha,
diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index 6cfc28a25eb3..b74e6b5743dc 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -29,8 +29,6 @@
 /* #define QL_DEBUG_LEVEL_17 */ /* Output EEH trace messages */
 /* #define QL_DEBUG_LEVEL_18 */ /* Output T10 CRC trace messages */
 
-/* #define QL_PRINTK_BUF */ /* Captures printk to buffer */
-
 /*
 * Macros use for debugging the driver.
 */
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 3a432ea0c7a3..d2a4e1530708 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2641,6 +2641,7 @@ struct qla_hw_data {
 #define MBX_UPDATE_FLASH_ACTIVE 3
 
         struct mutex vport_lock;        /* Virtual port synchronization */
+        spinlock_t vport_slock; /* order is hardware_lock, then vport_slock */
         struct completion mbx_cmd_comp; /* Serialize mbx access */
         struct completion mbx_intr_comp;  /* Used for completion notification */
         struct completion dcbx_comp;    /* For set port config notification */
@@ -2828,6 +2829,7 @@ typedef struct scsi_qla_host {
                 uint32_t        management_server_logged_in :1;
                 uint32_t        process_response_queue  :1;
                 uint32_t        difdix_supported:1;
+                uint32_t        delete_progress:1;
         } flags;
 
         atomic_t        loop_state;
@@ -2922,6 +2924,8 @@ typedef struct scsi_qla_host {
         struct req_que *req;
         int             fw_heartbeat_counter;
         int             seconds_since_last_heartbeat;
+
+        atomic_t        vref_count;
 } scsi_qla_host_t;
 
 /*
@@ -2932,6 +2936,22 @@ typedef struct scsi_qla_host {
          test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || \
          atomic_read(&ha->loop_state) == LOOP_DOWN)
 
+#define QLA_VHA_MARK_BUSY(__vha, __bail) do {                \
+        atomic_inc(&__vha->vref_count);                      \
+        mb();                                                \
+        if (__vha->flags.delete_progress) {                  \
+                atomic_dec(&__vha->vref_count);              \
+                __bail = 1;                                  \
+        } else {                                             \
+                __bail = 0;                                  \
+        }                                                    \
+} while (0)
+
+#define QLA_VHA_MARK_NOT_BUSY(__vha) do {                    \
+        atomic_dec(&__vha->vref_count);                      \
+} while (0)
+
+
 #define qla_printk(level, ha, format, arg...) \
         dev_printk(level , &((ha)->pdev->dev) , format , ## arg)
 
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index d863ed2619b5..9c383baebe27 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -69,21 +69,29 @@ qla2x00_ctx_sp_free(srb_t *sp)
 {
         struct srb_ctx *ctx = sp->ctx;
         struct srb_iocb *iocb = ctx->u.iocb_cmd;
+        struct scsi_qla_host *vha = sp->fcport->vha;
 
         del_timer_sync(&iocb->timer);
         kfree(iocb);
         kfree(ctx);
         mempool_free(sp, sp->fcport->vha->hw->srb_mempool);
+
+        QLA_VHA_MARK_NOT_BUSY(vha);
 }
 
 inline srb_t *
 qla2x00_get_ctx_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size,
     unsigned long tmo)
 {
-        srb_t *sp;
+        srb_t *sp = NULL;
         struct qla_hw_data *ha = vha->hw;
         struct srb_ctx *ctx;
         struct srb_iocb *iocb;
+        uint8_t bail;
+
+        QLA_VHA_MARK_BUSY(vha, bail);
+        if (bail)
+                return NULL;
 
         sp = mempool_alloc(ha->srb_mempool, GFP_KERNEL);
         if (!sp)
@@ -116,6 +124,8 @@ qla2x00_get_ctx_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size,
         iocb->timer.function = qla2x00_ctx_sp_timeout;
         add_timer(&iocb->timer);
 done:
+        if (!sp)
+                QLA_VHA_MARK_NOT_BUSY(vha);
         return sp;
 }
 
@@ -1777,11 +1787,15 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
                 qla2x00_init_response_q_entries(rsp);
         }
 
+        spin_lock_irqsave(&ha->vport_slock, flags);
         /* Clear RSCN queue. */
         list_for_each_entry(vp, &ha->vp_list, list) {
                 vp->rscn_in_ptr = 0;
                 vp->rscn_out_ptr = 0;
         }
+
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
         ha->isp_ops->config_rings(vha);
 
         spin_unlock_irqrestore(&ha->hardware_lock, flags);
@@ -3218,12 +3232,17 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
                 /* Bypass virtual ports of the same host. */
                 found = 0;
                 if (ha->num_vhosts) {
+                        unsigned long flags;
+
+                        spin_lock_irqsave(&ha->vport_slock, flags);
                         list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
                                 if (new_fcport->d_id.b24 == vp->d_id.b24) {
                                         found = 1;
                                         break;
                                 }
                         }
+                        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                         if (found)
                                 continue;
                 }
@@ -3343,6 +3362,7 @@ qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
         struct qla_hw_data *ha = vha->hw;
         struct scsi_qla_host *vp;
         struct scsi_qla_host *tvp;
+        unsigned long flags = 0;
 
         rval = QLA_SUCCESS;
 
@@ -3367,6 +3387,8 @@ qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
                 /* Check for loop ID being already in use. */
                 found = 0;
                 fcport = NULL;
+
+                spin_lock_irqsave(&ha->vport_slock, flags);
                 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
                         list_for_each_entry(fcport, &vp->vp_fcports, list) {
                                 if (fcport->loop_id == dev->loop_id &&
@@ -3379,6 +3401,7 @@ qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
                         if (found)
                                 break;
                 }
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
 
                 /* If not in use then it is free to use. */
                 if (!found) {
@@ -3791,14 +3814,27 @@ void
 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
 {
         fc_port_t *fcport;
-        struct scsi_qla_host *tvp, *vha;
+        struct scsi_qla_host *vha;
+        struct qla_hw_data *ha = base_vha->hw;
+        unsigned long flags;
 
+        spin_lock_irqsave(&ha->vport_slock, flags);
         /* Go with deferred removal of rport references. */
-        list_for_each_entry_safe(vha, tvp, &base_vha->hw->vp_list, list)
-                list_for_each_entry(fcport, &vha->vp_fcports, list)
+        list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
+                atomic_inc(&vha->vref_count);
+                list_for_each_entry(fcport, &vha->vp_fcports, list) {
                         if (fcport && fcport->drport &&
-                            atomic_read(&fcport->state) != FCS_UNCONFIGURED)
+                            atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
+                                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                                 qla2x00_rport_del(fcport);
+
+                                spin_lock_irqsave(&ha->vport_slock, flags);
+                        }
+                }
+                atomic_dec(&vha->vref_count);
+        }
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
 }
 
 void
@@ -3806,7 +3842,7 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
 {
         struct qla_hw_data *ha = vha->hw;
         struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev);
-        struct scsi_qla_host *tvp;
+        unsigned long flags;
 
         vha->flags.online = 0;
         ha->flags.chip_reset_done = 0;
@@ -3824,8 +3860,18 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
                 atomic_set(&vha->loop_state, LOOP_DOWN);
                 qla2x00_mark_all_devices_lost(vha, 0);
-                list_for_each_entry_safe(vp, tvp, &base_vha->hw->vp_list, list)
+
+                spin_lock_irqsave(&ha->vport_slock, flags);
+                list_for_each_entry(vp, &base_vha->hw->vp_list, list) {
+                        atomic_inc(&vp->vref_count);
+                        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                         qla2x00_mark_all_devices_lost(vp, 0);
+
+                        spin_lock_irqsave(&ha->vport_slock, flags);
+                        atomic_dec(&vp->vref_count);
+                }
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
         } else {
                 if (!atomic_read(&vha->loop_down_timer))
                         atomic_set(&vha->loop_down_timer,
@@ -3862,8 +3908,8 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
         uint8_t        status = 0;
         struct qla_hw_data *ha = vha->hw;
         struct scsi_qla_host *vp;
-        struct scsi_qla_host *tvp;
         struct req_que *req = ha->req_q_map[0];
+        unsigned long flags;
 
         if (vha->flags.online) {
                 qla2x00_abort_isp_cleanup(vha);
@@ -3970,10 +4016,21 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
                 DEBUG(printk(KERN_INFO
                                 "qla2x00_abort_isp(%ld): succeeded.\n",
                                 vha->host_no));
-                list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
-                        if (vp->vp_idx)
+
+                spin_lock_irqsave(&ha->vport_slock, flags);
+                list_for_each_entry(vp, &ha->vp_list, list) {
+                        if (vp->vp_idx) {
+                                atomic_inc(&vp->vref_count);
+                                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                                 qla2x00_vp_abort_isp(vp);
+
+                                spin_lock_irqsave(&ha->vport_slock, flags);
+                                atomic_dec(&vp->vref_count);
+                        }
                 }
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
         } else {
                 qla_printk(KERN_INFO, ha,
                         "qla2x00_abort_isp: **** FAILED ****\n");
@@ -5185,7 +5242,7 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
         struct req_que *req = ha->req_q_map[0];
         struct rsp_que *rsp = ha->rsp_q_map[0];
         struct scsi_qla_host *vp;
-        struct scsi_qla_host *tvp;
+        unsigned long flags;
 
         status = qla2x00_init_rings(vha);
         if (!status) {
@@ -5272,10 +5329,21 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
                 DEBUG(printk(KERN_INFO
                         "qla82xx_restart_isp(%ld): succeeded.\n",
                         vha->host_no));
-                list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
-                        if (vp->vp_idx)
+
+                spin_lock_irqsave(&ha->vport_slock, flags);
+                list_for_each_entry(vp, &ha->vp_list, list) {
+                        if (vp->vp_idx) {
+                                atomic_inc(&vp->vref_count);
+                                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                                 qla2x00_vp_abort_isp(vp);
+
+                                spin_lock_irqsave(&ha->vport_slock, flags);
+                                atomic_dec(&vp->vref_count);
+                        }
                 }
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
         } else {
                 qla_printk(KERN_INFO, ha,
                         "qla82xx_restart_isp: **** FAILED ****\n");
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 6982ba70e12a..28f65be19dad 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1706,19 +1706,20 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
                                 cp->result = DID_ERROR << 16;
                                 break;
                         }
-                } else if (!lscsi_status) {
+                } else {
                         DEBUG2(qla_printk(KERN_INFO, ha,
                             "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x "
                             "of 0x%x bytes).\n", vha->host_no, cp->device->id,
                             cp->device->lun, resid, scsi_bufflen(cp)));
 
-                        cp->result = DID_ERROR << 16;
-                        break;
+                        cp->result = DID_ERROR << 16 | lscsi_status;
+                        goto check_scsi_status;
                 }
 
                 cp->result = DID_OK << 16 | lscsi_status;
                 logit = 0;
 
+check_scsi_status:
                 /*
                  * Check to see if SCSI Status is non zero. If so report SCSI
                  * Status.
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 6009b0c69488..a595ec8264f8 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2913,7 +2913,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
         uint16_t stat = le16_to_cpu(rptid_entry->vp_idx);
         struct qla_hw_data *ha = vha->hw;
         scsi_qla_host_t *vp;
-        scsi_qla_host_t *tvp;
+        unsigned long   flags;
 
         if (rptid_entry->entry_status != 0)
                 return;
@@ -2945,9 +2945,12 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
                         return;
                 }
 
-                list_for_each_entry_safe(vp, tvp, &ha->vp_list, list)
+                spin_lock_irqsave(&ha->vport_slock, flags);
+                list_for_each_entry(vp, &ha->vp_list, list)
                         if (vp_idx == vp->vp_idx)
                                 break;
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                 if (!vp)
                         return;
 
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 987c5b0ca78e..2b69392a71a1 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -30,6 +30,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
 {
         uint32_t vp_id;
         struct qla_hw_data *ha = vha->hw;
+        unsigned long flags;
 
         /* Find an empty slot and assign an vp_id */
         mutex_lock(&ha->vport_lock);
@@ -44,7 +45,11 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
         set_bit(vp_id, ha->vp_idx_map);
         ha->num_vhosts++;
         vha->vp_idx = vp_id;
+
+        spin_lock_irqsave(&ha->vport_slock, flags);
         list_add_tail(&vha->list, &ha->vp_list);
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
         mutex_unlock(&ha->vport_lock);
         return vp_id;
 }
@@ -54,12 +59,31 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
 {
         uint16_t vp_id;
         struct qla_hw_data *ha = vha->hw;
+        unsigned long flags = 0;
 
         mutex_lock(&ha->vport_lock);
+        /*
+         * Wait for all pending activities to finish before removing vport from
+         * the list.
+         * Lock needs to be held for safe removal from the list (it
+         * ensures no active vp_list traversal while the vport is removed
+         * from the queue)
+         */
+        spin_lock_irqsave(&ha->vport_slock, flags);
+        while (atomic_read(&vha->vref_count)) {
+                spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+                msleep(500);
+
+                spin_lock_irqsave(&ha->vport_slock, flags);
+        }
+        list_del(&vha->list);
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
         vp_id = vha->vp_idx;
         ha->num_vhosts--;
         clear_bit(vp_id, ha->vp_idx_map);
-        list_del(&vha->list);
+
         mutex_unlock(&ha->vport_lock);
 }
 
@@ -68,12 +92,17 @@ qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
 {
         scsi_qla_host_t *vha;
         struct scsi_qla_host *tvha;
+        unsigned long flags;
 
+        spin_lock_irqsave(&ha->vport_slock, flags);
         /* Locate matching device in database. */
         list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
-                if (!memcmp(port_name, vha->port_name, WWN_SIZE))
+                if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
+                        spin_unlock_irqrestore(&ha->vport_slock, flags);
                         return vha;
+                }
         }
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
         return NULL;
 }
 
@@ -93,6 +122,12 @@ qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
 static void
 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
 {
+        /*
+         * !!! NOTE !!!
+         * This function, if called in contexts other than vp create, disable
+         * or delete, please make sure this is synchronized with the
+         * delete thread.
+         */
         fc_port_t *fcport;
 
         list_for_each_entry(fcport, &vha->vp_fcports, list) {
@@ -100,7 +135,6 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
                     "loop_id=0x%04x :%x\n",
                     vha->host_no, fcport->loop_id, fcport->vp_idx));
 
-                atomic_set(&fcport->state, FCS_DEVICE_DEAD);
                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
                 atomic_set(&fcport->state, FCS_UNCONFIGURED);
         }
@@ -194,12 +228,17 @@ qla24xx_configure_vp(scsi_qla_host_t *vha)
 void
 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
 {
-        scsi_qla_host_t *vha, *tvha;
+        scsi_qla_host_t *vha;
         struct qla_hw_data *ha = rsp->hw;
         int i = 0;
+        unsigned long flags;
 
-        list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
+        spin_lock_irqsave(&ha->vport_slock, flags);
+        list_for_each_entry(vha, &ha->vp_list, list) {
                 if (vha->vp_idx) {
+                        atomic_inc(&vha->vref_count);
+                        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                         switch (mb[0]) {
                         case MBA_LIP_OCCURRED:
                         case MBA_LOOP_UP:
@@ -215,9 +254,13 @@ qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
                                 qla2x00_async_event(vha, rsp, mb);
                                 break;
                         }
+
+                        spin_lock_irqsave(&ha->vport_slock, flags);
+                        atomic_dec(&vha->vref_count);
                 }
                 i++;
         }
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
 }
 
 int
@@ -297,7 +340,7 @@ qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
         int ret;
         struct qla_hw_data *ha = vha->hw;
         scsi_qla_host_t *vp;
-        struct scsi_qla_host *tvp;
+        unsigned long flags = 0;
 
         if (vha->vp_idx)
                 return;
@@ -309,10 +352,19 @@ qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
         if (!(ha->current_topology & ISP_CFG_F))
                 return;
 
-        list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
-                if (vp->vp_idx)
+        spin_lock_irqsave(&ha->vport_slock, flags);
+        list_for_each_entry(vp, &ha->vp_list, list) {
+                if (vp->vp_idx) {
+                        atomic_inc(&vp->vref_count);
+                        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                         ret = qla2x00_do_dpc_vp(vp);
+
+                        spin_lock_irqsave(&ha->vport_slock, flags);
+                        atomic_dec(&vp->vref_count);
+                }
         }
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
 }
 
 int
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 915b77a6e193..0a71cc71eab2 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -2672,6 +2672,19 @@ qla82xx_start_scsi(srb_t *sp)
 sufficient_dsds:
                 req_cnt = 1;
 
+                if (req->cnt < (req_cnt + 2)) {
+                        cnt = (uint16_t)RD_REG_DWORD_RELAXED(
+                                &reg->req_q_out[0]);
+                        if (req->ring_index < cnt)
+                                req->cnt = cnt - req->ring_index;
+                        else
+                                req->cnt = req->length -
+                                        (req->ring_index - cnt);
+                }
+
+                if (req->cnt < (req_cnt + 2))
+                        goto queuing_error;
+
                 ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
                 if (!sp->ctx) {
                         DEBUG(printk(KERN_INFO
@@ -3307,16 +3320,19 @@ qla82xx_check_fw_alive(scsi_qla_host_t *vha)
                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
                         }
                         qla2xxx_wake_dpc(vha);
+                        ha->flags.fw_hung = 1;
                         if (ha->flags.mbox_busy) {
-                                ha->flags.fw_hung = 1;
                                 ha->flags.mbox_int = 1;
                                 DEBUG2(qla_printk(KERN_ERR, ha,
-                                    "Due to fw hung, doing premature "
-                                    "completion of mbx command\n"));
-                                complete(&ha->mbx_intr_comp);
+                                        "Due to fw hung, doing premature "
+                                        "completion of mbx command\n"));
+                                if (test_bit(MBX_INTR_WAIT,
+                                        &ha->mbx_cmd_flags))
+                                        complete(&ha->mbx_intr_comp);
                         }
                 }
-        }
+        } else
+                vha->seconds_since_last_heartbeat = 0;
         vha->fw_heartbeat_counter = fw_heartbeat_counter;
 }
 
@@ -3418,13 +3434,15 @@ void qla82xx_watchdog(scsi_qla_host_t *vha)
                                 "%s(): Adapter reset needed!\n", __func__);
                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
                         qla2xxx_wake_dpc(vha);
+                        ha->flags.fw_hung = 1;
                         if (ha->flags.mbox_busy) {
-                                ha->flags.fw_hung = 1;
                                 ha->flags.mbox_int = 1;
                                 DEBUG2(qla_printk(KERN_ERR, ha,
-                                    "Need reset, doing premature "
-                                    "completion of mbx command\n"));
-                                complete(&ha->mbx_intr_comp);
+                                        "Need reset, doing premature "
+                                        "completion of mbx command\n"));
+                                if (test_bit(MBX_INTR_WAIT,
+                                        &ha->mbx_cmd_flags))
+                                        complete(&ha->mbx_intr_comp);
                         }
                 } else {
                         qla82xx_check_fw_alive(vha);
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 8c80b49ac1c4..1e4bff695254 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2341,16 +2341,28 @@ probe_out:
 static void
 qla2x00_remove_one(struct pci_dev *pdev)
 {
-        scsi_qla_host_t *base_vha, *vha, *temp;
+        scsi_qla_host_t *base_vha, *vha;
         struct qla_hw_data  *ha;
+        unsigned long flags;
 
         base_vha = pci_get_drvdata(pdev);
         ha = base_vha->hw;
 
-        list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
-                if (vha && vha->fc_vport)
+        spin_lock_irqsave(&ha->vport_slock, flags);
+        list_for_each_entry(vha, &ha->vp_list, list) {
+                atomic_inc(&vha->vref_count);
+
+                if (vha && vha->fc_vport) {
+                        spin_unlock_irqrestore(&ha->vport_slock, flags);
+
                         fc_vport_terminate(vha->fc_vport);
+
+                        spin_lock_irqsave(&ha->vport_slock, flags);
+                }
+
+                atomic_dec(&vha->vref_count);
         }
+        spin_unlock_irqrestore(&ha->vport_slock, flags);
 
         set_bit(UNLOADING, &base_vha->dpc_flags);
 
@@ -2975,10 +2987,17 @@ static struct qla_work_evt *
 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
 {
         struct qla_work_evt *e;
+        uint8_t bail;
+
+        QLA_VHA_MARK_BUSY(vha, bail);
+        if (bail)
+                return NULL;
 
         e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
-        if (!e)
+        if (!e) {
+                QLA_VHA_MARK_NOT_BUSY(vha);
                 return NULL;
+        }
 
         INIT_LIST_HEAD(&e->list);
         e->type = type;
@@ -3135,6 +3154,9 @@ qla2x00_do_work(struct scsi_qla_host *vha)
                 }
                 if (e->flags & QLA_EVT_FLAG_FREE)
                         kfree(e);
+
+                /* For each work completed decrement vha ref count */
+                QLA_VHA_MARK_NOT_BUSY(vha);
         }
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index e75ccb91317d..8edbccb3232d 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,9 +7,9 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.03.03-k0"
+#define QLA2XXX_VERSION      "8.03.04-k0"
 
 #define QLA_DRIVER_MAJOR_VER    8
 #define QLA_DRIVER_MINOR_VER    3
-#define QLA_DRIVER_PATCH_VER    3
+#define QLA_DRIVER_PATCH_VER    4
 #define QLA_DRIVER_BETA_VER     0
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 9ade720422c6..ee02d3838a0a 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1011,8 +1011,8 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 
 err_exit:
         scsi_release_buffers(cmd);
-        scsi_put_command(cmd);
         cmd->request->special = NULL;
+        scsi_put_command(cmd);
         return error;
 }
 EXPORT_SYMBOL(scsi_init_io);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 2714becc2eaf..ffa0689ee840 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -870,7 +870,7 @@ static int sd_release(struct gendisk *disk, fmode_t mode)
 
         SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_release\n"));
 
-        if (atomic_dec_return(&sdkp->openers) && sdev->removable) {
+        if (atomic_dec_return(&sdkp->openers) == 0 && sdev->removable) {
                 if (scsi_block_when_processing_errors(sdev))
                         scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW);
         }
@@ -2625,15 +2625,15 @@ module_exit(exit_sd);
 static void sd_print_sense_hdr(struct scsi_disk *sdkp,
                                struct scsi_sense_hdr *sshdr)
 {
-        sd_printk(KERN_INFO, sdkp, "");
+        sd_printk(KERN_INFO, sdkp, " ");
         scsi_show_sense_hdr(sshdr);
-        sd_printk(KERN_INFO, sdkp, "");
+        sd_printk(KERN_INFO, sdkp, " ");
         scsi_show_extd_sense(sshdr->asc, sshdr->ascq);
 }
 
 static void sd_print_result(struct scsi_disk *sdkp, int result)
 {
-        sd_printk(KERN_INFO, sdkp, "");
+        sd_printk(KERN_INFO, sdkp, " ");
         scsi_show_result(result);
 }
 
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index a7bc8b7b09ac..2c3e89ddf069 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -72,10 +72,7 @@ static void sym_printl_hex(u_char *p, int n)
 
 static void sym_print_msg(struct sym_ccb *cp, char *label, u_char *msg)
 {
-        if (label)
-                sym_print_addr(cp->cmd, "%s: ", label);
-        else
-                sym_print_addr(cp->cmd, "");
+        sym_print_addr(cp->cmd, "%s: ", label);
 
         spi_print_msg(msg);
         printf("\n");
@@ -4558,7 +4555,8 @@ static void sym_int_sir(struct sym_hcb *np)
                         switch (np->msgin [2]) {
                         case M_X_MODIFY_DP:
                                 if (DEBUG_FLAGS & DEBUG_POINTER)
-                                        sym_print_msg(cp, NULL, np->msgin);
+                                        sym_print_msg(cp, "extended msg ",
+                                                      np->msgin);
                                 tmp = (np->msgin[3]<<24) + (np->msgin[4]<<16) + 
                                       (np->msgin[5]<<8)  + (np->msgin[6]);
                                 sym_modify_dp(np, tp, cp, tmp);
@@ -4585,7 +4583,7 @@ static void sym_int_sir(struct sym_hcb *np)
                  */
                 case M_IGN_RESIDUE:
                         if (DEBUG_FLAGS & DEBUG_POINTER)
-                                sym_print_msg(cp, NULL, np->msgin);
+                                sym_print_msg(cp, "1 or 2 byte ", np->msgin);
                         if (cp->host_flags & HF_SENSE)
                                 OUTL_DSP(np, SCRIPTA_BA(np, clrack));
                         else
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 50441ffe8e38..2904aa044126 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -472,14 +472,9 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
         spin_unlock_irqrestore(&uap->port.lock, flags);
 }
 
-static void pl010_set_ldisc(struct uart_port *port)
+static void pl010_set_ldisc(struct uart_port *port, int new)
 {
-        int line = port->line;
-
-        if (line >= port->state->port.tty->driver->num)
-                return;
-
-        if (port->state->port.tty->ldisc->ops->num == N_PPS) {
+        if (new == N_PPS) {
                 port->flags |= UPF_HARDPPS_CD;
                 pl010_enable_ms(port);
         } else
diff --git a/drivers/serial/bfin_sport_uart.c b/drivers/serial/bfin_sport_uart.c
index e57fb3d228e2..5318dd3774ae 100644
--- a/drivers/serial/bfin_sport_uart.c
+++ b/drivers/serial/bfin_sport_uart.c
@@ -121,7 +121,7 @@ static int sport_uart_setup(struct sport_uart_port *up, int size, int baud_rate)
         unsigned int sclk = get_sclk();
 
         /* Set TCR1 and TCR2, TFSR is not enabled for uart */
-        SPORT_PUT_TCR1(up, (ITFS | TLSBIT | ITCLK));
+        SPORT_PUT_TCR1(up, (LATFS | ITFS | TFSR | TLSBIT | ITCLK));
         SPORT_PUT_TCR2(up, size + 1);
         pr_debug("%s TCR1:%x, TCR2:%x\n", __func__, SPORT_GET_TCR1(up), SPORT_GET_TCR2(up));
 
diff --git a/drivers/serial/mfd.c b/drivers/serial/mfd.c
index bc9af503907f..324c385a653d 100644
--- a/drivers/serial/mfd.c
+++ b/drivers/serial/mfd.c
@@ -1423,7 +1423,6 @@ static void hsu_global_init(void)
         }
 
         phsu = hsu;
-
         hsu_debugfs_init(hsu);
         return;
 
@@ -1435,18 +1434,20 @@ err_free_region:
 
 static void serial_hsu_remove(struct pci_dev *pdev)
 {
-        struct hsu_port *hsu;
-        int i;
+        void *priv = pci_get_drvdata(pdev);
+        struct uart_hsu_port *up;
 
-        hsu = pci_get_drvdata(pdev);
-        if (!hsu)
+        if (!priv)
                 return;
 
-        for (i = 0; i < 3; i++)
-                uart_remove_one_port(&serial_hsu_reg, &hsu->port[i].port);
+        /* For port 0/1/2, priv is the address of uart_hsu_port */
+        if (pdev->device != 0x081E) {
+                up = priv;
+                uart_remove_one_port(&serial_hsu_reg, &up->port);
+        }
 
         pci_set_drvdata(pdev, NULL);
-        free_irq(hsu->irq, hsu);
+        free_irq(pdev->irq, priv);
         pci_disable_device(pdev);
 }
 
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 8dedb266f143..c4399e23565a 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -500,6 +500,7 @@ static int __init mpc512x_psc_fifoc_init(void)
         psc_fifoc = of_iomap(np, 0);
         if (!psc_fifoc) {
                 pr_err("%s: Can't map FIFOC\n", __func__);
+                of_node_put(np);
                 return -ENODEV;
         }
 
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index 141c69554bd4..7d475b2a79e8 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -335,8 +335,6 @@ static int serial_probe(struct pcmcia_device *link)
         info->p_dev = link;
         link->priv = info;
 
-        link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
-        link->resource[0]->end = 8;
         link->conf.Attributes = CONF_ENABLE_IRQ;
         if (do_sound) {
                 link->conf.Attributes |= CONF_ENABLE_SPKR;
@@ -411,6 +409,27 @@ static int setup_serial(struct pcmcia_device *handle, struct serial_info * info,
 
 /*====================================================================*/
 
+static int pfc_config(struct pcmcia_device *p_dev)
+{
+        unsigned int port = 0;
+        struct serial_info *info = p_dev->priv;
+
+        if ((p_dev->resource[1]->end != 0) &&
+                (resource_size(p_dev->resource[1]) == 8)) {
+                port = p_dev->resource[1]->start;
+                info->slave = 1;
+        } else if ((info->manfid == MANFID_OSITECH) &&
+                (resource_size(p_dev->resource[0]) == 0x40)) {
+                port = p_dev->resource[0]->start + 0x28;
+                info->slave = 1;
+        }
+        if (info->slave)
+                return setup_serial(p_dev, info, port, p_dev->irq);
+
+        dev_warn(&p_dev->dev, "no usable port range found, giving up\n");
+        return -ENODEV;
+}
+
 static int simple_config_check(struct pcmcia_device *p_dev,
                                cistpl_cftable_entry_t *cf,
                                cistpl_cftable_entry_t *dflt,
@@ -461,23 +480,8 @@ static int simple_config(struct pcmcia_device *link)
         struct serial_info *info = link->priv;
         int i = -ENODEV, try;
 
-        /* If the card is already configured, look up the port and irq */
-        if (link->function_config) {
-                unsigned int port = 0;
-                if ((link->resource[1]->end != 0) &&
-                        (resource_size(link->resource[1]) == 8)) {
-                        port = link->resource[1]->end;
-                        info->slave = 1;
-                } else if ((info->manfid == MANFID_OSITECH) &&
-                        (resource_size(link->resource[0]) == 0x40)) {
-                        port = link->resource[0]->start + 0x28;
-                        info->slave = 1;
-                }
-                if (info->slave) {
-                        return setup_serial(link, info, port,
-                                            link->irq);
-                }
-        }
+        link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+        link->resource[0]->end = 8;
 
         /* First pass: look for a config entry that looks normal.
          * Two tries: without IO aliases, then with aliases */
@@ -491,8 +495,7 @@ static int simple_config(struct pcmcia_device *link)
         if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
                 goto found_port;
 
-        printk(KERN_NOTICE
-               "serial_cs: no usable port range found, giving up\n");
+        dev_warn(&link->dev, "no usable port range found, giving up\n");
         return -1;
 
 found_port:
@@ -558,6 +561,7 @@ static int multi_config(struct pcmcia_device *link)
         int i, base2 = 0;
 
         /* First, look for a generic full-sized window */
+        link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
         link->resource[0]->end = info->multi * 8;
         if (pcmcia_loop_config(link, multi_config_check, &base2)) {
                 /* If that didn't work, look for two windows */
@@ -565,15 +569,14 @@ static int multi_config(struct pcmcia_device *link)
                 info->multi = 2;
                 if (pcmcia_loop_config(link, multi_config_check_notpicky,
                                        &base2)) {
-                        printk(KERN_NOTICE "serial_cs: no usable port range"
+                        dev_warn(&link->dev, "no usable port range "
                                "found, giving up\n");
                         return -ENODEV;
                 }
         }
 
         if (!link->irq)
-                dev_warn(&link->dev,
-                        "serial_cs: no usable IRQ found, continuing...\n");
+                dev_warn(&link->dev, "no usable IRQ found, continuing...\n");
 
         /*
          * Apply any configuration quirks.
@@ -675,6 +678,7 @@ static int serial_config(struct pcmcia_device * link)
            multifunction cards that ask for appropriate IO port ranges */
         if ((info->multi == 0) &&
             (link->has_func_id) &&
+            (link->socket->pcmcia_pfc == 0) &&
             ((link->func_id == CISTPL_FUNCID_MULTI) ||
              (link->func_id == CISTPL_FUNCID_SERIAL)))
                 pcmcia_loop_config(link, serial_check_for_multi, info);
@@ -685,7 +689,13 @@ static int serial_config(struct pcmcia_device * link)
         if (info->quirk && info->quirk->multi != -1)
                 info->multi = info->quirk->multi;
 
-        if (info->multi > 1)
+        dev_info(&link->dev,
+                "trying to set up [0x%04x:0x%04x] (pfc: %d, multi: %d, quirk: %p)\n",
+                link->manf_id, link->card_id,
+                link->socket->pcmcia_pfc, info->multi, info->quirk);
+        if (link->socket->pcmcia_pfc)
+                i = pfc_config(link);
+        else if (info->multi > 1)
                 i = multi_config(link);
         else
                 i = simple_config(link);
@@ -704,7 +714,7 @@ static int serial_config(struct pcmcia_device * link)
         return 0;
 
 failed:
-        dev_warn(&link->dev, "serial_cs: failed to initialize\n");
+        dev_warn(&link->dev, "failed to initialize\n");
         serial_remove(link);
         return -ENODEV;
 }
diff --git a/drivers/spi/amba-pl022.c b/drivers/spi/amba-pl022.c
index acd35d1ebd12..4c37c4e28647 100644
--- a/drivers/spi/amba-pl022.c
+++ b/drivers/spi/amba-pl022.c
@@ -503,8 +503,9 @@ static void giveback(struct pl022 *pl022)
         msg->state = NULL;
         if (msg->complete)
                 msg->complete(msg->context);
-        /* This message is completed, so let's turn off the clock! */
+        /* This message is completed, so let's turn off the clocks! */
         clk_disable(pl022->clk);
+        amba_pclk_disable(pl022->adev);
 }
 
 /**
@@ -1139,9 +1140,10 @@ static void pump_messages(struct work_struct *work)
         /* Setup the SPI using the per chip configuration */
         pl022->cur_chip = spi_get_ctldata(pl022->cur_msg->spi);
         /*
-         * We enable the clock here, then the clock will be disabled when
+         * We enable the clocks here, then the clocks will be disabled when
          * giveback() is called in each method (poll/interrupt/DMA)
          */
+        amba_pclk_enable(pl022->adev);
         clk_enable(pl022->clk);
         restore_state(pl022);
         flush(pl022);
@@ -1786,11 +1788,9 @@ pl022_probe(struct amba_device *adev, struct amba_id *id)
         }
 
         /* Disable SSP */
-        clk_enable(pl022->clk);
         writew((readw(SSP_CR1(pl022->virtbase)) & (~SSP_CR1_MASK_SSE)),
                SSP_CR1(pl022->virtbase));
         load_ssp_default_config(pl022);
-        clk_disable(pl022->clk);
 
         status = request_irq(adev->irq[0], pl022_interrupt_handler, 0, "pl022",
                              pl022);
@@ -1818,6 +1818,8 @@ pl022_probe(struct amba_device *adev, struct amba_id *id)
                 goto err_spi_register;
         }
         dev_dbg(dev, "probe succeded\n");
+        /* Disable the silicon block pclk and clock it when needed */
+        amba_pclk_disable(adev);
         return 0;
 
  err_spi_register:
@@ -1879,9 +1881,9 @@ static int pl022_suspend(struct amba_device *adev, pm_message_t state)
                 return status;
         }
 
-        clk_enable(pl022->clk);
+        amba_pclk_enable(adev);
         load_ssp_default_config(pl022);
-        clk_disable(pl022->clk);
+        amba_pclk_disable(adev);
         dev_dbg(&adev->dev, "suspended\n");
         return 0;
 }
@@ -1981,7 +1983,7 @@ static int __init pl022_init(void)
         return amba_driver_register(&pl022_driver);
 }
 
-module_init(pl022_init);
+subsys_initcall(pl022_init);
 
 static void __exit pl022_exit(void)
 {
diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c
index d256cb00604c..56247853c298 100644
--- a/drivers/spi/dw_spi.c
+++ b/drivers/spi/dw_spi.c
@@ -181,10 +181,6 @@ static void flush(struct dw_spi *dws)
         wait_till_not_busy(dws);
 }
 
-static void null_cs_control(u32 command)
-{
-}
-
 static int null_writer(struct dw_spi *dws)
 {
         u8 n_bytes = dws->n_bytes;
@@ -322,7 +318,7 @@ static void giveback(struct dw_spi *dws)
                                         struct spi_transfer,
                                         transfer_list);
 
-        if (!last_transfer->cs_change)
+        if (!last_transfer->cs_change && dws->cs_control)
                 dws->cs_control(MRST_SPI_DEASSERT);
 
         msg->state = NULL;
@@ -396,6 +392,11 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws)
 static irqreturn_t dw_spi_irq(int irq, void *dev_id)
 {
         struct dw_spi *dws = dev_id;
+        u16 irq_status, irq_mask = 0x3f;
+
+        irq_status = dw_readw(dws, isr) & irq_mask;
+        if (!irq_status)
+                return IRQ_NONE;
 
         if (!dws->cur_msg) {
                 spi_mask_intr(dws, SPI_INT_TXEI);
@@ -544,13 +545,13 @@ static void pump_transfers(unsigned long data)
          */
         if (dws->cs_control) {
                 if (dws->rx && dws->tx)
-                        chip->tmode = 0x00;
+                        chip->tmode = SPI_TMOD_TR;
                 else if (dws->rx)
-                        chip->tmode = 0x02;
+                        chip->tmode = SPI_TMOD_RO;
                 else
-                        chip->tmode = 0x01;
+                        chip->tmode = SPI_TMOD_TO;
 
-                cr0 &= ~(0x3 << SPI_MODE_OFFSET);
+                cr0 &= ~SPI_TMOD_MASK;
                 cr0 |= (chip->tmode << SPI_TMOD_OFFSET);
         }
 
@@ -699,9 +700,6 @@ static int dw_spi_setup(struct spi_device *spi)
                 chip = kzalloc(sizeof(struct chip_data), GFP_KERNEL);
                 if (!chip)
                         return -ENOMEM;
-
-                chip->cs_control = null_cs_control;
-                chip->enable_dma = 0;
         }
 
         /*
@@ -883,7 +881,7 @@ int __devinit dw_spi_add_host(struct dw_spi *dws)
         dws->dma_inited = 0;
         dws->dma_addr = (dma_addr_t)(dws->paddr + 0x60);
 
-        ret = request_irq(dws->irq, dw_spi_irq, 0,
+        ret = request_irq(dws->irq, dw_spi_irq, IRQF_SHARED,
                         "dw_spi", dws);
         if (ret < 0) {
                 dev_err(&master->dev, "can not get IRQ\n");
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index a9e5c79ae52a..0bcf4c1601a2 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -554,11 +554,9 @@ done:
 EXPORT_SYMBOL_GPL(spi_register_master);
 
 
-static int __unregister(struct device *dev, void *master_dev)
+static int __unregister(struct device *dev, void *null)
 {
-        /* note: before about 2.6.14-rc1 this would corrupt memory: */
-        if (dev != master_dev)
-                spi_unregister_device(to_spi_device(dev));
+        spi_unregister_device(to_spi_device(dev));
         return 0;
 }
 
@@ -576,8 +574,7 @@ void spi_unregister_master(struct spi_master *master)
 {
         int dummy;
 
-        dummy = device_for_each_child(master->dev.parent, &master->dev,
-                                        __unregister);
+        dummy = device_for_each_child(&master->dev, NULL, __unregister);
         device_unregister(&master->dev);
 }
 EXPORT_SYMBOL_GPL(spi_unregister_master);
diff --git a/drivers/spi/spi_s3c64xx.c b/drivers/spi/spi_s3c64xx.c
index 97365815a729..c3038da2648a 100644
--- a/drivers/spi/spi_s3c64xx.c
+++ b/drivers/spi/spi_s3c64xx.c
@@ -200,6 +200,9 @@ static void flush_fifo(struct s3c64xx_spi_driver_data *sdd)
                 val = readl(regs + S3C64XX_SPI_STATUS);
         } while (TX_FIFO_LVL(val, sci) && loops--);
 
+        if (loops == 0)
+                dev_warn(&sdd->pdev->dev, "Timed out flushing TX FIFO\n");
+
         /* Flush RxFIFO*/
         loops = msecs_to_loops(1);
         do {
@@ -210,6 +213,9 @@ static void flush_fifo(struct s3c64xx_spi_driver_data *sdd)
                         break;
         } while (loops--);
 
+        if (loops == 0)
+                dev_warn(&sdd->pdev->dev, "Timed out flushing RX FIFO\n");
+
         val = readl(regs + S3C64XX_SPI_CH_CFG);
         val &= ~S3C64XX_SPI_CH_SW_RST;
         writel(val, regs + S3C64XX_SPI_CH_CFG);
@@ -320,16 +326,17 @@ static int wait_for_xfer(struct s3c64xx_spi_driver_data *sdd,
 
         /* millisecs to xfer 'len' bytes @ 'cur_speed' */
         ms = xfer->len * 8 * 1000 / sdd->cur_speed;
-        ms += 5; /* some tolerance */
+        ms += 10; /* some tolerance */
 
         if (dma_mode) {
                 val = msecs_to_jiffies(ms) + 10;
                 val = wait_for_completion_timeout(&sdd->xfer_completion, val);
         } else {
+                u32 status;
                 val = msecs_to_loops(ms);
                 do {
-                        val = readl(regs + S3C64XX_SPI_STATUS);
-                } while (RX_FIFO_LVL(val, sci) < xfer->len && --val);
+                        status = readl(regs + S3C64XX_SPI_STATUS);
+                } while (RX_FIFO_LVL(status, sci) < xfer->len && --val);
         }
 
         if (!val)
@@ -447,8 +454,8 @@ static void s3c64xx_spi_config(struct s3c64xx_spi_driver_data *sdd)
         writel(val, regs + S3C64XX_SPI_CLK_CFG);
 }
 
-void s3c64xx_spi_dma_rxcb(struct s3c2410_dma_chan *chan, void *buf_id,
-                                int size, enum s3c2410_dma_buffresult res)
+static void s3c64xx_spi_dma_rxcb(struct s3c2410_dma_chan *chan, void *buf_id,
+                                 int size, enum s3c2410_dma_buffresult res)
 {
         struct s3c64xx_spi_driver_data *sdd = buf_id;
         unsigned long flags;
@@ -467,8 +474,8 @@ void s3c64xx_spi_dma_rxcb(struct s3c2410_dma_chan *chan, void *buf_id,
         spin_unlock_irqrestore(&sdd->lock, flags);
 }
 
-void s3c64xx_spi_dma_txcb(struct s3c2410_dma_chan *chan, void *buf_id,
-                                int size, enum s3c2410_dma_buffresult res)
+static void s3c64xx_spi_dma_txcb(struct s3c2410_dma_chan *chan, void *buf_id,
+                                 int size, enum s3c2410_dma_buffresult res)
 {
         struct s3c64xx_spi_driver_data *sdd = buf_id;
         unsigned long flags;
@@ -508,8 +515,9 @@ static int s3c64xx_spi_map_mssg(struct s3c64xx_spi_driver_data *sdd,
         list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 
                 if (xfer->tx_buf != NULL) {
-                        xfer->tx_dma = dma_map_single(dev, xfer->tx_buf,
-                                                xfer->len, DMA_TO_DEVICE);
+                        xfer->tx_dma = dma_map_single(dev,
+                                        (void *)xfer->tx_buf, xfer->len,
+                                        DMA_TO_DEVICE);
                         if (dma_mapping_error(dev, xfer->tx_dma)) {
                                 dev_err(dev, "dma_map_single Tx failed\n");
                                 xfer->tx_dma = XFER_DMAADDR_INVALID;
@@ -919,6 +927,13 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
+        sci = pdev->dev.platform_data;
+        if (!sci->src_clk_name) {
+                dev_err(&pdev->dev,
+                        "Board init must call s3c64xx_spi_set_info()\n");
+                return -EINVAL;
+        }
+
         /* Check for availability of necessary resource */
 
         dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
@@ -946,8 +961,6 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
 
-        sci = pdev->dev.platform_data;
-
         platform_set_drvdata(pdev, master);
 
         sdd = spi_master_get_devdata(master);
@@ -1170,7 +1183,7 @@ static int __init s3c64xx_spi_init(void)
 {
         return platform_driver_probe(&s3c64xx_spi_driver, s3c64xx_spi_probe);
 }
-module_init(s3c64xx_spi_init);
+subsys_initcall(s3c64xx_spi_init);
 
 static void __exit s3c64xx_spi_exit(void)
 {
diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c
index baa8b05b9e8d..6e973a79aa25 100644
--- a/drivers/staging/batman-adv/hard-interface.c
+++ b/drivers/staging/batman-adv/hard-interface.c
@@ -30,7 +30,6 @@
 #include "hash.h"
 
 #include <linux/if_arp.h>
-#include <linux/netfilter_bridge.h>
 
 #define MIN(x, y) ((x) < (y) ? (x) : (y))
 
@@ -431,11 +430,6 @@ out:
         return NOTIFY_DONE;
 }
 
-static int batman_skb_recv_finish(struct sk_buff *skb)
-{
-        return NF_ACCEPT;
-}
-
 /* receive a packet with the batman ethertype coming on a hard
  * interface */
 int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
@@ -456,13 +450,6 @@ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
         if (atomic_read(&module_state) != MODULE_ACTIVE)
                 goto err_free;
 
-        /* if netfilter/ebtables wants to block incoming batman
-         * packets then give them a chance to do so here */
-        ret = NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_IN, skb, dev, NULL,
-                      batman_skb_recv_finish);
-        if (ret != 1)
-                goto err_out;
-
         /* packet should hold at least type and version */
         if (unlikely(skb_headlen(skb) < 2))
                 goto err_free;
diff --git a/drivers/staging/batman-adv/send.c b/drivers/staging/batman-adv/send.c
index 055edee7b4e4..da3c82e47bbd 100644
--- a/drivers/staging/batman-adv/send.c
+++ b/drivers/staging/batman-adv/send.c
@@ -29,7 +29,6 @@
 #include "vis.h"
 #include "aggregation.h"
 
-#include <linux/netfilter_bridge.h>
 
 static void send_outstanding_bcast_packet(struct work_struct *work);
 
@@ -92,12 +91,9 @@ int send_skb_packet(struct sk_buff *skb,
 
         /* dev_queue_xmit() returns a negative result on error.  However on
          * congestion and traffic shaping, it drops and returns NET_XMIT_DROP
-         * (which is > 0). This will not be treated as an error.
-         * Also, if netfilter/ebtables wants to block outgoing batman
-         * packets then giving them a chance to do so here */
+         * (which is > 0). This will not be treated as an error. */
 
-        return NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
-                       dev_queue_xmit);
+        return dev_queue_xmit(skb);
 send_skb_err:
         kfree_skb(skb);
         return NET_XMIT_DROP;
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
index c6aa52f8dcee..48d9fb1227df 100644
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ b/drivers/staging/comedi/drivers/das08_cs.c
@@ -222,7 +222,6 @@ static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev,
                 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
                 p_dev->resource[0]->flags |=
                         pcmcia_io_cfg_data_width(io->flags);
-                p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
                 p_dev->resource[0]->start = io->win[0].base;
                 p_dev->resource[0]->end = io->win[0].len;
                 if (io->nwin > 1) {
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 56e11575c977..64a01147ecae 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -327,6 +327,9 @@ static const struct net_device_ops device_ops = {
         .ndo_stop =                     netvsc_close,
         .ndo_start_xmit =               netvsc_start_xmit,
         .ndo_set_multicast_list =       netvsc_set_multicast_list,
+        .ndo_change_mtu =               eth_change_mtu,
+        .ndo_validate_addr =            eth_validate_addr,
+        .ndo_set_mac_address =          eth_mac_addr,
 };
 
 static int netvsc_probe(struct device *device)
diff --git a/drivers/staging/hv/ring_buffer.c b/drivers/staging/hv/ring_buffer.c
index 17bc7626f70a..d78c569ac94a 100644
--- a/drivers/staging/hv/ring_buffer.c
+++ b/drivers/staging/hv/ring_buffer.c
@@ -193,8 +193,7 @@ Description:
 static inline u64
 GetRingBufferIndices(struct hv_ring_buffer_info *RingInfo)
 {
-        return ((u64)RingInfo->RingBuffer->WriteIndex << 32)
-        || RingInfo->RingBuffer->ReadIndex;
+        return (u64)RingInfo->RingBuffer->WriteIndex << 32;
 }
 
 
diff --git a/drivers/staging/hv/storvsc_api.h b/drivers/staging/hv/storvsc_api.h
index 0063bde9a4b2..8505a1c5f9ee 100644
--- a/drivers/staging/hv/storvsc_api.h
+++ b/drivers/staging/hv/storvsc_api.h
@@ -28,10 +28,10 @@
 #include "vmbus_api.h"
 
 /* Defines */
-#define STORVSC_RING_BUFFER_SIZE                        (10*PAGE_SIZE)
+#define STORVSC_RING_BUFFER_SIZE                        (20*PAGE_SIZE)
 #define BLKVSC_RING_BUFFER_SIZE                         (20*PAGE_SIZE)
 
-#define STORVSC_MAX_IO_REQUESTS                         64
+#define STORVSC_MAX_IO_REQUESTS                         128
 
 /*
  * In Hyper-V, each port/path/target maps to 1 scsi host adapter.  In
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index 075b61bd492f..62882a437aa4 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -495,7 +495,7 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl,
 
                 /* ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE); */
 
-                if (j == 0)
+                if (bounce_addr == 0)
                         bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
 
                 while (srclen) {
@@ -556,7 +556,7 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl,
                 destlen = orig_sgl[i].length;
                 /* ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE); */
 
-                if (j == 0)
+                if (bounce_addr == 0)
                         bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
 
                 while (destlen) {
@@ -615,6 +615,7 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
         unsigned int request_size = 0;
         int i;
         struct scatterlist *sgl;
+        unsigned int sg_count = 0;
 
         DPRINT_DBG(STORVSC_DRV, "scmnd %p dir %d, use_sg %d buf %p len %d "
                    "queue depth %d tagged %d", scmnd, scmnd->sc_data_direction,
@@ -697,6 +698,7 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
         request->DataBuffer.Length = scsi_bufflen(scmnd);
         if (scsi_sg_count(scmnd)) {
                 sgl = (struct scatterlist *)scsi_sglist(scmnd);
+                sg_count = scsi_sg_count(scmnd);
 
                 /* check if we need to bounce the sgl */
                 if (do_bounce_buffer(sgl, scsi_sg_count(scmnd)) != -1) {
@@ -731,15 +733,16 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
                                               scsi_sg_count(scmnd));
 
                         sgl = cmd_request->bounce_sgl;
+                        sg_count = cmd_request->bounce_sgl_count;
                 }
 
                 request->DataBuffer.Offset = sgl[0].offset;
 
-                for (i = 0; i < scsi_sg_count(scmnd); i++) {
+                for (i = 0; i < sg_count; i++) {
                         DPRINT_DBG(STORVSC_DRV, "sgl[%d] len %d offset %d\n",
                                    i, sgl[i].length, sgl[i].offset);
                         request->DataBuffer.PfnArray[i] =
-                                        page_to_pfn(sg_page((&sgl[i])));
+                                page_to_pfn(sg_page((&sgl[i])));
                 }
         } else if (scsi_sglist(scmnd)) {
                 /* ASSERT(scsi_bufflen(scmnd) <= PAGE_SIZE); */
diff --git a/drivers/staging/octeon/Kconfig b/drivers/staging/octeon/Kconfig
index 638ad6b35891..9493128e5fd2 100644
--- a/drivers/staging/octeon/Kconfig
+++ b/drivers/staging/octeon/Kconfig
@@ -1,6 +1,6 @@
 config OCTEON_ETHERNET
         tristate "Cavium Networks Octeon Ethernet support"
-        depends on CPU_CAVIUM_OCTEON
+        depends on CPU_CAVIUM_OCTEON && NETDEVICES
         select PHYLIB
         select MDIO_OCTEON
         help
diff --git a/drivers/staging/rt2860/usb_main_dev.c b/drivers/staging/rt2860/usb_main_dev.c
index a0fe31de0a6d..ebf9074a9083 100644
--- a/drivers/staging/rt2860/usb_main_dev.c
+++ b/drivers/staging/rt2860/usb_main_dev.c
@@ -44,6 +44,7 @@ struct usb_device_id rtusb_usb_id[] = {
         {USB_DEVICE(0x07B8, 0x2870)},   /* AboCom */
         {USB_DEVICE(0x07B8, 0x2770)},   /* AboCom */
         {USB_DEVICE(0x0DF6, 0x0039)},   /* Sitecom 2770 */
+        {USB_DEVICE(0x0DF6, 0x003F)},   /* Sitecom 2770 */
         {USB_DEVICE(0x083A, 0x7512)},   /* Arcadyan 2770 */
         {USB_DEVICE(0x0789, 0x0162)},   /* Logitec 2870 */
         {USB_DEVICE(0x0789, 0x0163)},   /* Logitec 2870 */
@@ -95,7 +96,8 @@ struct usb_device_id rtusb_usb_id[] = {
         {USB_DEVICE(0x050d, 0x815c)},
         {USB_DEVICE(0x1482, 0x3C09)},   /* Abocom */
         {USB_DEVICE(0x14B2, 0x3C09)},   /* Alpha */
-        {USB_DEVICE(0x04E8, 0x2018)},   /* samsung */
+        {USB_DEVICE(0x04E8, 0x2018)},   /* samsung linkstick2 */
+        {USB_DEVICE(0x1690, 0x0740)},   /* Askey */
         {USB_DEVICE(0x5A57, 0x0280)},   /* Zinwell */
         {USB_DEVICE(0x5A57, 0x0282)},   /* Zinwell */
         {USB_DEVICE(0x7392, 0x7718)},
@@ -105,21 +107,34 @@ struct usb_device_id rtusb_usb_id[] = {
         {USB_DEVICE(0x1737, 0x0071)},   /* Linksys WUSB600N */
         {USB_DEVICE(0x0411, 0x00e8)},   /* Buffalo WLI-UC-G300N */
         {USB_DEVICE(0x050d, 0x815c)},   /* Belkin F5D8053 */
+        {USB_DEVICE(0x100D, 0x9031)},   /* Motorola 2770 */
 #endif /* RT2870 // */
 #ifdef RT3070
         {USB_DEVICE(0x148F, 0x3070)},   /* Ralink 3070 */
         {USB_DEVICE(0x148F, 0x3071)},   /* Ralink 3071 */
         {USB_DEVICE(0x148F, 0x3072)},   /* Ralink 3072 */
         {USB_DEVICE(0x0DB0, 0x3820)},   /* Ralink 3070 */
+        {USB_DEVICE(0x0DB0, 0x871C)},   /* Ralink 3070 */
+        {USB_DEVICE(0x0DB0, 0x822C)},   /* Ralink 3070 */
+        {USB_DEVICE(0x0DB0, 0x871B)},   /* Ralink 3070 */
+        {USB_DEVICE(0x0DB0, 0x822B)},   /* Ralink 3070 */
         {USB_DEVICE(0x0DF6, 0x003E)},   /* Sitecom 3070 */
         {USB_DEVICE(0x0DF6, 0x0042)},   /* Sitecom 3072 */
+        {USB_DEVICE(0x0DF6, 0x0048)},   /* Sitecom 3070 */
+        {USB_DEVICE(0x0DF6, 0x0047)},   /* Sitecom 3071 */
         {USB_DEVICE(0x14B2, 0x3C12)},   /* AL 3070 */
         {USB_DEVICE(0x18C5, 0x0012)},   /* Corega 3070 */
         {USB_DEVICE(0x083A, 0x7511)},   /* Arcadyan 3070 */
+        {USB_DEVICE(0x083A, 0xA701)},   /* SMC 3070 */
+        {USB_DEVICE(0x083A, 0xA702)},   /* SMC 3072 */
         {USB_DEVICE(0x1740, 0x9703)},   /* EnGenius 3070 */
         {USB_DEVICE(0x1740, 0x9705)},   /* EnGenius 3071 */
         {USB_DEVICE(0x1740, 0x9706)},   /* EnGenius 3072 */
+        {USB_DEVICE(0x1740, 0x9707)},   /* EnGenius 3070 */
+        {USB_DEVICE(0x1740, 0x9708)},   /* EnGenius 3071 */
+        {USB_DEVICE(0x1740, 0x9709)},   /* EnGenius 3072 */
         {USB_DEVICE(0x13D3, 0x3273)},   /* AzureWave 3070 */
+        {USB_DEVICE(0x13D3, 0x3305)},   /* AzureWave 3070*/
         {USB_DEVICE(0x1044, 0x800D)},   /* Gigabyte GN-WB32L 3070 */
         {USB_DEVICE(0x2019, 0xAB25)},   /* Planex Communications, Inc. RT3070 */
         {USB_DEVICE(0x07B8, 0x3070)},   /* AboCom 3070 */
@@ -132,14 +147,36 @@ struct usb_device_id rtusb_usb_id[] = {
         {USB_DEVICE(0x07D1, 0x3C0D)},   /* D-Link 3070 */
         {USB_DEVICE(0x07D1, 0x3C0E)},   /* D-Link 3070 */
         {USB_DEVICE(0x07D1, 0x3C0F)},   /* D-Link 3070 */
+        {USB_DEVICE(0x07D1, 0x3C16)},   /* D-Link 3070 */
+        {USB_DEVICE(0x07D1, 0x3C17)},   /* D-Link 8070 */
         {USB_DEVICE(0x1D4D, 0x000C)},   /* Pegatron Corporation 3070 */
         {USB_DEVICE(0x1D4D, 0x000E)},   /* Pegatron Corporation 3070 */
         {USB_DEVICE(0x5A57, 0x5257)},   /* Zinwell 3070 */
         {USB_DEVICE(0x5A57, 0x0283)},   /* Zinwell 3072 */
         {USB_DEVICE(0x04BB, 0x0945)},   /* I-O DATA 3072 */
+        {USB_DEVICE(0x04BB, 0x0947)},   /* I-O DATA 3070 */
+        {USB_DEVICE(0x04BB, 0x0948)},   /* I-O DATA 3072 */
         {USB_DEVICE(0x203D, 0x1480)},   /* Encore 3070 */
+        {USB_DEVICE(0x20B8, 0x8888)},   /* PARA INDUSTRIAL 3070 */
+        {USB_DEVICE(0x0B05, 0x1784)},   /* Asus 3072 */
+        {USB_DEVICE(0x203D, 0x14A9)},   /* Encore 3070*/
+        {USB_DEVICE(0x0DB0, 0x899A)},   /* MSI 3070*/
+        {USB_DEVICE(0x0DB0, 0x3870)},   /* MSI 3070*/
+        {USB_DEVICE(0x0DB0, 0x870A)},   /* MSI 3070*/
+        {USB_DEVICE(0x0DB0, 0x6899)},   /* MSI 3070 */
+        {USB_DEVICE(0x0DB0, 0x3822)},   /* MSI 3070 */
+        {USB_DEVICE(0x0DB0, 0x3871)},   /* MSI 3070 */
+        {USB_DEVICE(0x0DB0, 0x871A)},   /* MSI 3070 */
+        {USB_DEVICE(0x0DB0, 0x822A)},   /* MSI 3070 */
+        {USB_DEVICE(0x0DB0, 0x3821)},   /* Ralink 3070 */
+        {USB_DEVICE(0x0DB0, 0x821A)},   /* Ralink 3070 */
+        {USB_DEVICE(0x083A, 0xA703)},   /* IO-MAGIC */
+        {USB_DEVICE(0x13D3, 0x3307)},   /* Azurewave */
+        {USB_DEVICE(0x13D3, 0x3321)},   /* Azurewave */
+        {USB_DEVICE(0x07FA, 0x7712)},   /* Edimax */
+        {USB_DEVICE(0x0789, 0x0166)},   /* Edimax */
+        {USB_DEVICE(0x148F, 0x2070)},   /* Edimax */
 #endif /* RT3070 // */
-        {USB_DEVICE(0x0DF6, 0x003F)},   /* Sitecom WL-608 */
         {USB_DEVICE(0x1737, 0x0077)},   /* Linksys WUSB54GC-EU v3 */
         {USB_DEVICE(0x2001, 0x3C09)},   /* D-Link */
         {USB_DEVICE(0x2001, 0x3C0A)},   /* D-Link 3072 */
diff --git a/drivers/staging/spectra/Kconfig b/drivers/staging/spectra/Kconfig
index 5e2ffefb60af..d231ae27299d 100644
--- a/drivers/staging/spectra/Kconfig
+++ b/drivers/staging/spectra/Kconfig
@@ -2,6 +2,7 @@
 menuconfig SPECTRA
         tristate "Denali Spectra Flash Translation Layer"
         depends on BLOCK
+        depends on X86_MRST
         default n
         ---help---
           Enable the FTL pseudo-filesystem used with the NAND Flash
diff --git a/drivers/staging/spectra/ffsport.c b/drivers/staging/spectra/ffsport.c
index 44a7fbe7eccd..fa21a0fd8e84 100644
--- a/drivers/staging/spectra/ffsport.c
+++ b/drivers/staging/spectra/ffsport.c
@@ -28,6 +28,7 @@
 #include <linux/log2.h>
 #include <linux/init.h>
 #include <linux/smp_lock.h>
+#include <linux/slab.h>
 
 /**** Helper functions used for Div, Remainder operation on u64 ****/
 
diff --git a/drivers/staging/ti-st/st.h b/drivers/staging/ti-st/st.h
index 9952579425b9..1b3060eb2921 100644
--- a/drivers/staging/ti-st/st.h
+++ b/drivers/staging/ti-st/st.h
@@ -80,5 +80,4 @@ struct st_proto_s {
 extern long st_register(struct st_proto_s *);
 extern long st_unregister(enum proto_type);
 
-extern struct platform_device *st_get_plat_device(void);
 #endif /* ST_H */
diff --git a/drivers/staging/ti-st/st_core.c b/drivers/staging/ti-st/st_core.c
index 063c9b1db1ab..b85d8bfdf600 100644
--- a/drivers/staging/ti-st/st_core.c
+++ b/drivers/staging/ti-st/st_core.c
@@ -38,7 +38,6 @@
 #include "st_ll.h"
 #include "st.h"
 
-#define VERBOSE
 /* strings to be used for rfkill entries and by
  * ST Core to be used for sysfs debug entry
  */
@@ -581,7 +580,7 @@ long st_register(struct st_proto_s *new_proto)
         long err = 0;
         unsigned long flags = 0;
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         pr_info("%s(%d) ", __func__, new_proto->type);
         if (st_gdata == NULL || new_proto == NULL || new_proto->recv == NULL
             || new_proto->reg_complete_cb == NULL) {
@@ -713,7 +712,7 @@ long st_unregister(enum proto_type type)
 
         pr_debug("%s: %d ", __func__, type);
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         if (type < ST_BT || type >= ST_MAX) {
                 pr_err(" protocol %d not supported", type);
                 return -EPROTONOSUPPORT;
@@ -767,7 +766,7 @@ long st_write(struct sk_buff *skb)
 #endif
         long len;
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         if (unlikely(skb == NULL || st_gdata == NULL
                 || st_gdata->tty == NULL)) {
                 pr_err("data/tty unavailable to perform write");
@@ -818,7 +817,7 @@ static int st_tty_open(struct tty_struct *tty)
         struct st_data_s *st_gdata;
         pr_info("%s ", __func__);
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         st_gdata->tty = tty;
         tty->disc_data = st_gdata;
 
diff --git a/drivers/staging/ti-st/st_core.h b/drivers/staging/ti-st/st_core.h
index e0c32d149f5f..8601320a679e 100644
--- a/drivers/staging/ti-st/st_core.h
+++ b/drivers/staging/ti-st/st_core.h
@@ -117,7 +117,7 @@ int st_core_init(struct st_data_s **);
 void st_core_exit(struct st_data_s *);
 
 /* ask for reference from KIM */
-void st_kim_ref(struct st_data_s **);
+void st_kim_ref(struct st_data_s **, int);
 
 #define GPS_STUB_TEST
 #ifdef GPS_STUB_TEST
diff --git a/drivers/staging/ti-st/st_kim.c b/drivers/staging/ti-st/st_kim.c
index b4a6c7fdc4e6..9e99463f76e8 100644
--- a/drivers/staging/ti-st/st_kim.c
+++ b/drivers/staging/ti-st/st_kim.c
@@ -72,11 +72,26 @@ const unsigned char *protocol_names[] = {
         PROTO_ENTRY(ST_GPS, "GPS"),
 };
 
+#define MAX_ST_DEVICES  3       /* Imagine 1 on each UART for now */
+struct platform_device *st_kim_devices[MAX_ST_DEVICES];
 
 /**********************************************************************/
 /* internal functions */
 
 /**
+ * st_get_plat_device -
+ *      function which returns the reference to the platform device
+ *      requested by id. As of now only 1 such device exists (id=0)
+ *      the context requesting for reference can get the id to be
+ *      requested by a. The protocol driver which is registering or
+ *      b. the tty device which is opened.
+ */
+static struct platform_device *st_get_plat_device(int id)
+{
+        return st_kim_devices[id];
+}
+
+/**
  * validate_firmware_response -
  *      function to return whether the firmware response was proper
  *      in case of error don't complete so that waiting for proper
@@ -353,7 +368,7 @@ void st_kim_chip_toggle(enum proto_type type, enum kim_gpio_state state)
         struct kim_data_s       *kim_gdata;
         pr_info(" %s ", __func__);
 
-        kim_pdev = st_get_plat_device();
+        kim_pdev = st_get_plat_device(0);
         kim_gdata = dev_get_drvdata(&kim_pdev->dev);
 
         if (kim_gdata->gpios[type] == -1) {
@@ -574,12 +589,12 @@ static int kim_toggle_radio(void *data, bool blocked)
  *      This would enable multiple such platform devices to exist
  *      on a given platform
  */
-void st_kim_ref(struct st_data_s **core_data)
+void st_kim_ref(struct st_data_s **core_data, int id)
 {
         struct platform_device  *pdev;
         struct kim_data_s       *kim_gdata;
         /* get kim_gdata reference from platform device */
-        pdev = st_get_plat_device();
+        pdev = st_get_plat_device(id);
         kim_gdata = dev_get_drvdata(&pdev->dev);
         *core_data = kim_gdata->core_data;
 }
@@ -623,6 +638,7 @@ static int kim_probe(struct platform_device *pdev)
         long *gpios = pdev->dev.platform_data;
         struct kim_data_s       *kim_gdata;
 
+        st_kim_devices[pdev->id] = pdev;
         kim_gdata = kzalloc(sizeof(struct kim_data_s), GFP_ATOMIC);
         if (!kim_gdata) {
                 pr_err("no mem to allocate");
diff --git a/drivers/staging/vt6655/wpactl.c b/drivers/staging/vt6655/wpactl.c
index 0142338bcafe..4bdb8362de82 100644
--- a/drivers/staging/vt6655/wpactl.c
+++ b/drivers/staging/vt6655/wpactl.c
@@ -766,9 +766,14 @@ static int wpa_set_associate(PSDevice pDevice,
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wpa_ie_len = %d\n", param->u.wpa_associate.wpa_ie_len);
 
 
-        if (param->u.wpa_associate.wpa_ie &&
-            copy_from_user(&abyWPAIE[0], param->u.wpa_associate.wpa_ie, param->u.wpa_associate.wpa_ie_len))
-            return -EINVAL;
+        if (param->u.wpa_associate.wpa_ie_len) {
+                if (!param->u.wpa_associate.wpa_ie)
+                        return -EINVAL;
+                if (param->u.wpa_associate.wpa_ie_len > sizeof(abyWPAIE))
+                        return -EINVAL;
+                if (copy_from_user(&abyWPAIE[0], param->u.wpa_associate.wpa_ie, param->u.wpa_associate.wpa_ie_len))
+                        return -EFAULT;
+        }
 
         if (param->u.wpa_associate.mode == 1)
             pMgmt->eConfigMode = WMAC_CONFIG_IBSS_STA;
diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
index 368c30a9d5ff..4af83d5318f2 100644
--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -219,6 +219,7 @@ int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
                 return -ENOENT;
         params.key_len = len;
         params.key = wlandev->wep_keys[key_index];
+        params.seq_len = 0;
 
         callback(cookie, &params);
 
@@ -735,6 +736,8 @@ struct wiphy *wlan_create_wiphy(struct device *dev, wlandevice_t *wlandev)
         priv->band.n_channels = ARRAY_SIZE(prism2_channels);
         priv->band.bitrates = priv->rates;
         priv->band.n_bitrates = ARRAY_SIZE(prism2_rates);
+        priv->band.band = IEEE80211_BAND_2GHZ;
+        priv->band.ht_cap.ht_supported = false;
         wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
 
         set_wiphy_dev(wiphy, dev);
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 77d4d715a789..722c840ac638 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -769,6 +769,7 @@ static int __init zram_init(void)
 free_devices:
         while (dev_id)
                 destroy_device(&devices[--dev_id]);
+        kfree(devices);
 unregister:
         unregister_blkdev(zram_major, "zram");
 out:
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 593fc5e2d2e6..5af23cc5ea9f 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -1127,6 +1127,7 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance,
 {
         struct cxacru_data *instance;
         struct usb_device *usb_dev = interface_to_usbdev(intf);
+        struct usb_host_endpoint *cmd_ep = usb_dev->ep_in[CXACRU_EP_CMD];
         int ret;
 
         /* instance init */
@@ -1171,15 +1172,34 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance,
                 goto fail;
         }
 
-        usb_fill_int_urb(instance->rcv_urb,
+        if (!cmd_ep) {
+                dbg("cxacru_bind: no command endpoint");
+                ret = -ENODEV;
+                goto fail;
+        }
+
+        if ((cmd_ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+                        == USB_ENDPOINT_XFER_INT) {
+                usb_fill_int_urb(instance->rcv_urb,
                         usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD),
                         instance->rcv_buf, PAGE_SIZE,
                         cxacru_blocking_completion, &instance->rcv_done, 1);
 
-        usb_fill_int_urb(instance->snd_urb,
+                usb_fill_int_urb(instance->snd_urb,
                         usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD),
                         instance->snd_buf, PAGE_SIZE,
                         cxacru_blocking_completion, &instance->snd_done, 4);
+        } else {
+                usb_fill_bulk_urb(instance->rcv_urb,
+                        usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD),
+                        instance->rcv_buf, PAGE_SIZE,
+                        cxacru_blocking_completion, &instance->rcv_done);
+
+                usb_fill_bulk_urb(instance->snd_urb,
+                        usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD),
+                        instance->snd_buf, PAGE_SIZE,
+                        cxacru_blocking_completion, &instance->snd_done);
+        }
 
         mutex_init(&instance->cm_serialize);
 
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 1833b3a71515..bc62fae0680f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -965,7 +965,8 @@ static int acm_probe(struct usb_interface *intf,
         }
 
         if (!buflen) {
-                if (intf->cur_altsetting->endpoint->extralen &&
+                if (intf->cur_altsetting->endpoint &&
+                                intf->cur_altsetting->endpoint->extralen &&
                                 intf->cur_altsetting->endpoint->extra) {
                         dev_dbg(&intf->dev,
                                 "Seeking extra descriptors on endpoint\n");
@@ -1481,6 +1482,11 @@ static int acm_reset_resume(struct usb_interface *intf)
                 USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, \
                 USB_CDC_ACM_PROTO_VENDOR)
 
+#define SAMSUNG_PCSUITE_ACM_INFO(x) \
+                USB_DEVICE_AND_INTERFACE_INFO(0x04e7, x, \
+                USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, \
+                USB_CDC_ACM_PROTO_VENDOR)
+
 /*
  * USB driver structure.
  */
@@ -1591,6 +1597,17 @@ static const struct usb_device_id acm_ids[] = {
         { NOKIA_PCSUITE_ACM_INFO(0x0108), }, /* Nokia 5320 XpressMusic 2G */
         { NOKIA_PCSUITE_ACM_INFO(0x01f5), }, /* Nokia N97, RM-505 */
         { NOKIA_PCSUITE_ACM_INFO(0x02e3), }, /* Nokia 5230, RM-588 */
+        { NOKIA_PCSUITE_ACM_INFO(0x0178), }, /* Nokia E63 */
+        { NOKIA_PCSUITE_ACM_INFO(0x010e), }, /* Nokia E75 */
+        { NOKIA_PCSUITE_ACM_INFO(0x02d9), }, /* Nokia 6760 Slide */
+        { NOKIA_PCSUITE_ACM_INFO(0x01d0), }, /* Nokia E52 */
+        { NOKIA_PCSUITE_ACM_INFO(0x0223), }, /* Nokia E72 */
+        { NOKIA_PCSUITE_ACM_INFO(0x0275), }, /* Nokia X6 */
+        { NOKIA_PCSUITE_ACM_INFO(0x026c), }, /* Nokia N97 Mini */
+        { NOKIA_PCSUITE_ACM_INFO(0x0154), }, /* Nokia 5800 XpressMusic */
+        { NOKIA_PCSUITE_ACM_INFO(0x04ce), }, /* Nokia E90 */
+        { NOKIA_PCSUITE_ACM_INFO(0x01d4), }, /* Nokia E55 */
+        { SAMSUNG_PCSUITE_ACM_INFO(0x6651), }, /* Samsung GTi8510 (INNOV8) */
 
         /* NOTE: non-Nokia COMM/ACM/0xff is likely MSFT RNDIS... NOT a modem! */
 
@@ -1599,6 +1616,10 @@ static const struct usb_device_id acm_ids[] = {
         .driver_info = NOT_A_MODEM,
         },
 
+        /* control interfaces without any protocol set */
+        { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
+                USB_CDC_PROTO_NONE) },
+
         /* control interfaces with various AT-command sets */
         { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
                 USB_CDC_ACM_PROTO_AT_V25TER) },
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 7e594449600e..9eed5b52d9de 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -91,12 +91,12 @@ config USB_DYNAMIC_MINORS
           If you are unsure about this, say N here.
 
 config USB_SUSPEND
-        bool "USB runtime power management (suspend/resume and wakeup)"
+        bool "USB runtime power management (autosuspend) and wakeup"
         depends on USB && PM_RUNTIME
         help
           If you say Y here, you can use driver calls or the sysfs
-          "power/level" file to suspend or resume individual USB
-          peripherals and to enable or disable autosuspend (see
+          "power/control" file to enable or disable autosuspend for
+          individual USB peripherals (see
           Documentation/usb/power-management.txt for more details).
 
           Also, USB "remote wakeup" signaling is supported, whereby some
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index f06f5dbc8cdc..1e6ccef2cf0c 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -159,9 +159,9 @@ void usb_major_cleanup(void)
 int usb_register_dev(struct usb_interface *intf,
                      struct usb_class_driver *class_driver)
 {
-        int retval = -EINVAL;
+        int retval;
         int minor_base = class_driver->minor_base;
-        int minor = 0;
+        int minor;
         char name[20];
         char *temp;
 
@@ -173,12 +173,17 @@ int usb_register_dev(struct usb_interface *intf,
          */
         minor_base = 0;
 #endif
-        intf->minor = -1;
-
-        dbg ("looking for a minor, starting at %d", minor_base);
 
         if (class_driver->fops == NULL)
-                goto exit;
+                return -EINVAL;
+        if (intf->minor >= 0)
+                return -EADDRINUSE;
+
+        retval = init_usb_class();
+        if (retval)
+                return retval;
+
+        dev_dbg(&intf->dev, "looking for a minor, starting at %d", minor_base);
 
         down_write(&minor_rwsem);
         for (minor = minor_base; minor < MAX_USB_MINORS; ++minor) {
@@ -186,20 +191,12 @@ int usb_register_dev(struct usb_interface *intf,
                         continue;
 
                 usb_minors[minor] = class_driver->fops;
-
-                retval = 0;
+                intf->minor = minor;
                 break;
         }
         up_write(&minor_rwsem);
-
-        if (retval)
-                goto exit;
-
-        retval = init_usb_class();
-        if (retval)
-                goto exit;
-
-        intf->minor = minor;
+        if (intf->minor < 0)
+                return -EXFULL;
 
         /* create a usb class device for this usb interface */
         snprintf(name, sizeof(name), class_driver->name, minor - minor_base);
@@ -213,11 +210,11 @@ int usb_register_dev(struct usb_interface *intf,
                                       "%s", temp);
         if (IS_ERR(intf->usb_dev)) {
                 down_write(&minor_rwsem);
-                usb_minors[intf->minor] = NULL;
+                usb_minors[minor] = NULL;
+                intf->minor = -1;
                 up_write(&minor_rwsem);
                 retval = PTR_ERR(intf->usb_dev);
         }
-exit:
         return retval;
 }
 EXPORT_SYMBOL_GPL(usb_register_dev);
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index fd4c36ea5e46..9f0ce7de0e36 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1724,6 +1724,15 @@ free_interfaces:
         if (ret)
                 goto free_interfaces;
 
+        /* if it's already configured, clear out old state first.
+         * getting rid of old interfaces means unbinding their drivers.
+         */
+        if (dev->state != USB_STATE_ADDRESS)
+                usb_disable_device(dev, 1);     /* Skip ep0 */
+
+        /* Get rid of pending async Set-Config requests for this device */
+        cancel_async_set_config(dev);
+
         /* Make sure we have bandwidth (and available HCD resources) for this
          * configuration.  Remove endpoints from the schedule if we're dropping
          * this configuration to set configuration 0.  After this point, the
@@ -1733,20 +1742,11 @@ free_interfaces:
         mutex_lock(&hcd->bandwidth_mutex);
         ret = usb_hcd_alloc_bandwidth(dev, cp, NULL, NULL);
         if (ret < 0) {
-                usb_autosuspend_device(dev);
                 mutex_unlock(&hcd->bandwidth_mutex);
+                usb_autosuspend_device(dev);
                 goto free_interfaces;
         }
 
-        /* if it's already configured, clear out old state first.
-         * getting rid of old interfaces means unbinding their drivers.
-         */
-        if (dev->state != USB_STATE_ADDRESS)
-                usb_disable_device(dev, 1);     /* Skip ep0 */
-
-        /* Get rid of pending async Set-Config requests for this device */
-        cancel_async_set_config(dev);
-
         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
                               USB_REQ_SET_CONFIGURATION, 0, configuration, 0,
                               NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -1761,8 +1761,8 @@ free_interfaces:
         if (!cp) {
                 usb_set_device_state(dev, USB_STATE_ADDRESS);
                 usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL);
-                usb_autosuspend_device(dev);
                 mutex_unlock(&hcd->bandwidth_mutex);
+                usb_autosuspend_device(dev);
                 goto free_interfaces;
         }
         mutex_unlock(&hcd->bandwidth_mutex);
@@ -1802,6 +1802,7 @@ free_interfaces:
                 intf->dev.groups = usb_interface_groups;
                 intf->dev.dma_mask = dev->dev.dma_mask;
                 INIT_WORK(&intf->reset_ws, __usb_queue_reset_device);
+                intf->minor = -1;
                 device_initialize(&intf->dev);
                 dev_set_name(&intf->dev, "%d-%s:%d.%d",
                         dev->bus->busnum, dev->devpath,
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index 020fa5a25fda..972d5ddd1e18 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -293,9 +293,13 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
         /* mandatory */
         case OID_GEN_VENDOR_DESCRIPTION:
                 pr_debug("%s: OID_GEN_VENDOR_DESCRIPTION\n", __func__);
-                length = strlen (rndis_per_dev_params [configNr].vendorDescr);
-                memcpy (outbuf,
-                        rndis_per_dev_params [configNr].vendorDescr, length);
+                if ( rndis_per_dev_params [configNr].vendorDescr ) {
+                        length = strlen (rndis_per_dev_params [configNr].vendorDescr);
+                        memcpy (outbuf,
+                                rndis_per_dev_params [configNr].vendorDescr, length);
+                } else {
+                        outbuf[0] = 0;
+                }
                 retval = 0;
                 break;
 
@@ -1148,7 +1152,7 @@ static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
 #endif  /* CONFIG_USB_GADGET_DEBUG_FILES */
 
 
-int __init rndis_init (void)
+int rndis_init(void)
 {
         u8 i;
 
diff --git a/drivers/usb/gadget/rndis.h b/drivers/usb/gadget/rndis.h
index c236aaa9dcd1..907c33008118 100644
--- a/drivers/usb/gadget/rndis.h
+++ b/drivers/usb/gadget/rndis.h
@@ -262,7 +262,7 @@ int  rndis_signal_disconnect (int configNr);
 int  rndis_state (int configNr);
 extern void rndis_set_host_mac (int configNr, const u8 *addr);
 
-int __devinit rndis_init (void);
+int rndis_init(void);
 void rndis_exit (void);
 
 #endif  /* _LINUX_RNDIS_H */
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 521ebed0118d..a229744a8c7d 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -12,8 +12,6 @@
  * published by the Free Software Foundation.
 */
 
-#define DEBUG
-
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 58b72d741d93..a1e8d273103f 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -119,6 +119,11 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
                         ehci->broken_periodic = 1;
                         ehci_info(ehci, "using broken periodic workaround\n");
                 }
+                if (pdev->device == 0x0806 || pdev->device == 0x0811
+                                || pdev->device == 0x0829) {
+                        ehci_info(ehci, "disable lpm for langwell/penwell\n");
+                        ehci->has_lpm = 0;
+                }
                 break;
         case PCI_VENDOR_ID_TDI:
                 if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 335ee699fd85..ba52be473027 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -192,17 +192,19 @@ ehci_hcd_ppc_of_probe(struct platform_device *op, const struct of_device_id *mat
         }
 
         rv = usb_add_hcd(hcd, irq, 0);
-        if (rv == 0)
-                return 0;
+        if (rv)
+                goto err_ehci;
+
+        return 0;
 
+err_ehci:
+        if (ehci->has_amcc_usb23)
+                iounmap(ehci->ohci_hcctrl_reg);
         iounmap(hcd->regs);
 err_ioremap:
         irq_dispose_mapping(irq);
 err_irq:
         release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-
-        if (ehci->has_amcc_usb23)
-                iounmap(ehci->ohci_hcctrl_reg);
 err_rmr:
         usb_put_hcd(hcd);
 
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 59dc3d351b60..5ab5bb89bae3 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -322,6 +322,7 @@ cppi_channel_allocate(struct dma_controller *c,
                                 index, transmit ? 'T' : 'R', cppi_ch);
         cppi_ch->hw_ep = ep;
         cppi_ch->channel.status = MUSB_DMA_STATUS_FREE;
+        cppi_ch->channel.max_len = 0x7fffffff;
 
         DBG(4, "Allocate CPPI%d %cX\n", index, transmit ? 'T' : 'R');
         return &cppi_ch->channel;
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index c79a5e30d437..9e8639d4e862 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -195,15 +195,14 @@ static const struct file_operations musb_regdump_fops = {
 
 static int musb_test_mode_open(struct inode *inode, struct file *file)
 {
-        file->private_data = inode->i_private;
-
         return single_open(file, musb_test_mode_show, inode->i_private);
 }
 
 static ssize_t musb_test_mode_write(struct file *file,
                 const char __user *ubuf, size_t count, loff_t *ppos)
 {
-        struct musb             *musb = file->private_data;
+        struct seq_file         *s = file->private_data;
+        struct musb             *musb = s->private;
         u8                      test = 0;
         char                    buf[18];
 
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 6fca870e957e..d065e23f123e 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -300,6 +300,11 @@ static void txstate(struct musb *musb, struct musb_request *req)
 #ifndef CONFIG_MUSB_PIO_ONLY
         if (is_dma_capable() && musb_ep->dma) {
                 struct dma_controller   *c = musb->dma_controller;
+                size_t request_size;
+
+                /* setup DMA, then program endpoint CSR */
+                request_size = min_t(size_t, request->length - request->actual,
+                                        musb_ep->dma->max_len);
 
                 use_dma = (request->dma != DMA_ADDR_INVALID);
 
@@ -307,11 +312,6 @@ static void txstate(struct musb *musb, struct musb_request *req)
 
 #ifdef CONFIG_USB_INVENTRA_DMA
                 {
-                        size_t request_size;
-
-                        /* setup DMA, then program endpoint CSR */
-                        request_size = min_t(size_t, request->length,
-                                                musb_ep->dma->max_len);
                         if (request_size < musb_ep->packet_sz)
                                 musb_ep->dma->desired_mode = 0;
                         else
@@ -373,8 +373,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
                 use_dma = use_dma && c->channel_program(
                                 musb_ep->dma, musb_ep->packet_sz,
                                 0,
-                                request->dma,
-                                request->length);
+                                request->dma + request->actual,
+                                request_size);
                 if (!use_dma) {
                         c->channel_release(musb_ep->dma);
                         musb_ep->dma = NULL;
@@ -386,8 +386,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
                 use_dma = use_dma && c->channel_program(
                                 musb_ep->dma, musb_ep->packet_sz,
                                 request->zero,
-                                request->dma,
-                                request->length);
+                                request->dma + request->actual,
+                                request_size);
 #endif
         }
 #endif
@@ -501,26 +501,14 @@ void musb_g_tx(struct musb *musb, u8 epnum)
                                 request->zero = 0;
                         }
 
-                        /* ... or if not, then complete it. */
-                        musb_g_giveback(musb_ep, request, 0);
-
-                        /*
-                         * Kickstart next transfer if appropriate;
-                         * the packet that just completed might not
-                         * be transmitted for hours or days.
-                         * REVISIT for double buffering...
-                         * FIXME revisit for stalls too...
-                         */
-                        musb_ep_select(mbase, epnum);
-                        csr = musb_readw(epio, MUSB_TXCSR);
-                        if (csr & MUSB_TXCSR_FIFONOTEMPTY)
-                                return;
-
-                        request = musb_ep->desc ? next_request(musb_ep) : NULL;
-                        if (!request) {
-                                DBG(4, "%s idle now\n",
-                                        musb_ep->end_point.name);
-                                return;
+                        if (request->actual == request->length) {
+                                musb_g_giveback(musb_ep, request, 0);
+                                request = musb_ep->desc ? next_request(musb_ep) : NULL;
+                                if (!request) {
+                                        DBG(4, "%s idle now\n",
+                                                musb_ep->end_point.name);
+                                        return;
+                                }
                         }
                 }
 
@@ -568,11 +556,19 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 {
         const u8                epnum = req->epnum;
         struct usb_request      *request = &req->request;
-        struct musb_ep          *musb_ep = &musb->endpoints[epnum].ep_out;
+        struct musb_ep          *musb_ep;
         void __iomem            *epio = musb->endpoints[epnum].regs;
         unsigned                fifo_count = 0;
-        u16                     len = musb_ep->packet_sz;
+        u16                     len;
         u16                     csr = musb_readw(epio, MUSB_RXCSR);
+        struct musb_hw_ep       *hw_ep = &musb->endpoints[epnum];
+
+        if (hw_ep->is_shared_fifo)
+                musb_ep = &hw_ep->ep_in;
+        else
+                musb_ep = &hw_ep->ep_out;
+
+        len = musb_ep->packet_sz;
 
         /* We shouldn't get here while DMA is active, but we do... */
         if (dma_channel_status(musb_ep->dma) == MUSB_DMA_STATUS_BUSY) {
@@ -647,8 +643,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
          */
 
                                 csr |= MUSB_RXCSR_DMAENAB;
-#ifdef USE_MODE1
                                 csr |= MUSB_RXCSR_AUTOCLEAR;
+#ifdef USE_MODE1
                                 /* csr |= MUSB_RXCSR_DMAMODE; */
 
                                 /* this special sequence (enabling and then
@@ -663,10 +659,11 @@ static void rxstate(struct musb *musb, struct musb_request *req)
                                 if (request->actual < request->length) {
                                         int transfer_size = 0;
 #ifdef USE_MODE1
-                                        transfer_size = min(request->length,
+                                        transfer_size = min(request->length - request->actual,
                                                         channel->max_len);
 #else
-                                        transfer_size = len;
+                                        transfer_size = min(request->length - request->actual,
+                                                        (unsigned)len);
 #endif
                                         if (transfer_size <= musb_ep->packet_sz)
                                                 musb_ep->dma->desired_mode = 0;
@@ -740,9 +737,15 @@ void musb_g_rx(struct musb *musb, u8 epnum)
         u16                     csr;
         struct usb_request      *request;
         void __iomem            *mbase = musb->mregs;
-        struct musb_ep          *musb_ep = &musb->endpoints[epnum].ep_out;
+        struct musb_ep          *musb_ep;
         void __iomem            *epio = musb->endpoints[epnum].regs;
         struct dma_channel      *dma;
+        struct musb_hw_ep       *hw_ep = &musb->endpoints[epnum];
+
+        if (hw_ep->is_shared_fifo)
+                musb_ep = &hw_ep->ep_in;
+        else
+                musb_ep = &hw_ep->ep_out;
 
         musb_ep_select(mbase, epnum);
 
@@ -1081,7 +1084,7 @@ struct free_record {
 /*
  * Context: controller locked, IRQs blocked.
  */
-static void musb_ep_restart(struct musb *musb, struct musb_request *req)
+void musb_ep_restart(struct musb *musb, struct musb_request *req)
 {
         DBG(3, "<== %s request %p len %u on hw_ep%d\n",
                 req->tx ? "TX/IN" : "RX/OUT",
diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h
index c8b140325d82..572b1da7f2dc 100644
--- a/drivers/usb/musb/musb_gadget.h
+++ b/drivers/usb/musb/musb_gadget.h
@@ -105,4 +105,6 @@ extern void musb_gadget_cleanup(struct musb *);
 
 extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int);
 
+extern void musb_ep_restart(struct musb *, struct musb_request *);
+
 #endif          /* __MUSB_GADGET_H */
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 59bef8f3a358..6dd03f4c5f49 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -261,6 +261,7 @@ __acquires(musb->lock)
                                         ctrlrequest->wIndex & 0x0f;
                                 struct musb_ep          *musb_ep;
                                 struct musb_hw_ep       *ep;
+                                struct musb_request     *request;
                                 void __iomem            *regs;
                                 int                     is_in;
                                 u16                     csr;
@@ -302,6 +303,14 @@ __acquires(musb->lock)
                                         musb_writew(regs, MUSB_RXCSR, csr);
                                 }
 
+                                /* Maybe start the first request in the queue */
+                                request = to_musb_request(
+                                                next_request(musb_ep));
+                                if (!musb_ep->busy && request) {
+                                        DBG(3, "restarting the request\n");
+                                        musb_ep_restart(musb, request);
+                                }
+
                                 /* select ep0 again */
                                 musb_ep_select(mbase, 0);
                                 } break;
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 877d20b1dff9..9e65c47cc98b 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -660,6 +660,12 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
 
         qh->segsize = length;
 
+        /*
+         * Ensure the data reaches to main memory before starting
+         * DMA transfer
+         */
+        wmb();
+
         if (!dma->channel_program(channel, pkt_size, mode,
                         urb->transfer_dma + offset, length)) {
                 dma->channel_release(channel);
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 05aaac1c3861..0bc97698af15 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -347,11 +347,20 @@ static void twl4030_i2c_access(struct twl4030_usb *twl, int on)
         }
 }
 
-static void twl4030_phy_power(struct twl4030_usb *twl, int on)
+static void __twl4030_phy_power(struct twl4030_usb *twl, int on)
 {
-        u8 pwr;
+        u8 pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
+
+        if (on)
+                pwr &= ~PHY_PWR_PHYPWD;
+        else
+                pwr |= PHY_PWR_PHYPWD;
 
-        pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
+        WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
+}
+
+static void twl4030_phy_power(struct twl4030_usb *twl, int on)
+{
         if (on) {
                 regulator_enable(twl->usb3v1);
                 regulator_enable(twl->usb1v8);
@@ -365,15 +374,13 @@ static void twl4030_phy_power(struct twl4030_usb *twl, int on)
                 twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0,
                                                         VUSB_DEDICATED2);
                 regulator_enable(twl->usb1v5);
-                pwr &= ~PHY_PWR_PHYPWD;
-                WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
+                __twl4030_phy_power(twl, 1);
                 twl4030_usb_write(twl, PHY_CLK_CTRL,
                                   twl4030_usb_read(twl, PHY_CLK_CTRL) |
                                         (PHY_CLK_CTRL_CLOCKGATING_EN |
                                                 PHY_CLK_CTRL_CLK32K_EN));
-        } else  {
-                pwr |= PHY_PWR_PHYPWD;
-                WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
+        } else {
+                __twl4030_phy_power(twl, 0);
                 regulator_disable(twl->usb1v5);
                 regulator_disable(twl->usb1v8);
                 regulator_disable(twl->usb3v1);
@@ -387,19 +394,25 @@ static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off)
 
         twl4030_phy_power(twl, 0);
         twl->asleep = 1;
+        dev_dbg(twl->dev, "%s\n", __func__);
 }
 
-static void twl4030_phy_resume(struct twl4030_usb *twl)
+static void __twl4030_phy_resume(struct twl4030_usb *twl)
 {
-        if (!twl->asleep)
-                return;
-
         twl4030_phy_power(twl, 1);
         twl4030_i2c_access(twl, 1);
         twl4030_usb_set_mode(twl, twl->usb_mode);
         if (twl->usb_mode == T2_USB_MODE_ULPI)
                 twl4030_i2c_access(twl, 0);
+}
+
+static void twl4030_phy_resume(struct twl4030_usb *twl)
+{
+        if (!twl->asleep)
+                return;
+        __twl4030_phy_resume(twl);
         twl->asleep = 0;
+        dev_dbg(twl->dev, "%s\n", __func__);
 }
 
 static int twl4030_usb_ldo_init(struct twl4030_usb *twl)
@@ -408,8 +421,8 @@ static int twl4030_usb_ldo_init(struct twl4030_usb *twl)
         twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0xC0, PROTECT_KEY);
         twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0x0C, PROTECT_KEY);
 
-        /* put VUSB3V1 LDO in active state */
-        twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);
+        /* Keep VUSB3V1 LDO in sleep state until VBUS/ID change detected*/
+        /*twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);*/
 
         /* input to VUSB3V1 LDO is from VBAT, not VBUS */
         twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x14, VUSB_DEDICATED1);
@@ -502,6 +515,26 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
         return IRQ_HANDLED;
 }
 
+static void twl4030_usb_phy_init(struct twl4030_usb *twl)
+{
+        int status;
+
+        status = twl4030_usb_linkstat(twl);
+        if (status >= 0) {
+                if (status == USB_EVENT_NONE) {
+                        __twl4030_phy_power(twl, 0);
+                        twl->asleep = 1;
+                } else {
+                        __twl4030_phy_resume(twl);
+                        twl->asleep = 0;
+                }
+
+                blocking_notifier_call_chain(&twl->otg.notifier, status,
+                                twl->otg.gadget);
+        }
+        sysfs_notify(&twl->dev->kobj, NULL, "vbus");
+}
+
 static int twl4030_set_suspend(struct otg_transceiver *x, int suspend)
 {
         struct twl4030_usb *twl = xceiv_to_twl(x);
@@ -550,7 +583,6 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
         struct twl4030_usb_data *pdata = pdev->dev.platform_data;
         struct twl4030_usb      *twl;
         int                     status, err;
-        u8                      pwr;
 
         if (!pdata) {
                 dev_dbg(&pdev->dev, "platform_data not available\n");
@@ -569,10 +601,7 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
         twl->otg.set_peripheral = twl4030_set_peripheral;
         twl->otg.set_suspend    = twl4030_set_suspend;
         twl->usb_mode           = pdata->usb_mode;
-
-        pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
-
-        twl->asleep             = (pwr & PHY_PWR_PHYPWD);
+        twl->asleep = 1;
 
         /* init spinlock for workqueue */
         spin_lock_init(&twl->lock);
@@ -610,15 +639,10 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
                 return status;
         }
 
-        /* The IRQ handler just handles changes from the previous states
-         * of the ID and VBUS pins ... in probe() we must initialize that
-         * previous state.  The easy way:  fake an IRQ.
-         *
-         * REVISIT:  a real IRQ might have happened already, if PREEMPT is
-         * enabled.  Else the IRQ may not yet be configured or enabled,
-         * because of scheduling delays.
+        /* Power down phy or make it work according to
+         * current link state.
          */
-        twl4030_usb_irq(twl->irq, twl);
+        twl4030_usb_phy_init(twl);
 
         dev_info(&pdev->dev, "Initialized TWL4030 USB module\n");
         return 0;
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 80bf8333bb03..4f1744c5871f 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -56,6 +56,7 @@ static int debug;
 static const struct usb_device_id id_table[] = {
         { USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
         { USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
+        { USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
         { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */
         { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
         { USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
@@ -88,6 +89,7 @@ static const struct usb_device_id id_table[] = {
         { USB_DEVICE(0x10C4, 0x8149) }, /* West Mountain Radio Computerized Battery Analyzer */
         { USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */
         { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */
+        { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */
         { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
         { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
         { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
@@ -109,6 +111,7 @@ static const struct usb_device_id id_table[] = {
         { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */
         { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
         { USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
+        { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
         { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
         { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
         { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
@@ -122,14 +125,14 @@ static const struct usb_device_id id_table[] = {
         { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
         { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
         { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
-        { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
-        { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
-        { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
-        { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
         { USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */
         { USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */
         { USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */
         { USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */
+        { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
+        { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
+        { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+        { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
         { } /* Terminating Entry */
 };
 
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c792c96f590e..97cc87d654ce 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -753,6 +753,14 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) },
         { USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID),
                 .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) },
         { },                                    /* Optional parameter entry */
         { }                                     /* Terminating entry */
 };
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 2e95857c9633..15a4583775ad 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -135,6 +135,18 @@
 #define FTDI_NDI_AURORA_SCU_PID         0xDA74  /* NDI Aurora SCU */
 
 /*
+ * ChamSys Limited (www.chamsys.co.uk) USB wing/interface product IDs
+ */
+#define FTDI_CHAMSYS_24_MASTER_WING_PID        0xDAF8
+#define FTDI_CHAMSYS_PC_WING_PID       0xDAF9
+#define FTDI_CHAMSYS_USB_DMX_PID       0xDAFA
+#define FTDI_CHAMSYS_MIDI_TIMECODE_PID 0xDAFB
+#define FTDI_CHAMSYS_MINI_WING_PID     0xDAFC
+#define FTDI_CHAMSYS_MAXI_WING_PID     0xDAFD
+#define FTDI_CHAMSYS_MEDIA_WING_PID    0xDAFE
+#define FTDI_CHAMSYS_WING_PID  0xDAFF
+
+/*
  * Westrex International devices submitted by Cory Lee
  */
 #define FTDI_WESTREX_MODEL_777_PID      0xDC00  /* Model 777 */
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 30922a7e3347..aa665817a272 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -2024,6 +2024,9 @@ static int mos7720_ioctl(struct tty_struct *tty, struct file *file,
 
         case TIOCGICOUNT:
                 cnow = mos7720_port->icount;
+
+                memset(&icount, 0, sizeof(struct serial_icounter_struct));
+
                 icount.cts = cnow.cts;
                 icount.dsr = cnow.dsr;
                 icount.rng = cnow.rng;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 585b7e663740..1a42bc213799 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -119,16 +119,20 @@
  * by making a change here, in moschip_port_id_table, and in
  * moschip_id_table_combined
  */
-#define USB_VENDOR_ID_BANDB             0x0856
-#define BANDB_DEVICE_ID_USO9ML2_2       0xAC22
-#define BANDB_DEVICE_ID_USO9ML2_4       0xAC24
-#define BANDB_DEVICE_ID_US9ML2_2        0xAC29
-#define BANDB_DEVICE_ID_US9ML2_4        0xAC30
-#define BANDB_DEVICE_ID_USPTL4_2        0xAC31
-#define BANDB_DEVICE_ID_USPTL4_4        0xAC32
-#define BANDB_DEVICE_ID_USOPTL4_2       0xAC42
-#define BANDB_DEVICE_ID_USOPTL4_4       0xAC44
-#define BANDB_DEVICE_ID_USOPTL2_4       0xAC24
+#define USB_VENDOR_ID_BANDB              0x0856
+#define BANDB_DEVICE_ID_USO9ML2_2        0xAC22
+#define BANDB_DEVICE_ID_USO9ML2_2P       0xBC00
+#define BANDB_DEVICE_ID_USO9ML2_4        0xAC24
+#define BANDB_DEVICE_ID_USO9ML2_4P       0xBC01
+#define BANDB_DEVICE_ID_US9ML2_2         0xAC29
+#define BANDB_DEVICE_ID_US9ML2_4         0xAC30
+#define BANDB_DEVICE_ID_USPTL4_2         0xAC31
+#define BANDB_DEVICE_ID_USPTL4_4         0xAC32
+#define BANDB_DEVICE_ID_USOPTL4_2        0xAC42
+#define BANDB_DEVICE_ID_USOPTL4_2P       0xBC02
+#define BANDB_DEVICE_ID_USOPTL4_4        0xAC44
+#define BANDB_DEVICE_ID_USOPTL4_4P       0xBC03
+#define BANDB_DEVICE_ID_USOPTL2_4        0xAC24
 
 /* This driver also supports
  * ATEN UC2324 device using Moschip MCS7840
@@ -184,13 +188,17 @@ static const struct usb_device_id moschip_port_id_table[] = {
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_2)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_4)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_2)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_4)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4)},
         {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
         {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
@@ -201,13 +209,17 @@ static const struct usb_device_id moschip_id_table_combined[] __devinitconst = {
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
         {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_2)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_4)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_2)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_4)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
+        {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P)},
         {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4)},
         {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
         {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
@@ -2273,6 +2285,9 @@ static int mos7840_ioctl(struct tty_struct *tty, struct file *file,
         case TIOCGICOUNT:
                 cnow = mos7840_port->icount;
                 smp_rmb();
+
+                memset(&icount, 0, sizeof(struct serial_icounter_struct));
+
                 icount.cts = cnow.cts;
                 icount.dsr = cnow.dsr;
                 icount.rng = cnow.rng;
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index adcbdb994de3..c46911af282f 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -164,6 +164,14 @@ static void option_instat_callback(struct urb *urb);
 #define YISO_VENDOR_ID                          0x0EAB
 #define YISO_PRODUCT_U893                       0xC893
 
+/*
+ * NOVATEL WIRELESS PRODUCTS
+ *
+ * Note from Novatel Wireless:
+ * If your Novatel modem does not work on linux, don't
+ * change the option module, but check our website. If
+ * that does not help, contact ddeschepper@nvtl.com
+*/
 /* MERLIN EVDO PRODUCTS */
 #define NOVATELWIRELESS_PRODUCT_V640            0x1100
 #define NOVATELWIRELESS_PRODUCT_V620            0x1110
@@ -185,24 +193,39 @@ static void option_instat_callback(struct urb *urb);
 #define NOVATELWIRELESS_PRODUCT_EU730           0x2400
 #define NOVATELWIRELESS_PRODUCT_EU740           0x2410
 #define NOVATELWIRELESS_PRODUCT_EU870D          0x2420
-
 /* OVATION PRODUCTS */
 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
-#define NOVATELWIRELESS_PRODUCT_U727            0x5010
-#define NOVATELWIRELESS_PRODUCT_MC727_NEW       0x5100
-#define NOVATELWIRELESS_PRODUCT_MC760           0x6000
+/*
+ * Note from Novatel Wireless:
+ * All PID in the 5xxx range are currently reserved for
+ * auto-install CDROMs, and should not be added to this
+ * module.
+ *
+ * #define NOVATELWIRELESS_PRODUCT_U727         0x5010
+ * #define NOVATELWIRELESS_PRODUCT_MC727_NEW    0x5100
+*/
 #define NOVATELWIRELESS_PRODUCT_OVMC760         0x6002
-
-/* FUTURE NOVATEL PRODUCTS */
-#define NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED  0X6001
-#define NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED  0X7000
-#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED  0X7001
-#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED 0X8000
-#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED 0X8001
-#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED 0X9000
-#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0X9001
-#define NOVATELWIRELESS_PRODUCT_GLOBAL          0XA001
+#define NOVATELWIRELESS_PRODUCT_MC780           0x6010
+#define NOVATELWIRELESS_PRODUCT_EVDO_FULLSPEED  0x6000
+#define NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED  0x6001
+#define NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED  0x7000
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED  0x7001
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED3 0x7003
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED4 0x7004
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED5 0x7005
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED6 0x7006
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED7 0x7007
+#define NOVATELWIRELESS_PRODUCT_MC996D          0x7030
+#define NOVATELWIRELESS_PRODUCT_MF3470          0x7041
+#define NOVATELWIRELESS_PRODUCT_MC547           0x7042
+#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED 0x8000
+#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED 0x8001
+#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED 0x9000
+#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0x9001
+#define NOVATELWIRELESS_PRODUCT_G1              0xA001
+#define NOVATELWIRELESS_PRODUCT_G1_M            0xA002
+#define NOVATELWIRELESS_PRODUCT_G2              0xA010
 
 /* AMOI PRODUCTS */
 #define AMOI_VENDOR_ID                          0x1614
@@ -490,36 +513,44 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ETS1220, 0xff, 0xff, 0xff) },
         { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC) },
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727_NEW) }, /* Novatel MC727/U727/USB727 refresh */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel MC727/U727/USB727 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC760) }, /* Novatel MC760/U760/USB760 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_OVMC760) }, /* Novatel Ovation MC760 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED) }, /* Novatel HSPA product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, /* Novatel EVDO Embedded product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) }, /* Novatel HSPA Embedded product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED) }, /* Novatel EVDO product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED) }, /* Novatel HSPA product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED) }, /* Novatel EVDO Embedded product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED) }, /* Novatel HSPA Embedded product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL) }, /* Novatel Global product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_OVMC760) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC780) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_FULLSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED3) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED4) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED5) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED6) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED7) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC996D) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MF3470) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC547) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G1) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G1_M) },
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G2) },
 
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 68c18fdfc6da..e986002b3844 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -46,7 +46,7 @@
 #define FULLPWRBIT          0x00000080
 #define NEXT_BOARD_POWER_BIT        0x00000004
 
-static int debug = 1;
+static int debug;
 
 /* Version Information */
 #define DRIVER_VERSION "v0.1"
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 29e850a7a2f9..7c8008225ee3 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -243,7 +243,7 @@ static int get_rx_bufs(struct vhost_virtqueue *vq,
         int r, nlogs = 0;
 
         while (datalen > 0) {
-                if (unlikely(headcount >= VHOST_NET_MAX_SG)) {
+                if (unlikely(seg >= VHOST_NET_MAX_SG)) {
                         r = -ENOBUFS;
                         goto err;
                 }
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index e05557d52999..dd3d6f7406f8 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -60,22 +60,25 @@ static int vhost_poll_wakeup(wait_queue_t *wait, unsigned mode, int sync,
         return 0;
 }
 
+static void vhost_work_init(struct vhost_work *work, vhost_work_fn_t fn)
+{
+        INIT_LIST_HEAD(&work->node);
+        work->fn = fn;
+        init_waitqueue_head(&work->done);
+        work->flushing = 0;
+        work->queue_seq = work->done_seq = 0;
+}
+
 /* Init poll structure */
 void vhost_poll_init(struct vhost_poll *poll, vhost_work_fn_t fn,
                      unsigned long mask, struct vhost_dev *dev)
 {
-        struct vhost_work *work = &poll->work;
-
         init_waitqueue_func_entry(&poll->wait, vhost_poll_wakeup);
         init_poll_funcptr(&poll->table, vhost_poll_func);
         poll->mask = mask;
         poll->dev = dev;
 
-        INIT_LIST_HEAD(&work->node);
-        work->fn = fn;
-        init_waitqueue_head(&work->done);
-        work->flushing = 0;
-        work->queue_seq = work->done_seq = 0;
+        vhost_work_init(&poll->work, fn);
 }
 
 /* Start polling a file. We add ourselves to file's wait queue. The caller must
@@ -95,35 +98,38 @@ void vhost_poll_stop(struct vhost_poll *poll)
         remove_wait_queue(poll->wqh, &poll->wait);
 }
 
-/* Flush any work that has been scheduled. When calling this, don't hold any
- * locks that are also used by the callback. */
-void vhost_poll_flush(struct vhost_poll *poll)
+static void vhost_work_flush(struct vhost_dev *dev, struct vhost_work *work)
 {
-        struct vhost_work *work = &poll->work;
         unsigned seq;
         int left;
         int flushing;
 
-        spin_lock_irq(&poll->dev->work_lock);
+        spin_lock_irq(&dev->work_lock);
         seq = work->queue_seq;
         work->flushing++;
-        spin_unlock_irq(&poll->dev->work_lock);
+        spin_unlock_irq(&dev->work_lock);
         wait_event(work->done, ({
-                   spin_lock_irq(&poll->dev->work_lock);
+                   spin_lock_irq(&dev->work_lock);
                    left = seq - work->done_seq <= 0;
-                   spin_unlock_irq(&poll->dev->work_lock);
+                   spin_unlock_irq(&dev->work_lock);
                    left;
         }));
-        spin_lock_irq(&poll->dev->work_lock);
+        spin_lock_irq(&dev->work_lock);
         flushing = --work->flushing;
-        spin_unlock_irq(&poll->dev->work_lock);
+        spin_unlock_irq(&dev->work_lock);
         BUG_ON(flushing < 0);
 }
 
-void vhost_poll_queue(struct vhost_poll *poll)
+/* Flush any work that has been scheduled. When calling this, don't hold any
+ * locks that are also used by the callback. */
+void vhost_poll_flush(struct vhost_poll *poll)
+{
+        vhost_work_flush(poll->dev, &poll->work);
+}
+
+static inline void vhost_work_queue(struct vhost_dev *dev,
+                                    struct vhost_work *work)
 {
-        struct vhost_dev *dev = poll->dev;
-        struct vhost_work *work = &poll->work;
         unsigned long flags;
 
         spin_lock_irqsave(&dev->work_lock, flags);
@@ -135,6 +141,11 @@ void vhost_poll_queue(struct vhost_poll *poll)
         spin_unlock_irqrestore(&dev->work_lock, flags);
 }
 
+void vhost_poll_queue(struct vhost_poll *poll)
+{
+        vhost_work_queue(poll->dev, &poll->work);
+}
+
 static void vhost_vq_reset(struct vhost_dev *dev,
                            struct vhost_virtqueue *vq)
 {
@@ -236,6 +247,29 @@ long vhost_dev_check_owner(struct vhost_dev *dev)
         return dev->mm == current->mm ? 0 : -EPERM;
 }
 
+struct vhost_attach_cgroups_struct {
+        struct vhost_work work;
+        struct task_struct *owner;
+        int ret;
+};
+
+static void vhost_attach_cgroups_work(struct vhost_work *work)
+{
+        struct vhost_attach_cgroups_struct *s;
+        s = container_of(work, struct vhost_attach_cgroups_struct, work);
+        s->ret = cgroup_attach_task_all(s->owner, current);
+}
+
+static int vhost_attach_cgroups(struct vhost_dev *dev)
+{
+        struct vhost_attach_cgroups_struct attach;
+        attach.owner = current;
+        vhost_work_init(&attach.work, vhost_attach_cgroups_work);
+        vhost_work_queue(dev, &attach.work);
+        vhost_work_flush(dev, &attach.work);
+        return attach.ret;
+}
+
 /* Caller should have device mutex */
 static long vhost_dev_set_owner(struct vhost_dev *dev)
 {
@@ -255,14 +289,16 @@ static long vhost_dev_set_owner(struct vhost_dev *dev)
         }
 
         dev->worker = worker;
-        err = cgroup_attach_task_current_cg(worker);
+        wake_up_process(worker);        /* avoid contributing to loadavg */
+
+        err = vhost_attach_cgroups(dev);
         if (err)
                 goto err_cgroup;
-        wake_up_process(worker);        /* avoid contributing to loadavg */
 
         return 0;
 err_cgroup:
         kthread_stop(worker);
+        dev->worker = NULL;
 err_worker:
         if (dev->mm)
                 mmput(dev->mm);
@@ -323,7 +359,10 @@ void vhost_dev_cleanup(struct vhost_dev *dev)
         dev->mm = NULL;
 
         WARN_ON(!list_empty(&dev->work_list));
-        kthread_stop(dev->worker);
+        if (dev->worker) {
+                kthread_stop(dev->worker);
+                dev->worker = NULL;
+        }
 }
 
 static int log_access_ok(void __user *log_base, u64 addr, unsigned long sz)
@@ -819,11 +858,12 @@ int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
                 if (r < 0)
                         return r;
                 len -= l;
-                if (!len)
+                if (!len) {
+                        if (vq->log_ctx)
+                                eventfd_signal(vq->log_ctx, 1);
                         return 0;
+                }
         }
-        if (vq->log_ctx)
-                eventfd_signal(vq->log_ctx, 1);
         /* Length written exceeds what we have stored. This is a bug. */
         BUG();
         return 0;
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 84f842331dfa..7ccc967831f0 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -3508,7 +3508,7 @@ static void fbcon_exit(void)
         softback_buf = 0UL;
 
         for (i = 0; i < FB_MAX; i++) {
-                int pending;
+                int pending = 0;
 
                 mapped = 0;
                 info = registered_fb[i];
@@ -3516,7 +3516,8 @@ static void fbcon_exit(void)
                 if (info == NULL)
                         continue;
 
-                pending = cancel_work_sync(&info->queue);
+                if (info->queue.func)
+                        pending = cancel_work_sync(&info->queue);
                 DPRINTK("fbcon: %s pending work\n", (pending ? "canceled" :
                         "no"));
 
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 815f84b07933..70477c2e4b61 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -13,7 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/screen_info.h>
 #include <linux/dmi.h>
-
+#include <linux/pci.h>
 #include <video/vga.h>
 
 static struct fb_var_screeninfo efifb_defined __devinitdata = {
@@ -39,17 +39,31 @@ enum {
         M_I20,          /* 20-Inch iMac */
         M_I20_SR,       /* 20-Inch iMac (Santa Rosa) */
         M_I24,          /* 24-Inch iMac */
+        M_I24_8_1,      /* 24-Inch iMac, 8,1th gen */
+        M_I24_10_1,     /* 24-Inch iMac, 10,1th gen */
+        M_I27_11_1,     /* 27-Inch iMac, 11,1th gen */
         M_MINI,         /* Mac Mini */
+        M_MINI_3_1,     /* Mac Mini, 3,1th gen */
+        M_MINI_4_1,     /* Mac Mini, 4,1th gen */
         M_MB,           /* MacBook */
         M_MB_2,         /* MacBook, 2nd rev. */
         M_MB_3,         /* MacBook, 3rd rev. */
+        M_MB_5_1,       /* MacBook, 5th rev. */
+        M_MB_6_1,       /* MacBook, 6th rev. */
+        M_MB_7_1,       /* MacBook, 7th rev. */
         M_MB_SR,        /* MacBook, 2nd gen, (Santa Rosa) */
         M_MBA,          /* MacBook Air */
         M_MBP,          /* MacBook Pro */
         M_MBP_2,        /* MacBook Pro 2nd gen */
+        M_MBP_2_2,      /* MacBook Pro 2,2nd gen */
         M_MBP_SR,       /* MacBook Pro (Santa Rosa) */
         M_MBP_4,        /* MacBook Pro, 4th gen */
         M_MBP_5_1,    /* MacBook Pro, 5,1th gen */
+        M_MBP_5_2,      /* MacBook Pro, 5,2th gen */
+        M_MBP_5_3,      /* MacBook Pro, 5,3rd gen */
+        M_MBP_6_1,      /* MacBook Pro, 6,1th gen */
+        M_MBP_6_2,      /* MacBook Pro, 6,2th gen */
+        M_MBP_7_1,      /* MacBook Pro, 7,1th gen */
         M_UNKNOWN       /* placeholder */
 };
 
@@ -64,14 +78,28 @@ static struct efifb_dmi_info {
         [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050 }, /* guess */
         [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050 },
         [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200 }, /* guess */
+        [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200 },
+        [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080 },
+        [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440 },
         [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768 },
+        [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768 },
+        [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200 },
         [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800 },
+        [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800 },
+        [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800 },
+        [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800 },
         [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800 },
         [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900 },
         [M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
+        [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900 },
         [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
         [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
         [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900 },
+        [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200 },
+        [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900 },
+        [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200 },
+        [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050 },
+        [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800 },
         [M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
 };
 
@@ -92,7 +120,12 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
         /* At least one of these two will be right; maybe both? */
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
@@ -101,14 +134,23 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
+        EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
         {},
 };
 
@@ -116,7 +158,7 @@ static int set_system(const struct dmi_system_id *id)
 {
         struct efifb_dmi_info *info = id->driver_data;
         if (info->base == 0)
-                return -ENODEV;
+                return 0;
 
         printk(KERN_INFO "efifb: dmi detected %s - framebuffer at %p "
                          "(%dx%d, stride %d)\n", id->ident,
@@ -124,18 +166,55 @@ static int set_system(const struct dmi_system_id *id)
                          info->stride);
 
         /* Trust the bootloader over the DMI tables */
-        if (screen_info.lfb_base == 0)
+        if (screen_info.lfb_base == 0) {
+#if defined(CONFIG_PCI)
+                struct pci_dev *dev = NULL;
+                int found_bar = 0;
+#endif
                 screen_info.lfb_base = info->base;
-        if (screen_info.lfb_linelength == 0)
-                screen_info.lfb_linelength = info->stride;
-        if (screen_info.lfb_width == 0)
-                screen_info.lfb_width = info->width;
-        if (screen_info.lfb_height == 0)
-                screen_info.lfb_height = info->height;
-        if (screen_info.orig_video_isVGA == 0)
-                screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
 
-        return 0;
+#if defined(CONFIG_PCI)
+                /* make sure that the address in the table is actually on a
+                 * VGA device's PCI BAR */
+
+                for_each_pci_dev(dev) {
+                        int i;
+                        if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+                                continue;
+                        for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+                                resource_size_t start, end;
+
+                                start = pci_resource_start(dev, i);
+                                if (start == 0)
+                                        break;
+                                end = pci_resource_end(dev, i);
+                                if (screen_info.lfb_base >= start &&
+                                                screen_info.lfb_base < end) {
+                                        found_bar = 1;
+                                }
+                        }
+                }
+                if (!found_bar)
+                        screen_info.lfb_base = 0;
+#endif
+        }
+        if (screen_info.lfb_base) {
+                if (screen_info.lfb_linelength == 0)
+                        screen_info.lfb_linelength = info->stride;
+                if (screen_info.lfb_width == 0)
+                        screen_info.lfb_width = info->width;
+                if (screen_info.lfb_height == 0)
+                        screen_info.lfb_height = info->height;
+                if (screen_info.orig_video_isVGA == 0)
+                        screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
+        } else {
+                screen_info.lfb_linelength = 0;
+                screen_info.lfb_width = 0;
+                screen_info.lfb_height = 0;
+                screen_info.orig_video_isVGA = 0;
+                return 0;
+        }
+        return 1;
 }
 
 static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
index c91a7f70f7b0..a31a77ff6f3d 100644
--- a/drivers/video/pxa168fb.c
+++ b/drivers/video/pxa168fb.c
@@ -298,8 +298,8 @@ static void set_dma_control0(struct pxa168fb_info *fbi)
          * Set bit to enable graphics DMA.
          */
         x = readl(fbi->reg_base + LCD_SPU_DMA_CTRL0);
-        x |= fbi->active ? 0x00000100 : 0;
-        fbi->active = 0;
+        x &= ~CFG_GRA_ENA_MASK;
+        x |= fbi->active ? CFG_GRA_ENA(1) : CFG_GRA_ENA(0);
 
         /*
          * If we are in a pseudo-color mode, we need to enable
@@ -559,7 +559,7 @@ static struct fb_ops pxa168fb_ops = {
         .fb_imageblit   = cfb_imageblit,
 };
 
-static int __init pxa168fb_init_mode(struct fb_info *info,
+static int __devinit pxa168fb_init_mode(struct fb_info *info,
                               struct pxa168fb_mach_info *mi)
 {
         struct pxa168fb_info *fbi = info->par;
@@ -599,7 +599,7 @@ static int __init pxa168fb_init_mode(struct fb_info *info,
         return ret;
 }
 
-static int __init pxa168fb_probe(struct platform_device *pdev)
+static int __devinit pxa168fb_probe(struct platform_device *pdev)
 {
         struct pxa168fb_mach_info *mi;
         struct fb_info *info = 0;
@@ -792,7 +792,7 @@ static struct platform_driver pxa168fb_driver = {
         .probe          = pxa168fb_probe,
 };
 
-static int __devinit pxa168fb_init(void)
+static int __init pxa168fb_init(void)
 {
         return platform_driver_register(&pxa168fb_driver);
 }
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 559bf1727a2b..b52f8e4ef1fd 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1701,6 +1701,9 @@ static int	sisfb_ioctl(struct fb_info *info, unsigned int cmd,
                 break;
 
            case FBIOGET_VBLANK:
+
+                memset(&sisvbblank, 0, sizeof(struct fb_vblank));
+
                 sisvbblank.count = 0;
                 sisvbblank.flags = sisfb_setupvbblankflags(ivideo, &sisvbblank.vcount, &sisvbblank.hcount);
 
diff --git a/drivers/video/via/ioctl.c b/drivers/video/via/ioctl.c
index da03c074e32a..4d553d0b8d7a 100644
--- a/drivers/video/via/ioctl.c
+++ b/drivers/video/via/ioctl.c
@@ -25,6 +25,8 @@ int viafb_ioctl_get_viafb_info(u_long arg)
 {
         struct viafb_ioctl_info viainfo;
 
+        memset(&viainfo, 0, sizeof(struct viafb_ioctl_info));
+
         viainfo.viafb_id = VIAID;
         viainfo.vendor_id = PCI_VIA_VENDOR_ID;
 
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index b036677df8c4..24efd8ea41bb 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -213,11 +213,11 @@ config OMAP_WATCHDOG
           here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 
 config PNX4008_WATCHDOG
-        tristate "PNX4008 Watchdog"
-        depends on ARCH_PNX4008
+        tristate "PNX4008 and LPC32XX Watchdog"
+        depends on ARCH_PNX4008 || ARCH_LPC32XX
         help
           Say Y here if to include support for the watchdog timer
-          in the PNX4008 processor.
+          in the PNX4008 or LPC32XX processor.
           This driver can be built as a module by choosing M. The module
           will be called pnx4008_wdt.
 
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index 88c83aa57303..f31493e65b38 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -305,7 +305,7 @@ static int __init sbwdog_init(void)
         if (ret) {
                 printk(KERN_ERR "%s: failed to request irq 1 - %d\n",
                                                 ident.identity, ret);
-                return ret;
+                goto out;
         }
 
         ret = misc_register(&sbwdog_miscdev);
@@ -313,14 +313,20 @@ static int __init sbwdog_init(void)
                 printk(KERN_INFO "%s: timeout is %ld.%ld secs\n",
                                 ident.identity,
                                 timeout / 1000000, (timeout / 100000) % 10);
-        } else
-                free_irq(1, (void *)user_dog);
+                return 0;
+        }
+        free_irq(1, (void *)user_dog);
+out:
+        unregister_reboot_notifier(&sbwdog_notifier);
+
         return ret;
 }
 
 static void __exit sbwdog_exit(void)
 {
         misc_deregister(&sbwdog_miscdev);
+        free_irq(1, (void *)user_dog);
+        unregister_reboot_notifier(&sbwdog_notifier);
 }
 
 module_init(sbwdog_init);
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 458c499c1223..18cdeb4c4258 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -449,6 +449,9 @@ static __devinit int ts72xx_wdt_probe(struct platform_device *pdev)
         wdt->pdev = pdev;
         mutex_init(&wdt->lock);
 
+        /* make sure that the watchdog is disabled */
+        ts72xx_wdt_stop(wdt);
+
         error = misc_register(&ts72xx_wdt_miscdev);
         if (error) {
                 dev_err(&pdev->dev, "failed to register miscdev\n");
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 358563689064..6406f896bf95 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -242,7 +242,8 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
         }
         kfree(wnames);
 fid_out:
-        v9fs_fid_add(dentry, fid);
+        if (!IS_ERR(fid))
+                v9fs_fid_add(dentry, fid);
 err_out:
         up_read(&v9ses->rename_sem);
         return fid;
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 16c8a2a98c1b..899f168fd19c 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -292,9 +292,11 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
 
         fid = filp->private_data;
         P9_DPRINTK(P9_DEBUG_VFS,
-                        "inode: %p filp: %p fid: %d\n", inode, filp, fid->fid);
+                        "v9fs_dir_release: inode: %p filp: %p fid: %d\n",
+                        inode, filp, fid ? fid->fid : -1);
         filemap_write_and_wait(inode->i_mapping);
-        p9_client_clunk(fid);
+        if (fid)
+                p9_client_clunk(fid);
         return 0;
 }
 
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index c7c23eab9440..9e670d527646 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -730,7 +730,10 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int mode,
                 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
                 goto error;
         }
-        dentry->d_op = &v9fs_cached_dentry_operations;
+        if (v9ses->cache)
+                dentry->d_op = &v9fs_cached_dentry_operations;
+        else
+                dentry->d_op = &v9fs_dentry_operations;
         d_instantiate(dentry, inode);
         err = v9fs_fid_add(dentry, fid);
         if (err < 0)
@@ -1128,6 +1131,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
         v9fs_stat2inode(st, dentry->d_inode, dentry->d_inode->i_sb);
                 generic_fillattr(dentry->d_inode, stat);
 
+        p9stat_free(st);
         kfree(st);
         return 0;
 }
@@ -1489,6 +1493,7 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
 
         retval = strnlen(buffer, buflen);
 done:
+        p9stat_free(st);
         kfree(st);
         return retval;
 }
@@ -1942,7 +1947,7 @@ static const struct inode_operations v9fs_dir_inode_operations_dotu = {
         .unlink = v9fs_vfs_unlink,
         .mkdir = v9fs_vfs_mkdir,
         .rmdir = v9fs_vfs_rmdir,
-        .mknod = v9fs_vfs_mknod_dotl,
+        .mknod = v9fs_vfs_mknod,
         .rename = v9fs_vfs_rename,
         .getattr = v9fs_vfs_getattr,
         .setattr = v9fs_vfs_setattr,
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index f9311077de68..1d12ba0ed3db 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -122,6 +122,10 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
         fid = v9fs_session_init(v9ses, dev_name, data);
         if (IS_ERR(fid)) {
                 retval = PTR_ERR(fid);
+                /*
+                 * we need to call session_close to tear down some
+                 * of the data structure setup by session_init
+                 */
                 goto close_session;
         }
 
@@ -144,7 +148,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
                 retval = -ENOMEM;
                 goto release_sb;
         }
-
         sb->s_root = root;
 
         if (v9fs_proto_dotl(v9ses)) {
@@ -152,7 +155,7 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
                 st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
                 if (IS_ERR(st)) {
                         retval = PTR_ERR(st);
-                        goto clunk_fid;
+                        goto release_sb;
                 }
 
                 v9fs_stat2inode_dotl(st, root->d_inode);
@@ -162,7 +165,7 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
                 st = p9_client_stat(fid);
                 if (IS_ERR(st)) {
                         retval = PTR_ERR(st);
-                        goto clunk_fid;
+                        goto release_sb;
                 }
 
                 root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
@@ -174,19 +177,24 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
 
         v9fs_fid_add(root, fid);
 
-P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
+        P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
         simple_set_mnt(mnt, sb);
         return 0;
 
 clunk_fid:
         p9_client_clunk(fid);
-
 close_session:
         v9fs_session_close(v9ses);
         kfree(v9ses);
         return retval;
-
 release_sb:
+        /*
+         * we will do the session_close and root dentry release
+         * in the below call. But we need to clunk fid, because we haven't
+         * attached the fid to dentry so it won't get clunked
+         * automatically.
+         */
+        p9_client_clunk(fid);
         deactivate_locked_super(sb);
         return retval;
 }
diff --git a/fs/aio.c b/fs/aio.c
index 3006b5bc33d6..250b0a73c8a8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -712,8 +712,16 @@ static ssize_t aio_run_iocb(struct kiocb *iocb)
          */
         ret = retry(iocb);
 
-        if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED)
+        if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) {
+                /*
+                 * There's no easy way to restart the syscall since other AIO's
+                 * may be already running. Just fail this IO with EINTR.
+                 */
+                if (unlikely(ret == -ERESTARTSYS || ret == -ERESTARTNOINTR ||
+                             ret == -ERESTARTNOHAND || ret == -ERESTART_RESTARTBLOCK))
+                        ret = -EINTR;
                 aio_complete(iocb, ret, 0);
+        }
 out:
         spin_lock_irq(&ctx->ctx_lock);
 
@@ -1659,6 +1667,9 @@ long do_io_submit(aio_context_t ctx_id, long nr,
         if (unlikely(nr < 0))
                 return -EINVAL;
 
+        if (unlikely(nr > LONG_MAX/sizeof(*iocbpp)))
+                nr = LONG_MAX/sizeof(*iocbpp);
+
         if (unlikely(!access_ok(VERIFY_READ, iocbpp, (nr*sizeof(*iocbpp)))))
                 return -EFAULT;
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 535e763ab1a6..6884e198e0c7 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -800,7 +800,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                          * default mmap base, as well as whatever program they
                          * might try to exec.  This is because the brk will
                          * follow the loader, and is not movable.  */
-#ifdef CONFIG_X86
+#if defined(CONFIG_X86) || defined(CONFIG_ARM)
                         load_bias = 0;
 #else
                         load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index a7528b913936..fd0cc0bf9a40 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -724,7 +724,7 @@ static int __init init_misc_binfmt(void)
 {
         int err = register_filesystem(&bm_fs_type);
         if (!err) {
-                err = register_binfmt(&misc_format);
+                err = insert_binfmt(&misc_format);
                 if (err)
                         unregister_filesystem(&bm_fs_type);
         }
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 612a5c38d3c1..4d0ff5ee27b8 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -413,10 +413,10 @@ int bio_integrity_prep(struct bio *bio)
 
         /* Allocate kernel buffer for protection data */
         len = sectors * blk_integrity_tuple_size(bi);
-        buf = kmalloc(len, GFP_NOIO | __GFP_NOFAIL | q->bounce_gfp);
+        buf = kmalloc(len, GFP_NOIO | q->bounce_gfp);
         if (unlikely(buf == NULL)) {
                 printk(KERN_ERR "could not allocate integrity buffer\n");
-                return -EIO;
+                return -ENOMEM;
         }
 
         end = (((unsigned long) buf) + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
diff --git a/fs/ceph/Kconfig b/fs/ceph/Kconfig
index bc87b9c1d27e..0fcd2640c23f 100644
--- a/fs/ceph/Kconfig
+++ b/fs/ceph/Kconfig
@@ -3,6 +3,7 @@ config CEPH_FS
         depends on INET && EXPERIMENTAL
         select LIBCRC32C
         select CRYPTO_AES
+        select CRYPTO
         help
           Choose Y or M here to include support for mounting the
           experimental Ceph distributed file system.  Ceph is an extremely
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 4cfce1ee31fa..efbc604001c8 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -411,8 +411,8 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
         if (i_size < page_off + len)
                 len = i_size - page_off;
 
-        dout("writepage %p page %p index %lu on %llu~%u\n",
-             inode, page, page->index, page_off, len);
+        dout("writepage %p page %p index %lu on %llu~%u snapc %p\n",
+             inode, page, page->index, page_off, len, snapc);
 
         writeback_stat = atomic_long_inc_return(&client->writeback_count);
         if (writeback_stat >
@@ -766,7 +766,8 @@ get_more_pages:
                         /* ok */
                         if (locked_pages == 0) {
                                 /* prepare async write request */
-                                offset = page->index << PAGE_CACHE_SHIFT;
+                                offset = (unsigned long long)page->index
+                                        << PAGE_CACHE_SHIFT;
                                 len = wsize;
                                 req = ceph_osdc_new_request(&client->osdc,
                                             &ci->i_layout,
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index a2069b6680ae..73c153092f72 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -814,7 +814,7 @@ int __ceph_caps_used(struct ceph_inode_info *ci)
                 used |= CEPH_CAP_PIN;
         if (ci->i_rd_ref)
                 used |= CEPH_CAP_FILE_RD;
-        if (ci->i_rdcache_ref || ci->i_rdcache_gen)
+        if (ci->i_rdcache_ref || ci->vfs_inode.i_data.nrpages)
                 used |= CEPH_CAP_FILE_CACHE;
         if (ci->i_wr_ref)
                 used |= CEPH_CAP_FILE_WR;
@@ -1195,10 +1195,14 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
  * asynchronously back to the MDS once sync writes complete and dirty
  * data is written out.
  *
+ * Unless @again is true, skip cap_snaps that were already sent to
+ * the MDS (i.e., during this session).
+ *
  * Called under i_lock.  Takes s_mutex as needed.
  */
 void __ceph_flush_snaps(struct ceph_inode_info *ci,
-                        struct ceph_mds_session **psession)
+                        struct ceph_mds_session **psession,
+                        int again)
                 __releases(ci->vfs_inode->i_lock)
                 __acquires(ci->vfs_inode->i_lock)
 {
@@ -1227,7 +1231,7 @@ retry:
                  * pages to be written out.
                  */
                 if (capsnap->dirty_pages || capsnap->writing)
-                        continue;
+                        break;
 
                 /*
                  * if cap writeback already occurred, we should have dropped
@@ -1240,6 +1244,13 @@ retry:
                         dout("no auth cap (migrating?), doing nothing\n");
                         goto out;
                 }
+
+                /* only flush each capsnap once */
+                if (!again && !list_empty(&capsnap->flushing_item)) {
+                        dout("already flushed %p, skipping\n", capsnap);
+                        continue;
+                }
+
                 mds = ci->i_auth_cap->session->s_mds;
                 mseq = ci->i_auth_cap->mseq;
 
@@ -1276,8 +1287,8 @@ retry:
                               &session->s_cap_snaps_flushing);
                 spin_unlock(&inode->i_lock);
 
-                dout("flush_snaps %p cap_snap %p follows %lld size %llu\n",
-                     inode, capsnap, next_follows, capsnap->size);
+                dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
+                     inode, capsnap, capsnap->follows, capsnap->flush_tid);
                 send_cap_msg(session, ceph_vino(inode).ino, 0,
                              CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,
                              capsnap->dirty, 0, capsnap->flush_tid, 0, mseq,
@@ -1314,7 +1325,7 @@ static void ceph_flush_snaps(struct ceph_inode_info *ci)
         struct inode *inode = &ci->vfs_inode;
 
         spin_lock(&inode->i_lock);
-        __ceph_flush_snaps(ci, NULL);
+        __ceph_flush_snaps(ci, NULL, 0);
         spin_unlock(&inode->i_lock);
 }
 
@@ -1477,7 +1488,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
 
         /* flush snaps first time around only */
         if (!list_empty(&ci->i_cap_snaps))
-                __ceph_flush_snaps(ci, &session);
+                __ceph_flush_snaps(ci, &session, 0);
         goto retry_locked;
 retry:
         spin_lock(&inode->i_lock);
@@ -1894,7 +1905,7 @@ static void kick_flushing_capsnaps(struct ceph_mds_client *mdsc,
                 if (cap && cap->session == session) {
                         dout("kick_flushing_caps %p cap %p capsnap %p\n", inode,
                              cap, capsnap);
-                        __ceph_flush_snaps(ci, &session);
+                        __ceph_flush_snaps(ci, &session, 1);
                 } else {
                         pr_err("%p auth cap %p not mds%d ???\n", inode,
                                cap, session->s_mds);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 6e4f43ff23ec..a1986eb52045 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1021,11 +1021,15 @@ out_touch:
 static void ceph_dentry_release(struct dentry *dentry)
 {
         struct ceph_dentry_info *di = ceph_dentry(dentry);
-        struct inode *parent_inode = dentry->d_parent->d_inode;
-        u64 snapid = ceph_snap(parent_inode);
+        struct inode *parent_inode = NULL;
+        u64 snapid = CEPH_NOSNAP;
 
+        if (!IS_ROOT(dentry)) {
+                parent_inode = dentry->d_parent->d_inode;
+                if (parent_inode)
+                        snapid = ceph_snap(parent_inode);
+        }
         dout("dentry_release %p parent %p\n", dentry, parent_inode);
-
         if (parent_inode && snapid != CEPH_SNAPDIR) {
                 struct ceph_inode_info *ci = ceph_inode(parent_inode);
 
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index e7cca414da03..62377ec37edf 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -845,7 +845,7 @@ static void ceph_set_dentry_offset(struct dentry *dn)
  * the caller) if we fail.
  */
 static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
-                                    bool *prehash)
+                                    bool *prehash, bool set_offset)
 {
         struct dentry *realdn;
 
@@ -877,7 +877,8 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
         }
         if ((!prehash || *prehash) && d_unhashed(dn))
                 d_rehash(dn);
-        ceph_set_dentry_offset(dn);
+        if (set_offset)
+                ceph_set_dentry_offset(dn);
 out:
         return dn;
 }
@@ -1062,7 +1063,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
                                 d_delete(dn);
                                 goto done;
                         }
-                        dn = splice_dentry(dn, in, &have_lease);
+                        dn = splice_dentry(dn, in, &have_lease, true);
                         if (IS_ERR(dn)) {
                                 err = PTR_ERR(dn);
                                 goto done;
@@ -1105,7 +1106,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
                         goto done;
                 }
                 dout(" linking snapped dir %p to dn %p\n", in, dn);
-                dn = splice_dentry(dn, in, NULL);
+                dn = splice_dentry(dn, in, NULL, true);
                 if (IS_ERR(dn)) {
                         err = PTR_ERR(dn);
                         goto done;
@@ -1237,7 +1238,7 @@ retry_lookup:
                                 err = PTR_ERR(in);
                                 goto out;
                         }
-                        dn = splice_dentry(dn, in, NULL);
+                        dn = splice_dentry(dn, in, NULL, false);
                         if (IS_ERR(dn))
                                 dn = NULL;
                 }
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f091b1351786..fad95f8f2608 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2374,6 +2374,8 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
                                                 num_fcntl_locks,
                                                 num_flock_locks);
                 unlock_kernel();
+        } else {
+                err = ceph_pagelist_append(pagelist, &rec, reclen);
         }
 
 out_free:
diff --git a/fs/ceph/pagelist.c b/fs/ceph/pagelist.c
index b6859f47d364..46a368b6dce5 100644
--- a/fs/ceph/pagelist.c
+++ b/fs/ceph/pagelist.c
@@ -5,10 +5,18 @@
 
 #include "pagelist.h"
 
+static void ceph_pagelist_unmap_tail(struct ceph_pagelist *pl)
+{
+        struct page *page = list_entry(pl->head.prev, struct page,
+                                       lru);
+        kunmap(page);
+}
+
 int ceph_pagelist_release(struct ceph_pagelist *pl)
 {
         if (pl->mapped_tail)
-                kunmap(pl->mapped_tail);
+                ceph_pagelist_unmap_tail(pl);
+
         while (!list_empty(&pl->head)) {
                 struct page *page = list_first_entry(&pl->head, struct page,
                                                      lru);
@@ -26,7 +34,7 @@ static int ceph_pagelist_addpage(struct ceph_pagelist *pl)
         pl->room += PAGE_SIZE;
         list_add_tail(&page->lru, &pl->head);
         if (pl->mapped_tail)
-                kunmap(pl->mapped_tail);
+                ceph_pagelist_unmap_tail(pl);
         pl->mapped_tail = kmap(page);
         return 0;
 }
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 4868b9dcac5a..190b6c4a6f2b 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -119,6 +119,7 @@ static struct ceph_snap_realm *ceph_create_snap_realm(
         INIT_LIST_HEAD(&realm->children);
         INIT_LIST_HEAD(&realm->child_item);
         INIT_LIST_HEAD(&realm->empty_item);
+        INIT_LIST_HEAD(&realm->dirty_item);
         INIT_LIST_HEAD(&realm->inodes_with_caps);
         spin_lock_init(&realm->inodes_with_caps_lock);
         __insert_snap_realm(&mdsc->snap_realms, realm);
@@ -467,7 +468,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
                 INIT_LIST_HEAD(&capsnap->ci_item);
                 INIT_LIST_HEAD(&capsnap->flushing_item);
 
-                capsnap->follows = snapc->seq - 1;
+                capsnap->follows = snapc->seq;
                 capsnap->issued = __ceph_caps_issued(ci, NULL);
                 capsnap->dirty = dirty;
 
@@ -604,6 +605,7 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
         struct ceph_snap_realm *realm;
         int invalidate = 0;
         int err = -ENOMEM;
+        LIST_HEAD(dirty_realms);
 
         dout("update_snap_trace deletion=%d\n", deletion);
 more:
@@ -626,24 +628,6 @@ more:
                 }
         }
 
-        if (le64_to_cpu(ri->seq) > realm->seq) {
-                dout("update_snap_trace updating %llx %p %lld -> %lld\n",
-                     realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
-                /*
-                 * if the realm seq has changed, queue a cap_snap for every
-                 * inode with open caps.  we do this _before_ we update
-                 * the realm info so that we prepare for writeback under the
-                 * _previous_ snap context.
-                 *
-                 * ...unless it's a snap deletion!
-                 */
-                if (!deletion)
-                        queue_realm_cap_snaps(realm);
-        } else {
-                dout("update_snap_trace %llx %p seq %lld unchanged\n",
-                     realm->ino, realm, realm->seq);
-        }
-
         /* ensure the parent is correct */
         err = adjust_snap_realm_parent(mdsc, realm, le64_to_cpu(ri->parent));
         if (err < 0)
@@ -651,6 +635,8 @@ more:
         invalidate += err;
 
         if (le64_to_cpu(ri->seq) > realm->seq) {
+                dout("update_snap_trace updating %llx %p %lld -> %lld\n",
+                     realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
                 /* update realm parameters, snap lists */
                 realm->seq = le64_to_cpu(ri->seq);
                 realm->created = le64_to_cpu(ri->created);
@@ -668,9 +654,17 @@ more:
                 if (err < 0)
                         goto fail;
 
+                /* queue realm for cap_snap creation */
+                list_add(&realm->dirty_item, &dirty_realms);
+
                 invalidate = 1;
         } else if (!realm->cached_context) {
+                dout("update_snap_trace %llx %p seq %lld new\n",
+                     realm->ino, realm, realm->seq);
                 invalidate = 1;
+        } else {
+                dout("update_snap_trace %llx %p seq %lld unchanged\n",
+                     realm->ino, realm, realm->seq);
         }
 
         dout("done with %llx %p, invalidated=%d, %p %p\n", realm->ino,
@@ -683,6 +677,14 @@ more:
         if (invalidate)
                 rebuild_snap_realms(realm);
 
+        /*
+         * queue cap snaps _after_ we've built the new snap contexts,
+         * so that i_head_snapc can be set appropriately.
+         */
+        list_for_each_entry(realm, &dirty_realms, dirty_item) {
+                queue_realm_cap_snaps(realm);
+        }
+
         __cleanup_empty_realms(mdsc);
         return 0;
 
@@ -715,7 +717,7 @@ static void flush_snaps(struct ceph_mds_client *mdsc)
                 igrab(inode);
                 spin_unlock(&mdsc->snap_flush_lock);
                 spin_lock(&inode->i_lock);
-                __ceph_flush_snaps(ci, &session);
+                __ceph_flush_snaps(ci, &session, 0);
                 spin_unlock(&inode->i_lock);
                 iput(inode);
                 spin_lock(&mdsc->snap_flush_lock);
@@ -816,6 +818,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
                         };
                         struct inode *inode = ceph_find_inode(sb, vino);
                         struct ceph_inode_info *ci;
+                        struct ceph_snap_realm *oldrealm;
 
                         if (!inode)
                                 continue;
@@ -841,18 +844,19 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
                         dout(" will move %p to split realm %llx %p\n",
                              inode, realm->ino, realm);
                         /*
-                         * Remove the inode from the realm's inode
-                         * list, but don't add it to the new realm
-                         * yet.  We don't want the cap_snap to be
-                         * queued (again) by ceph_update_snap_trace()
-                         * below.  Queue it _now_, under the old context.
+                         * Move the inode to the new realm
                          */
                         spin_lock(&realm->inodes_with_caps_lock);
                         list_del_init(&ci->i_snap_realm_item);
+                        list_add(&ci->i_snap_realm_item,
+                                 &realm->inodes_with_caps);
+                        oldrealm = ci->i_snap_realm;
+                        ci->i_snap_realm = realm;
                         spin_unlock(&realm->inodes_with_caps_lock);
                         spin_unlock(&inode->i_lock);
 
-                        ceph_queue_cap_snap(ci);
+                        ceph_get_snap_realm(mdsc, realm);
+                        ceph_put_snap_realm(mdsc, oldrealm);
 
                         iput(inode);
                         continue;
@@ -880,43 +884,9 @@ skip_inode:
         ceph_update_snap_trace(mdsc, p, e,
                                op == CEPH_SNAP_OP_DESTROY);
 
-        if (op == CEPH_SNAP_OP_SPLIT) {
-                /*
-                 * ok, _now_ add the inodes into the new realm.
-                 */
-                for (i = 0; i < num_split_inos; i++) {
-                        struct ceph_vino vino = {
-                                .ino = le64_to_cpu(split_inos[i]),
-                                .snap = CEPH_NOSNAP,
-                        };
-                        struct inode *inode = ceph_find_inode(sb, vino);
-                        struct ceph_inode_info *ci;
-
-                        if (!inode)
-                                continue;
-                        ci = ceph_inode(inode);
-                        spin_lock(&inode->i_lock);
-                        if (list_empty(&ci->i_snap_realm_item)) {
-                                struct ceph_snap_realm *oldrealm =
-                                        ci->i_snap_realm;
-
-                                dout(" moving %p to split realm %llx %p\n",
-                                     inode, realm->ino, realm);
-                                spin_lock(&realm->inodes_with_caps_lock);
-                                list_add(&ci->i_snap_realm_item,
-                                         &realm->inodes_with_caps);
-                                ci->i_snap_realm = realm;
-                                spin_unlock(&realm->inodes_with_caps_lock);
-                                ceph_get_snap_realm(mdsc, realm);
-                                ceph_put_snap_realm(mdsc, oldrealm);
-                        }
-                        spin_unlock(&inode->i_lock);
-                        iput(inode);
-                }
-
+        if (op == CEPH_SNAP_OP_SPLIT)
                 /* we took a reference when we created the realm, above */
                 ceph_put_snap_realm(mdsc, realm);
-        }
 
         __cleanup_empty_realms(mdsc);
 
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index c33897ae5725..b87638e84c4b 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -690,6 +690,8 @@ struct ceph_snap_realm {
 
         struct list_head empty_item;     /* if i have ref==0 */
 
+        struct list_head dirty_item;     /* if realm needs new context */
+
         /* the current set of snaps for this realm */
         struct ceph_snap_context *cached_context;
 
@@ -826,7 +828,8 @@ extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);
 extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
                                        struct ceph_snap_context *snapc);
 extern void __ceph_flush_snaps(struct ceph_inode_info *ci,
-                               struct ceph_mds_session **psession);
+                               struct ceph_mds_session **psession,
+                               int again);
 extern void ceph_check_caps(struct ceph_inode_info *ci, int flags,
                             struct ceph_mds_session *session);
 extern void ceph_check_delayed_caps(struct ceph_mds_client *mdsc);
diff --git a/fs/char_dev.c b/fs/char_dev.c
index f80a4f25123c..143d393881cb 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -40,7 +40,9 @@ struct backing_dev_info directly_mappable_cdev_bdi = {
 #endif
                 /* permit direct mmap, for read, write or exec */
                 BDI_CAP_MAP_DIRECT |
-                BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP),
+                BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP |
+                /* no writeback happens */
+                BDI_CAP_NO_ACCT_AND_WRITEBACK),
 };
 
 static struct kobj_map *cdev_map;
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 0da1debd499d..917b7d449bb2 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -2,8 +2,6 @@ config CIFS
         tristate "CIFS support (advanced network filesystem, SMBFS successor)"
         depends on INET
         select NLS
-        select CRYPTO_MD5
-        select CRYPTO_ARC4
         help
           This is the client VFS module for the Common Internet File System
           (CIFS) protocol which is the successor to the Server Message Block
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 21f0fbd86989..cfd1ce34e0bc 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -597,13 +597,13 @@ decode_negTokenInit(unsigned char *security_blob, int length,
                                 if (compare_oid(oid, oidlen, MSKRB5_OID,
                                                 MSKRB5_OID_LEN))
                                         server->sec_mskerberos = true;
-                                if (compare_oid(oid, oidlen, KRB5U2U_OID,
+                                else if (compare_oid(oid, oidlen, KRB5U2U_OID,
                                                      KRB5U2U_OID_LEN))
                                         server->sec_kerberosu2u = true;
-                                if (compare_oid(oid, oidlen, KRB5_OID,
+                                else if (compare_oid(oid, oidlen, KRB5_OID,
                                                      KRB5_OID_LEN))
                                         server->sec_kerberos = true;
-                                if (compare_oid(oid, oidlen, NTLMSSP_OID,
+                                else if (compare_oid(oid, oidlen, NTLMSSP_OID,
                                                      NTLMSSP_OID_LEN))
                                         server->sec_ntlmssp = true;
 
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 709f2296bdb4..35042d8f7338 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -27,7 +27,6 @@
 #include "md5.h"
 #include "cifs_unicode.h"
 #include "cifsproto.h"
-#include "ntlmssp.h"
 #include <linux/ctype.h>
 #include <linux/random.h>
 
@@ -43,43 +42,21 @@ extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8,
                        unsigned char *p24);
 
 static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,
-                        struct TCP_Server_Info *server, char *signature)
+                                    const struct mac_key *key, char *signature)
 {
-        int rc;
+        struct  MD5Context context;
 
-        if (cifs_pdu == NULL || server == NULL || signature == NULL)
+        if ((cifs_pdu == NULL) || (signature == NULL) || (key == NULL))
                 return -EINVAL;
 
-        if (!server->ntlmssp.sdescmd5) {
-                cERROR(1,
-                        "cifs_calculate_signature: can't generate signature\n");
-                return -1;
-        }
-
-        rc = crypto_shash_init(&server->ntlmssp.sdescmd5->shash);
-        if (rc) {
-                cERROR(1, "cifs_calculate_signature: oould not init md5\n");
-                return rc;
-        }
-
-        if (server->secType == RawNTLMSSP)
-                crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                        server->session_key.data.ntlmv2.key,
-                        CIFS_NTLMV2_SESSKEY_SIZE);
-        else
-                crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                        (char *)&server->session_key.data,
-                        server->session_key.len);
-
-        crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                        cifs_pdu->Protocol, cifs_pdu->smb_buf_length);
+        cifs_MD5_init(&context);
+        cifs_MD5_update(&context, (char *)&key->data, key->len);
+        cifs_MD5_update(&context, cifs_pdu->Protocol, cifs_pdu->smb_buf_length);
 
-        rc = crypto_shash_final(&server->ntlmssp.sdescmd5->shash, signature);
-
-        return rc;
+        cifs_MD5_final(signature, &context);
+        return 0;
 }
 
-
 int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
                   __u32 *pexpected_response_sequence_number)
 {
@@ -101,7 +78,8 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
         server->sequence_number++;
         spin_unlock(&GlobalMid_Lock);
 
-        rc = cifs_calculate_signature(cifs_pdu, server, smb_signature);
+        rc = cifs_calculate_signature(cifs_pdu, &server->mac_signing_key,
+                                      smb_signature);
         if (rc)
                 memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
         else
@@ -111,39 +89,21 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
 }
 
 static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
-                        struct TCP_Server_Info *server, char *signature)
+                                const struct mac_key *key, char *signature)
 {
+        struct  MD5Context context;
         int i;
-        int rc;
 
-        if (iov == NULL || server == NULL || signature == NULL)
+        if ((iov == NULL) || (signature == NULL) || (key == NULL))
                 return -EINVAL;
 
-        if (!server->ntlmssp.sdescmd5) {
-                cERROR(1, "cifs_calc_signature2: can't generate signature\n");
-                return -1;
-        }
-
-        rc = crypto_shash_init(&server->ntlmssp.sdescmd5->shash);
-        if (rc) {
-                cERROR(1, "cifs_calc_signature2: oould not init md5\n");
-                return rc;
-        }
-
-        if (server->secType == RawNTLMSSP)
-                crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                        server->session_key.data.ntlmv2.key,
-                        CIFS_NTLMV2_SESSKEY_SIZE);
-        else
-                crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                        (char *)&server->session_key.data,
-                        server->session_key.len);
-
+        cifs_MD5_init(&context);
+        cifs_MD5_update(&context, (char *)&key->data, key->len);
         for (i = 0; i < n_vec; i++) {
                 if (iov[i].iov_len == 0)
                         continue;
                 if (iov[i].iov_base == NULL) {
-                        cERROR(1, "cifs_calc_signature2: null iovec entry");
+                        cERROR(1, "null iovec entry");
                         return -EIO;
                 }
                 /* The first entry includes a length field (which does not get
@@ -151,18 +111,18 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
                 if (i == 0) {
                         if (iov[0].iov_len <= 8) /* cmd field at offset 9 */
                                 break; /* nothing to sign or corrupt header */
-                        crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                                iov[i].iov_base + 4, iov[i].iov_len - 4);
+                        cifs_MD5_update(&context, iov[0].iov_base+4,
+                                  iov[0].iov_len-4);
                 } else
-                        crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
-                                iov[i].iov_base, iov[i].iov_len);
+                        cifs_MD5_update(&context, iov[i].iov_base, iov[i].iov_len);
         }
 
-        rc = crypto_shash_final(&server->ntlmssp.sdescmd5->shash, signature);
+        cifs_MD5_final(signature, &context);
 
-        return rc;
+        return 0;
 }
 
+
 int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
                    __u32 *pexpected_response_sequence_number)
 {
@@ -185,7 +145,8 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
         server->sequence_number++;
         spin_unlock(&GlobalMid_Lock);
 
-        rc = cifs_calc_signature2(iov, n_vec, server, smb_signature);
+        rc = cifs_calc_signature2(iov, n_vec, &server->mac_signing_key,
+                                      smb_signature);
         if (rc)
                 memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
         else
@@ -195,14 +156,14 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
 }
 
 int cifs_verify_signature(struct smb_hdr *cifs_pdu,
-                          struct TCP_Server_Info *server,
+                          const struct mac_key *mac_key,
                           __u32 expected_sequence_number)
 {
-        int rc;
+        unsigned int rc;
         char server_response_sig[8];
         char what_we_think_sig_should_be[20];
 
-        if (cifs_pdu == NULL || server == NULL)
+        if ((cifs_pdu == NULL) || (mac_key == NULL))
                 return -EINVAL;
 
         if (cifs_pdu->Command == SMB_COM_NEGOTIATE)
@@ -231,7 +192,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu,
                                         cpu_to_le32(expected_sequence_number);
         cifs_pdu->Signature.Sequence.Reserved = 0;
 
-        rc = cifs_calculate_signature(cifs_pdu, server,
+        rc = cifs_calculate_signature(cifs_pdu, mac_key,
                 what_we_think_sig_should_be);
 
         if (rc)
@@ -248,7 +209,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu,
 }
 
 /* We fill in key by putting in 40 byte array which was allocated by caller */
-int cifs_calculate_session_key(struct session_key *key, const char *rn,
+int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
                            const char *password)
 {
         char temp_key[16];
@@ -306,52 +267,38 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
 {
         int rc = 0;
         int len;
-        char nt_hash[CIFS_NTHASH_SIZE];
+        char nt_hash[16];
+        struct HMACMD5Context *pctxt;
         wchar_t *user;
         wchar_t *domain;
-        wchar_t *server;
 
-        if (!ses->server->ntlmssp.sdeschmacmd5) {
-                cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
-                return -1;
-        }
+        pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL);
+
+        if (pctxt == NULL)
+                return -ENOMEM;
 
         /* calculate md4 hash of password */
         E_md4hash(ses->password, nt_hash);
 
-        crypto_shash_setkey(ses->server->ntlmssp.hmacmd5, nt_hash,
-                                CIFS_NTHASH_SIZE);
-
-        rc = crypto_shash_init(&ses->server->ntlmssp.sdeschmacmd5->shash);
-        if (rc) {
-                cERROR(1, "calc_ntlmv2_hash: could not init hmacmd5\n");
-                return rc;
-        }
+        /* convert Domainname to unicode and uppercase */
+        hmac_md5_init_limK_to_64(nt_hash, 16, pctxt);
 
         /* convert ses->userName to unicode and uppercase */
         len = strlen(ses->userName);
         user = kmalloc(2 + (len * 2), GFP_KERNEL);
-        if (user == NULL) {
-                cERROR(1, "calc_ntlmv2_hash: user mem alloc failure\n");
-                rc = -ENOMEM;
+        if (user == NULL)
                 goto calc_exit_2;
-        }
         len = cifs_strtoUCS((__le16 *)user, ses->userName, len, nls_cp);
         UniStrupr(user);
-
-        crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
-                                (char *)user, 2 * len);
+        hmac_md5_update((char *)user, 2*len, pctxt);
 
         /* convert ses->domainName to unicode and uppercase */
         if (ses->domainName) {
                 len = strlen(ses->domainName);
 
                 domain = kmalloc(2 + (len * 2), GFP_KERNEL);
-                if (domain == NULL) {
-                        cERROR(1, "calc_ntlmv2_hash: domain mem alloc failure");
-                        rc = -ENOMEM;
+                if (domain == NULL)
                         goto calc_exit_1;
-                }
                 len = cifs_strtoUCS((__le16 *)domain, ses->domainName, len,
                                         nls_cp);
                 /* the following line was removed since it didn't work well
@@ -359,292 +306,65 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
                    Maybe converting the domain name earlier makes sense */
                 /* UniStrupr(domain); */
 
-                crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
-                                        (char *)domain, 2 * len);
+                hmac_md5_update((char *)domain, 2*len, pctxt);
 
                 kfree(domain);
-        } else if (ses->serverName) {
-                len = strlen(ses->serverName);
-
-                server = kmalloc(2 + (len * 2), GFP_KERNEL);
-                if (server == NULL) {
-                        cERROR(1, "calc_ntlmv2_hash: server mem alloc failure");
-                        rc = -ENOMEM;
-                        goto calc_exit_1;
-                }
-                len = cifs_strtoUCS((__le16 *)server, ses->serverName, len,
-                                        nls_cp);
-                /* the following line was removed since it didn't work well
-                   with lower cased domain name that passed as an option.
-                   Maybe converting the domain name earlier makes sense */
-                /* UniStrupr(domain); */
-
-                crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
-                                        (char *)server, 2 * len);
-
-                kfree(server);
         }
-
-        rc = crypto_shash_final(&ses->server->ntlmssp.sdeschmacmd5->shash,
-                                        ses->server->ntlmv2_hash);
-
 calc_exit_1:
         kfree(user);
 calc_exit_2:
         /* BB FIXME what about bytes 24 through 40 of the signing key?
            compare with the NTLM example */
+        hmac_md5_final(ses->server->ntlmv2_hash, pctxt);
 
+        kfree(pctxt);
         return rc;
 }
 
-static int
-find_domain_name(struct cifsSesInfo *ses)
-{
-        int rc = 0;
-        unsigned int attrsize;
-        unsigned int type;
-        unsigned char *blobptr;
-        struct ntlmssp2_name *attrptr;
-
-        if (ses->server->tiblob) {
-                blobptr = ses->server->tiblob;
-                attrptr = (struct ntlmssp2_name *) blobptr;
-
-                while ((type = attrptr->type) != 0) {
-                        blobptr += 2; /* advance attr type */
-                        attrsize = attrptr->length;
-                        blobptr += 2; /* advance attr size */
-                        if (type == NTLMSSP_AV_NB_DOMAIN_NAME) {
-                                if (!ses->domainName) {
-                                        ses->domainName =
-                                                kmalloc(attrptr->length + 1,
-                                                                GFP_KERNEL);
-                                        if (!ses->domainName)
-                                                        return -ENOMEM;
-                                        cifs_from_ucs2(ses->domainName,
-                                                (__le16 *)blobptr,
-                                                attrptr->length,
-                                                attrptr->length,
-                                                load_nls_default(), false);
-                                }
-                        }
-                        blobptr += attrsize; /* advance attr  value */
-                        attrptr = (struct ntlmssp2_name *) blobptr;
-                }
-        } else {
-                ses->server->tilen = 2 * sizeof(struct ntlmssp2_name);
-                ses->server->tiblob = kmalloc(ses->server->tilen, GFP_KERNEL);
-                if (!ses->server->tiblob) {
-                        ses->server->tilen = 0;
-                        cERROR(1, "Challenge target info allocation failure");
-                        return -ENOMEM;
-                }
-                memset(ses->server->tiblob, 0x0, ses->server->tilen);
-                attrptr = (struct ntlmssp2_name *) ses->server->tiblob;
-                attrptr->type = cpu_to_le16(NTLMSSP_DOMAIN_TYPE);
-        }
-
-        return rc;
-}
-
-static int
-CalcNTLMv2_response(const struct TCP_Server_Info *server,
-                         char *v2_session_response)
-{
-        int rc;
-
-        if (!server->ntlmssp.sdeschmacmd5) {
-                cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
-                return -1;
-        }
-
-        crypto_shash_setkey(server->ntlmssp.hmacmd5, server->ntlmv2_hash,
-                CIFS_HMAC_MD5_HASH_SIZE);
-
-        rc = crypto_shash_init(&server->ntlmssp.sdeschmacmd5->shash);
-        if (rc) {
-                cERROR(1, "CalcNTLMv2_response: could not init hmacmd5");
-                return rc;
-        }
-
-        memcpy(v2_session_response + CIFS_SERVER_CHALLENGE_SIZE,
-                server->cryptKey, CIFS_SERVER_CHALLENGE_SIZE);
-        crypto_shash_update(&server->ntlmssp.sdeschmacmd5->shash,
-                v2_session_response + CIFS_SERVER_CHALLENGE_SIZE,
-                sizeof(struct ntlmv2_resp) - CIFS_SERVER_CHALLENGE_SIZE);
-
-        if (server->tilen)
-                crypto_shash_update(&server->ntlmssp.sdeschmacmd5->shash,
-                                        server->tiblob, server->tilen);
-
-        rc = crypto_shash_final(&server->ntlmssp.sdeschmacmd5->shash,
-                                        v2_session_response);
-
-        return rc;
-}
-
-int
-setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf,
+void setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf,
                       const struct nls_table *nls_cp)
 {
-        int rc = 0;
+        int rc;
         struct ntlmv2_resp *buf = (struct ntlmv2_resp *)resp_buf;
+        struct HMACMD5Context context;
 
         buf->blob_signature = cpu_to_le32(0x00000101);
         buf->reserved = 0;
         buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
         get_random_bytes(&buf->client_chal, sizeof(buf->client_chal));
         buf->reserved2 = 0;
-
-        if (!ses->domainName) {
-                rc = find_domain_name(ses);
-                if (rc) {
-                        cERROR(1, "could not get domain/server name rc %d", rc);
-                        return rc;
-                }
-        }
+        buf->names[0].type = cpu_to_le16(NTLMSSP_DOMAIN_TYPE);
+        buf->names[0].length = 0;
+        buf->names[1].type = 0;
+        buf->names[1].length = 0;
 
         /* calculate buf->ntlmv2_hash */
         rc = calc_ntlmv2_hash(ses, nls_cp);
-        if (rc) {
-                cERROR(1, "could not get v2 hash rc %d", rc);
-                return rc;
-        }
-        rc = CalcNTLMv2_response(ses->server, resp_buf);
-        if (rc) {
+        if (rc)
                 cERROR(1, "could not get v2 hash rc %d", rc);
-                return rc;
-        }
-
-        if (!ses->server->ntlmssp.sdeschmacmd5) {
-                cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
-                return -1;
-        }
-
-        crypto_shash_setkey(ses->server->ntlmssp.hmacmd5,
-                        ses->server->ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
+        CalcNTLMv2_response(ses, resp_buf);
 
-        rc = crypto_shash_init(&ses->server->ntlmssp.sdeschmacmd5->shash);
-        if (rc) {
-                cERROR(1, "setup_ntlmv2_rsp: could not init hmacmd5\n");
-                return rc;
-        }
+        /* now calculate the MAC key for NTLMv2 */
+        hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context);
+        hmac_md5_update(resp_buf, 16, &context);
+        hmac_md5_final(ses->server->mac_signing_key.data.ntlmv2.key, &context);
 
-        crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
-                                resp_buf, CIFS_HMAC_MD5_HASH_SIZE);
-
-        rc = crypto_shash_final(&ses->server->ntlmssp.sdeschmacmd5->shash,
-                ses->server->session_key.data.ntlmv2.key);
-
-        memcpy(&ses->server->session_key.data.ntlmv2.resp, resp_buf,
-                        sizeof(struct ntlmv2_resp));
-        ses->server->session_key.len = 16 + sizeof(struct ntlmv2_resp);
-
-        return rc;
+        memcpy(&ses->server->mac_signing_key.data.ntlmv2.resp, resp_buf,
+               sizeof(struct ntlmv2_resp));
+        ses->server->mac_signing_key.len = 16 + sizeof(struct ntlmv2_resp);
 }
 
-int
-calc_seckey(struct TCP_Server_Info *server)
-{
-        int rc;
-        unsigned char sec_key[CIFS_NTLMV2_SESSKEY_SIZE];
-        struct crypto_blkcipher *tfm_arc4;
-        struct scatterlist sgin, sgout;
-        struct blkcipher_desc desc;
-
-        get_random_bytes(sec_key, CIFS_NTLMV2_SESSKEY_SIZE);
-
-        tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)",
-                                                0, CRYPTO_ALG_ASYNC);
-        if (!tfm_arc4 || IS_ERR(tfm_arc4)) {
-                cERROR(1, "could not allocate " "master crypto API arc4\n");
-                return 1;
-        }
-
-        desc.tfm = tfm_arc4;
-
-        crypto_blkcipher_setkey(tfm_arc4,
-                server->session_key.data.ntlmv2.key, CIFS_CPHTXT_SIZE);
-        sg_init_one(&sgin, sec_key, CIFS_CPHTXT_SIZE);
-        sg_init_one(&sgout, server->ntlmssp.ciphertext, CIFS_CPHTXT_SIZE);
-        rc = crypto_blkcipher_encrypt(&desc, &sgout, &sgin, CIFS_CPHTXT_SIZE);
-
-        if (!rc)
-                memcpy(server->session_key.data.ntlmv2.key,
-                                sec_key, CIFS_NTLMV2_SESSKEY_SIZE);
-
-        crypto_free_blkcipher(tfm_arc4);
-
-        return 0;
-}
-
-void
-cifs_crypto_shash_release(struct TCP_Server_Info *server)
-{
-        if (server->ntlmssp.md5)
-                crypto_free_shash(server->ntlmssp.md5);
-
-        if (server->ntlmssp.hmacmd5)
-                crypto_free_shash(server->ntlmssp.hmacmd5);
-
-        kfree(server->ntlmssp.sdeschmacmd5);
-
-        kfree(server->ntlmssp.sdescmd5);
-}
-
-int
-cifs_crypto_shash_allocate(struct TCP_Server_Info *server)
+void CalcNTLMv2_response(const struct cifsSesInfo *ses,
+                         char *v2_session_response)
 {
-        int rc;
-        unsigned int size;
-
-        server->ntlmssp.hmacmd5 = crypto_alloc_shash("hmac(md5)", 0, 0);
-        if (!server->ntlmssp.hmacmd5 ||
-                        IS_ERR(server->ntlmssp.hmacmd5)) {
-                cERROR(1, "could not allocate crypto hmacmd5\n");
-                return 1;
-        }
-
-        server->ntlmssp.md5 = crypto_alloc_shash("md5", 0, 0);
-        if (!server->ntlmssp.md5 || IS_ERR(server->ntlmssp.md5)) {
-                cERROR(1, "could not allocate crypto md5\n");
-                rc = 1;
-                goto cifs_crypto_shash_allocate_ret1;
-        }
-
-        size = sizeof(struct shash_desc) +
-                        crypto_shash_descsize(server->ntlmssp.hmacmd5);
-        server->ntlmssp.sdeschmacmd5 = kmalloc(size, GFP_KERNEL);
-        if (!server->ntlmssp.sdeschmacmd5) {
-                cERROR(1, "cifs_crypto_shash_allocate: can't alloc hmacmd5\n");
-                rc = -ENOMEM;
-                goto cifs_crypto_shash_allocate_ret2;
-        }
-        server->ntlmssp.sdeschmacmd5->shash.tfm = server->ntlmssp.hmacmd5;
-        server->ntlmssp.sdeschmacmd5->shash.flags = 0x0;
+        struct HMACMD5Context context;
+        /* rest of v2 struct already generated */
+        memcpy(v2_session_response + 8, ses->server->cryptKey, 8);
+        hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context);
 
+        hmac_md5_update(v2_session_response+8,
+                        sizeof(struct ntlmv2_resp) - 8, &context);
 
-        size = sizeof(struct shash_desc) +
-                        crypto_shash_descsize(server->ntlmssp.md5);
-        server->ntlmssp.sdescmd5 = kmalloc(size, GFP_KERNEL);
-        if (!server->ntlmssp.sdescmd5) {
-                cERROR(1, "cifs_crypto_shash_allocate: can't alloc md5\n");
-                rc = -ENOMEM;
-                goto cifs_crypto_shash_allocate_ret3;
-        }
-        server->ntlmssp.sdescmd5->shash.tfm = server->ntlmssp.md5;
-        server->ntlmssp.sdescmd5->shash.flags = 0x0;
-
-        return 0;
-
-cifs_crypto_shash_allocate_ret3:
-        kfree(server->ntlmssp.sdeschmacmd5);
-
-cifs_crypto_shash_allocate_ret2:
-        crypto_free_shash(server->ntlmssp.md5);
-
-cifs_crypto_shash_allocate_ret1:
-        crypto_free_shash(server->ntlmssp.hmacmd5);
-
-        return rc;
+        hmac_md5_final(v2_session_response, &context);
+/*      cifs_dump_mem("v2_sess_rsp: ", v2_session_response, 32); */
 }
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index c9d0cfc086eb..0cdfb8c32ac6 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -25,9 +25,6 @@
 #include <linux/workqueue.h>
 #include "cifs_fs_sb.h"
 #include "cifsacl.h"
-#include <crypto/internal/hash.h>
-#include <linux/scatterlist.h>
-
 /*
  * The sizes of various internal tables and strings
  */
@@ -100,7 +97,7 @@ enum protocolEnum {
         /* Netbios frames protocol not supported at this time */
 };
 
-struct session_key {
+struct mac_key {
         unsigned int len;
         union {
                 char ntlm[CIFS_SESS_KEY_SIZE + 16];
@@ -123,21 +120,6 @@ struct cifs_cred {
         struct cifs_ace *aces;
 };
 
-struct sdesc {
-        struct shash_desc shash;
-        char ctx[];
-};
-
-struct ntlmssp_auth {
-        __u32 client_flags;
-        __u32 server_flags;
-        unsigned char ciphertext[CIFS_CPHTXT_SIZE];
-        struct crypto_shash *hmacmd5;
-        struct crypto_shash *md5;
-        struct sdesc *sdeschmacmd5;
-        struct sdesc *sdescmd5;
-};
-
 /*
  *****************************************************************
  * Except the CIFS PDUs themselves all the
@@ -200,14 +182,11 @@ struct TCP_Server_Info {
         /* 16th byte of RFC1001 workstation name is always null */
         char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
         __u32 sequence_number; /* needed for CIFS PDU signature */
-        struct session_key session_key;
+        struct mac_key mac_signing_key;
         char ntlmv2_hash[16];
         unsigned long lstrp; /* when we got last response from this server */
         u16 dialect; /* dialect index that server chose */
         /* extended security flavors that server supports */
-        unsigned int tilen; /* length of the target info blob */
-        unsigned char *tiblob; /* target info blob in challenge response */
-        struct ntlmssp_auth ntlmssp; /* various keys, ciphers, flags */
         bool    sec_kerberos;           /* supports plain Kerberos */
         bool    sec_mskerberos;         /* supports legacy MS Kerberos */
         bool    sec_kerberosu2u;        /* supports U2U Kerberos */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 320e0fd0ba7b..14d036d8db11 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -134,12 +134,6 @@
  * Size of the session key (crypto key encrypted with the password
  */
 #define CIFS_SESS_KEY_SIZE (24)
-#define CIFS_CLIENT_CHALLENGE_SIZE (8)
-#define CIFS_SERVER_CHALLENGE_SIZE (8)
-#define CIFS_HMAC_MD5_HASH_SIZE (16)
-#define CIFS_CPHTXT_SIZE (16)
-#define CIFS_NTLMV2_SESSKEY_SIZE (16)
-#define CIFS_NTHASH_SIZE (16)
 
 /*
  * Maximum user name length
@@ -669,6 +663,7 @@ struct ntlmv2_resp {
         __le64  time;
         __u64  client_chal; /* random */
         __u32  reserved2;
+        struct ntlmssp2_name names[2];
         /* array of name entries could follow ending in minimum 4 byte struct */
 } __attribute__((packed));
 
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 1378d9133844..1d60c655e3e0 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -87,8 +87,9 @@ extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
 extern int decode_negTokenInit(unsigned char *security_blob, int length,
                         struct TCP_Server_Info *server);
 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
+extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
-                                unsigned short int port);
+                                const unsigned short int port);
 extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
 extern void header_assemble(struct smb_hdr *, char /* command */ ,
                             const struct cifsTconInfo *, int /* length of
@@ -361,15 +362,13 @@ extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
                           __u32 *);
 extern int cifs_verify_signature(struct smb_hdr *,
-                                 struct TCP_Server_Info *server,
+                                 const struct mac_key *mac_key,
                                 __u32 expected_sequence_number);
-extern int cifs_calculate_session_key(struct session_key *key, const char *rn,
+extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
                                  const char *pass);
-extern int setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
+extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *);
+extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
                              const struct nls_table *);
-extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
-extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
-extern int calc_seckey(struct TCP_Server_Info *);
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 extern void calc_lanman_hash(const char *password, const char *cryptkey,
                                 bool encrypt, char *lnm_session_key);
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 4bda920d1f75..c65c3419dd37 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -604,14 +604,11 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
                         else
                                 rc = -EINVAL;
 
-                        if (server->secType == Kerberos) {
-                                if (!server->sec_kerberos &&
-                                                !server->sec_mskerberos)
-                                        rc = -EOPNOTSUPP;
-                        } else if (server->secType == RawNTLMSSP) {
-                                if (!server->sec_ntlmssp)
-                                        rc = -EOPNOTSUPP;
-                        } else
+                        if (server->sec_kerberos || server->sec_mskerberos)
+                                server->secType = Kerberos;
+                        else if (server->sec_ntlmssp)
+                                server->secType = RawNTLMSSP;
+                        else
                                 rc = -EOPNOTSUPP;
                 }
         } else
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index ec0ea4a43bdb..88c84a38bccb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -400,7 +400,9 @@ incomplete_rcv:
                         cFYI(1, "call to reconnect done");
                         csocket = server->ssocket;
                         continue;
-                } else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) {
+                } else if (length == -ERESTARTSYS ||
+                           length == -EAGAIN ||
+                           length == -EINTR) {
                         msleep(1); /* minimum sleep to prevent looping
                                 allowing socket to clear and app threads to set
                                 tcpStatus CifsNeedReconnect if server hung */
@@ -414,18 +416,6 @@ incomplete_rcv:
                         } else
                                 continue;
                 } else if (length <= 0) {
-                        if (server->tcpStatus == CifsNew) {
-                                cFYI(1, "tcp session abend after SMBnegprot");
-                                /* some servers kill the TCP session rather than
-                                   returning an SMB negprot error, in which
-                                   case reconnecting here is not going to help,
-                                   and so simply return error to mount */
-                                break;
-                        }
-                        if (!try_to_freeze() && (length == -EINTR)) {
-                                cFYI(1, "cifsd thread killed");
-                                break;
-                        }
                         cFYI(1, "Reconnect after unexpected peek error %d",
                                 length);
                         cifs_reconnect(server);
@@ -466,27 +456,19 @@ incomplete_rcv:
                            an error on SMB negprot response */
                         cFYI(1, "Negative RFC1002 Session Response Error 0x%x)",
                                 pdu_length);
-                        if (server->tcpStatus == CifsNew) {
-                                /* if nack on negprot (rather than
-                                ret of smb negprot error) reconnecting
-                                not going to help, ret error to mount */
-                                break;
-                        } else {
-                                /* give server a second to
-                                clean up before reconnect attempt */
-                                msleep(1000);
-                                /* always try 445 first on reconnect
-                                since we get NACK on some if we ever
-                                connected to port 139 (the NACK is
-                                since we do not begin with RFC1001
-                                session initialize frame) */
-                                server->addr.sockAddr.sin_port =
-                                        htons(CIFS_PORT);
-                                cifs_reconnect(server);
-                                csocket = server->ssocket;
-                                wake_up(&server->response_q);
-                                continue;
-                        }
+                        /* give server a second to clean up  */
+                        msleep(1000);
+                        /* always try 445 first on reconnect since we get NACK
+                         * on some if we ever connected to port 139 (the NACK
+                         * is since we do not begin with RFC1001 session
+                         * initialize frame)
+                         */
+                        cifs_set_port((struct sockaddr *)
+                                        &server->addr.sockAddr, CIFS_PORT);
+                        cifs_reconnect(server);
+                        csocket = server->ssocket;
+                        wake_up(&server->response_q);
+                        continue;
                 } else if (temp != (char) 0) {
                         cERROR(1, "Unknown RFC 1002 frame");
                         cifs_dump_mem(" Received Data: ", (char *)smb_buffer,
@@ -522,8 +504,7 @@ incomplete_rcv:
                      total_read += length) {
                         length = kernel_recvmsg(csocket, &smb_msg, &iov, 1,
                                                 pdu_length - total_read, 0);
-                        if ((server->tcpStatus == CifsExiting) ||
-                            (length == -EINTR)) {
+                        if (server->tcpStatus == CifsExiting) {
                                 /* then will exit */
                                 reconnect = 2;
                                 break;
@@ -534,8 +515,9 @@ incomplete_rcv:
                                 /* Now we will reread sock */
                                 reconnect = 1;
                                 break;
-                        } else if ((length == -ERESTARTSYS) ||
-                                   (length == -EAGAIN)) {
+                        } else if (length == -ERESTARTSYS ||
+                                   length == -EAGAIN ||
+                                   length == -EINTR) {
                                 msleep(1); /* minimum sleep to prevent looping,
                                               allowing socket to clear and app
                                               threads to set tcpStatus
@@ -1708,7 +1690,6 @@ cifs_put_smb_ses(struct cifsSesInfo *ses)
                 CIFSSMBLogoff(xid, ses);
                 _FreeXid(xid);
         }
-        cifs_crypto_shash_release(server);
         sesInfoFree(ses);
         cifs_put_tcp_session(server);
 }
@@ -1725,9 +1706,6 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
         if (ses) {
                 cFYI(1, "Existing smb sess found (status=%d)", ses->status);
 
-                /* existing SMB ses has a server reference already */
-                cifs_put_tcp_session(server);
-
                 mutex_lock(&ses->session_mutex);
                 rc = cifs_negotiate_protocol(xid, ses);
                 if (rc) {
@@ -1750,6 +1728,9 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
                         }
                 }
                 mutex_unlock(&ses->session_mutex);
+
+                /* existing SMB ses has a server reference already */
+                cifs_put_tcp_session(server);
                 FreeXid(xid);
                 return ses;
         }
@@ -1788,23 +1769,13 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
         ses->linux_uid = volume_info->linux_uid;
         ses->overrideSecFlg = volume_info->secFlg;
 
-        rc = cifs_crypto_shash_allocate(server);
-        if (rc) {
-                cERROR(1, "could not setup hash structures rc %d", rc);
-                goto get_ses_fail;
-        }
-        server->tilen = 0;
-        server->tiblob = NULL;
-
         mutex_lock(&ses->session_mutex);
         rc = cifs_negotiate_protocol(xid, ses);
         if (!rc)
                 rc = cifs_setup_session(xid, ses, volume_info->local_nls);
         mutex_unlock(&ses->session_mutex);
-        if (rc) {
-                cifs_crypto_shash_release(ses->server);
+        if (rc)
                 goto get_ses_fail;
-        }
 
         /* success, put it on the list */
         write_lock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 86a164f08a74..93f77d438d3c 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1462,29 +1462,18 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
 {
         char *fromName = NULL;
         char *toName = NULL;
-        struct cifs_sb_info *cifs_sb_source;
-        struct cifs_sb_info *cifs_sb_target;
+        struct cifs_sb_info *cifs_sb;
         struct cifsTconInfo *tcon;
         FILE_UNIX_BASIC_INFO *info_buf_source = NULL;
         FILE_UNIX_BASIC_INFO *info_buf_target;
         int xid, rc, tmprc;
 
-        cifs_sb_target = CIFS_SB(target_dir->i_sb);
-        cifs_sb_source = CIFS_SB(source_dir->i_sb);
-        tcon = cifs_sb_source->tcon;
+        cifs_sb = CIFS_SB(source_dir->i_sb);
+        tcon = cifs_sb->tcon;
 
         xid = GetXid();
 
         /*
-         * BB: this might be allowed if same server, but different share.
-         * Consider adding support for this
-         */
-        if (tcon != cifs_sb_target->tcon) {
-                rc = -EXDEV;
-                goto cifs_rename_exit;
-        }
-
-        /*
          * we already have the rename sem so we do not need to
          * grab it again here to protect the path integrity
          */
@@ -1519,17 +1508,16 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
                 info_buf_target = info_buf_source + 1;
                 tmprc = CIFSSMBUnixQPathInfo(xid, tcon, fromName,
                                         info_buf_source,
-                                        cifs_sb_source->local_nls,
-                                        cifs_sb_source->mnt_cifs_flags &
+                                        cifs_sb->local_nls,
+                                        cifs_sb->mnt_cifs_flags &
                                         CIFS_MOUNT_MAP_SPECIAL_CHR);
                 if (tmprc != 0)
                         goto unlink_target;
 
-                tmprc = CIFSSMBUnixQPathInfo(xid, tcon,
-                                        toName, info_buf_target,
-                                        cifs_sb_target->local_nls,
-                                        /* remap based on source sb */
-                                        cifs_sb_source->mnt_cifs_flags &
+                tmprc = CIFSSMBUnixQPathInfo(xid, tcon, toName,
+                                        info_buf_target,
+                                        cifs_sb->local_nls,
+                                        cifs_sb->mnt_cifs_flags &
                                         CIFS_MOUNT_MAP_SPECIAL_CHR);
 
                 if (tmprc == 0 && (info_buf_source->UniqueId ==
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index f97851119e6c..9aad47a2d62f 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -206,26 +206,30 @@ cifs_convert_address(struct sockaddr *dst, const char *src, int len)
 }
 
 int
-cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
-                   const unsigned short int port)
+cifs_set_port(struct sockaddr *addr, const unsigned short int port)
 {
-        if (!cifs_convert_address(dst, src, len))
-                return 0;
-
-        switch (dst->sa_family) {
+        switch (addr->sa_family) {
         case AF_INET:
-                ((struct sockaddr_in *)dst)->sin_port = htons(port);
+                ((struct sockaddr_in *)addr)->sin_port = htons(port);
                 break;
         case AF_INET6:
-                ((struct sockaddr_in6 *)dst)->sin6_port = htons(port);
+                ((struct sockaddr_in6 *)addr)->sin6_port = htons(port);
                 break;
         default:
                 return 0;
         }
-
         return 1;
 }
 
+int
+cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
+                   const unsigned short int port)
+{
+        if (!cifs_convert_address(dst, src, len))
+                return 0;
+        return cifs_set_port(dst, port);
+}
+
 /*****************************************************************************
 convert a NT status code to a dos class/code
  *****************************************************************************/
diff --git a/fs/cifs/ntlmssp.h b/fs/cifs/ntlmssp.h
index 1db0f0746a5b..49c9a4e75319 100644
--- a/fs/cifs/ntlmssp.h
+++ b/fs/cifs/ntlmssp.h
@@ -61,19 +61,6 @@
 #define NTLMSSP_NEGOTIATE_KEY_XCH   0x40000000
 #define NTLMSSP_NEGOTIATE_56        0x80000000
 
-/* Define AV Pair Field IDs */
-#define NTLMSSP_AV_EOL                  0
-#define NTLMSSP_AV_NB_COMPUTER_NAME     1
-#define NTLMSSP_AV_NB_DOMAIN_NAME       2
-#define NTLMSSP_AV_DNS_COMPUTER_NAME    3
-#define NTLMSSP_AV_DNS_DOMAIN_NAME      4
-#define NTLMSSP_AV_DNS_TREE_NAME        5
-#define NTLMSSP_AV_FLAGS                6
-#define NTLMSSP_AV_TIMESTAMP            7
-#define NTLMSSP_AV_RESTRICTION          8
-#define NTLMSSP_AV_TARGET_NAME          9
-#define NTLMSSP_AV_CHANNEL_BINDINGS     10
-
 /* Although typedefs are not commonly used for structure definitions */
 /* in the Linux kernel, in this particular case they are useful      */
 /* to more closely match the standards document for NTLMSSP from     */
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 795095f4eac6..0a57cb7db5dd 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -383,9 +383,6 @@ static int decode_ascii_ssetup(char **pbcc_area, int bleft,
 static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
                                     struct cifsSesInfo *ses)
 {
-        unsigned int tioffset; /* challeng message target info area */
-        unsigned int tilen; /* challeng message target info area length  */
-
         CHALLENGE_MESSAGE *pblob = (CHALLENGE_MESSAGE *)bcc_ptr;
 
         if (blob_len < sizeof(CHALLENGE_MESSAGE)) {
@@ -408,20 +405,6 @@ static int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len,
         /* BB spec says that if AvId field of MsvAvTimestamp is populated then
                 we must set the MIC field of the AUTHENTICATE_MESSAGE */
 
-        ses->server->ntlmssp.server_flags = le32_to_cpu(pblob->NegotiateFlags);
-
-        tioffset = cpu_to_le16(pblob->TargetInfoArray.BufferOffset);
-        tilen = cpu_to_le16(pblob->TargetInfoArray.Length);
-        ses->server->tilen = tilen;
-        if (tilen) {
-                ses->server->tiblob = kmalloc(tilen, GFP_KERNEL);
-                if (!ses->server->tiblob) {
-                        cERROR(1, "Challenge target info allocation failure");
-                        return -ENOMEM;
-                }
-                memcpy(ses->server->tiblob,  bcc_ptr + tioffset, tilen);
-        }
-
         return 0;
 }
 
@@ -442,13 +425,12 @@ static void build_ntlmssp_negotiate_blob(unsigned char *pbuffer,
         /* BB is NTLMV2 session security format easier to use here? */
         flags = NTLMSSP_NEGOTIATE_56 |  NTLMSSP_REQUEST_TARGET |
                 NTLMSSP_NEGOTIATE_128 | NTLMSSP_NEGOTIATE_UNICODE |
-                NTLMSSP_NEGOTIATE_NTLM;
+                NTLMSSP_NEGOTIATE_NT_ONLY | NTLMSSP_NEGOTIATE_NTLM;
         if (ses->server->secMode &
-           (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) {
-                flags |= NTLMSSP_NEGOTIATE_SIGN |
-                        NTLMSSP_NEGOTIATE_KEY_XCH |
-                        NTLMSSP_NEGOTIATE_EXTENDED_SEC;
-        }
+           (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+                flags |= NTLMSSP_NEGOTIATE_SIGN;
+        if (ses->server->secMode & SECMODE_SIGN_REQUIRED)
+                flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
 
         sec_blob->NegotiateFlags |= cpu_to_le32(flags);
 
@@ -469,12 +451,10 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
                                    struct cifsSesInfo *ses,
                                    const struct nls_table *nls_cp, bool first)
 {
-        int rc;
-        unsigned int size;
         AUTHENTICATE_MESSAGE *sec_blob = (AUTHENTICATE_MESSAGE *)pbuffer;
         __u32 flags;
         unsigned char *tmp;
-        struct ntlmv2_resp ntlmv2_response = {};
+        char ntlm_session_key[CIFS_SESS_KEY_SIZE];
 
         memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8);
         sec_blob->MessageType = NtLmAuthenticate;
@@ -497,25 +477,19 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
         sec_blob->LmChallengeResponse.Length = 0;
         sec_blob->LmChallengeResponse.MaximumLength = 0;
 
-        sec_blob->NtChallengeResponse.BufferOffset = cpu_to_le32(tmp - pbuffer);
-        rc = setup_ntlmv2_rsp(ses, (char *)&ntlmv2_response, nls_cp);
-        if (rc) {
-                cERROR(1, "error rc: %d during ntlmssp ntlmv2 setup", rc);
-                goto setup_ntlmv2_ret;
-        }
-        size =  sizeof(struct ntlmv2_resp);
-        memcpy(tmp, (char *)&ntlmv2_response, size);
-        tmp += size;
-        if (ses->server->tilen > 0) {
-                memcpy(tmp, ses->server->tiblob, ses->server->tilen);
-                tmp += ses->server->tilen;
-        } else
-                ses->server->tilen = 0;
+        /* calculate session key,  BB what about adding similar ntlmv2 path? */
+        SMBNTencrypt(ses->password, ses->server->cryptKey, ntlm_session_key);
+        if (first)
+                cifs_calculate_mac_key(&ses->server->mac_signing_key,
+                                       ntlm_session_key, ses->password);
 
-        sec_blob->NtChallengeResponse.Length = cpu_to_le16(size +
-                                ses->server->tilen);
+        memcpy(tmp, ntlm_session_key, CIFS_SESS_KEY_SIZE);
+        sec_blob->NtChallengeResponse.BufferOffset = cpu_to_le32(tmp - pbuffer);
+        sec_blob->NtChallengeResponse.Length = cpu_to_le16(CIFS_SESS_KEY_SIZE);
         sec_blob->NtChallengeResponse.MaximumLength =
-                cpu_to_le16(size + ses->server->tilen);
+                                cpu_to_le16(CIFS_SESS_KEY_SIZE);
+
+        tmp += CIFS_SESS_KEY_SIZE;
 
         if (ses->domainName == NULL) {
                 sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
@@ -527,6 +501,7 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
                 len = cifs_strtoUCS((__le16 *)tmp, ses->domainName,
                                     MAX_USERNAME_SIZE, nls_cp);
                 len *= 2; /* unicode is 2 bytes each */
+                len += 2; /* trailing null */
                 sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer);
                 sec_blob->DomainName.Length = cpu_to_le16(len);
                 sec_blob->DomainName.MaximumLength = cpu_to_le16(len);
@@ -543,6 +518,7 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
                 len = cifs_strtoUCS((__le16 *)tmp, ses->userName,
                                     MAX_USERNAME_SIZE, nls_cp);
                 len *= 2; /* unicode is 2 bytes each */
+                len += 2; /* trailing null */
                 sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer);
                 sec_blob->UserName.Length = cpu_to_le16(len);
                 sec_blob->UserName.MaximumLength = cpu_to_le16(len);
@@ -554,26 +530,9 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
         sec_blob->WorkstationName.MaximumLength = 0;
         tmp += 2;
 
-        if ((ses->server->ntlmssp.server_flags & NTLMSSP_NEGOTIATE_KEY_XCH) &&
-                        !calc_seckey(ses->server)) {
-                memcpy(tmp, ses->server->ntlmssp.ciphertext, CIFS_CPHTXT_SIZE);
-                sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
-                sec_blob->SessionKey.Length = cpu_to_le16(CIFS_CPHTXT_SIZE);
-                sec_blob->SessionKey.MaximumLength =
-                        cpu_to_le16(CIFS_CPHTXT_SIZE);
-                tmp += CIFS_CPHTXT_SIZE;
-        } else {
-                sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
-                sec_blob->SessionKey.Length = 0;
-                sec_blob->SessionKey.MaximumLength = 0;
-        }
-
-        ses->server->sequence_number = 0;
-
-setup_ntlmv2_ret:
-        if (ses->server->tilen > 0)
-                kfree(ses->server->tiblob);
-
+        sec_blob->SessionKey.BufferOffset = cpu_to_le32(tmp - pbuffer);
+        sec_blob->SessionKey.Length = 0;
+        sec_blob->SessionKey.MaximumLength = 0;
         return tmp - pbuffer;
 }
 
@@ -587,14 +546,15 @@ static void setup_ntlmssp_neg_req(SESSION_SETUP_ANDX *pSMB,
         return;
 }
 
-static int setup_ntlmssp_auth_req(char *ntlmsspblob,
+static int setup_ntlmssp_auth_req(SESSION_SETUP_ANDX *pSMB,
                                   struct cifsSesInfo *ses,
                                   const struct nls_table *nls, bool first_time)
 {
         int bloblen;
 
-        bloblen = build_ntlmssp_auth_blob(ntlmsspblob, ses, nls,
+        bloblen = build_ntlmssp_auth_blob(&pSMB->req.SecurityBlob[0], ses, nls,
                                           first_time);
+        pSMB->req.SecurityBlobLength = cpu_to_le16(bloblen);
 
         return bloblen;
 }
@@ -730,7 +690,7 @@ ssetup_ntlmssp_authenticate:
 
                 if (first_time) /* should this be moved into common code
                                   with similar ntlmv2 path? */
-                        cifs_calculate_session_key(&ses->server->session_key,
+                        cifs_calculate_mac_key(&ses->server->mac_signing_key,
                                 ntlm_session_key, ses->password);
                 /* copy session key */
 
@@ -769,21 +729,12 @@ ssetup_ntlmssp_authenticate:
                         cpu_to_le16(sizeof(struct ntlmv2_resp));
 
                 /* calculate session key */
-                rc = setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp);
-                if (rc) {
-                        kfree(v2_sess_key);
-                        goto ssetup_exit;
-                }
+                setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp);
                 /* FIXME: calculate MAC key */
                 memcpy(bcc_ptr, (char *)v2_sess_key,
                        sizeof(struct ntlmv2_resp));
                 bcc_ptr += sizeof(struct ntlmv2_resp);
                 kfree(v2_sess_key);
-                if (ses->server->tilen > 0) {
-                        memcpy(bcc_ptr, ses->server->tiblob,
-                                ses->server->tilen);
-                        bcc_ptr += ses->server->tilen;
-                }
                 if (ses->capabilities & CAP_UNICODE) {
                         if (iov[0].iov_len % 2) {
                                 *bcc_ptr = 0;
@@ -814,15 +765,15 @@ ssetup_ntlmssp_authenticate:
                 }
                 /* bail out if key is too long */
                 if (msg->sesskey_len >
-                    sizeof(ses->server->session_key.data.krb5)) {
+                    sizeof(ses->server->mac_signing_key.data.krb5)) {
                         cERROR(1, "Kerberos signing key too long (%u bytes)",
                                 msg->sesskey_len);
                         rc = -EOVERFLOW;
                         goto ssetup_exit;
                 }
                 if (first_time) {
-                        ses->server->session_key.len = msg->sesskey_len;
-                        memcpy(ses->server->session_key.data.krb5,
+                        ses->server->mac_signing_key.len = msg->sesskey_len;
+                        memcpy(ses->server->mac_signing_key.data.krb5,
                                 msg->data, msg->sesskey_len);
                 }
                 pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
@@ -864,28 +815,12 @@ ssetup_ntlmssp_authenticate:
                         if (phase == NtLmNegotiate) {
                                 setup_ntlmssp_neg_req(pSMB, ses);
                                 iov[1].iov_len = sizeof(NEGOTIATE_MESSAGE);
-                                iov[1].iov_base = &pSMB->req.SecurityBlob[0];
                         } else if (phase == NtLmAuthenticate) {
                                 int blob_len;
-                                char *ntlmsspblob;
-
-                                ntlmsspblob = kmalloc(5 *
-                                        sizeof(struct _AUTHENTICATE_MESSAGE),
-                                        GFP_KERNEL);
-                                if (!ntlmsspblob) {
-                                        cERROR(1, "Can't allocate NTLMSSP");
-                                        rc = -ENOMEM;
-                                        goto ssetup_exit;
-                                }
-
-                                blob_len = setup_ntlmssp_auth_req(ntlmsspblob,
-                                                                ses,
-                                                                nls_cp,
-                                                                first_time);
+                                blob_len = setup_ntlmssp_auth_req(pSMB, ses,
+                                                                  nls_cp,
+                                                                  first_time);
                                 iov[1].iov_len = blob_len;
-                                iov[1].iov_base = ntlmsspblob;
-                                pSMB->req.SecurityBlobLength =
-                                        cpu_to_le16(blob_len);
                                 /* Make sure that we tell the server that we
                                    are using the uid that it just gave us back
                                    on the response (challenge) */
@@ -895,6 +830,7 @@ ssetup_ntlmssp_authenticate:
                                 rc = -ENOSYS;
                                 goto ssetup_exit;
                         }
+                        iov[1].iov_base = &pSMB->req.SecurityBlob[0];
                         /* unicode strings must be word aligned */
                         if ((iov[0].iov_len + iov[1].iov_len) % 2) {
                                 *bcc_ptr = 0;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index e0588cdf4cc5..82f78c4d6978 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -543,7 +543,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
                     (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
                                              SECMODE_SIGN_ENABLED))) {
                         rc = cifs_verify_signature(midQ->resp_buf,
-                                                ses->server,
+                                                &ses->server->mac_signing_key,
                                                 midQ->sequence_number+1);
                         if (rc) {
                                 cERROR(1, "Unexpected SMB signature");
@@ -731,7 +731,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
                     (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
                                              SECMODE_SIGN_ENABLED))) {
                         rc = cifs_verify_signature(out_buf,
-                                                ses->server,
+                                                &ses->server->mac_signing_key,
                                                 midQ->sequence_number+1);
                         if (rc) {
                                 cERROR(1, "Unexpected SMB signature");
@@ -981,7 +981,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
             (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
                                      SECMODE_SIGN_ENABLED))) {
                 rc = cifs_verify_signature(out_buf,
-                                           ses->server,
+                                           &ses->server->mac_signing_key,
                                            midQ->sequence_number+1);
                 if (rc) {
                         cERROR(1, "Unexpected SMB signature");
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index de89645777c7..116af7546cf0 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -184,8 +184,8 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
         }
 
         /* adjust outsize. is this useful ?? */
-        req->uc_outSize = nbytes;       
-        req->uc_flags |= REQ_WRITE;
+        req->uc_outSize = nbytes;
+        req->uc_flags |= CODA_REQ_WRITE;
         count = nbytes;
 
         /* Convert filedescriptor into a file handle */
diff --git a/fs/compat.c b/fs/compat.c
index 718c7062aec1..0644a154672b 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1153,7 +1153,7 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 {
         compat_ssize_t tot_len;
         struct iovec iovstack[UIO_FASTIOV];
-        struct iovec *iov;
+        struct iovec *iov = iovstack;
         ssize_t ret;
         io_fn_t fn;
         iov_fn_t fnv;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 51f270b479b6..48d74c7391d1 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -634,7 +634,7 @@ static int dio_send_cur_page(struct dio *dio)
         int ret = 0;
 
         if (dio->bio) {
-                loff_t cur_offset = dio->block_in_file << dio->blkbits;
+                loff_t cur_offset = dio->cur_page_fs_offset;
                 loff_t bio_next_offset = dio->logical_offset_in_bio +
                         dio->bio->bi_size;
 
@@ -659,7 +659,7 @@ static int dio_send_cur_page(struct dio *dio)
                  * Submit now if the underlying fs is about to perform a
                  * metadata read
                  */
-                if (dio->boundary)
+                else if (dio->boundary)
                         dio_bio_submit(dio);
         }
 
diff --git a/fs/exec.c b/fs/exec.c
index 2d9455282744..828dd2461d6b 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -376,6 +376,9 @@ static int count(const char __user * const __user * argv, int max)
                         argv++;
                         if (i++ >= max)
                                 return -E2BIG;
+
+                        if (fatal_signal_pending(current))
+                                return -ERESTARTNOHAND;
                         cond_resched();
                 }
         }
@@ -419,6 +422,12 @@ static int copy_strings(int argc, const char __user *const __user *argv,
                 while (len > 0) {
                         int offset, bytes_to_copy;
 
+                        if (fatal_signal_pending(current)) {
+                                ret = -ERESTARTNOHAND;
+                                goto out;
+                        }
+                        cond_resched();
+
                         offset = pos % PAGE_SIZE;
                         if (offset == 0)
                                 offset = PAGE_SIZE;
@@ -594,6 +603,11 @@ int setup_arg_pages(struct linux_binprm *bprm,
 #else
         stack_top = arch_align_stack(stack_top);
         stack_top = PAGE_ALIGN(stack_top);
+
+        if (unlikely(stack_top < mmap_min_addr) ||
+            unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
+                return -ENOMEM;
+
         stack_shift = vma->vm_end - stack_top;
 
         bprm->p -= stack_shift;
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 6769fd0f35b8..f8cc34f542c3 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -769,11 +769,15 @@ EXPORT_SYMBOL(kill_fasync);
 
 static int __init fcntl_init(void)
 {
-        /* please add new bits here to ensure allocation uniqueness */
-        BUILD_BUG_ON(19 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
+        /*
+         * Please add new bits here to ensure allocation uniqueness.
+         * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY
+         * is defined as O_NONBLOCK on some platforms and not on others.
+         */
+        BUILD_BUG_ON(18 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
                 O_RDONLY        | O_WRONLY      | O_RDWR        |
                 O_CREAT         | O_EXCL        | O_NOCTTY      |
-                O_TRUNC         | O_APPEND      | O_NONBLOCK    |
+                O_TRUNC         | O_APPEND      | /* O_NONBLOCK | */
                 __O_SYNC        | O_DSYNC       | FASYNC        |
                 O_DIRECT        | O_LARGEFILE   | O_DIRECTORY   |
                 O_NOFOLLOW      | O_NOATIME     | O_CLOEXEC     |
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 7d9d06ba184b..5581122bd2c0 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -52,8 +52,6 @@ struct wb_writeback_work {
 #define CREATE_TRACE_POINTS
 #include <trace/events/writeback.h>
 
-#define inode_to_bdi(inode)     ((inode)->i_mapping->backing_dev_info)
-
 /*
  * We don't actually have pdflush, but this one is exported though /proc...
  */
@@ -71,6 +69,27 @@ int writeback_in_progress(struct backing_dev_info *bdi)
         return test_bit(BDI_writeback_running, &bdi->state);
 }
 
+static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
+{
+        struct super_block *sb = inode->i_sb;
+        struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
+
+        /*
+         * For inodes on standard filesystems, we use superblock's bdi. For
+         * inodes on virtual filesystems, we want to use inode mapping's bdi
+         * because they can possibly point to something useful (think about
+         * block_dev filesystem).
+         */
+        if (sb->s_bdi && sb->s_bdi != &noop_backing_dev_info) {
+                /* Some device inodes could play dirty tricks. Catch them... */
+                WARN(bdi != sb->s_bdi && bdi_cap_writeback_dirty(bdi),
+                        "Dirtiable inode bdi %s != sb bdi %s\n",
+                        bdi->name, sb->s_bdi->name);
+                return sb->s_bdi;
+        }
+        return bdi;
+}
+
 static void bdi_queue_work(struct backing_dev_info *bdi,
                 struct wb_writeback_work *work)
 {
@@ -808,7 +827,7 @@ int bdi_writeback_thread(void *data)
                         wb->last_active = jiffies;
 
                 set_current_state(TASK_INTERRUPTIBLE);
-                if (!list_empty(&bdi->work_list)) {
+                if (!list_empty(&bdi->work_list) || kthread_should_stop()) {
                         __set_current_state(TASK_RUNNING);
                         continue;
                 }
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 69ad053ffd78..d367af1514ef 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -276,7 +276,7 @@ static void flush_bg_queue(struct fuse_conn *fc)
  * Called with fc->lock, unlocks it
  */
 static void request_end(struct fuse_conn *fc, struct fuse_req *req)
-__releases(&fc->lock)
+__releases(fc->lock)
 {
         void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
         req->end = NULL;
@@ -306,8 +306,8 @@ __releases(&fc->lock)
 
 static void wait_answer_interruptible(struct fuse_conn *fc,
                                       struct fuse_req *req)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         if (signal_pending(current))
                 return;
@@ -325,8 +325,8 @@ static void queue_interrupt(struct fuse_conn *fc, struct fuse_req *req)
 }
 
 static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         if (!fc->no_interrupt) {
                 /* Any signal may interrupt this */
@@ -905,8 +905,8 @@ static int request_pending(struct fuse_conn *fc)
 
 /* Wait until a request is available on the pending list */
 static void request_wait(struct fuse_conn *fc)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         DECLARE_WAITQUEUE(wait, current);
 
@@ -934,7 +934,7 @@ __acquires(&fc->lock)
  */
 static int fuse_read_interrupt(struct fuse_conn *fc, struct fuse_copy_state *cs,
                                size_t nbytes, struct fuse_req *req)
-__releases(&fc->lock)
+__releases(fc->lock)
 {
         struct fuse_in_header ih;
         struct fuse_interrupt_in arg;
@@ -1720,8 +1720,8 @@ static unsigned fuse_dev_poll(struct file *file, poll_table *wait)
  * This function releases and reacquires fc->lock
  */
 static void end_requests(struct fuse_conn *fc, struct list_head *head)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         while (!list_empty(head)) {
                 struct fuse_req *req;
@@ -1744,8 +1744,8 @@ __acquires(&fc->lock)
  * locked).
  */
 static void end_io_requests(struct fuse_conn *fc)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         while (!list_empty(&fc->io)) {
                 struct fuse_req *req =
@@ -1769,6 +1769,16 @@ __acquires(&fc->lock)
         }
 }
 
+static void end_queued_requests(struct fuse_conn *fc)
+__releases(fc->lock)
+__acquires(fc->lock)
+{
+        fc->max_background = UINT_MAX;
+        flush_bg_queue(fc);
+        end_requests(fc, &fc->pending);
+        end_requests(fc, &fc->processing);
+}
+
 /*
  * Abort all requests.
  *
@@ -1795,8 +1805,7 @@ void fuse_abort_conn(struct fuse_conn *fc)
                 fc->connected = 0;
                 fc->blocked = 0;
                 end_io_requests(fc);
-                end_requests(fc, &fc->pending);
-                end_requests(fc, &fc->processing);
+                end_queued_requests(fc);
                 wake_up_all(&fc->waitq);
                 wake_up_all(&fc->blocked_waitq);
                 kill_fasync(&fc->fasync, SIGIO, POLL_IN);
@@ -1811,8 +1820,9 @@ int fuse_dev_release(struct inode *inode, struct file *file)
         if (fc) {
                 spin_lock(&fc->lock);
                 fc->connected = 0;
-                end_requests(fc, &fc->pending);
-                end_requests(fc, &fc->processing);
+                fc->blocked = 0;
+                end_queued_requests(fc);
+                wake_up_all(&fc->blocked_waitq);
                 spin_unlock(&fc->lock);
                 fuse_conn_put(fc);
         }
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 147c1f71bdb9..c8224587123f 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1144,8 +1144,8 @@ static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
 
 /* Called under fc->lock, may release and reacquire it */
 static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         struct fuse_inode *fi = get_fuse_inode(req->inode);
         loff_t size = i_size_read(req->inode);
@@ -1183,8 +1183,8 @@ __acquires(&fc->lock)
  * Called with fc->lock
  */
 void fuse_flush_writepages(struct inode *inode)
-__releases(&fc->lock)
-__acquires(&fc->lock)
+__releases(fc->lock)
+__acquires(fc->lock)
 {
         struct fuse_conn *fc = get_fuse_conn(inode);
         struct fuse_inode *fi = get_fuse_inode(inode);
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index cde1248a6225..ac750bd31a6f 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -932,7 +932,7 @@ int gfs2_logd(void *data)
 
                 do {
                         prepare_to_wait(&sdp->sd_logd_waitq, &wait,
-                                        TASK_UNINTERRUPTIBLE);
+                                        TASK_INTERRUPTIBLE);
                         if (!gfs2_ail_flush_reqd(sdp) &&
                             !gfs2_jrnl_flush_reqd(sdp) &&
                             !kthread_should_stop())
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index e20ee85955d1..f3f3578393a4 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -115,7 +115,7 @@ static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
 
         inode_inc_link_count(dir);
 
-        inode = minix_new_inode(dir, mode, &err);
+        inode = minix_new_inode(dir, S_IFDIR | mode, &err);
         if (!inode)
                 goto out_dir;
 
diff --git a/fs/namespace.c b/fs/namespace.c
index de402eb6eafb..a72eaabfe8f2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1484,13 +1484,30 @@ out_unlock:
 }
 
 /*
+ * Sanity check the flags to change_mnt_propagation.
+ */
+
+static int flags_to_propagation_type(int flags)
+{
+        int type = flags & ~MS_REC;
+
+        /* Fail if any non-propagation flags are set */
+        if (type & ~(MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
+                return 0;
+        /* Only one propagation flag should be set */
+        if (!is_power_of_2(type))
+                return 0;
+        return type;
+}
+
+/*
  * recursively change the type of the mountpoint.
  */
 static int do_change_type(struct path *path, int flag)
 {
         struct vfsmount *m, *mnt = path->mnt;
         int recurse = flag & MS_REC;
-        int type = flag & ~MS_REC;
+        int type;
         int err = 0;
 
         if (!capable(CAP_SYS_ADMIN))
@@ -1499,6 +1516,10 @@ static int do_change_type(struct path *path, int flag)
         if (path->dentry != path->mnt->mnt_root)
                 return -EINVAL;
 
+        type = flags_to_propagation_type(flag);
+        if (!type)
+                return -EINVAL;
+
         down_write(&namespace_sem);
         if (type == MS_SHARED) {
                 err = invent_group_ids(mnt, recurse);
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 6c2aad49d731..f7e13db613cb 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -63,6 +63,7 @@ config NFS_V3_ACL
 config NFS_V4
         bool "NFS client support for NFS version 4"
         depends on NFS_FS
+        select SUNRPC_GSS
         help
           This option enables support for version 4 of the NFS protocol
           (RFC 3530) in the kernel's NFS client.
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 4e7df2adb212..e7340729af89 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -275,7 +275,7 @@ static int nfs_sockaddr_match_ipaddr6(const struct sockaddr *sa1,
             sin1->sin6_scope_id != sin2->sin6_scope_id)
                 return 0;
 
-        return ipv6_addr_equal(&sin1->sin6_addr, &sin1->sin6_addr);
+        return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
 }
 #else   /* !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE) */
 static int nfs_sockaddr_match_ipaddr6(const struct sockaddr *sa1,
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index eb51bd6201da..05bf3c0dc751 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -723,10 +723,6 @@ static int do_vfs_lock(struct file *file, struct file_lock *fl)
                 default:
                         BUG();
         }
-        if (res < 0)
-                dprintk(KERN_WARNING "%s: VFS is out of sync with lock manager"
-                        " - error %d!\n",
-                                __func__, res);
         return res;
 }
 
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ec3966e4706b..f4cbf0c306c6 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -431,7 +431,15 @@ static int nfs_statfs(struct dentry *dentry, struct kstatfs *buf)
                 goto out_err;
 
         error = server->nfs_client->rpc_ops->statfs(server, fh, &res);
+        if (unlikely(error == -ESTALE)) {
+                struct dentry *pd_dentry;
 
+                pd_dentry = dget_parent(dentry);
+                if (pd_dentry != NULL) {
+                        nfs_zap_caches(pd_dentry->d_inode);
+                        dput(pd_dentry);
+                }
+        }
         nfs_free_fattr(res.fattr);
         if (error < 0)
                 goto out_err;
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 95932f523aef..4264377552e2 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -69,6 +69,7 @@ config NFSD_V4
         depends on NFSD && PROC_FS && EXPERIMENTAL
         select NFSD_V3
         select FS_POSIX_ACL
+        select SUNRPC_GSS
         help
           This option enables support in your system's NFS server for
           version 4 of the NFS protocol (RFC 3530).
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3dfef0623968..cf0d2ffb3c84 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -440,7 +440,7 @@ test_share(struct nfs4_stateid *stp, struct nfsd4_open *open) {
 
 static int nfs4_access_to_omode(u32 access)
 {
-        switch (access) {
+        switch (access & NFS4_SHARE_ACCESS_BOTH) {
         case NFS4_SHARE_ACCESS_READ:
                 return O_RDONLY;
         case NFS4_SHARE_ACCESS_WRITE:
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 4317f177ea7c..ba7c10c917fc 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -446,6 +446,7 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
         nilfs_mdt_destroy(nilfs->ns_cpfile);
         nilfs_mdt_destroy(nilfs->ns_sufile);
         nilfs_mdt_destroy(nilfs->ns_dat);
+        nilfs_mdt_destroy(nilfs->ns_gc_dat);
 
  failed:
         nilfs_clear_recovery_info(&ri);
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index a76e0aa5cd3f..391915093fe1 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -209,7 +209,10 @@ static int ocfs2_acl_set_mode(struct inode *inode, struct buffer_head *di_bh,
         }
 
         inode->i_mode = new_mode;
+        inode->i_ctime = CURRENT_TIME;
         di->i_mode = cpu_to_le16(inode->i_mode);
+        di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
+        di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
 
         ocfs2_journal_dirty(handle, di_bh);
 
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 215e12ce1d85..592fae5007d1 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6672,7 +6672,7 @@ int ocfs2_grab_pages(struct inode *inode, loff_t start, loff_t end,
         last_page_bytes = PAGE_ALIGN(end);
         index = start >> PAGE_CACHE_SHIFT;
         do {
-                pages[numpages] = grab_cache_page(mapping, index);
+                pages[numpages] = find_or_create_page(mapping, index, GFP_NOFS);
                 if (!pages[numpages]) {
                         ret = -ENOMEM;
                         mlog_errno(ret);
diff --git a/fs/ocfs2/blockcheck.c b/fs/ocfs2/blockcheck.c
index ec6d12339593..c7ee03c22226 100644
--- a/fs/ocfs2/blockcheck.c
+++ b/fs/ocfs2/blockcheck.c
@@ -439,7 +439,7 @@ int ocfs2_block_check_validate(void *data, size_t blocksize,
 
         ocfs2_blockcheck_inc_failure(stats);
         mlog(ML_ERROR,
-             "CRC32 failed: stored: %u, computed %u.  Applying ECC.\n",
+             "CRC32 failed: stored: 0x%x, computed 0x%x. Applying ECC.\n",
              (unsigned int)check.bc_crc32e, (unsigned int)crc);
 
         /* Ok, try ECC fixups */
@@ -453,7 +453,7 @@ int ocfs2_block_check_validate(void *data, size_t blocksize,
                 goto out;
         }
 
-        mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n",
+        mlog(ML_ERROR, "Fixed CRC32 failed: stored: 0x%x, computed 0x%x\n",
              (unsigned int)check.bc_crc32e, (unsigned int)crc);
 
         rc = -EIO;
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1361997cf205..cbe2f057cc28 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -977,7 +977,7 @@ static int o2net_tx_can_proceed(struct o2net_node *nn,
 int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec,
                            size_t caller_veclen, u8 target_node, int *status)
 {
-        int ret;
+        int ret = 0;
         struct o2net_msg *msg = NULL;
         size_t veclen, caller_bytes = 0;
         struct kvec *vec = NULL;
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index f04ebcfffc4a..c49f6de0e7ab 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -3931,6 +3931,15 @@ static int ocfs2_dx_dir_rebalance(struct ocfs2_super *osb, struct inode *dir,
                 goto out_commit;
         }
 
+        cpos = split_hash;
+        ret = ocfs2_dx_dir_new_cluster(dir, &et, cpos, handle,
+                                       data_ac, meta_ac, new_dx_leaves,
+                                       num_dx_leaves);
+        if (ret) {
+                mlog_errno(ret);
+                goto out_commit;
+        }
+
         for (i = 0; i < num_dx_leaves; i++) {
                 ret = ocfs2_journal_access_dl(handle, INODE_CACHE(dir),
                                               orig_dx_leaves[i],
@@ -3939,15 +3948,14 @@ static int ocfs2_dx_dir_rebalance(struct ocfs2_super *osb, struct inode *dir,
                         mlog_errno(ret);
                         goto out_commit;
                 }
-        }
 
-        cpos = split_hash;
-        ret = ocfs2_dx_dir_new_cluster(dir, &et, cpos, handle,
-                                       data_ac, meta_ac, new_dx_leaves,
-                                       num_dx_leaves);
-        if (ret) {
-                mlog_errno(ret);
-                goto out_commit;
+                ret = ocfs2_journal_access_dl(handle, INODE_CACHE(dir),
+                                              new_dx_leaves[i],
+                                              OCFS2_JOURNAL_ACCESS_WRITE);
+                if (ret) {
+                        mlog_errno(ret);
+                        goto out_commit;
+                }
         }
 
         ocfs2_dx_dir_transfer_leaf(dir, split_hash, handle, tmp_dx_leaf,
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 4b6ae2c13b47..765298908f1d 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -1030,6 +1030,7 @@ int dlm_drop_lockres_ref(struct dlm_ctxt *dlm,
                          struct dlm_lock_resource *res);
 void dlm_clean_master_list(struct dlm_ctxt *dlm,
                            u8 dead_node);
+void dlm_force_free_mles(struct dlm_ctxt *dlm);
 int dlm_lock_basts_flushed(struct dlm_ctxt *dlm, struct dlm_lock *lock);
 int __dlm_lockres_has_locks(struct dlm_lock_resource *res);
 int __dlm_lockres_unused(struct dlm_lock_resource *res);
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index 5efdd37dfe48..901ca52bf86b 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -636,8 +636,14 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
         spin_lock(&dlm->track_lock);
         if (oldres)
                 track_list = &oldres->tracking;
-        else
+        else {
                 track_list = &dlm->tracking_list;
+                if (list_empty(track_list)) {
+                        dl = NULL;
+                        spin_unlock(&dlm->track_lock);
+                        goto bail;
+                }
+        }
 
         list_for_each_entry(res, track_list, tracking) {
                 if (&res->tracking == &dlm->tracking_list)
@@ -660,6 +666,7 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
         } else
                 dl = NULL;
 
+bail:
         /* passed to seq_show */
         return dl;
 }
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 153abb5abef0..11a5c87fd7f7 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -693,6 +693,7 @@ void dlm_unregister_domain(struct dlm_ctxt *dlm)
 
                 dlm_mark_domain_leaving(dlm);
                 dlm_leave_domain(dlm);
+                dlm_force_free_mles(dlm);
                 dlm_complete_dlm_shutdown(dlm);
         }
         dlm_put(dlm);
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index ffb4c68dafa4..f564b0e5f80d 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -3433,3 +3433,43 @@ void dlm_lockres_release_ast(struct dlm_ctxt *dlm,
         wake_up(&res->wq);
         wake_up(&dlm->migration_wq);
 }
+
+void dlm_force_free_mles(struct dlm_ctxt *dlm)
+{
+        int i;
+        struct hlist_head *bucket;
+        struct dlm_master_list_entry *mle;
+        struct hlist_node *tmp, *list;
+
+        /*
+         * We notified all other nodes that we are exiting the domain and
+         * marked the dlm state to DLM_CTXT_LEAVING. If any mles are still
+         * around we force free them and wake any processes that are waiting
+         * on the mles
+         */
+        spin_lock(&dlm->spinlock);
+        spin_lock(&dlm->master_lock);
+
+        BUG_ON(dlm->dlm_state != DLM_CTXT_LEAVING);
+        BUG_ON((find_next_bit(dlm->domain_map, O2NM_MAX_NODES, 0) < O2NM_MAX_NODES));
+
+        for (i = 0; i < DLM_HASH_BUCKETS; i++) {
+                bucket = dlm_master_hash(dlm, i);
+                hlist_for_each_safe(list, tmp, bucket) {
+                        mle = hlist_entry(list, struct dlm_master_list_entry,
+                                          master_hash_node);
+                        if (mle->type != DLM_MLE_BLOCK) {
+                                mlog(ML_ERROR, "bad mle: %p\n", mle);
+                                dlm_print_one_mle(mle);
+                        }
+                        atomic_set(&mle->woken, 1);
+                        wake_up(&mle->wq);
+
+                        __dlm_unlink_mle(dlm, mle);
+                        __dlm_mle_detach_hb_events(dlm, mle);
+                        __dlm_put_mle(mle);
+                }
+        }
+        spin_unlock(&dlm->master_lock);
+        spin_unlock(&dlm->spinlock);
+}
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index d1ce48e1b3d6..1d596d8c4a4a 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -84,6 +84,7 @@ enum {
         OI_LS_PARENT,
         OI_LS_RENAME1,
         OI_LS_RENAME2,
+        OI_LS_REFLINK_TARGET,
 };
 
 int ocfs2_dlm_init(struct ocfs2_super *osb);
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 81296b4e3646..9a03c151b5ce 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -36,6 +36,7 @@
 #include <linux/writeback.h>
 #include <linux/falloc.h>
 #include <linux/quotaops.h>
+#include <linux/blkdev.h>
 
 #define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
@@ -190,8 +191,16 @@ static int ocfs2_sync_file(struct file *file, int datasync)
         if (err)
                 goto bail;
 
-        if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+        if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) {
+                /*
+                 * We still have to flush drive's caches to get data to the
+                 * platter
+                 */
+                if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER)
+                        blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL,
+                                           NULL, BLKDEV_IFL_WAIT);
                 goto bail;
+        }
 
         journal = osb->journal->j_journal;
         err = jbd2_journal_force_commit(journal);
@@ -774,7 +783,7 @@ static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from,
         BUG_ON(abs_to > (((u64)index + 1) << PAGE_CACHE_SHIFT));
         BUG_ON(abs_from & (inode->i_blkbits - 1));
 
-        page = grab_cache_page(mapping, index);
+        page = find_or_create_page(mapping, index, GFP_NOFS);
         if (!page) {
                 ret = -ENOMEM;
                 mlog_errno(ret);
@@ -2329,7 +2338,7 @@ out_dio:
         BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT));
 
         if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) ||
-            ((file->f_flags & O_DIRECT) && has_refcount)) {
+            ((file->f_flags & O_DIRECT) && !direct_io)) {
                 ret = filemap_fdatawrite_range(file->f_mapping, pos,
                                                pos + count - 1);
                 if (ret < 0)
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 0492464916b1..eece3e05d9d0 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -488,7 +488,11 @@ static int ocfs2_read_locked_inode(struct inode *inode,
                                                      OCFS2_BH_IGNORE_CACHE);
         } else {
                 status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh);
-                if (!status)
+                /*
+                 * If buffer is in jbd, then its checksum may not have been
+                 * computed as yet.
+                 */
+                if (!status && !buffer_jbd(bh))
                         status = ocfs2_validate_inode_block(osb->sb, bh);
         }
         if (status < 0) {
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index af2b8fe1f139..4c18f4ad93b4 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -74,9 +74,11 @@ static int __ocfs2_page_mkwrite(struct inode *inode, struct buffer_head *di_bh,
         /*
          * Another node might have truncated while we were waiting on
          * cluster locks.
+         * We don't check size == 0 before the shift. This is borrowed
+         * from do_generic_file_read.
          */
-        last_index = size >> PAGE_CACHE_SHIFT;
-        if (page->index > last_index) {
+        last_index = (size - 1) >> PAGE_CACHE_SHIFT;
+        if (unlikely(!size || page->index > last_index)) {
                 ret = -EINVAL;
                 goto out;
         }
@@ -107,7 +109,7 @@ static int __ocfs2_page_mkwrite(struct inode *inode, struct buffer_head *di_bh,
          * because the "write" would invalidate their data.
          */
         if (page->index == last_index)
-                len = size & ~PAGE_CACHE_MASK;
+                len = ((size - 1) & ~PAGE_CACHE_MASK) + 1;
 
         ret = ocfs2_write_begin_nolock(mapping, pos, len, 0, &locked_page,
                                        &fsdata, di_bh, page);
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index f171b51a74f7..a00dda2e4f16 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -472,32 +472,23 @@ leave:
         return status;
 }
 
-static int ocfs2_mknod_locked(struct ocfs2_super *osb,
-                              struct inode *dir,
-                              struct inode *inode,
-                              dev_t dev,
-                              struct buffer_head **new_fe_bh,
-                              struct buffer_head *parent_fe_bh,
-                              handle_t *handle,
-                              struct ocfs2_alloc_context *inode_ac)
+static int __ocfs2_mknod_locked(struct inode *dir,
+                                struct inode *inode,
+                                dev_t dev,
+                                struct buffer_head **new_fe_bh,
+                                struct buffer_head *parent_fe_bh,
+                                handle_t *handle,
+                                struct ocfs2_alloc_context *inode_ac,
+                                u64 fe_blkno, u64 suballoc_loc, u16 suballoc_bit)
 {
         int status = 0;
+        struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
         struct ocfs2_dinode *fe = NULL;
         struct ocfs2_extent_list *fel;
-        u64 suballoc_loc, fe_blkno = 0;
-        u16 suballoc_bit;
         u16 feat;
 
         *new_fe_bh = NULL;
 
-        status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh,
-                                       inode_ac, &suballoc_loc,
-                                       &suballoc_bit, &fe_blkno);
-        if (status < 0) {
-                mlog_errno(status);
-                goto leave;
-        }
-
         /* populate as many fields early on as possible - many of
          * these are used by the support functions here and in
          * callers. */
@@ -591,6 +582,34 @@ leave:
         return status;
 }
 
+static int ocfs2_mknod_locked(struct ocfs2_super *osb,
+                              struct inode *dir,
+                              struct inode *inode,
+                              dev_t dev,
+                              struct buffer_head **new_fe_bh,
+                              struct buffer_head *parent_fe_bh,
+                              handle_t *handle,
+                              struct ocfs2_alloc_context *inode_ac)
+{
+        int status = 0;
+        u64 suballoc_loc, fe_blkno = 0;
+        u16 suballoc_bit;
+
+        *new_fe_bh = NULL;
+
+        status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh,
+                                       inode_ac, &suballoc_loc,
+                                       &suballoc_bit, &fe_blkno);
+        if (status < 0) {
+                mlog_errno(status);
+                return status;
+        }
+
+        return __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh,
+                                    parent_fe_bh, handle, inode_ac,
+                                    fe_blkno, suballoc_loc, suballoc_bit);
+}
+
 static int ocfs2_mkdir(struct inode *dir,
                        struct dentry *dentry,
                        int mode)
@@ -1852,61 +1871,117 @@ bail:
         return status;
 }
 
-static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
-                                    struct inode **ret_orphan_dir,
-                                    u64 blkno,
-                                    char *name,
-                                    struct ocfs2_dir_lookup_result *lookup)
+static int ocfs2_lookup_lock_orphan_dir(struct ocfs2_super *osb,
+                                        struct inode **ret_orphan_dir,
+                                        struct buffer_head **ret_orphan_dir_bh)
 {
         struct inode *orphan_dir_inode;
         struct buffer_head *orphan_dir_bh = NULL;
-        int status = 0;
-
-        status = ocfs2_blkno_stringify(blkno, name);
-        if (status < 0) {
-                mlog_errno(status);
-                return status;
-        }
+        int ret = 0;
 
         orphan_dir_inode = ocfs2_get_system_file_inode(osb,
                                                        ORPHAN_DIR_SYSTEM_INODE,
                                                        osb->slot_num);
         if (!orphan_dir_inode) {
-                status = -ENOENT;
-                mlog_errno(status);
-                return status;
+                ret = -ENOENT;
+                mlog_errno(ret);
+                return ret;
         }
 
         mutex_lock(&orphan_dir_inode->i_mutex);
 
-        status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
-        if (status < 0) {
-                mlog_errno(status);
-                goto leave;
+        ret = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
+        if (ret < 0) {
+                mutex_unlock(&orphan_dir_inode->i_mutex);
+                iput(orphan_dir_inode);
+
+                mlog_errno(ret);
+                return ret;
         }
 
-        status = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode,
-                                              orphan_dir_bh, name,
-                                              OCFS2_ORPHAN_NAMELEN, lookup);
-        if (status < 0) {
-                ocfs2_inode_unlock(orphan_dir_inode, 1);
+        *ret_orphan_dir = orphan_dir_inode;
+        *ret_orphan_dir_bh = orphan_dir_bh;
 
-                mlog_errno(status);
-                goto leave;
+        return 0;
+}
+
+static int __ocfs2_prepare_orphan_dir(struct inode *orphan_dir_inode,
+                                      struct buffer_head *orphan_dir_bh,
+                                      u64 blkno,
+                                      char *name,
+                                      struct ocfs2_dir_lookup_result *lookup)
+{
+        int ret;
+        struct ocfs2_super *osb = OCFS2_SB(orphan_dir_inode->i_sb);
+
+        ret = ocfs2_blkno_stringify(blkno, name);
+        if (ret < 0) {
+                mlog_errno(ret);
+                return ret;
+        }
+
+        ret = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode,
+                                           orphan_dir_bh, name,
+                                           OCFS2_ORPHAN_NAMELEN, lookup);
+        if (ret < 0) {
+                mlog_errno(ret);
+                return ret;
+        }
+
+        return 0;
+}
+
+/**
+ * ocfs2_prepare_orphan_dir() - Prepare an orphan directory for
+ * insertion of an orphan.
+ * @osb: ocfs2 file system
+ * @ret_orphan_dir: Orphan dir inode - returned locked!
+ * @blkno: Actual block number of the inode to be inserted into orphan dir.
+ * @lookup: dir lookup result, to be passed back into functions like
+ *          ocfs2_orphan_add
+ *
+ * Returns zero on success and the ret_orphan_dir, name and lookup
+ * fields will be populated.
+ *
+ * Returns non-zero on failure. 
+ */
+static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
+                                    struct inode **ret_orphan_dir,
+                                    u64 blkno,
+                                    char *name,
+                                    struct ocfs2_dir_lookup_result *lookup)
+{
+        struct inode *orphan_dir_inode = NULL;
+        struct buffer_head *orphan_dir_bh = NULL;
+        int ret = 0;
+
+        ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir_inode,
+                                           &orphan_dir_bh);
+        if (ret < 0) {
+                mlog_errno(ret);
+                return ret;
+        }
+
+        ret = __ocfs2_prepare_orphan_dir(orphan_dir_inode, orphan_dir_bh,
+                                         blkno, name, lookup);
+        if (ret < 0) {
+                mlog_errno(ret);
+                goto out;
         }
 
         *ret_orphan_dir = orphan_dir_inode;
 
-leave:
-        if (status) {
+out:
+        brelse(orphan_dir_bh);
+
+        if (ret) {
+                ocfs2_inode_unlock(orphan_dir_inode, 1);
                 mutex_unlock(&orphan_dir_inode->i_mutex);
                 iput(orphan_dir_inode);
         }
 
-        brelse(orphan_dir_bh);
-
-        mlog_exit(status);
-        return status;
+        mlog_exit(ret);
+        return ret;
 }
 
 static int ocfs2_orphan_add(struct ocfs2_super *osb,
@@ -2053,6 +2128,99 @@ leave:
         return status;
 }
 
+/**
+ * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to recieve a newly
+ * allocated file. This is different from the typical 'add to orphan dir'
+ * operation in that the inode does not yet exist. This is a problem because
+ * the orphan dir stringifies the inode block number to come up with it's
+ * dirent. Obviously if the inode does not yet exist we have a chicken and egg
+ * problem. This function works around it by calling deeper into the orphan
+ * and suballoc code than other callers. Use this only by necessity.
+ * @dir: The directory which this inode will ultimately wind up under - not the
+ * orphan dir!
+ * @dir_bh: buffer_head the @dir inode block
+ * @orphan_name: string of length (CFS2_ORPHAN_NAMELEN + 1). Will be filled
+ * with the string to be used for orphan dirent. Pass back to the orphan dir
+ * code.
+ * @ret_orphan_dir: orphan dir inode returned to be passed back into orphan
+ * dir code.
+ * @ret_di_blkno: block number where the new inode will be allocated.
+ * @orphan_insert: Dir insert context to be passed back into orphan dir code.
+ * @ret_inode_ac: Inode alloc context to be passed back to the allocator.
+ *
+ * Returns zero on success and the ret_orphan_dir, name and lookup
+ * fields will be populated.
+ *
+ * Returns non-zero on failure. 
+ */
+static int ocfs2_prep_new_orphaned_file(struct inode *dir,
+                                        struct buffer_head *dir_bh,
+                                        char *orphan_name,
+                                        struct inode **ret_orphan_dir,
+                                        u64 *ret_di_blkno,
+                                        struct ocfs2_dir_lookup_result *orphan_insert,
+                                        struct ocfs2_alloc_context **ret_inode_ac)
+{
+        int ret;
+        u64 di_blkno;
+        struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+        struct inode *orphan_dir = NULL;
+        struct buffer_head *orphan_dir_bh = NULL;
+        struct ocfs2_alloc_context *inode_ac = NULL;
+
+        ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir, &orphan_dir_bh);
+        if (ret < 0) {
+                mlog_errno(ret);
+                return ret;
+        }
+
+        /* reserve an inode spot */
+        ret = ocfs2_reserve_new_inode(osb, &inode_ac);
+        if (ret < 0) {
+                if (ret != -ENOSPC)
+                        mlog_errno(ret);
+                goto out;
+        }
+
+        ret = ocfs2_find_new_inode_loc(dir, dir_bh, inode_ac,
+                                       &di_blkno);
+        if (ret) {
+                mlog_errno(ret);
+                goto out;
+        }
+
+        ret = __ocfs2_prepare_orphan_dir(orphan_dir, orphan_dir_bh,
+                                         di_blkno, orphan_name, orphan_insert);
+        if (ret < 0) {
+                mlog_errno(ret);
+                goto out;
+        }
+
+out:
+        if (ret == 0) {
+                *ret_orphan_dir = orphan_dir;
+                *ret_di_blkno = di_blkno;
+                *ret_inode_ac = inode_ac;
+                /*
+                 * orphan_name and orphan_insert are already up to
+                 * date via prepare_orphan_dir
+                 */
+        } else {
+                /* Unroll reserve_new_inode* */
+                if (inode_ac)
+                        ocfs2_free_alloc_context(inode_ac);
+
+                /* Unroll orphan dir locking */
+                mutex_unlock(&orphan_dir->i_mutex);
+                ocfs2_inode_unlock(orphan_dir, 1);
+                iput(orphan_dir);
+        }
+
+        brelse(orphan_dir_bh);
+
+        return 0;
+}
+
 int ocfs2_create_inode_in_orphan(struct inode *dir,
                                  int mode,
                                  struct inode **new_inode)
@@ -2068,6 +2236,8 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
         struct buffer_head *new_di_bh = NULL;
         struct ocfs2_alloc_context *inode_ac = NULL;
         struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
+        u64 uninitialized_var(di_blkno), suballoc_loc;
+        u16 suballoc_bit;
 
         status = ocfs2_inode_lock(dir, &parent_di_bh, 1);
         if (status < 0) {
@@ -2076,20 +2246,9 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
                 return status;
         }
 
-        /*
-         * We give the orphan dir the root blkno to fake an orphan name,
-         * and allocate enough space for our insertion.
-         */
-        status = ocfs2_prepare_orphan_dir(osb, &orphan_dir,
-                                          osb->root_blkno,
-                                          orphan_name, &orphan_insert);
-        if (status < 0) {
-                mlog_errno(status);
-                goto leave;
-        }
-
-        /* reserve an inode spot */
-        status = ocfs2_reserve_new_inode(osb, &inode_ac);
+        status = ocfs2_prep_new_orphaned_file(dir, parent_di_bh,
+                                              orphan_name, &orphan_dir,
+                                              &di_blkno, &orphan_insert, &inode_ac);
         if (status < 0) {
                 if (status != -ENOSPC)
                         mlog_errno(status);
@@ -2116,17 +2275,20 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
                 goto leave;
         did_quota_inode = 1;
 
-        inode->i_nlink = 0;
-        /* do the real work now. */
-        status = ocfs2_mknod_locked(osb, dir, inode,
-                                    0, &new_di_bh, parent_di_bh, handle,
-                                    inode_ac);
+        status = ocfs2_claim_new_inode_at_loc(handle, dir, inode_ac,
+                                              &suballoc_loc,
+                                              &suballoc_bit, di_blkno);
         if (status < 0) {
                 mlog_errno(status);
                 goto leave;
         }
 
-        status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, orphan_name);
+        inode->i_nlink = 0;
+        /* do the real work now. */
+        status = __ocfs2_mknod_locked(dir, inode,
+                                      0, &new_di_bh, parent_di_bh, handle,
+                                      inode_ac, di_blkno, suballoc_loc,
+                                      suballoc_bit);
         if (status < 0) {
                 mlog_errno(status);
                 goto leave;
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 33f1c9a8258d..fa31d05e41b7 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -235,18 +235,31 @@
 #define OCFS2_HAS_REFCOUNT_FL   (0x0010)
 
 /* Inode attributes, keep in sync with EXT2 */
-#define OCFS2_SECRM_FL          (0x00000001)    /* Secure deletion */
-#define OCFS2_UNRM_FL           (0x00000002)    /* Undelete */
-#define OCFS2_COMPR_FL          (0x00000004)    /* Compress file */
-#define OCFS2_SYNC_FL           (0x00000008)    /* Synchronous updates */
-#define OCFS2_IMMUTABLE_FL      (0x00000010)    /* Immutable file */
-#define OCFS2_APPEND_FL         (0x00000020)    /* writes to file may only append */
-#define OCFS2_NODUMP_FL         (0x00000040)    /* do not dump file */
-#define OCFS2_NOATIME_FL        (0x00000080)    /* do not update atime */
-#define OCFS2_DIRSYNC_FL        (0x00010000)    /* dirsync behaviour (directories only) */
-
-#define OCFS2_FL_VISIBLE        (0x000100FF)    /* User visible flags */
-#define OCFS2_FL_MODIFIABLE     (0x000100FF)    /* User modifiable flags */
+#define OCFS2_SECRM_FL                  FS_SECRM_FL     /* Secure deletion */
+#define OCFS2_UNRM_FL                   FS_UNRM_FL      /* Undelete */
+#define OCFS2_COMPR_FL                  FS_COMPR_FL     /* Compress file */
+#define OCFS2_SYNC_FL                   FS_SYNC_FL      /* Synchronous updates */
+#define OCFS2_IMMUTABLE_FL              FS_IMMUTABLE_FL /* Immutable file */
+#define OCFS2_APPEND_FL                 FS_APPEND_FL    /* writes to file may only append */
+#define OCFS2_NODUMP_FL                 FS_NODUMP_FL    /* do not dump file */
+#define OCFS2_NOATIME_FL                FS_NOATIME_FL   /* do not update atime */
+/* Reserved for compression usage... */
+#define OCFS2_DIRTY_FL                  FS_DIRTY_FL
+#define OCFS2_COMPRBLK_FL               FS_COMPRBLK_FL  /* One or more compressed clusters */
+#define OCFS2_NOCOMP_FL                 FS_NOCOMP_FL    /* Don't compress */
+#define OCFS2_ECOMPR_FL                 FS_ECOMPR_FL    /* Compression error */
+/* End compression flags --- maybe not all used */
+#define OCFS2_BTREE_FL                  FS_BTREE_FL     /* btree format dir */
+#define OCFS2_INDEX_FL                  FS_INDEX_FL     /* hash-indexed directory */
+#define OCFS2_IMAGIC_FL                 FS_IMAGIC_FL    /* AFS directory */
+#define OCFS2_JOURNAL_DATA_FL           FS_JOURNAL_DATA_FL /* Reserved for ext3 */
+#define OCFS2_NOTAIL_FL                 FS_NOTAIL_FL    /* file tail should not be merged */
+#define OCFS2_DIRSYNC_FL                FS_DIRSYNC_FL   /* dirsync behaviour (directories only) */
+#define OCFS2_TOPDIR_FL                 FS_TOPDIR_FL    /* Top of directory hierarchies*/
+#define OCFS2_RESERVED_FL               FS_RESERVED_FL  /* reserved for ext2 lib */
+
+#define OCFS2_FL_VISIBLE                FS_FL_USER_VISIBLE      /* User visible flags */
+#define OCFS2_FL_MODIFIABLE             FS_FL_USER_MODIFIABLE   /* User modifiable flags */
 
 /*
  * Extent record flags (e_node.leaf.flags)
diff --git a/fs/ocfs2/ocfs2_ioctl.h b/fs/ocfs2/ocfs2_ioctl.h
index 2d3420af1a83..5d241505690b 100644
--- a/fs/ocfs2/ocfs2_ioctl.h
+++ b/fs/ocfs2/ocfs2_ioctl.h
@@ -23,10 +23,10 @@
 /*
  * ioctl commands
  */
-#define OCFS2_IOC_GETFLAGS      _IOR('f', 1, long)
-#define OCFS2_IOC_SETFLAGS      _IOW('f', 2, long)
-#define OCFS2_IOC32_GETFLAGS    _IOR('f', 1, int)
-#define OCFS2_IOC32_SETFLAGS    _IOW('f', 2, int)
+#define OCFS2_IOC_GETFLAGS      FS_IOC_GETFLAGS
+#define OCFS2_IOC_SETFLAGS      FS_IOC_SETFLAGS
+#define OCFS2_IOC32_GETFLAGS    FS_IOC32_GETFLAGS
+#define OCFS2_IOC32_SETFLAGS    FS_IOC32_SETFLAGS
 
 /*
  * Space reservation / allocation / free ioctls and argument structure
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 73a11ccfd4c2..efdd75607406 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -2960,7 +2960,7 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
                 if (map_end & (PAGE_CACHE_SIZE - 1))
                         to = map_end & (PAGE_CACHE_SIZE - 1);
 
-                page = grab_cache_page(mapping, page_index);
+                page = find_or_create_page(mapping, page_index, GFP_NOFS);
 
                 /*
                  * In case PAGE_CACHE_SIZE <= CLUSTER_SIZE, This page
@@ -3179,7 +3179,8 @@ static int ocfs2_cow_sync_writeback(struct super_block *sb,
                 if (map_end > end)
                         map_end = end;
 
-                page = grab_cache_page(context->inode->i_mapping, page_index);
+                page = find_or_create_page(context->inode->i_mapping,
+                                           page_index, GFP_NOFS);
                 BUG_ON(!page);
 
                 wait_on_page_writeback(page);
@@ -4200,8 +4201,9 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
                 goto out;
         }
 
-        mutex_lock(&new_inode->i_mutex);
-        ret = ocfs2_inode_lock(new_inode, &new_bh, 1);
+        mutex_lock_nested(&new_inode->i_mutex, I_MUTEX_CHILD);
+        ret = ocfs2_inode_lock_nested(new_inode, &new_bh, 1,
+                                      OI_LS_REFLINK_TARGET);
         if (ret) {
                 mlog_errno(ret);
                 goto out_unlock;
diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index d8b6e4259b80..3e78db361bc7 100644
--- a/fs/ocfs2/reservations.c
+++ b/fs/ocfs2/reservations.c
@@ -732,25 +732,23 @@ int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap,
                            struct ocfs2_alloc_reservation *resv,
                            int *cstart, int *clen)
 {
-        unsigned int wanted = *clen;
-
         if (resv == NULL || ocfs2_resmap_disabled(resmap))
                 return -ENOSPC;
 
         spin_lock(&resv_lock);
 
-        /*
-         * We don't want to over-allocate for temporary
-         * windows. Otherwise, we run the risk of fragmenting the
-         * allocation space.
-         */
-        wanted = ocfs2_resv_window_bits(resmap, resv);
-        if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen)
-                wanted = *clen;
-
         if (ocfs2_resv_empty(resv)) {
-                mlog(0, "empty reservation, find new window\n");
+                /*
+                 * We don't want to over-allocate for temporary
+                 * windows. Otherwise, we run the risk of fragmenting the
+                 * allocation space.
+                 */
+                unsigned int wanted = ocfs2_resv_window_bits(resmap, resv);
 
+                if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen)
+                        wanted = *clen;
+
+                mlog(0, "empty reservation, find new window\n");
                 /*
                  * Try to get a window here. If it works, we must fall
                  * through and test the bitmap . This avoids some
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index a8e6a95a353f..849c2f0e0a0e 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -57,11 +57,28 @@ struct ocfs2_suballoc_result {
         u64             sr_bg_blkno;    /* The bg we allocated from.  Set
                                            to 0 when a block group is
                                            contiguous. */
+        u64             sr_bg_stable_blkno; /*
+                                             * Doesn't change, always
+                                             * set to target block
+                                             * group descriptor
+                                             * block.
+                                             */
         u64             sr_blkno;       /* The first allocated block */
         unsigned int    sr_bit_offset;  /* The bit in the bg */
         unsigned int    sr_bits;        /* How many bits we claimed */
 };
 
+static u64 ocfs2_group_from_res(struct ocfs2_suballoc_result *res)
+{
+        if (res->sr_blkno == 0)
+                return 0;
+
+        if (res->sr_bg_blkno)
+                return res->sr_bg_blkno;
+
+        return ocfs2_which_suballoc_group(res->sr_blkno, res->sr_bit_offset);
+}
+
 static inline void ocfs2_debug_bg(struct ocfs2_group_desc *bg);
 static inline void ocfs2_debug_suballoc_inode(struct ocfs2_dinode *fe);
 static inline u16 ocfs2_find_victim_chain(struct ocfs2_chain_list *cl);
@@ -138,6 +155,10 @@ void ocfs2_free_ac_resource(struct ocfs2_alloc_context *ac)
         brelse(ac->ac_bh);
         ac->ac_bh = NULL;
         ac->ac_resv = NULL;
+        if (ac->ac_find_loc_priv) {
+                kfree(ac->ac_find_loc_priv);
+                ac->ac_find_loc_priv = NULL;
+        }
 }
 
 void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac)
@@ -336,7 +357,7 @@ out:
 static void ocfs2_bg_discontig_add_extent(struct ocfs2_super *osb,
                                           struct ocfs2_group_desc *bg,
                                           struct ocfs2_chain_list *cl,
-                                          u64 p_blkno, u32 clusters)
+                                          u64 p_blkno, unsigned int clusters)
 {
         struct ocfs2_extent_list *el = &bg->bg_list;
         struct ocfs2_extent_rec *rec;
@@ -348,7 +369,7 @@ static void ocfs2_bg_discontig_add_extent(struct ocfs2_super *osb,
         rec->e_blkno = cpu_to_le64(p_blkno);
         rec->e_cpos = cpu_to_le32(le16_to_cpu(bg->bg_bits) /
                                   le16_to_cpu(cl->cl_bpc));
-        rec->e_leaf_clusters = cpu_to_le32(clusters);
+        rec->e_leaf_clusters = cpu_to_le16(clusters);
         le16_add_cpu(&bg->bg_bits, clusters * le16_to_cpu(cl->cl_bpc));
         le16_add_cpu(&bg->bg_free_bits_count,
                      clusters * le16_to_cpu(cl->cl_bpc));
@@ -1678,6 +1699,15 @@ static int ocfs2_search_one_group(struct ocfs2_alloc_context *ac,
         if (!ret)
                 ocfs2_bg_discontig_fix_result(ac, gd, res);
 
+        /*
+         * sr_bg_blkno might have been changed by
+         * ocfs2_bg_discontig_fix_result
+         */
+        res->sr_bg_stable_blkno = group_bh->b_blocknr;
+
+        if (ac->ac_find_loc_only)
+                goto out_loc_only;
+
         ret = ocfs2_alloc_dinode_update_counts(alloc_inode, handle, ac->ac_bh,
                                                res->sr_bits,
                                                le16_to_cpu(gd->bg_chain));
@@ -1691,6 +1721,7 @@ static int ocfs2_search_one_group(struct ocfs2_alloc_context *ac,
         if (ret < 0)
                 mlog_errno(ret);
 
+out_loc_only:
         *bits_left = le16_to_cpu(gd->bg_free_bits_count);
 
 out:
@@ -1708,7 +1739,6 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 {
         int status;
         u16 chain;
-        u32 tmp_used;
         u64 next_group;
         struct inode *alloc_inode = ac->ac_inode;
         struct buffer_head *group_bh = NULL;
@@ -1770,6 +1800,11 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
         if (!status)
                 ocfs2_bg_discontig_fix_result(ac, bg, res);
 
+        /*
+         * sr_bg_blkno might have been changed by
+         * ocfs2_bg_discontig_fix_result
+         */
+        res->sr_bg_stable_blkno = group_bh->b_blocknr;
 
         /*
          * Keep track of previous block descriptor read. When
@@ -1796,22 +1831,17 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
                 }
         }
 
-        /* Ok, claim our bits now: set the info on dinode, chainlist
-         * and then the group */
-        status = ocfs2_journal_access_di(handle,
-                                         INODE_CACHE(alloc_inode),
-                                         ac->ac_bh,
-                                         OCFS2_JOURNAL_ACCESS_WRITE);
-        if (status < 0) {
+        if (ac->ac_find_loc_only)
+                goto out_loc_only;
+
+        status = ocfs2_alloc_dinode_update_counts(alloc_inode, handle,
+                                                  ac->ac_bh, res->sr_bits,
+                                                  chain);
+        if (status) {
                 mlog_errno(status);
                 goto bail;
         }
 
-        tmp_used = le32_to_cpu(fe->id1.bitmap1.i_used);
-        fe->id1.bitmap1.i_used = cpu_to_le32(res->sr_bits + tmp_used);
-        le32_add_cpu(&cl->cl_recs[chain].c_free, -res->sr_bits);
-        ocfs2_journal_dirty(handle, ac->ac_bh);
-
         status = ocfs2_block_group_set_bits(handle,
                                             alloc_inode,
                                             bg,
@@ -1826,6 +1856,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
         mlog(0, "Allocated %u bits from suballocator %llu\n", res->sr_bits,
              (unsigned long long)le64_to_cpu(fe->i_blkno));
 
+out_loc_only:
         *bits_left = le16_to_cpu(bg->bg_free_bits_count);
 bail:
         brelse(group_bh);
@@ -1845,6 +1876,7 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
         int status;
         u16 victim, i;
         u16 bits_left = 0;
+        u64 hint = ac->ac_last_group;
         struct ocfs2_chain_list *cl;
         struct ocfs2_dinode *fe;
 
@@ -1872,7 +1904,7 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
                 goto bail;
         }
 
-        res->sr_bg_blkno = ac->ac_last_group;
+        res->sr_bg_blkno = hint;
         if (res->sr_bg_blkno) {
                 /* Attempt to short-circuit the usual search mechanism
                  * by jumping straight to the most recently used
@@ -1896,8 +1928,10 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
 
         status = ocfs2_search_chain(ac, handle, bits_wanted, min_bits,
                                     res, &bits_left);
-        if (!status)
+        if (!status) {
+                hint = ocfs2_group_from_res(res);
                 goto set_hint;
+        }
         if (status < 0 && status != -ENOSPC) {
                 mlog_errno(status);
                 goto bail;
@@ -1920,8 +1954,10 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
                 ac->ac_chain = i;
                 status = ocfs2_search_chain(ac, handle, bits_wanted, min_bits,
                                             res, &bits_left);
-                if (!status)
+                if (!status) {
+                        hint = ocfs2_group_from_res(res);
                         break;
+                }
                 if (status < 0 && status != -ENOSPC) {
                         mlog_errno(status);
                         goto bail;
@@ -1936,7 +1972,7 @@ set_hint:
                 if (bits_left < min_bits)
                         ac->ac_last_group = 0;
                 else
-                        ac->ac_last_group = res->sr_bg_blkno;
+                        ac->ac_last_group = hint;
         }
 
 bail:
@@ -2016,6 +2052,136 @@ static inline void ocfs2_save_inode_ac_group(struct inode *dir,
         OCFS2_I(dir)->ip_last_used_slot = ac->ac_alloc_slot;
 }
 
+int ocfs2_find_new_inode_loc(struct inode *dir,
+                             struct buffer_head *parent_fe_bh,
+                             struct ocfs2_alloc_context *ac,
+                             u64 *fe_blkno)
+{
+        int ret;
+        handle_t *handle = NULL;
+        struct ocfs2_suballoc_result *res;
+
+        BUG_ON(!ac);
+        BUG_ON(ac->ac_bits_given != 0);
+        BUG_ON(ac->ac_bits_wanted != 1);
+        BUG_ON(ac->ac_which != OCFS2_AC_USE_INODE);
+
+        res = kzalloc(sizeof(*res), GFP_NOFS);
+        if (res == NULL) {
+                ret = -ENOMEM;
+                mlog_errno(ret);
+                goto out;
+        }
+
+        ocfs2_init_inode_ac_group(dir, parent_fe_bh, ac);
+
+        /*
+         * The handle started here is for chain relink. Alternatively,
+         * we could just disable relink for these calls.
+         */
+        handle = ocfs2_start_trans(OCFS2_SB(dir->i_sb), OCFS2_SUBALLOC_ALLOC);
+        if (IS_ERR(handle)) {
+                ret = PTR_ERR(handle);
+                handle = NULL;
+                mlog_errno(ret);
+                goto out;
+        }
+
+        /*
+         * This will instruct ocfs2_claim_suballoc_bits and
+         * ocfs2_search_one_group to search but save actual allocation
+         * for later.
+         */
+        ac->ac_find_loc_only = 1;
+
+        ret = ocfs2_claim_suballoc_bits(ac, handle, 1, 1, res);
+        if (ret < 0) {
+                mlog_errno(ret);
+                goto out;
+        }
+
+        ac->ac_find_loc_priv = res;
+        *fe_blkno = res->sr_blkno;
+
+out:
+        if (handle)
+                ocfs2_commit_trans(OCFS2_SB(dir->i_sb), handle);
+
+        if (ret)
+                kfree(res);
+
+        return ret;
+}
+
+int ocfs2_claim_new_inode_at_loc(handle_t *handle,
+                                 struct inode *dir,
+                                 struct ocfs2_alloc_context *ac,
+                                 u64 *suballoc_loc,
+                                 u16 *suballoc_bit,
+                                 u64 di_blkno)
+{
+        int ret;
+        u16 chain;
+        struct ocfs2_suballoc_result *res = ac->ac_find_loc_priv;
+        struct buffer_head *bg_bh = NULL;
+        struct ocfs2_group_desc *bg;
+        struct ocfs2_dinode *di = (struct ocfs2_dinode *) ac->ac_bh->b_data;
+
+        /*
+         * Since di_blkno is being passed back in, we check for any
+         * inconsistencies which may have happened between
+         * calls. These are code bugs as di_blkno is not expected to
+         * change once returned from ocfs2_find_new_inode_loc()
+         */
+        BUG_ON(res->sr_blkno != di_blkno);
+
+        ret = ocfs2_read_group_descriptor(ac->ac_inode, di,
+                                          res->sr_bg_stable_blkno, &bg_bh);
+        if (ret) {
+                mlog_errno(ret);
+                goto out;
+        }
+
+        bg = (struct ocfs2_group_desc *) bg_bh->b_data;
+        chain = le16_to_cpu(bg->bg_chain);
+
+        ret = ocfs2_alloc_dinode_update_counts(ac->ac_inode, handle,
+                                               ac->ac_bh, res->sr_bits,
+                                               chain);
+        if (ret) {
+                mlog_errno(ret);
+                goto out;
+        }
+
+        ret = ocfs2_block_group_set_bits(handle,
+                                         ac->ac_inode,
+                                         bg,
+                                         bg_bh,
+                                         res->sr_bit_offset,
+                                         res->sr_bits);
+        if (ret < 0) {
+                mlog_errno(ret);
+                goto out;
+        }
+
+        mlog(0, "Allocated %u bits from suballocator %llu\n", res->sr_bits,
+             (unsigned long long)di_blkno);
+
+        atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+
+        BUG_ON(res->sr_bits != 1);
+
+        *suballoc_loc = res->sr_bg_blkno;
+        *suballoc_bit = res->sr_bit_offset;
+        ac->ac_bits_given++;
+        ocfs2_save_inode_ac_group(dir, ac);
+
+out:
+        brelse(bg_bh);
+
+        return ret;
+}
+
 int ocfs2_claim_new_inode(handle_t *handle,
                           struct inode *dir,
                           struct buffer_head *parent_fe_bh,
@@ -2567,7 +2733,8 @@ out:
  * suballoc_bit.
  */
 static int ocfs2_get_suballoc_slot_bit(struct ocfs2_super *osb, u64 blkno,
-                                       u16 *suballoc_slot, u16 *suballoc_bit)
+                                       u16 *suballoc_slot, u64 *group_blkno,
+                                       u16 *suballoc_bit)
 {
         int status;
         struct buffer_head *inode_bh = NULL;
@@ -2604,6 +2771,8 @@ static int ocfs2_get_suballoc_slot_bit(struct ocfs2_super *osb, u64 blkno,
                 *suballoc_slot = le16_to_cpu(inode_fe->i_suballoc_slot);
         if (suballoc_bit)
                 *suballoc_bit = le16_to_cpu(inode_fe->i_suballoc_bit);
+        if (group_blkno)
+                *group_blkno = le64_to_cpu(inode_fe->i_suballoc_loc);
 
 bail:
         brelse(inode_bh);
@@ -2621,7 +2790,8 @@ bail:
  */
 static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
                                    struct inode *suballoc,
-                                   struct buffer_head *alloc_bh, u64 blkno,
+                                   struct buffer_head *alloc_bh,
+                                   u64 group_blkno, u64 blkno,
                                    u16 bit, int *res)
 {
         struct ocfs2_dinode *alloc_di;
@@ -2642,10 +2812,8 @@ static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
                 goto bail;
         }
 
-        if (alloc_di->i_suballoc_loc)
-                bg_blkno = le64_to_cpu(alloc_di->i_suballoc_loc);
-        else
-                bg_blkno = ocfs2_which_suballoc_group(blkno, bit);
+        bg_blkno = group_blkno ? group_blkno :
+                   ocfs2_which_suballoc_group(blkno, bit);
         status = ocfs2_read_group_descriptor(suballoc, alloc_di, bg_blkno,
                                              &group_bh);
         if (status < 0) {
@@ -2680,6 +2848,7 @@ bail:
 int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
 {
         int status;
+        u64 group_blkno = 0;
         u16 suballoc_bit = 0, suballoc_slot = 0;
         struct inode *inode_alloc_inode;
         struct buffer_head *alloc_bh = NULL;
@@ -2687,7 +2856,7 @@ int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
         mlog_entry("blkno: %llu", (unsigned long long)blkno);
 
         status = ocfs2_get_suballoc_slot_bit(osb, blkno, &suballoc_slot,
-                                             &suballoc_bit);
+                                             &group_blkno, &suballoc_bit);
         if (status < 0) {
                 mlog(ML_ERROR, "get alloc slot and bit failed %d\n", status);
                 goto bail;
@@ -2715,7 +2884,7 @@ int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
         }
 
         status = ocfs2_test_suballoc_bit(osb, inode_alloc_inode, alloc_bh,
-                                         blkno, suballoc_bit, res);
+                                         group_blkno, blkno, suballoc_bit, res);
         if (status < 0)
                 mlog(ML_ERROR, "test suballoc bit failed %d\n", status);
 
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index a017dd3ee7d9..b8afabfeede4 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -56,6 +56,9 @@ struct ocfs2_alloc_context {
         u64    ac_max_block;  /* Highest block number to allocate. 0 is
                                  is the same as ~0 - unlimited */
 
+        int    ac_find_loc_only;  /* hack for reflink operation ordering */
+        struct ocfs2_suballoc_result *ac_find_loc_priv; /* */
+
         struct ocfs2_alloc_reservation  *ac_resv;
 };
 
@@ -197,4 +200,22 @@ int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_extent_tree *et,
                           struct ocfs2_alloc_context **meta_ac);
 
 int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res);
+
+
+
+/*
+ * The following two interfaces are for ocfs2_create_inode_in_orphan().
+ */
+int ocfs2_find_new_inode_loc(struct inode *dir,
+                             struct buffer_head *parent_fe_bh,
+                             struct ocfs2_alloc_context *ac,
+                             u64 *fe_blkno);
+
+int ocfs2_claim_new_inode_at_loc(handle_t *handle,
+                                 struct inode *dir,
+                                 struct ocfs2_alloc_context *ac,
+                                 u64 *suballoc_loc,
+                                 u16 *suballoc_bit,
+                                 u64 di_blkno);
+
 #endif /* _CHAINALLOC_H_ */
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index d03469f61801..06fa5e77c40e 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -1286,13 +1286,11 @@ int ocfs2_xattr_get_nolock(struct inode *inode,
         xis.inode_bh = xbs.inode_bh = di_bh;
         di = (struct ocfs2_dinode *)di_bh->b_data;
 
-        down_read(&oi->ip_xattr_sem);
         ret = ocfs2_xattr_ibody_get(inode, name_index, name, buffer,
                                     buffer_size, &xis);
         if (ret == -ENODATA && di->i_xattr_loc)
                 ret = ocfs2_xattr_block_get(inode, name_index, name, buffer,
                                             buffer_size, &xbs);
-        up_read(&oi->ip_xattr_sem);
 
         return ret;
 }
@@ -1316,8 +1314,10 @@ static int ocfs2_xattr_get(struct inode *inode,
                 mlog_errno(ret);
                 return ret;
         }
+        down_read(&OCFS2_I(inode)->ip_xattr_sem);
         ret = ocfs2_xattr_get_nolock(inode, di_bh, name_index,
                                      name, buffer, buffer_size);
+        up_read(&OCFS2_I(inode)->ip_xattr_sem);
 
         ocfs2_inode_unlock(inode, 0);
 
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 180cf5a0bd67..3b8b45660331 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -146,7 +146,7 @@ u64 stable_page_flags(struct page *page)
         u |= kpf_copy_bit(k, KPF_HWPOISON,      PG_hwpoison);
 #endif
 
-#ifdef CONFIG_IA64_UNCACHED_ALLOCATOR
+#ifdef CONFIG_ARCH_USES_PG_UNCACHED
         u |= kpf_copy_bit(k, KPF_UNCACHED,      PG_uncached);
 #endif
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 439fc1f1c1c4..1dbca4e8cc16 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -224,7 +224,8 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
         /* We don't show the stack guard page in /proc/maps */
         start = vma->vm_start;
         if (vma->vm_flags & VM_GROWSDOWN)
-                start += PAGE_SIZE;
+                if (!vma_stack_continue(vma->vm_prev, vma->vm_start))
+                        start += PAGE_SIZE;
 
         seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
                         start,
@@ -362,13 +363,13 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
                         mss->referenced += PAGE_SIZE;
                 mapcount = page_mapcount(page);
                 if (mapcount >= 2) {
-                        if (pte_dirty(ptent))
+                        if (pte_dirty(ptent) || PageDirty(page))
                                 mss->shared_dirty += PAGE_SIZE;
                         else
                                 mss->shared_clean += PAGE_SIZE;
                         mss->pss += (PAGE_SIZE << PSS_SHIFT) / mapcount;
                 } else {
-                        if (pte_dirty(ptent))
+                        if (pte_dirty(ptent) || PageDirty(page))
                                 mss->private_dirty += PAGE_SIZE;
                         else
                                 mss->private_clean += PAGE_SIZE;
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 91c817ff02c3..2367fb3f70bc 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -163,7 +163,7 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
 
 static const struct file_operations proc_vmcore_operations = {
         .read           = read_vmcore,
-        .llseek         = generic_file_llseek,
+        .llseek         = default_llseek,
 };
 
 static struct vmcore* __init get_new_element(void)
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 1b27b5688f62..da3fefe91a8f 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -340,7 +340,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
         char *p;
 
         p = d_path(&file->f_path, last_sysfs_file, sizeof(last_sysfs_file));
-        if (p)
+        if (!IS_ERR(p))
                 memmove(last_sysfs_file, p, strlen(p) + 1);
 
         /* need attr_sd for attr and ops, its parent for kobj */
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index ea79072f5210..286e36e21dae 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -440,12 +440,7 @@ _xfs_buf_find(
                 ASSERT(btp == bp->b_target);
                 if (bp->b_file_offset == range_base &&
                     bp->b_buffer_length == range_length) {
-                        /*
-                         * If we look at something, bring it to the
-                         * front of the list for next time.
-                         */
                         atomic_inc(&bp->b_hold);
-                        list_move(&bp->b_hash_list, &hash->bh_list);
                         goto found;
                 }
         }
@@ -1443,8 +1438,7 @@ xfs_alloc_bufhash(
 {
         unsigned int            i;
 
-        btp->bt_hashshift = external ? 3 : 8;   /* 8 or 256 buckets */
-        btp->bt_hashmask = (1 << btp->bt_hashshift) - 1;
+        btp->bt_hashshift = external ? 3 : 12;  /* 8 or 4096 buckets */
         btp->bt_hash = kmem_zalloc_large((1 << btp->bt_hashshift) *
                                          sizeof(xfs_bufhash_t));
         for (i = 0; i < (1 << btp->bt_hashshift); i++) {
@@ -1938,7 +1932,8 @@ xfs_buf_init(void)
         if (!xfs_buf_zone)
                 goto out;
 
-        xfslogd_workqueue = create_workqueue("xfslogd");
+        xfslogd_workqueue = alloc_workqueue("xfslogd",
+                                        WQ_RESCUER | WQ_HIGHPRI, 1);
         if (!xfslogd_workqueue)
                 goto out_free_buf_zone;
 
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index d072e5ff923b..2a05614f0b92 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -137,7 +137,6 @@ typedef struct xfs_buftarg {
         size_t                  bt_smask;
 
         /* per device buffer hash table */
-        uint                    bt_hashmask;
         uint                    bt_hashshift;
         xfs_bufhash_t           *bt_hash;
 
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 237f5ffb2ee8..3b9e626f7cd1 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -785,6 +785,8 @@ xfs_ioc_fsgetxattr(
 {
         struct fsxattr          fa;
 
+        memset(&fa, 0, sizeof(struct fsxattr));
+
         xfs_ilock(ip, XFS_ILOCK_SHARED);
         fa.fsx_xflags = xfs_ip2xflags(ip);
         fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog;
@@ -907,6 +909,13 @@ xfs_ioctl_setattr(
                 return XFS_ERROR(EIO);
 
         /*
+         * Disallow 32bit project ids because on-disk structure
+         * is 16bit only.
+         */
+        if ((mask & FSX_PROJID) && (fa->fsx_projid > (__uint16_t)-1))
+                return XFS_ERROR(EINVAL);
+
+        /*
          * If disk quotas is on, we make sure that the dquots do exist on disk,
          * before we start any other transactions. Trying to do this later
          * is messy. We don't care to take a readlock to look at the ids
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 68be25dcd301..b1fc2a6bfe83 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -664,7 +664,7 @@ xfs_vn_fiemap(
                                         fieinfo->fi_extents_max + 1;
         bm.bmv_count = min_t(__s32, bm.bmv_count,
                              (PAGE_SIZE * 16 / sizeof(struct getbmapx)));
-        bm.bmv_iflags = BMV_IF_PREALLOC;
+        bm.bmv_iflags = BMV_IF_PREALLOC | BMV_IF_NO_HOLES;
         if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR)
                 bm.bmv_iflags |= BMV_IF_ATTRFORK;
         if (!(fieinfo->fi_flags & FIEMAP_FLAG_SYNC))
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 23f14e595c18..f90dadd5a968 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -5533,12 +5533,24 @@ xfs_getbmap(
                                         map[i].br_startblock))
                                 goto out_free_map;
 
-                        nexleft--;
                         bmv->bmv_offset =
                                 out[cur_ext].bmv_offset +
                                 out[cur_ext].bmv_length;
                         bmv->bmv_length =
                                 max_t(__int64_t, 0, bmvend - bmv->bmv_offset);
+
+                        /*
+                         * In case we don't want to return the hole,
+                         * don't increase cur_ext so that we can reuse
+                         * it in the next loop.
+                         */
+                        if ((iflags & BMV_IF_NO_HOLES) &&
+                            map[i].br_startblock == HOLESTARTBLOCK) {
+                                memset(&out[cur_ext], 0, sizeof(out[cur_ext]));
+                                continue;
+                        }
+
+                        nexleft--;
                         bmv->bmv_entries++;
                         cur_ext++;
                 }
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 7cf7220e7d5f..87c2e9d02288 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -114,8 +114,10 @@ struct getbmapx {
 #define BMV_IF_NO_DMAPI_READ    0x2     /* Do not generate DMAPI read event  */
 #define BMV_IF_PREALLOC         0x4     /* rtn status BMV_OF_PREALLOC if req */
 #define BMV_IF_DELALLOC         0x8     /* rtn status BMV_OF_DELALLOC if req */
+#define BMV_IF_NO_HOLES         0x10    /* Do not return holes */
 #define BMV_IF_VALID    \
-        (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|BMV_IF_DELALLOC)
+        (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|  \
+         BMV_IF_DELALLOC|BMV_IF_NO_HOLES)
 
 /*      bmv_oflags values - returned for each non-header segment */
 #define BMV_OF_PREALLOC         0x1     /* segment = unwritten pre-allocation */
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 66d585c6917c..4c7c7bfb2b2f 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -2299,15 +2299,22 @@ xfs_alloc_file_space(
                         e = allocatesize_fsb;
                 }
 
+                /*
+                 * The transaction reservation is limited to a 32-bit block
+                 * count, hence we need to limit the number of blocks we are
+                 * trying to reserve to avoid an overflow. We can't allocate
+                 * more than @nimaps extents, and an extent is limited on disk
+                 * to MAXEXTLEN (21 bits), so use that to enforce the limit.
+                 */
+                resblks = min_t(xfs_fileoff_t, (e - s), (MAXEXTLEN * nimaps));
                 if (unlikely(rt)) {
-                        resrtextents = qblocks = (uint)(e - s);
+                        resrtextents = qblocks = resblks;
                         resrtextents /= mp->m_sb.sb_rextsize;
                         resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
                         quota_flag = XFS_QMOPT_RES_RTBLKS;
                 } else {
                         resrtextents = 0;
-                        resblks = qblocks = \
-                                XFS_DIOSTRAT_SPACE_RES(mp, (uint)(e - s));
+                        resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resblks);
                         quota_flag = XFS_QMOPT_RES_REGBLKS;
                 }
 
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index baacd98e7cc6..4de84ce3a927 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -377,9 +377,6 @@ struct acpi_pci_root {
 
         u32 osc_support_set;    /* _OSC state of support bits */
         u32 osc_control_set;    /* _OSC state of control bits */
-        u32 osc_control_qry;    /* the latest _OSC query result */
-
-        u32 osc_queried:1;      /* has _OSC control been queried? */
 };
 
 /* helper */
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index c7376bf80b06..8ca18e26d7e3 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -16,15 +16,27 @@
  * While the GPIO programming interface defines valid GPIO numbers
  * to be in the range 0..MAX_INT, this library restricts them to the
  * smaller range 0..ARCH_NR_GPIOS-1.
+ *
+ * ARCH_NR_GPIOS is somewhat arbitrary; it usually reflects the sum of
+ * builtin/SoC GPIOs plus a number of GPIOs on expanders; the latter is
+ * actually an estimate of a board-specific value.
  */
 
 #ifndef ARCH_NR_GPIOS
 #define ARCH_NR_GPIOS           256
 #endif
 
+/*
+ * "valid" GPIO numbers are nonnegative and may be passed to
+ * setup routines like gpio_request().  only some valid numbers
+ * can successfully be requested and used.
+ *
+ * Invalid GPIO numbers are useful for indicating no-such-GPIO in
+ * platform data and other tables.
+ */
+
 static inline int gpio_is_valid(int number)
 {
-        /* only some non-negative numbers are valid */
         return ((unsigned)number) < ARCH_NR_GPIOS;
 }
 
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index b5043a9890d8..08923b684768 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -70,11 +70,16 @@ extern void setup_per_cpu_areas(void);
 
 #else /* ! SMP */
 
-#define per_cpu(var, cpu)                       (*((void)(cpu), &(var)))
-#define __get_cpu_var(var)                      (var)
-#define __raw_get_cpu_var(var)                  (var)
-#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0)
-#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr)
+#define VERIFY_PERCPU_PTR(__p) ({                       \
+        __verify_pcpu_ptr((__p));                       \
+        (typeof(*(__p)) __kernel __force *)(__p);       \
+})
+
+#define per_cpu(var, cpu)       (*((void)(cpu), VERIFY_PERCPU_PTR(&(var))))
+#define __get_cpu_var(var)      (*VERIFY_PERCPU_PTR(&(var)))
+#define __raw_get_cpu_var(var)  (*VERIFY_PERCPU_PTR(&(var)))
+#define this_cpu_ptr(ptr)       per_cpu_ptr(ptr, 0)
+#define __this_cpu_ptr(ptr)     this_cpu_ptr(ptr)
 
 #endif  /* SMP */
 
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c9f3cc5949a8..3e5a51af757c 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -386,7 +386,15 @@ struct drm_connector_funcs {
         void (*dpms)(struct drm_connector *connector, int mode);
         void (*save)(struct drm_connector *connector);
         void (*restore)(struct drm_connector *connector);
-        enum drm_connector_status (*detect)(struct drm_connector *connector);
+
+        /* Check to see if anything is attached to the connector.
+         * @force is set to false whilst polling, true when checking the
+         * connector due to user request. @force can be used by the driver
+         * to avoid expensive, destructive operations during automated
+         * probing.
+         */
+        enum drm_connector_status (*detect)(struct drm_connector *connector,
+                                            bool force);
         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
                              uint64_t val);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index ccf94dc5acdf..c227757feb06 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -304,8 +304,8 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
                                 OSC_PCI_EXPRESS_PME_CONTROL |           \
                                 OSC_PCI_EXPRESS_AER_CONTROL |           \
                                 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
-
-extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags);
+extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
+                                             u32 *mask, u32 req);
 extern void acpi_early_init(void);
 
 #else   /* !CONFIG_ACPI */
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index b0c174012436..c6454cca0447 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -20,6 +20,7 @@
 #include <linux/resource.h>
 
 #define AMBA_NR_IRQS    2
+#define AMBA_CID        0xb105f00d
 
 struct clk;
 
@@ -70,9 +71,15 @@ void amba_release_regions(struct amba_device *);
 #define amba_pclk_disable(d)    \
         do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0)
 
-#define amba_config(d)  (((d)->periphid >> 24) & 0xff)
-#define amba_rev(d)     (((d)->periphid >> 20) & 0x0f)
-#define amba_manf(d)    (((d)->periphid >> 12) & 0xff)
-#define amba_part(d)    ((d)->periphid & 0xfff)
+/* Some drivers don't use the struct amba_device */
+#define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff)
+#define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f)
+#define AMBA_MANF_BITS(a) (((a) >> 12) & 0xff)
+#define AMBA_PART_BITS(a) ((a) & 0xfff)
+
+#define amba_config(d)  AMBA_CONFIG_BITS((d)->periphid)
+#define amba_rev(d)     AMBA_REV_BITS((d)->periphid)
+#define amba_manf(d)    AMBA_MANF_BITS((d)->periphid)
+#define amba_part(d)    AMBA_PART_BITS((d)->periphid)
 
 #endif
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index ca84ce70d5d5..f4ee9acc9721 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -24,6 +24,7 @@
  * whether a card is present in the MMC slot or not
  * @gpio_wp: read this GPIO pin to see if the card is write protected
  * @gpio_cd: read this GPIO pin to detect card insertion
+ * @cd_invert: true if the gpio_cd pin value is active low
  * @capabilities: the capabilities of the block as implemented in
  * this platform, signify anything MMC_CAP_* from mmc/host.h
  */
@@ -35,6 +36,7 @@ struct mmci_platform_data {
         unsigned int (*status)(struct device *);
         int     gpio_wp;
         int     gpio_cd;
+        bool    cd_invert;
         unsigned long capabilities;
 };
 
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h
index e1b634b635f2..6021588ba0a8 100644
--- a/include/linux/amba/serial.h
+++ b/include/linux/amba/serial.h
@@ -32,7 +32,9 @@
 #define UART01x_RSR             0x04    /* Receive status register (Read). */
 #define UART01x_ECR             0x04    /* Error clear register (Write). */
 #define UART010_LCRH            0x08    /* Line control register, high byte. */
+#define ST_UART011_DMAWM        0x08    /* DMA watermark configure register. */
 #define UART010_LCRM            0x0C    /* Line control register, middle byte. */
+#define ST_UART011_TIMEOUT      0x0C    /* Timeout period register. */
 #define UART010_LCRL            0x10    /* Line control register, low byte. */
 #define UART010_CR              0x14    /* Control register. */
 #define UART01x_FR              0x18    /* Flag register (Read only). */
@@ -51,6 +53,15 @@
 #define UART011_MIS             0x40    /* Masked interrupt status. */
 #define UART011_ICR             0x44    /* Interrupt clear register. */
 #define UART011_DMACR           0x48    /* DMA control register. */
+#define ST_UART011_XFCR         0x50    /* XON/XOFF control register. */
+#define ST_UART011_XON1         0x54    /* XON1 register. */
+#define ST_UART011_XON2         0x58    /* XON2 register. */
+#define ST_UART011_XOFF1        0x5C    /* XON1 register. */
+#define ST_UART011_XOFF2        0x60    /* XON2 register. */
+#define ST_UART011_ITCR         0x80    /* Integration test control register. */
+#define ST_UART011_ITIP         0x84    /* Integration test input register. */
+#define ST_UART011_ABCR         0x100   /* Autobaud control register. */
+#define ST_UART011_ABIMSC       0x15C   /* Autobaud interrupt mask/clear register. */
 
 #define UART011_DR_OE           (1 << 11)
 #define UART011_DR_BE           (1 << 10)
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index ed3e92e41c6e..0c991023ee47 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -578,7 +578,12 @@ struct task_struct *cgroup_iter_next(struct cgroup *cgrp,
 void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it);
 int cgroup_scan_tasks(struct cgroup_scanner *scan);
 int cgroup_attach_task(struct cgroup *, struct task_struct *);
-int cgroup_attach_task_current_cg(struct task_struct *);
+int cgroup_attach_task_all(struct task_struct *from, struct task_struct *);
+
+static inline int cgroup_attach_task_current_cg(struct task_struct *tsk)
+{
+        return cgroup_attach_task_all(current, tsk);
+}
 
 /*
  * CSS ID is ID for cgroup_subsys_state structs under subsys. This only works
@@ -636,6 +641,11 @@ static inline int cgroupstats_build(struct cgroupstats *stats,
 }
 
 /* No cgroups - nothing to do */
+static inline int cgroup_attach_task_all(struct task_struct *from,
+                                         struct task_struct *t)
+{
+        return 0;
+}
 static inline int cgroup_attach_task_current_cg(struct task_struct *t)
 {
         return 0;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 9ddc8780e8db..5778b559d59c 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -360,5 +360,8 @@ extern ssize_t compat_rw_copy_check_uvector(int type,
                 const struct compat_iovec __user *uvector, unsigned long nr_segs,
                 unsigned long fast_segs, struct iovec *fast_pointer,
                 struct iovec **ret_pointer);
+
+extern void __user *compat_alloc_user_space(unsigned long len);
+
 #endif /* CONFIG_COMPAT */
 #endif /* _LINUX_COMPAT_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ce29b8151198..ba8319ae5fcc 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -102,6 +102,9 @@ static inline u64 dma_get_mask(struct device *dev)
         return DMA_BIT_MASK(32);
 }
 
+#ifdef ARCH_HAS_DMA_SET_COHERENT_MASK
+int dma_set_coherent_mask(struct device *dev, u64 mask);
+#else
 static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
         if (!dma_supported(dev, mask))
@@ -109,6 +112,7 @@ static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
         dev->coherent_dma_mask = mask;
         return 0;
 }
+#endif
 
 extern u64 dma_get_required_mask(struct device *dev);
 
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 2c958f4fce1e..926b50322a46 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -136,6 +136,7 @@ extern ssize_t elv_iosched_store(struct request_queue *, const char *, size_t);
 
 extern int elevator_init(struct request_queue *, char *);
 extern void elevator_exit(struct elevator_queue *);
+extern int elevator_change(struct request_queue *, const char *);
 extern int elv_rq_merge_ok(struct request *, struct bio *);
 
 /*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 76041b614758..63d069bd80b7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1093,6 +1093,10 @@ struct file_lock {
 
 #include <linux/fcntl.h>
 
+/* temporary stubs for BKL removal */
+#define lock_flocks() lock_kernel()
+#define unlock_flocks() unlock_kernel()
+
 extern void send_sigio(struct fown_struct *fown, int fd, int band);
 
 #ifdef CONFIG_FILE_LOCKING
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 03f616b78cfa..e41f7dd1ae67 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 
 struct device;
+struct gpio_chip;
 
 /*
  * Some platforms don't support the GPIO programming interface.
diff --git a/include/linux/i2c/sx150x.h b/include/linux/i2c/sx150x.h
index ee3049cb9ba5..52baa79d69a7 100644
--- a/include/linux/i2c/sx150x.h
+++ b/include/linux/i2c/sx150x.h
@@ -63,6 +63,9 @@
  *            IRQ lines will appear.  Similarly to gpio_base, the expander
  *            will create a block of irqs beginning at this number.
  *            This value is ignored if irq_summary is < 0.
+ * @reset_during_probe: If set to true, the driver will trigger a full
+ *                      reset of the chip at the beginning of the probe
+ *                      in order to place it in a known state.
  */
 struct sx150x_platform_data {
         unsigned gpio_base;
@@ -73,6 +76,7 @@ struct sx150x_platform_data {
         u16      io_polarity;
         int      irq_summary;
         unsigned irq_base;
+        bool     reset_during_probe;
 };
 
 #endif /* __LINUX_I2C_SX150X_H */
diff --git a/include/linux/intel-gtt.h b/include/linux/intel-gtt.h
new file mode 100644
index 000000000000..1d19ab2afa39
--- /dev/null
+++ b/include/linux/intel-gtt.h
@@ -0,0 +1,20 @@
+/*
+ * Common Intel AGPGART and GTT definitions.
+ */
+#ifndef _INTEL_GTT_H
+#define _INTEL_GTT_H
+
+#include <linux/agp_backend.h>
+
+/* This is for Intel only GTT controls.
+ *
+ * Sandybridge: AGP_USER_CACHED_MEMORY default to LLC only
+ */
+
+#define AGP_USER_CACHED_MEMORY_LLC_MLC (AGP_USER_TYPES + 2)
+#define AGP_USER_UNCACHED_MEMORY (AGP_USER_TYPES + 4)
+
+/* flag for GFDT type */
+#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
+
+#endif
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index 0a6b3d5c490c..7fb592793738 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -79,7 +79,7 @@ io_mapping_free(struct io_mapping *mapping)
 }
 
 /* Atomic map/unmap */
-static inline void *
+static inline void __iomem *
 io_mapping_map_atomic_wc(struct io_mapping *mapping,
                          unsigned long offset,
                          int slot)
@@ -94,12 +94,12 @@ io_mapping_map_atomic_wc(struct io_mapping *mapping,
 }
 
 static inline void
-io_mapping_unmap_atomic(void *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
 {
         iounmap_atomic(vaddr, slot);
 }
 
-static inline void *
+static inline void __iomem *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
         resource_size_t phys_addr;
@@ -111,7 +111,7 @@ io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 }
 
 static inline void
-io_mapping_unmap(void *vaddr)
+io_mapping_unmap(void __iomem *vaddr)
 {
         iounmap(vaddr);
 }
@@ -125,38 +125,38 @@ struct io_mapping;
 static inline struct io_mapping *
 io_mapping_create_wc(resource_size_t base, unsigned long size)
 {
-        return (struct io_mapping *) ioremap_wc(base, size);
+        return (struct io_mapping __force *) ioremap_wc(base, size);
 }
 
 static inline void
 io_mapping_free(struct io_mapping *mapping)
 {
-        iounmap(mapping);
+        iounmap((void __force __iomem *) mapping);
 }
 
 /* Atomic map/unmap */
-static inline void *
+static inline void __iomem *
 io_mapping_map_atomic_wc(struct io_mapping *mapping,
                          unsigned long offset,
                          int slot)
 {
-        return ((char *) mapping) + offset;
+        return ((char __force __iomem *) mapping) + offset;
 }
 
 static inline void
-io_mapping_unmap_atomic(void *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
 {
 }
 
 /* Non-atomic map/unmap */
-static inline void *
+static inline void __iomem *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
-        return ((char *) mapping) + offset;
+        return ((char __force __iomem *) mapping) + offset;
 }
 
 static inline void
-io_mapping_unmap(void *vaddr)
+io_mapping_unmap(void __iomem *vaddr)
 {
 }
 
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 4aa95f203f3e..62dbee554f60 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -214,7 +214,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_reset(fifo) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         __tmp->kfifo.in = __tmp->kfifo.out = 0; \
 })
 
@@ -228,7 +228,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_reset_out(fifo)   \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         __tmp->kfifo.out = __tmp->kfifo.in; \
 })
 
@@ -238,7 +238,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_len(fifo) \
 ({ \
-        typeof(fifo + 1) __tmpl = (fifo); \
+        typeof((fifo) + 1) __tmpl = (fifo); \
         __tmpl->kfifo.in - __tmpl->kfifo.out; \
 })
 
@@ -248,7 +248,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_is_empty(fifo) \
 ({ \
-        typeof(fifo + 1) __tmpq = (fifo); \
+        typeof((fifo) + 1) __tmpq = (fifo); \
         __tmpq->kfifo.in == __tmpq->kfifo.out; \
 })
 
@@ -258,7 +258,7 @@ __kfifo_must_check_helper(unsigned int val)
  */
 #define kfifo_is_full(fifo) \
 ({ \
-        typeof(fifo + 1) __tmpq = (fifo); \
+        typeof((fifo) + 1) __tmpq = (fifo); \
         kfifo_len(__tmpq) > __tmpq->kfifo.mask; \
 })
 
@@ -269,7 +269,7 @@ __kfifo_must_check_helper(unsigned int val)
 #define kfifo_avail(fifo) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmpq = (fifo); \
+        typeof((fifo) + 1) __tmpq = (fifo); \
         const size_t __recsize = sizeof(*__tmpq->rectype); \
         unsigned int __avail = kfifo_size(__tmpq) - kfifo_len(__tmpq); \
         (__recsize) ? ((__avail <= __recsize) ? 0 : \
@@ -284,7 +284,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_skip(fifo) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         if (__recsize) \
@@ -302,7 +302,7 @@ __kfifo_must_check_helper( \
 #define kfifo_peek_len(fifo) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         (!__recsize) ? kfifo_len(__tmp) * sizeof(*__tmp->type) : \
@@ -325,7 +325,7 @@ __kfifo_must_check_helper( \
 #define kfifo_alloc(fifo, size, gfp_mask) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         __is_kfifo_ptr(__tmp) ? \
         __kfifo_alloc(__kfifo, size, sizeof(*__tmp->type), gfp_mask) : \
@@ -339,7 +339,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_free(fifo) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         if (__is_kfifo_ptr(__tmp)) \
                 __kfifo_free(__kfifo); \
@@ -358,7 +358,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_init(fifo, buffer, size) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
         __is_kfifo_ptr(__tmp) ? \
         __kfifo_init(__kfifo, buffer, size, sizeof(*__tmp->type)) : \
@@ -379,8 +379,8 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_put(fifo, val) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(val + 1) __val = (val); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((val) + 1) __val = (val); \
         unsigned int __ret; \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -421,8 +421,8 @@ __kfifo_must_check_helper( \
 #define kfifo_get(fifo, val) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(val + 1) __val = (val); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((val) + 1) __val = (val); \
         unsigned int __ret; \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -462,8 +462,8 @@ __kfifo_must_check_helper( \
 #define kfifo_peek(fifo, val) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(val + 1) __val = (val); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((val) + 1) __val = (val); \
         unsigned int __ret; \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -501,8 +501,8 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_in(fifo, buf, n) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(buf + 1) __buf = (buf); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((buf) + 1) __buf = (buf); \
         unsigned long __n = (n); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -554,8 +554,8 @@ __kfifo_must_check_helper( \
 #define kfifo_out(fifo, buf, n) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(buf + 1) __buf = (buf); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((buf) + 1) __buf = (buf); \
         unsigned long __n = (n); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -611,7 +611,7 @@ __kfifo_must_check_helper( \
 #define kfifo_from_user(fifo, from, len, copied) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         const void __user *__from = (from); \
         unsigned int __len = (len); \
         unsigned int *__copied = (copied); \
@@ -639,7 +639,7 @@ __kfifo_must_check_helper( \
 #define kfifo_to_user(fifo, to, len, copied) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         void __user *__to = (to); \
         unsigned int __len = (len); \
         unsigned int *__copied = (copied); \
@@ -666,7 +666,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_in_prepare(fifo, sgl, nents, len) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         struct scatterlist *__sgl = (sgl); \
         int __nents = (nents); \
         unsigned int __len = (len); \
@@ -690,7 +690,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_in_finish(fifo, len) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         unsigned int __len = (len); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -717,7 +717,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_out_prepare(fifo, sgl, nents, len) \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo);  \
         struct scatterlist *__sgl = (sgl); \
         int __nents = (nents); \
         unsigned int __len = (len); \
@@ -741,7 +741,7 @@ __kfifo_must_check_helper( \
  */
 #define kfifo_dma_out_finish(fifo, len) \
 (void)({ \
-        typeof(fifo + 1) __tmp = (fifo); \
+        typeof((fifo) + 1) __tmp = (fifo); \
         unsigned int __len = (len); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
@@ -766,8 +766,8 @@ __kfifo_must_check_helper( \
 #define kfifo_out_peek(fifo, buf, n) \
 __kfifo_must_check_helper( \
 ({ \
-        typeof(fifo + 1) __tmp = (fifo); \
-        typeof(buf + 1) __buf = (buf); \
+        typeof((fifo) + 1) __tmp = (fifo); \
+        typeof((buf) + 1) __buf = (buf); \
         unsigned long __n = (n); \
         const size_t __recsize = sizeof(*__tmp->rectype); \
         struct __kfifo *__kfifo = &__tmp->kfifo; \
diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 74d691ee9121..3319a6967626 100644
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -16,6 +16,9 @@
 struct stable_node;
 struct mem_cgroup;
 
+struct page *ksm_does_need_to_copy(struct page *page,
+                        struct vm_area_struct *vma, unsigned long address);
+
 #ifdef CONFIG_KSM
 int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
                 unsigned long end, int advice, unsigned long *vm_flags);
@@ -70,19 +73,14 @@ static inline void set_page_stable_node(struct page *page,
  * We'd like to make this conditional on vma->vm_flags & VM_MERGEABLE,
  * but what if the vma was unmerged while the page was swapped out?
  */
-struct page *ksm_does_need_to_copy(struct page *page,
-                        struct vm_area_struct *vma, unsigned long address);
-static inline struct page *ksm_might_need_to_copy(struct page *page,
+static inline int ksm_might_need_to_copy(struct page *page,
                         struct vm_area_struct *vma, unsigned long address)
 {
         struct anon_vma *anon_vma = page_anon_vma(page);
 
-        if (!anon_vma ||
-            (anon_vma->root == vma->anon_vma->root &&
-             page->index == linear_page_index(vma, address)))
-                return page;
-
-        return ksm_does_need_to_copy(page, vma, address);
+        return anon_vma &&
+                (anon_vma->root != vma->anon_vma->root ||
+                 page->index != linear_page_index(vma, address));
 }
 
 int page_referenced_ksm(struct page *page,
@@ -115,10 +113,10 @@ static inline int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
         return 0;
 }
 
-static inline struct page *ksm_might_need_to_copy(struct page *page,
+static inline int ksm_might_need_to_copy(struct page *page,
                         struct vm_area_struct *vma, unsigned long address)
 {
-        return page;
+        return 0;
 }
 
 static inline int page_referenced_ksm(struct page *page,
diff --git a/include/linux/lglock.h b/include/linux/lglock.h
index b288cb713b90..f549056fb20b 100644
--- a/include/linux/lglock.h
+++ b/include/linux/lglock.h
@@ -150,7 +150,7 @@
         int i;                                                          \
         preempt_disable();                                              \
         rwlock_acquire(&name##_lock_dep_map, 0, 0, _RET_IP_);           \
-        for_each_online_cpu(i) {                                        \
+        for_each_possible_cpu(i) {                                      \
                 arch_spinlock_t *lock;                                  \
                 lock = &per_cpu(name##_lock, i);                        \
                 arch_spin_lock(lock);                                   \
@@ -161,7 +161,7 @@
  void name##_global_unlock(void) {                                      \
         int i;                                                          \
         rwlock_release(&name##_lock_dep_map, 1, _RET_IP_);              \
-        for_each_online_cpu(i) {                                        \
+        for_each_possible_cpu(i) {                                      \
                 arch_spinlock_t *lock;                                  \
                 lock = &per_cpu(name##_lock, i);                        \
                 arch_spin_unlock(lock);                                 \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index f010f18a0f86..45fb2967b66d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -335,6 +335,7 @@ enum {
         ATA_EHI_HOTPLUGGED      = (1 << 0),  /* could have been hotplugged */
         ATA_EHI_NO_AUTOPSY      = (1 << 2),  /* no autopsy */
         ATA_EHI_QUIET           = (1 << 3),  /* be quiet */
+        ATA_EHI_NO_RECOVERY     = (1 << 4),  /* no recovery */
 
         ATA_EHI_DID_SOFTRESET   = (1 << 16), /* already soft-reset this port */
         ATA_EHI_DID_HARDRESET   = (1 << 17), /* already soft-reset this port */
@@ -723,6 +724,7 @@ struct ata_port {
         struct ata_ioports      ioaddr; /* ATA cmd/ctl/dma register blocks */
         u8                      ctl;    /* cache of ATA control register */
         u8                      last_ctl;       /* Cache last written value */
+        struct ata_link*        sff_pio_task_link; /* link currently used */
         struct delayed_work     sff_pio_task;
 #ifdef CONFIG_ATA_BMDMA
         struct ata_bmdma_prd    *bmdma_prd;     /* BMDMA SG list */
@@ -1594,7 +1596,7 @@ extern void ata_sff_irq_on(struct ata_port *ap);
 extern void ata_sff_irq_clear(struct ata_port *ap);
 extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
                             u8 status, int in_wq);
-extern void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay);
+extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay);
 extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc);
 extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc);
 extern unsigned int ata_sff_port_intr(struct ata_port *ap,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e6b1210772ce..74949fbef8c6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -864,6 +864,12 @@ int set_page_dirty(struct page *page);
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);
 
+/* Is the vma a continuation of the stack vma above it? */
+static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)
+{
+        return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
+}
+
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
                 unsigned long old_addr, struct vm_area_struct *new_vma,
                 unsigned long new_addr, unsigned long len);
diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 329a8faa6e37..245cdacee544 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -38,6 +38,8 @@
  *      [8:0] Byte/block count
  */
 
+#define R4_MEMORY_PRESENT (1 << 27)
+
 /*
   SDIO status in R5
   Type
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 6e6e62648a4d..3984c4eb41fd 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -284,6 +284,13 @@ struct zone {
         unsigned long watermark[NR_WMARK];
 
         /*
+         * When free pages are below this point, additional steps are taken
+         * when reading the number of free pages to avoid per-cpu counter
+         * drift allowing watermarks to be breached
+         */
+        unsigned long percpu_drift_mark;
+
+        /*
          * We don't know if the memory that we're going to allocate will be freeable
          * or/and it will be released eventually, so to avoid totally wasting several
          * GB of ram we must reserve some of the lower zone memory (otherwise we risk
@@ -441,6 +448,12 @@ static inline int zone_is_oom_locked(const struct zone *zone)
         return test_bit(ZONE_OOM_LOCKED, &zone->flags);
 }
 
+#ifdef CONFIG_SMP
+unsigned long zone_nr_free_pages(struct zone *zone);
+#else
+#define zone_nr_free_pages(zone) zone_page_state(zone, NR_FREE_PAGES)
+#endif /* CONFIG_SMP */
+
 /*
  * The "priority" of VM scanning is how much of the queues we will scan in one
  * go. A value of 12 for DEF_PRIORITY implies that we will scan 1/4096th of the
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 878cab4f5fcc..f363bc8fdc74 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -78,6 +78,14 @@ struct mutex_waiter {
 # include <linux/mutex-debug.h>
 #else
 # define __DEBUG_MUTEX_INITIALIZER(lockname)
+/**
+ * mutex_init - initialize the mutex
+ * @mutex: the mutex to be initialized
+ *
+ * Initialize the mutex to unlocked state.
+ *
+ * It is not allowed to initialize an already locked mutex.
+ */
 # define mutex_init(mutex) \
 do {                                                    \
         static struct lock_class_key __key;             \
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 59d066936ab9..123566912d73 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -27,8 +27,6 @@
 
 #define MAX_LINKS 32            
 
-struct net;
-
 struct sockaddr_nl {
         sa_family_t     nl_family;      /* AF_NETLINK   */
         unsigned short  nl_pad;         /* zero         */
@@ -151,6 +149,8 @@ struct nlattr {
 #include <linux/capability.h>
 #include <linux/skbuff.h>
 
+struct net;
+
 static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb)
 {
         return (struct nlmsghdr *)skb->data;
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 791d5109f34c..50d8009be86c 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -63,20 +63,20 @@ static inline bool netpoll_rx(struct sk_buff *skb)
         unsigned long flags;
         bool ret = false;
 
-        rcu_read_lock_bh();
+        local_irq_save(flags);
         npinfo = rcu_dereference_bh(skb->dev->npinfo);
 
         if (!npinfo || (list_empty(&npinfo->rx_np) && !npinfo->rx_flags))
                 goto out;
 
-        spin_lock_irqsave(&npinfo->rx_lock, flags);
+        spin_lock(&npinfo->rx_lock);
         /* check rx_flags again with the lock held */
         if (npinfo->rx_flags && __netpoll_rx(skb))
                 ret = true;
-        spin_unlock_irqrestore(&npinfo->rx_lock, flags);
+        spin_unlock(&npinfo->rx_lock);
 
 out:
-        rcu_read_unlock_bh();
+        local_irq_restore(flags);
         return ret;
 }
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index b1d17956a153..c8d95e369ff4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1214,6 +1214,9 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
                                                 unsigned int devfn)
 { return NULL; }
 
+static inline int pci_domain_nr(struct pci_bus *bus)
+{ return 0; }
+
 #define dev_is_pci(d) (false)
 #define dev_is_pf(d) (false)
 #define dev_num_vf(d) (0)
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index f6a3b2d36cad..570fddeb0388 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -393,6 +393,9 @@
 #define PCI_DEVICE_ID_VLSI_82C147       0x0105
 #define PCI_DEVICE_ID_VLSI_VAS96011     0x0702
 
+/* AMD RD890 Chipset */
+#define PCI_DEVICE_ID_RD890_IOMMU       0x5a23
+
 #define PCI_VENDOR_ID_ADL               0x1005
 #define PCI_DEVICE_ID_ADL_2301          0x2301
 
@@ -2300,6 +2303,8 @@
 #define PCI_DEVICE_ID_P2010             0x0079
 #define PCI_DEVICE_ID_P1020E            0x0100
 #define PCI_DEVICE_ID_P1020             0x0101
+#define PCI_DEVICE_ID_P1021E            0x0102
+#define PCI_DEVICE_ID_P1021             0x0103
 #define PCI_DEVICE_ID_P1011E            0x0108
 #define PCI_DEVICE_ID_P1011             0x0109
 #define PCI_DEVICE_ID_P1022E            0x0110
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index b8b9084527b1..49466b13c5c6 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -149,7 +149,7 @@ extern void __init percpu_init_late(void);
 
 #else /* CONFIG_SMP */
 
-#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })
+#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR((ptr)); })
 
 /* can't distinguish from other static vars, always false */
 static inline bool is_kernel_percpu_address(unsigned long addr)
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index d50ba858cfe0..d1a9193960f1 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -274,8 +274,14 @@ static inline int dquot_alloc_space(struct inode *inode, qsize_t nr)
         int ret;
 
         ret = dquot_alloc_space_nodirty(inode, nr);
-        if (!ret)
-                mark_inode_dirty_sync(inode);
+        if (!ret) {
+                /*
+                 * Mark inode fully dirty. Since we are allocating blocks, inode
+                 * would become fully dirty soon anyway and it reportedly
+                 * reduces inode_lock contention.
+                 */
+                mark_inode_dirty(inode);
+        }
         return ret;
 }
 
diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
index 7415839ac890..5310d27abd2a 100644
--- a/include/linux/semaphore.h
+++ b/include/linux/semaphore.h
@@ -26,6 +26,9 @@ struct semaphore {
         .wait_list      = LIST_HEAD_INIT((name).wait_list),             \
 }
 
+#define DEFINE_SEMAPHORE(name)  \
+        struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
+
 #define DECLARE_MUTEX(name)     \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
 
diff --git a/include/linux/serial.h b/include/linux/serial.h
index 1ebc694a6d52..ef914061511e 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -77,8 +77,7 @@ struct serial_struct {
 #define PORT_16654      11
 #define PORT_16850      12
 #define PORT_RSA        13      /* RSA-DV II/S card */
-#define PORT_U6_16550A  14
-#define PORT_MAX        14
+#define PORT_MAX        13
 
 #define SERIAL_IO_PORT  0
 #define SERIAL_IO_HUB6  1
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 64458a9a8938..563e23400913 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -44,7 +44,8 @@
 #define PORT_RM9000     16      /* PMC-Sierra RM9xxx internal UART */
 #define PORT_OCTEON     17      /* Cavium OCTEON internal UART */
 #define PORT_AR7        18      /* Texas Instruments AR7 internal UART */
-#define PORT_MAX_8250   18      /* max port ID */
+#define PORT_U6_16550A  19      /* ST-Ericsson U6xxx internal UART */
+#define PORT_MAX_8250   19      /* max port ID */
 
 /*
  * ARM specific type numbers.  These are not currently guaranteed
diff --git a/include/linux/socket.h b/include/linux/socket.h
index a2fada9becb6..a8f56e1ec760 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -322,7 +322,7 @@ extern int csum_partial_copy_fromiovecend(unsigned char *kdata,
                                           int offset, 
                                           unsigned int len, __wsum *csump);
 
-extern int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode);
+extern long verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode);
 extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len);
 extern int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata,
                              int offset, int len);
diff --git a/include/linux/spi/dw_spi.h b/include/linux/spi/dw_spi.h
index cc813f95a2f2..c91302f3a257 100644
--- a/include/linux/spi/dw_spi.h
+++ b/include/linux/spi/dw_spi.h
@@ -14,7 +14,9 @@
 #define SPI_MODE_OFFSET                 6
 #define SPI_SCPH_OFFSET                 6
 #define SPI_SCOL_OFFSET                 7
+
 #define SPI_TMOD_OFFSET                 8
+#define SPI_TMOD_MASK                   (0x3 << SPI_TMOD_OFFSET)
 #define SPI_TMOD_TR                     0x0             /* xmit & recv */
 #define SPI_TMOD_TO                     0x1             /* xmit only */
 #define SPI_TMOD_RO                     0x2             /* recv only */
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 569dc722a600..85f38a63f098 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -30,7 +30,7 @@ struct rpc_inode;
  * The high-level client handle
  */
 struct rpc_clnt {
-        struct kref             cl_kref;        /* Number of references */
+        atomic_t                cl_count;       /* Number of references */
         struct list_head        cl_clients;     /* Global list of clients */
         struct list_head        cl_tasks;       /* List of tasks */
         spinlock_t              cl_lock;        /* spinlock */
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 2fee51a11b73..7cdd63366f88 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -19,6 +19,7 @@ struct bio;
 #define SWAP_FLAG_PREFER        0x8000  /* set if swap priority specified */
 #define SWAP_FLAG_PRIO_MASK     0x7fff
 #define SWAP_FLAG_PRIO_SHIFT    0
+#define SWAP_FLAG_DISCARD       0x10000 /* discard swap cluster after use */
 
 static inline int current_is_kswapd(void)
 {
@@ -142,7 +143,7 @@ struct swap_extent {
 enum {
         SWP_USED        = (1 << 0),     /* is slot in swap_info[] used? */
         SWP_WRITEOK     = (1 << 1),     /* ok to write to this swap?    */
-        SWP_DISCARDABLE = (1 << 2),     /* blkdev supports discard */
+        SWP_DISCARDABLE = (1 << 2),     /* swapon+blkdev support discard */
         SWP_DISCARDING  = (1 << 3),     /* now discarding a free cluster */
         SWP_SOLIDSTATE  = (1 << 4),     /* blkdev seeks are cheap */
         SWP_CONTINUED   = (1 << 5),     /* swap_map has count continuation */
@@ -315,6 +316,7 @@ extern long nr_swap_pages;
 extern long total_swap_pages;
 extern void si_swapinfo(struct sysinfo *);
 extern swp_entry_t get_swap_page(void);
+extern swp_entry_t get_swap_page_of_type(int);
 extern int valid_swaphandles(swp_entry_t, unsigned long *);
 extern int add_swap_count_continuation(swp_entry_t, gfp_t);
 extern void swap_shmem_alloc(swp_entry_t);
@@ -331,13 +333,6 @@ extern int reuse_swap_page(struct page *);
 extern int try_to_free_swap(struct page *);
 struct backing_dev_info;
 
-#ifdef CONFIG_HIBERNATION
-void hibernation_freeze_swap(void);
-void hibernation_thaw_swap(void);
-swp_entry_t get_swap_for_hibernation(int type);
-void swap_free_for_hibernation(swp_entry_t val);
-#endif
-
 /* linux/mm/thrash.c */
 extern struct mm_struct *swap_token_mm;
 extern void grab_swap_token(struct mm_struct *);
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 7f43ccdc1d38..eaaea37b3b75 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -170,6 +170,28 @@ static inline unsigned long zone_page_state(struct zone *zone,
         return x;
 }
 
+/*
+ * More accurate version that also considers the currently pending
+ * deltas. For that we need to loop over all cpus to find the current
+ * deltas. There is no synchronization so the result cannot be
+ * exactly accurate either.
+ */
+static inline unsigned long zone_page_state_snapshot(struct zone *zone,
+                                        enum zone_stat_item item)
+{
+        long x = atomic_long_read(&zone->vm_stat[item]);
+
+#ifdef CONFIG_SMP
+        int cpu;
+        for_each_online_cpu(cpu)
+                x += per_cpu_ptr(zone->pageset, cpu)->vm_stat_diff[item];
+
+        if (x < 0)
+                x = 0;
+#endif
+        return x;
+}
+
 extern unsigned long global_reclaimable_pages(void);
 extern unsigned long zone_reclaimable_pages(struct zone *zone);
 
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 4f9d277bcd9a..25e02c941bac 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -25,18 +25,20 @@ typedef void (*work_func_t)(struct work_struct *work);
 
 enum {
         WORK_STRUCT_PENDING_BIT = 0,    /* work item is pending execution */
-        WORK_STRUCT_CWQ_BIT     = 1,    /* data points to cwq */
-        WORK_STRUCT_LINKED_BIT  = 2,    /* next work is linked to this one */
+        WORK_STRUCT_DELAYED_BIT = 1,    /* work item is delayed */
+        WORK_STRUCT_CWQ_BIT     = 2,    /* data points to cwq */
+        WORK_STRUCT_LINKED_BIT  = 3,    /* next work is linked to this one */
 #ifdef CONFIG_DEBUG_OBJECTS_WORK
-        WORK_STRUCT_STATIC_BIT  = 3,    /* static initializer (debugobjects) */
-        WORK_STRUCT_COLOR_SHIFT = 4,    /* color for workqueue flushing */
+        WORK_STRUCT_STATIC_BIT  = 4,    /* static initializer (debugobjects) */
+        WORK_STRUCT_COLOR_SHIFT = 5,    /* color for workqueue flushing */
 #else
-        WORK_STRUCT_COLOR_SHIFT = 3,    /* color for workqueue flushing */
+        WORK_STRUCT_COLOR_SHIFT = 4,    /* color for workqueue flushing */
 #endif
 
         WORK_STRUCT_COLOR_BITS  = 4,
 
         WORK_STRUCT_PENDING     = 1 << WORK_STRUCT_PENDING_BIT,
+        WORK_STRUCT_DELAYED     = 1 << WORK_STRUCT_DELAYED_BIT,
         WORK_STRUCT_CWQ         = 1 << WORK_STRUCT_CWQ_BIT,
         WORK_STRUCT_LINKED      = 1 << WORK_STRUCT_LINKED_BIT,
 #ifdef CONFIG_DEBUG_OBJECTS_WORK
@@ -59,8 +61,8 @@ enum {
 
         /*
          * Reserve 7 bits off of cwq pointer w/ debugobjects turned
-         * off.  This makes cwqs aligned to 128 bytes which isn't too
-         * excessive while allowing 15 workqueue flush colors.
+         * off.  This makes cwqs aligned to 256 bytes and allows 15
+         * workqueue flush colors.
          */
         WORK_STRUCT_FLAG_BITS   = WORK_STRUCT_COLOR_SHIFT +
                                   WORK_STRUCT_COLOR_BITS,
@@ -233,6 +235,10 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
 #define work_clear_pending(work) \
         clear_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(work))
 
+/*
+ * Workqueue flags and constants.  For details, please refer to
+ * Documentation/workqueue.txt.
+ */
 enum {
         WQ_NON_REENTRANT        = 1 << 0, /* guarantee non-reentrance */
         WQ_UNBOUND              = 1 << 1, /* not bound to any cpu */
@@ -241,6 +247,8 @@ enum {
         WQ_HIGHPRI              = 1 << 4, /* high priority */
         WQ_CPU_INTENSIVE        = 1 << 5, /* cpu instensive workqueue */
 
+        WQ_DYING                = 1 << 6, /* internal: workqueue is dying */
+
         WQ_MAX_ACTIVE           = 512,    /* I like 512, better ideas? */
         WQ_MAX_UNBOUND_PER_CPU  = 4,      /* 4 * #cpus for unbound wq */
         WQ_DFL_ACTIVE           = WQ_MAX_ACTIVE / 2,
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 45375b41a2a0..4d40c4d0230b 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -121,6 +121,7 @@ static inline int addrconf_finite_timeout(unsigned long timeout)
  *      IPv6 Address Label subsystem (addrlabel.c)
  */
 extern int                      ipv6_addr_label_init(void);
+extern void                     ipv6_addr_label_cleanup(void);
 extern void                     ipv6_addr_label_rtnl_register(void);
 extern u32                      ipv6_addr_label(struct net *net,
                                                 const struct in6_addr *addr,
diff --git a/include/net/cls_cgroup.h b/include/net/cls_cgroup.h
index 726cc3536409..ef6c24a529e1 100644
--- a/include/net/cls_cgroup.h
+++ b/include/net/cls_cgroup.h
@@ -27,11 +27,17 @@ struct cgroup_cls_state
 #ifdef CONFIG_NET_CLS_CGROUP
 static inline u32 task_cls_classid(struct task_struct *p)
 {
+        int classid;
+
         if (in_interrupt())
                 return 0;
 
-        return container_of(task_subsys_state(p, net_cls_subsys_id),
-                            struct cgroup_cls_state, css)->classid;
+        rcu_read_lock();
+        classid = container_of(task_subsys_state(p, net_cls_subsys_id),
+                               struct cgroup_cls_state, css)->classid;
+        rcu_read_unlock();
+
+        return classid;
 }
 #else
 extern int net_cls_subsys_id;
diff --git a/include/net/dst.h b/include/net/dst.h
index 81d1413a8701..02386505033d 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -242,6 +242,7 @@ static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
         dev->stats.rx_packets++;
         dev->stats.rx_bytes += skb->len;
         skb->rxhash = 0;
+        skb_set_queue_mapping(skb, 0);
         skb_dst_drop(skb);
         nf_reset(skb);
 }
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index a4747a0f7303..f976885f686f 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -955,6 +955,9 @@ static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
         return csum_partial(diff, sizeof(diff), oldsum);
 }
 
+extern void ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp,
+                                   int outin);
+
 #endif /* __KERNEL__ */
 
 #endif  /* _NET_IP_VS_H */
diff --git a/include/net/route.h b/include/net/route.h
index bd732d62e1c3..7e5e73bfa4de 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -199,6 +199,8 @@ static inline int ip_route_newports(struct rtable **rp, u8 protocol,
                 fl.fl_ip_sport = sport;
                 fl.fl_ip_dport = dport;
                 fl.proto = protocol;
+                if (inet_sk(sk)->transparent)
+                        fl.flags |= FLOWI_FLAG_ANYSRC;
                 ip_rt_put(*rp);
                 *rp = NULL;
                 security_sk_classify_flow(sk, &fl);
diff --git a/include/net/sock.h b/include/net/sock.h
index ac53bfbdfe16..adab9dc58183 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -752,6 +752,7 @@ struct proto {
         /* Keeping track of sk's, looking them up, and port selection methods. */
         void                    (*hash)(struct sock *sk);
         void                    (*unhash)(struct sock *sk);
+        void                    (*rehash)(struct sock *sk);
         int                     (*get_port)(struct sock *sk, unsigned short snum);
 
         /* Keeping track of sockets in use */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index eaa9582779d0..3e4b33e36602 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -475,8 +475,22 @@ extern unsigned int tcp_current_mss(struct sock *sk);
 /* Bound MSS / TSO packet size with the half of the window */
 static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize)
 {
-        if (tp->max_window && pktsize > (tp->max_window >> 1))
-                return max(tp->max_window >> 1, 68U - tp->tcp_header_len);
+        int cutoff;
+
+        /* When peer uses tiny windows, there is no use in packetizing
+         * to sub-MSS pieces for the sake of SWS or making sure there
+         * are enough packets in the pipe for fast recovery.
+         *
+         * On the other hand, for extremely large MSS devices, handling
+         * smaller than MSS windows in this way does make sense.
+         */
+        if (tp->max_window >= 512)
+                cutoff = (tp->max_window >> 1);
+        else
+                cutoff = tp->max_window;
+
+        if (cutoff && pktsize > cutoff)
+                return max_t(int, cutoff, 68U - tp->tcp_header_len);
         else
                 return pktsize;
 }
diff --git a/include/net/udp.h b/include/net/udp.h
index 7abdf305da50..a184d3496b13 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -151,6 +151,7 @@ static inline void udp_lib_hash(struct sock *sk)
 }
 
 extern void udp_lib_unhash(struct sock *sk);
+extern void udp_lib_rehash(struct sock *sk, u16 new_hash);
 
 static inline void udp_lib_close(struct sock *sk, long timeout)
 {
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index fc8f36dd0f5c..4f53532d4c2f 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -298,8 +298,8 @@ struct xfrm_state_afinfo {
         const struct xfrm_type  *type_map[IPPROTO_MAX];
         struct xfrm_mode        *mode_map[XFRM_MODE_MAX];
         int                     (*init_flags)(struct xfrm_state *x);
-        void                    (*init_tempsel)(struct xfrm_state *x, struct flowi *fl,
-                                                struct xfrm_tmpl *tmpl,
+        void                    (*init_tempsel)(struct xfrm_selector *sel, struct flowi *fl);
+        void                    (*init_temprop)(struct xfrm_state *x, struct xfrm_tmpl *tmpl,
                                                 xfrm_address_t *daddr, xfrm_address_t *saddr);
         int                     (*tmpl_sort)(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n);
         int                     (*state_sort)(struct xfrm_state **dst, struct xfrm_state **src, int n);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 192f88c5b0f9..c9483d8f6140 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1791,19 +1791,20 @@ out:
 }
 
 /**
- * cgroup_attach_task_current_cg - attach task 'tsk' to current task's cgroup
+ * cgroup_attach_task_all - attach task 'tsk' to all cgroups of task 'from'
+ * @from: attach to all cgroups of a given task
  * @tsk: the task to be attached
  */
-int cgroup_attach_task_current_cg(struct task_struct *tsk)
+int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk)
 {
         struct cgroupfs_root *root;
-        struct cgroup *cur_cg;
         int retval = 0;
 
         cgroup_lock();
         for_each_active_root(root) {
-                cur_cg = task_cgroup_from_root(current, root);
-                retval = cgroup_attach_task(cur_cg, tsk);
+                struct cgroup *from_cg = task_cgroup_from_root(from, root);
+
+                retval = cgroup_attach_task(from_cg, tsk);
                 if (retval)
                         break;
         }
@@ -1811,7 +1812,7 @@ int cgroup_attach_task_current_cg(struct task_struct *tsk)
 
         return retval;
 }
-EXPORT_SYMBOL_GPL(cgroup_attach_task_current_cg);
+EXPORT_SYMBOL_GPL(cgroup_attach_task_all);
 
 /*
  * Attach task with pid 'pid' to cgroup 'cgrp'. Call with cgroup_mutex
diff --git a/kernel/compat.c b/kernel/compat.c
index e167efce8423..c9e2ec0b34a8 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -1126,3 +1126,24 @@ compat_sys_sysinfo(struct compat_sysinfo __user *info)
 
         return 0;
 }
+
+/*
+ * Allocate user-space memory for the duration of a single system call,
+ * in order to marshall parameters inside a compat thunk.
+ */
+void __user *compat_alloc_user_space(unsigned long len)
+{
+        void __user *ptr;
+
+        /* If len would occupy more than half of the entire compat space... */
+        if (unlikely(len > (((compat_uptr_t)~0) >> 1)))
+                return NULL;
+
+        ptr = arch_compat_alloc_user_space(len);
+
+        if (unlikely(!access_ok(VERIFY_WRITE, ptr, len)))
+                return NULL;
+
+        return ptr;
+}
+EXPORT_SYMBOL_GPL(compat_alloc_user_space);
diff --git a/kernel/debug/kdb/kdb_bp.c b/kernel/debug/kdb/kdb_bp.c
index 75bd9b3ebbb7..20059ef4459a 100644
--- a/kernel/debug/kdb/kdb_bp.c
+++ b/kernel/debug/kdb/kdb_bp.c
@@ -274,7 +274,6 @@ static int kdb_bp(int argc, const char **argv)
         int i, bpno;
         kdb_bp_t *bp, *bp_check;
         int diag;
-        int free;
         char *symname = NULL;
         long offset = 0ul;
         int nextarg;
@@ -305,7 +304,6 @@ static int kdb_bp(int argc, const char **argv)
         /*
          * Find an empty bp structure to allocate
          */
-        free = KDB_MAXBPT;
         for (bpno = 0, bp = kdb_breakpoints; bpno < KDB_MAXBPT; bpno++, bp++) {
                 if (bp->bp_free)
                         break;
diff --git a/kernel/fork.c b/kernel/fork.c
index b7e9d60a675d..c445f8cc408d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -356,10 +356,10 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                 if (IS_ERR(pol))
                         goto fail_nomem_policy;
                 vma_set_policy(tmp, pol);
+                tmp->vm_mm = mm;
                 if (anon_vma_fork(tmp, mpnt))
                         goto fail_nomem_anon_vma_fork;
                 tmp->vm_flags &= ~VM_LOCKED;
-                tmp->vm_mm = mm;
                 tmp->vm_next = tmp->vm_prev = NULL;
                 file = tmp->vm_file;
                 if (file) {
diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index ef3c3f88a7a3..f83972b16564 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -33,10 +33,11 @@
  * @children: child nodes
  * @all: list head for list of all nodes
  * @parent: parent node
- * @info: associated profiling data structure if not a directory
- * @ghost: when an object file containing profiling data is unloaded we keep a
- *         copy of the profiling data here to allow collecting coverage data
- *         for cleanup code. Such a node is called a "ghost".
+ * @loaded_info: array of pointers to profiling data sets for loaded object
+ *   files.
+ * @num_loaded: number of profiling data sets for loaded object files.
+ * @unloaded_info: accumulated copy of profiling data sets for unloaded
+ *   object files. Used only when gcov_persist=1.
  * @dentry: main debugfs entry, either a directory or data file
  * @links: associated symbolic links
  * @name: data file basename
@@ -51,10 +52,11 @@ struct gcov_node {
         struct list_head children;
         struct list_head all;
         struct gcov_node *parent;
-        struct gcov_info *info;
-        struct gcov_info *ghost;
+        struct gcov_info **loaded_info;
+        struct gcov_info *unloaded_info;
         struct dentry *dentry;
         struct dentry **links;
+        int num_loaded;
         char name[0];
 };
 
@@ -136,16 +138,37 @@ static const struct seq_operations gcov_seq_ops = {
 };
 
 /*
- * Return the profiling data set for a given node. This can either be the
- * original profiling data structure or a duplicate (also called "ghost")
- * in case the associated object file has been unloaded.
+ * Return a profiling data set associated with the given node. This is
+ * either a data set for a loaded object file or a data set copy in case
+ * all associated object files have been unloaded.
  */
 static struct gcov_info *get_node_info(struct gcov_node *node)
 {
-        if (node->info)
-                return node->info;
+        if (node->num_loaded > 0)
+                return node->loaded_info[0];
 
-        return node->ghost;
+        return node->unloaded_info;
+}
+
+/*
+ * Return a newly allocated profiling data set which contains the sum of
+ * all profiling data associated with the given node.
+ */
+static struct gcov_info *get_accumulated_info(struct gcov_node *node)
+{
+        struct gcov_info *info;
+        int i = 0;
+
+        if (node->unloaded_info)
+                info = gcov_info_dup(node->unloaded_info);
+        else
+                info = gcov_info_dup(node->loaded_info[i++]);
+        if (!info)
+                return NULL;
+        for (; i < node->num_loaded; i++)
+                gcov_info_add(info, node->loaded_info[i]);
+
+        return info;
 }
 
 /*
@@ -163,9 +186,10 @@ static int gcov_seq_open(struct inode *inode, struct file *file)
         mutex_lock(&node_lock);
         /*
          * Read from a profiling data copy to minimize reference tracking
-         * complexity and concurrent access.
+         * complexity and concurrent access and to keep accumulating multiple
+         * profiling data sets associated with one node simple.
          */
-        info = gcov_info_dup(get_node_info(node));
+        info = get_accumulated_info(node);
         if (!info)
                 goto out_unlock;
         iter = gcov_iter_new(info);
@@ -225,12 +249,25 @@ static struct gcov_node *get_node_by_name(const char *name)
         return NULL;
 }
 
+/*
+ * Reset all profiling data associated with the specified node.
+ */
+static void reset_node(struct gcov_node *node)
+{
+        int i;
+
+        if (node->unloaded_info)
+                gcov_info_reset(node->unloaded_info);
+        for (i = 0; i < node->num_loaded; i++)
+                gcov_info_reset(node->loaded_info[i]);
+}
+
 static void remove_node(struct gcov_node *node);
 
 /*
  * write() implementation for gcov data files. Reset profiling data for the
- * associated file. If the object file has been unloaded (i.e. this is
- * a "ghost" node), remove the debug fs node as well.
+ * corresponding file. If all associated object files have been unloaded,
+ * remove the debug fs node as well.
  */
 static ssize_t gcov_seq_write(struct file *file, const char __user *addr,
                               size_t len, loff_t *pos)
@@ -245,10 +282,10 @@ static ssize_t gcov_seq_write(struct file *file, const char __user *addr,
         node = get_node_by_name(info->filename);
         if (node) {
                 /* Reset counts or remove node for unloaded modules. */
-                if (node->ghost)
+                if (node->num_loaded == 0)
                         remove_node(node);
                 else
-                        gcov_info_reset(node->info);
+                        reset_node(node);
         }
         /* Reset counts for open file. */
         gcov_info_reset(info);
@@ -378,7 +415,10 @@ static void init_node(struct gcov_node *node, struct gcov_info *info,
         INIT_LIST_HEAD(&node->list);
         INIT_LIST_HEAD(&node->children);
         INIT_LIST_HEAD(&node->all);
-        node->info = info;
+        if (node->loaded_info) {
+                node->loaded_info[0] = info;
+                node->num_loaded = 1;
+        }
         node->parent = parent;
         if (name)
                 strcpy(node->name, name);
@@ -394,9 +434,13 @@ static struct gcov_node *new_node(struct gcov_node *parent,
         struct gcov_node *node;
 
         node = kzalloc(sizeof(struct gcov_node) + strlen(name) + 1, GFP_KERNEL);
-        if (!node) {
-                pr_warning("out of memory\n");
-                return NULL;
+        if (!node)
+                goto err_nomem;
+        if (info) {
+                node->loaded_info = kcalloc(1, sizeof(struct gcov_info *),
+                                           GFP_KERNEL);
+                if (!node->loaded_info)
+                        goto err_nomem;
         }
         init_node(node, info, name, parent);
         /* Differentiate between gcov data file nodes and directory nodes. */
@@ -416,6 +460,11 @@ static struct gcov_node *new_node(struct gcov_node *parent,
         list_add(&node->all, &all_head);
 
         return node;
+
+err_nomem:
+        kfree(node);
+        pr_warning("out of memory\n");
+        return NULL;
 }
 
 /* Remove symbolic links associated with node. */
@@ -441,8 +490,9 @@ static void release_node(struct gcov_node *node)
         list_del(&node->all);
         debugfs_remove(node->dentry);
         remove_links(node);
-        if (node->ghost)
-                gcov_info_free(node->ghost);
+        kfree(node->loaded_info);
+        if (node->unloaded_info)
+                gcov_info_free(node->unloaded_info);
         kfree(node);
 }
 
@@ -477,7 +527,7 @@ static struct gcov_node *get_child_by_name(struct gcov_node *parent,
 
 /*
  * write() implementation for reset file. Reset all profiling data to zero
- * and remove ghost nodes.
+ * and remove nodes for which all associated object files are unloaded.
  */
 static ssize_t reset_write(struct file *file, const char __user *addr,
                            size_t len, loff_t *pos)
@@ -487,8 +537,8 @@ static ssize_t reset_write(struct file *file, const char __user *addr,
         mutex_lock(&node_lock);
 restart:
         list_for_each_entry(node, &all_head, all) {
-                if (node->info)
-                        gcov_info_reset(node->info);
+                if (node->num_loaded > 0)
+                        reset_node(node);
                 else if (list_empty(&node->children)) {
                         remove_node(node);
                         /* Several nodes may have gone - restart loop. */
@@ -564,37 +614,115 @@ err_remove:
 }
 
 /*
- * The profiling data set associated with this node is being unloaded. Store a
- * copy of the profiling data and turn this node into a "ghost".
+ * Associate a profiling data set with an existing node. Needs to be called
+ * with node_lock held.
  */
-static int ghost_node(struct gcov_node *node)
+static void add_info(struct gcov_node *node, struct gcov_info *info)
 {
-        node->ghost = gcov_info_dup(node->info);
-        if (!node->ghost) {
-                pr_warning("could not save data for '%s' (out of memory)\n",
-                           node->info->filename);
-                return -ENOMEM;
+        struct gcov_info **loaded_info;
+        int num = node->num_loaded;
+
+        /*
+         * Prepare new array. This is done first to simplify cleanup in
+         * case the new data set is incompatible, the node only contains
+         * unloaded data sets and there's not enough memory for the array.
+         */
+        loaded_info = kcalloc(num + 1, sizeof(struct gcov_info *), GFP_KERNEL);
+        if (!loaded_info) {
+                pr_warning("could not add '%s' (out of memory)\n",
+                           info->filename);
+                return;
+        }
+        memcpy(loaded_info, node->loaded_info,
+               num * sizeof(struct gcov_info *));
+        loaded_info[num] = info;
+        /* Check if the new data set is compatible. */
+        if (num == 0) {
+                /*
+                 * A module was unloaded, modified and reloaded. The new
+                 * data set replaces the copy of the last one.
+                 */
+                if (!gcov_info_is_compatible(node->unloaded_info, info)) {
+                        pr_warning("discarding saved data for %s "
+                                   "(incompatible version)\n", info->filename);
+                        gcov_info_free(node->unloaded_info);
+                        node->unloaded_info = NULL;
+                }
+        } else {
+                /*
+                 * Two different versions of the same object file are loaded.
+                 * The initial one takes precedence.
+                 */
+                if (!gcov_info_is_compatible(node->loaded_info[0], info)) {
+                        pr_warning("could not add '%s' (incompatible "
+                                   "version)\n", info->filename);
+                        kfree(loaded_info);
+                        return;
+                }
         }
-        node->info = NULL;
+        /* Overwrite previous array. */
+        kfree(node->loaded_info);
+        node->loaded_info = loaded_info;
+        node->num_loaded = num + 1;
+}
 
-        return 0;
+/*
+ * Return the index of a profiling data set associated with a node.
+ */
+static int get_info_index(struct gcov_node *node, struct gcov_info *info)
+{
+        int i;
+
+        for (i = 0; i < node->num_loaded; i++) {
+                if (node->loaded_info[i] == info)
+                        return i;
+        }
+        return -ENOENT;
 }
 
 /*
- * Profiling data for this node has been loaded again. Add profiling data
- * from previous instantiation and turn this node into a regular node.
+ * Save the data of a profiling data set which is being unloaded.
  */
-static void revive_node(struct gcov_node *node, struct gcov_info *info)
+static void save_info(struct gcov_node *node, struct gcov_info *info)
 {
-        if (gcov_info_is_compatible(node->ghost, info))
-                gcov_info_add(info, node->ghost);
+        if (node->unloaded_info)
+                gcov_info_add(node->unloaded_info, info);
         else {
-                pr_warning("discarding saved data for '%s' (version changed)\n",
+                node->unloaded_info = gcov_info_dup(info);
+                if (!node->unloaded_info) {
+                        pr_warning("could not save data for '%s' "
+                                   "(out of memory)\n", info->filename);
+                }
+        }
+}
+
+/*
+ * Disassociate a profiling data set from a node. Needs to be called with
+ * node_lock held.
+ */
+static void remove_info(struct gcov_node *node, struct gcov_info *info)
+{
+        int i;
+
+        i = get_info_index(node, info);
+        if (i < 0) {
+                pr_warning("could not remove '%s' (not found)\n",
                            info->filename);
+                return;
         }
-        gcov_info_free(node->ghost);
-        node->ghost = NULL;
-        node->info = info;
+        if (gcov_persist)
+                save_info(node, info);
+        /* Shrink array. */
+        node->loaded_info[i] = node->loaded_info[node->num_loaded - 1];
+        node->num_loaded--;
+        if (node->num_loaded > 0)
+                return;
+        /* Last loaded data set was removed. */
+        kfree(node->loaded_info);
+        node->loaded_info = NULL;
+        node->num_loaded = 0;
+        if (!node->unloaded_info)
+                remove_node(node);
 }
 
 /*
@@ -609,30 +737,18 @@ void gcov_event(enum gcov_action action, struct gcov_info *info)
         node = get_node_by_name(info->filename);
         switch (action) {
         case GCOV_ADD:
-                /* Add new node or revive ghost. */
-                if (!node) {
+                if (node)
+                        add_info(node, info);
+                else
                         add_node(info);
-                        break;
-                }
-                if (gcov_persist)
-                        revive_node(node, info);
-                else {
-                        pr_warning("could not add '%s' (already exists)\n",
-                                   info->filename);
-                }
                 break;
         case GCOV_REMOVE:
-                /* Remove node or turn into ghost. */
-                if (!node) {
+                if (node)
+                        remove_info(node, info);
+                else {
                         pr_warning("could not remove '%s' (not found)\n",
                                    info->filename);
-                        break;
                 }
-                if (gcov_persist) {
-                        if (!ghost_node(node))
-                                break;
-                }
-                remove_node(node);
                 break;
         }
         mutex_unlock(&node_lock);
diff --git a/kernel/groups.c b/kernel/groups.c
index 53b1916c9492..253dc0f35cf4 100644
--- a/kernel/groups.c
+++ b/kernel/groups.c
@@ -143,10 +143,9 @@ int groups_search(const struct group_info *group_info, gid_t grp)
         right = group_info->ngroups;
         while (left < right) {
                 unsigned int mid = (left+right)/2;
-                int cmp = grp - GROUP_AT(group_info, mid);
-                if (cmp > 0)
+                if (grp > GROUP_AT(group_info, mid))
                         left = mid + 1;
-                else if (cmp < 0)
+                else if (grp < GROUP_AT(group_info, mid))
                         right = mid;
                 else
                         return 1;
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index ce669174f355..1decafbb6b1a 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1091,11 +1091,10 @@ EXPORT_SYMBOL_GPL(hrtimer_cancel);
  */
 ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
 {
-        struct hrtimer_clock_base *base;
         unsigned long flags;
         ktime_t rem;
 
-        base = lock_hrtimer_base(timer, &flags);
+        lock_hrtimer_base(timer, &flags);
         rem = hrtimer_expires_remaining(timer);
         unlock_hrtimer_base(timer, &flags);
 
diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index d71a987fd2bf..c7c2aed9e2dc 100644
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -433,7 +433,8 @@ register_user_hw_breakpoint(struct perf_event_attr *attr,
                             perf_overflow_handler_t triggered,
                             struct task_struct *tsk)
 {
-        return perf_event_create_kernel_counter(attr, -1, tsk->pid, triggered);
+        return perf_event_create_kernel_counter(attr, -1, task_pid_vnr(tsk),
+                                                triggered);
 }
 EXPORT_SYMBOL_GPL(register_user_hw_breakpoint);
 
diff --git a/kernel/mutex.c b/kernel/mutex.c
index 4c0b7b3e6d2e..200407c1502f 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -36,15 +36,6 @@
 # include <asm/mutex.h>
 #endif
 
-/***
- * mutex_init - initialize the mutex
- * @lock: the mutex to be initialized
- * @key: the lock_class_key for the class; used by mutex lock debugging
- *
- * Initialize the mutex to unlocked state.
- *
- * It is not allowed to initialize an already locked mutex.
- */
 void
 __mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key)
 {
@@ -68,7 +59,7 @@ EXPORT_SYMBOL(__mutex_init);
 static __used noinline void __sched
 __mutex_lock_slowpath(atomic_t *lock_count);
 
-/***
+/**
  * mutex_lock - acquire the mutex
  * @lock: the mutex to be acquired
  *
@@ -105,7 +96,7 @@ EXPORT_SYMBOL(mutex_lock);
 
 static __used noinline void __sched __mutex_unlock_slowpath(atomic_t *lock_count);
 
-/***
+/**
  * mutex_unlock - release the mutex
  * @lock: the mutex to be released
  *
@@ -364,8 +355,8 @@ __mutex_lock_killable_slowpath(atomic_t *lock_count);
 static noinline int __sched
 __mutex_lock_interruptible_slowpath(atomic_t *lock_count);
 
-/***
- * mutex_lock_interruptible - acquire the mutex, interruptable
+/**
+ * mutex_lock_interruptible - acquire the mutex, interruptible
  * @lock: the mutex to be acquired
  *
  * Lock the mutex like mutex_lock(), and return 0 if the mutex has
@@ -456,15 +447,15 @@ static inline int __mutex_trylock_slowpath(atomic_t *lock_count)
         return prev == 1;
 }
 
-/***
- * mutex_trylock - try acquire the mutex, without waiting
+/**
+ * mutex_trylock - try to acquire the mutex, without waiting
  * @lock: the mutex to be acquired
  *
  * Try to acquire the mutex atomically. Returns 1 if the mutex
  * has been acquired successfully, and 0 on contention.
  *
  * NOTE: this function follows the spin_trylock() convention, so
- * it is negated to the down_trylock() return values! Be careful
+ * it is negated from the down_trylock() return values! Be careful
  * about this when converting semaphore users to mutexes.
  *
  * This function must not be used in interrupt context. The
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 403d1804b198..db5b56064687 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -402,11 +402,31 @@ static void perf_group_detach(struct perf_event *event)
         }
 }
 
+static inline int
+event_filter_match(struct perf_event *event)
+{
+        return event->cpu == -1 || event->cpu == smp_processor_id();
+}
+
 static void
 event_sched_out(struct perf_event *event,
                   struct perf_cpu_context *cpuctx,
                   struct perf_event_context *ctx)
 {
+        u64 delta;
+        /*
+         * An event which could not be activated because of
+         * filter mismatch still needs to have its timings
+         * maintained, otherwise bogus information is return
+         * via read() for time_enabled, time_running:
+         */
+        if (event->state == PERF_EVENT_STATE_INACTIVE
+            && !event_filter_match(event)) {
+                delta = ctx->time - event->tstamp_stopped;
+                event->tstamp_running += delta;
+                event->tstamp_stopped = ctx->time;
+        }
+
         if (event->state != PERF_EVENT_STATE_ACTIVE)
                 return;
 
@@ -432,9 +452,7 @@ group_sched_out(struct perf_event *group_event,
                 struct perf_event_context *ctx)
 {
         struct perf_event *event;
-
-        if (group_event->state != PERF_EVENT_STATE_ACTIVE)
-                return;
+        int state = group_event->state;
 
         event_sched_out(group_event, cpuctx, ctx);
 
@@ -444,7 +462,7 @@ group_sched_out(struct perf_event *group_event,
         list_for_each_entry(event, &group_event->sibling_list, group_entry)
                 event_sched_out(event, cpuctx, ctx);
 
-        if (group_event->attr.exclusive)
+        if (state == PERF_EVENT_STATE_ACTIVE && group_event->attr.exclusive)
                 cpuctx->exclusive = 0;
 }
 
@@ -5743,15 +5761,15 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
 {
         unsigned int cpu = (long)hcpu;
 
-        switch (action) {
+        switch (action & ~CPU_TASKS_FROZEN) {
 
         case CPU_UP_PREPARE:
-        case CPU_UP_PREPARE_FROZEN:
+        case CPU_DOWN_FAILED:
                 perf_event_init_cpu(cpu);
                 break;
 
+        case CPU_UP_CANCELED:
         case CPU_DOWN_PREPARE:
-        case CPU_DOWN_PREPARE_FROZEN:
                 perf_event_exit_cpu(cpu);
                 break;
 
diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c
index b7e4c362361b..645e541a45f6 100644
--- a/kernel/pm_qos_params.c
+++ b/kernel/pm_qos_params.c
@@ -389,10 +389,12 @@ static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
         } else if (count == 11) { /* len('0x12345678/0') */
                 if (copy_from_user(ascii_value, buf, 11))
                         return -EFAULT;
+                if (strlen(ascii_value) != 10)
+                        return -EINVAL;
                 x = sscanf(ascii_value, "%x", &value);
                 if (x != 1)
                         return -EINVAL;
-                pr_debug(KERN_ERR "%s, %d, 0x%x\n", ascii_value, x, value);
+                pr_debug("%s, %d, 0x%x\n", ascii_value, x, value);
         } else
                 return -EINVAL;
 
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index c77963938bca..8dc31e02ae12 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -338,7 +338,6 @@ int hibernation_snapshot(int platform_mode)
                 goto Close;
 
         suspend_console();
-        hibernation_freeze_swap();
         saved_mask = clear_gfp_allowed_mask(GFP_IOFS);
         error = dpm_suspend_start(PMSG_FREEZE);
         if (error)
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 5e7edfb05e66..d3f795f01bbc 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1086,7 +1086,6 @@ void swsusp_free(void)
         buffer = NULL;
         alloc_normal = 0;
         alloc_highmem = 0;
-        hibernation_thaw_swap();
 }
 
 /* Helper functions used for the shrinking of memory. */
@@ -1122,9 +1121,19 @@ static unsigned long preallocate_image_pages(unsigned long nr_pages, gfp_t mask)
         return nr_alloc;
 }
 
-static unsigned long preallocate_image_memory(unsigned long nr_pages)
+static unsigned long preallocate_image_memory(unsigned long nr_pages,
+                                              unsigned long avail_normal)
 {
-        return preallocate_image_pages(nr_pages, GFP_IMAGE);
+        unsigned long alloc;
+
+        if (avail_normal <= alloc_normal)
+                return 0;
+
+        alloc = avail_normal - alloc_normal;
+        if (nr_pages < alloc)
+                alloc = nr_pages;
+
+        return preallocate_image_pages(alloc, GFP_IMAGE);
 }
 
 #ifdef CONFIG_HIGHMEM
@@ -1170,15 +1179,22 @@ static inline unsigned long preallocate_highmem_fraction(unsigned long nr_pages,
  */
 static void free_unnecessary_pages(void)
 {
-        unsigned long save_highmem, to_free_normal, to_free_highmem;
+        unsigned long save, to_free_normal, to_free_highmem;
 
-        to_free_normal = alloc_normal - count_data_pages();
-        save_highmem = count_highmem_pages();
-        if (alloc_highmem > save_highmem) {
-                to_free_highmem = alloc_highmem - save_highmem;
+        save = count_data_pages();
+        if (alloc_normal >= save) {
+                to_free_normal = alloc_normal - save;
+                save = 0;
+        } else {
+                to_free_normal = 0;
+                save -= alloc_normal;
+        }
+        save += count_highmem_pages();
+        if (alloc_highmem >= save) {
+                to_free_highmem = alloc_highmem - save;
         } else {
                 to_free_highmem = 0;
-                to_free_normal -= save_highmem - alloc_highmem;
+                to_free_normal -= save - alloc_highmem;
         }
 
         memory_bm_position_reset(&copy_bm);
@@ -1259,7 +1275,7 @@ int hibernate_preallocate_memory(void)
 {
         struct zone *zone;
         unsigned long saveable, size, max_size, count, highmem, pages = 0;
-        unsigned long alloc, save_highmem, pages_highmem;
+        unsigned long alloc, save_highmem, pages_highmem, avail_normal;
         struct timeval start, stop;
         int error;
 
@@ -1296,6 +1312,7 @@ int hibernate_preallocate_memory(void)
                 else
                         count += zone_page_state(zone, NR_FREE_PAGES);
         }
+        avail_normal = count;
         count += highmem;
         count -= totalreserve_pages;
 
@@ -1310,12 +1327,21 @@ int hibernate_preallocate_memory(void)
          */
         if (size >= saveable) {
                 pages = preallocate_image_highmem(save_highmem);
-                pages += preallocate_image_memory(saveable - pages);
+                pages += preallocate_image_memory(saveable - pages, avail_normal);
                 goto out;
         }
 
         /* Estimate the minimum size of the image. */
         pages = minimum_image_size(saveable);
+        /*
+         * To avoid excessive pressure on the normal zone, leave room in it to
+         * accommodate an image of the minimum size (unless it's already too
+         * small, in which case don't preallocate pages from it at all).
+         */
+        if (avail_normal > pages)
+                avail_normal -= pages;
+        else
+                avail_normal = 0;
         if (size < pages)
                 size = min_t(unsigned long, pages, max_size);
 
@@ -1336,16 +1362,34 @@ int hibernate_preallocate_memory(void)
          */
         pages_highmem = preallocate_image_highmem(highmem / 2);
         alloc = (count - max_size) - pages_highmem;
-        pages = preallocate_image_memory(alloc);
-        if (pages < alloc)
-                goto err_out;
-        size = max_size - size;
-        alloc = size;
-        size = preallocate_highmem_fraction(size, highmem, count);
-        pages_highmem += size;
-        alloc -= size;
-        pages += preallocate_image_memory(alloc);
-        pages += pages_highmem;
+        pages = preallocate_image_memory(alloc, avail_normal);
+        if (pages < alloc) {
+                /* We have exhausted non-highmem pages, try highmem. */
+                alloc -= pages;
+                pages += pages_highmem;
+                pages_highmem = preallocate_image_highmem(alloc);
+                if (pages_highmem < alloc)
+                        goto err_out;
+                pages += pages_highmem;
+                /*
+                 * size is the desired number of saveable pages to leave in
+                 * memory, so try to preallocate (all memory - size) pages.
+                 */
+                alloc = (count - pages) - size;
+                pages += preallocate_image_highmem(alloc);
+        } else {
+                /*
+                 * There are approximately max_size saveable pages at this point
+                 * and we want to reduce this number down to size.
+                 */
+                alloc = max_size - size;
+                size = preallocate_highmem_fraction(alloc, highmem, count);
+                pages_highmem += size;
+                alloc -= size;
+                size = preallocate_image_memory(alloc, avail_normal);
+                pages_highmem += preallocate_image_highmem(alloc - size);
+                pages += pages_highmem + size;
+        }
 
         /*
          * We only need as many page frames for the image as there are saveable
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 5d0059eed3e4..e6a5bdf61a37 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -136,10 +136,10 @@ sector_t alloc_swapdev_block(int swap)
 {
         unsigned long offset;
 
-        offset = swp_offset(get_swap_for_hibernation(swap));
+        offset = swp_offset(get_swap_page_of_type(swap));
         if (offset) {
                 if (swsusp_extents_insert(offset))
-                        swap_free_for_hibernation(swp_entry(swap, offset));
+                        swap_free(swp_entry(swap, offset));
                 else
                         return swapdev_block(swap, offset);
         }
@@ -163,7 +163,7 @@ void free_all_swap_pages(int swap)
                 ext = container_of(node, struct swsusp_extent, node);
                 rb_erase(node, &swsusp_extents);
                 for (offset = ext->start; offset <= ext->end; offset++)
-                        swap_free_for_hibernation(swp_entry(swap, offset));
+                        swap_free(swp_entry(swap, offset));
 
                 kfree(ext);
         }
diff --git a/kernel/sched.c b/kernel/sched.c
index 09b574e7f4df..dc85ceb90832 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1294,6 +1294,10 @@ static void resched_task(struct task_struct *p)
 static void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
 {
 }
+
+static void sched_avg_update(struct rq *rq)
+{
+}
 #endif /* CONFIG_SMP */
 
 #if BITS_PER_LONG == 32
@@ -3182,6 +3186,8 @@ static void update_cpu_load(struct rq *this_rq)
 
                 this_rq->cpu_load[i] = (old_load * (scale - 1) + new_load) >> i;
         }
+
+        sched_avg_update(this_rq);
 }
 
 static void update_cpu_load_active(struct rq *this_rq)
@@ -3507,9 +3513,9 @@ void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
         rtime = nsecs_to_cputime(p->se.sum_exec_runtime);
 
         if (total) {
-                u64 temp;
+                u64 temp = rtime;
 
-                temp = (u64)(rtime * utime);
+                temp *= utime;
                 do_div(temp, total);
                 utime = (cputime_t)temp;
         } else
@@ -3540,9 +3546,9 @@ void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
         rtime = nsecs_to_cputime(cputime.sum_exec_runtime);
 
         if (total) {
-                u64 temp;
+                u64 temp = rtime;
 
-                temp = (u64)(rtime * cputime.utime);
+                temp *= cputime.utime;
                 do_div(temp, total);
                 utime = (cputime_t)temp;
         } else
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index ab661ebc4895..db3f674ca49d 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -54,13 +54,13 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling
  * Minimal preemption granularity for CPU-bound tasks:
  * (default: 2 msec * (1 + ilog(ncpus)), units: nanoseconds)
  */
-unsigned int sysctl_sched_min_granularity = 2000000ULL;
-unsigned int normalized_sysctl_sched_min_granularity = 2000000ULL;
+unsigned int sysctl_sched_min_granularity = 750000ULL;
+unsigned int normalized_sysctl_sched_min_granularity = 750000ULL;
 
 /*
  * is kept at sysctl_sched_latency / sysctl_sched_min_granularity
  */
-static unsigned int sched_nr_latency = 3;
+static unsigned int sched_nr_latency = 8;
 
 /*
  * After fork, child runs first. If set to 0 (default) then
@@ -1313,7 +1313,7 @@ static struct sched_group *
 find_idlest_group(struct sched_domain *sd, struct task_struct *p,
                   int this_cpu, int load_idx)
 {
-        struct sched_group *idlest = NULL, *this = NULL, *group = sd->groups;
+        struct sched_group *idlest = NULL, *group = sd->groups;
         unsigned long min_load = ULONG_MAX, this_load = 0;
         int imbalance = 100 + (sd->imbalance_pct-100)/2;
 
@@ -1348,7 +1348,6 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p,
 
                 if (local_group) {
                         this_load = avg_load;
-                        this = group;
                 } else if (avg_load < min_load) {
                         min_load = avg_load;
                         idlest = group;
@@ -2268,8 +2267,6 @@ unsigned long scale_rt_power(int cpu)
         struct rq *rq = cpu_rq(cpu);
         u64 total, available;
 
-        sched_avg_update(rq);
-
         total = sched_avg_period() + (rq->clock - rq->age_stamp);
         available = total - rq->rt_avg;
 
@@ -3633,7 +3630,7 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
         if (time_before(now, nohz.next_balance))
                 return 0;
 
-        if (!rq->nr_running)
+        if (rq->idle_at_tick)
                 return 0;
 
         first_pick_cpu = atomic_read(&nohz.first_pick_cpu);
diff --git a/kernel/sys.c b/kernel/sys.c
index e9ad44489828..7f5a0cd296a9 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -931,6 +931,7 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)
                 pgid = pid;
         if (pgid < 0)
                 return -EINVAL;
+        rcu_read_lock();
 
         /* From this point forward we keep holding onto the tasklist lock
          * so that our parent does not change from under us. -DaveM
@@ -984,6 +985,7 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)
 out:
         /* All paths lead to here, thus we are safe. -DaveM */
         write_unlock_irq(&tasklist_lock);
+        rcu_read_unlock();
         return err;
 }
 
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index ca38e8e3e907..f88552c6d227 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1713,10 +1713,7 @@ static __init int sysctl_init(void)
 {
         sysctl_set_parent(NULL, root_table);
 #ifdef CONFIG_SYSCTL_SYSCALL_CHECK
-        {
-                int err;
-                err = sysctl_check_table(current->nsproxy, root_table);
-        }
+        sysctl_check_table(current->nsproxy, root_table);
 #endif
         return 0;
 }
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 538501c6ea50..6329d063b5e4 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -121,7 +121,7 @@ if FTRACE
 config FUNCTION_TRACER
         bool "Kernel Function Tracer"
         depends on HAVE_FUNCTION_TRACER
-        select FRAME_POINTER
+        select FRAME_POINTER if (!ARM_UNWIND)
         select KALLSYMS
         select GENERIC_TRACER
         select CONTEXT_SWITCH_TRACER
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 0d88ce9b9fb8..fa7ece649fe1 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -381,12 +381,19 @@ static int function_stat_show(struct seq_file *m, void *v)
 {
         struct ftrace_profile *rec = v;
         char str[KSYM_SYMBOL_LEN];
+        int ret = 0;
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-        static DEFINE_MUTEX(mutex);
         static struct trace_seq s;
         unsigned long long avg;
         unsigned long long stddev;
 #endif
+        mutex_lock(&ftrace_profile_lock);
+
+        /* we raced with function_profile_reset() */
+        if (unlikely(rec->counter == 0)) {
+                ret = -EBUSY;
+                goto out;
+        }
 
         kallsyms_lookup(rec->ip, NULL, NULL, NULL, str);
         seq_printf(m, "  %-30.30s  %10lu", str, rec->counter);
@@ -408,7 +415,6 @@ static int function_stat_show(struct seq_file *m, void *v)
                 do_div(stddev, (rec->counter - 1) * 1000);
         }
 
-        mutex_lock(&mutex);
         trace_seq_init(&s);
         trace_print_graph_duration(rec->time, &s);
         trace_seq_puts(&s, "    ");
@@ -416,11 +422,12 @@ static int function_stat_show(struct seq_file *m, void *v)
         trace_seq_puts(&s, "    ");
         trace_print_graph_duration(stddev, &s);
         trace_print_seq(m, &s);
-        mutex_unlock(&mutex);
 #endif
         seq_putc(m, '\n');
+out:
+        mutex_unlock(&ftrace_profile_lock);
 
-        return 0;
+        return ret;
 }
 
 static void ftrace_profile_reset(struct ftrace_profile_stat *stat)
@@ -1503,6 +1510,8 @@ static void *t_start(struct seq_file *m, loff_t *pos)
                 if (*pos > 0)
                         return t_hash_start(m, pos);
                 iter->flags |= FTRACE_ITER_PRINTALL;
+                /* reset in case of seek/pread */
+                iter->flags &= ~FTRACE_ITER_HASH;
                 return iter;
         }
 
@@ -2409,7 +2418,7 @@ static const struct file_operations ftrace_filter_fops = {
         .open = ftrace_filter_open,
         .read = seq_read,
         .write = ftrace_filter_write,
-        .llseek = ftrace_regex_lseek,
+        .llseek = no_llseek,
         .release = ftrace_filter_release,
 };
 
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 19cccc3c3028..492197e2f86c 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2985,13 +2985,11 @@ static void rb_advance_reader(struct ring_buffer_per_cpu *cpu_buffer)
 
 static void rb_advance_iter(struct ring_buffer_iter *iter)
 {
-        struct ring_buffer *buffer;
         struct ring_buffer_per_cpu *cpu_buffer;
         struct ring_buffer_event *event;
         unsigned length;
 
         cpu_buffer = iter->cpu_buffer;
-        buffer = cpu_buffer->buffer;
 
         /*
          * Check if we are at the end of the buffer.
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 000e6e85b445..31cc4cb0dbf2 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -91,6 +91,8 @@ int perf_trace_init(struct perf_event *p_event)
                     tp_event->class && tp_event->class->reg &&
                     try_module_get(tp_event->mod)) {
                         ret = perf_trace_event_init(tp_event, p_event);
+                        if (ret)
+                                module_put(tp_event->mod);
                         break;
                 }
         }
@@ -146,6 +148,7 @@ void perf_trace_destroy(struct perf_event *p_event)
                 }
         }
 out:
+        module_put(tp_event->mod);
         mutex_unlock(&event_mutex);
 }
 
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 8b27c9849b42..544301d29dee 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -514,8 +514,8 @@ static int kprobe_dispatcher(struct kprobe *kp, struct pt_regs *regs);
 static int kretprobe_dispatcher(struct kretprobe_instance *ri,
                                 struct pt_regs *regs);
 
-/* Check the name is good for event/group */
-static int check_event_name(const char *name)
+/* Check the name is good for event/group/fields */
+static int is_good_name(const char *name)
 {
         if (!isalpha(*name) && *name != '_')
                 return 0;
@@ -557,7 +557,7 @@ static struct trace_probe *alloc_trace_probe(const char *group,
         else
                 tp->rp.kp.pre_handler = kprobe_dispatcher;
 
-        if (!event || !check_event_name(event)) {
+        if (!event || !is_good_name(event)) {
                 ret = -EINVAL;
                 goto error;
         }
@@ -567,7 +567,7 @@ static struct trace_probe *alloc_trace_probe(const char *group,
         if (!tp->call.name)
                 goto error;
 
-        if (!group || !check_event_name(group)) {
+        if (!group || !is_good_name(group)) {
                 ret = -EINVAL;
                 goto error;
         }
@@ -883,7 +883,7 @@ static int create_trace_probe(int argc, char **argv)
         int i, ret = 0;
         int is_return = 0, is_delete = 0;
         char *symbol = NULL, *event = NULL, *group = NULL;
-        char *arg, *tmp;
+        char *arg;
         unsigned long offset = 0;
         void *addr = NULL;
         char buf[MAX_EVENT_NAME_LEN];
@@ -992,26 +992,36 @@ static int create_trace_probe(int argc, char **argv)
         /* parse arguments */
         ret = 0;
         for (i = 0; i < argc && i < MAX_TRACE_ARGS; i++) {
+                /* Increment count for freeing args in error case */
+                tp->nr_args++;
+
                 /* Parse argument name */
                 arg = strchr(argv[i], '=');
-                if (arg)
+                if (arg) {
                         *arg++ = '\0';
-                else
+                        tp->args[i].name = kstrdup(argv[i], GFP_KERNEL);
+                } else {
                         arg = argv[i];
+                        /* If argument name is omitted, set "argN" */
+                        snprintf(buf, MAX_EVENT_NAME_LEN, "arg%d", i + 1);
+                        tp->args[i].name = kstrdup(buf, GFP_KERNEL);
+                }
 
-                tp->args[i].name = kstrdup(argv[i], GFP_KERNEL);
                 if (!tp->args[i].name) {
-                        pr_info("Failed to allocate argument%d name '%s'.\n",
-                                i, argv[i]);
+                        pr_info("Failed to allocate argument[%d] name.\n", i);
                         ret = -ENOMEM;
                         goto error;
                 }
-                tmp = strchr(tp->args[i].name, ':');
-                if (tmp)
-                        *tmp = '_';     /* convert : to _ */
+
+                if (!is_good_name(tp->args[i].name)) {
+                        pr_info("Invalid argument[%d] name: %s\n",
+                                i, tp->args[i].name);
+                        ret = -EINVAL;
+                        goto error;
+                }
 
                 if (conflict_field_name(tp->args[i].name, tp->args, i)) {
-                        pr_info("Argument%d name '%s' conflicts with "
+                        pr_info("Argument[%d] name '%s' conflicts with "
                                 "another field.\n", i, argv[i]);
                         ret = -EINVAL;
                         goto error;
@@ -1020,12 +1030,9 @@ static int create_trace_probe(int argc, char **argv)
                 /* Parse fetch argument */
                 ret = parse_probe_arg(arg, tp, &tp->args[i], is_return);
                 if (ret) {
-                        pr_info("Parse error at argument%d. (%d)\n", i, ret);
-                        kfree(tp->args[i].name);
+                        pr_info("Parse error at argument[%d]. (%d)\n", i, ret);
                         goto error;
                 }
-
-                tp->nr_args++;
         }
 
         ret = register_trace_probe(tp);
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 0d53c8e853b1..7f9c3c52ecc1 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -122,7 +122,7 @@ static void __touch_watchdog(void)
 
 void touch_softlockup_watchdog(void)
 {
-        __get_cpu_var(watchdog_touch_ts) = 0;
+        __raw_get_cpu_var(watchdog_touch_ts) = 0;
 }
 EXPORT_SYMBOL(touch_softlockup_watchdog);
 
@@ -142,7 +142,14 @@ void touch_all_softlockup_watchdogs(void)
 #ifdef CONFIG_HARDLOCKUP_DETECTOR
 void touch_nmi_watchdog(void)
 {
-        __get_cpu_var(watchdog_nmi_touch) = true;
+        if (watchdog_enabled) {
+                unsigned cpu;
+
+                for_each_present_cpu(cpu) {
+                        if (per_cpu(watchdog_nmi_touch, cpu) != true)
+                                per_cpu(watchdog_nmi_touch, cpu) = true;
+                }
+        }
         touch_softlockup_watchdog();
 }
 EXPORT_SYMBOL(touch_nmi_watchdog);
@@ -433,6 +440,9 @@ static int watchdog_enable(int cpu)
                 wake_up_process(p);
         }
 
+        /* if any cpu succeeds, watchdog is considered enabled for the system */
+        watchdog_enabled = 1;
+
         return 0;
 }
 
@@ -455,9 +465,6 @@ static void watchdog_disable(int cpu)
                 per_cpu(softlockup_watchdog, cpu) = NULL;
                 kthread_stop(p);
         }
-
-        /* if any cpu succeeds, watchdog is considered enabled for the system */
-        watchdog_enabled = 1;
 }
 
 static void watchdog_enable_all_cpus(void)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 8bd600c020e5..f77afd939229 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1,19 +1,26 @@
 /*
- * linux/kernel/workqueue.c
+ * kernel/workqueue.c - generic async execution with shared worker pool
  *
- * Generic mechanism for defining kernel helper threads for running
- * arbitrary tasks in process context.
+ * Copyright (C) 2002           Ingo Molnar
  *
- * Started by Ingo Molnar, Copyright (C) 2002
+ *   Derived from the taskqueue/keventd code by:
+ *     David Woodhouse <dwmw2@infradead.org>
+ *     Andrew Morton
+ *     Kai Petzke <wpp@marie.physik.tu-berlin.de>
+ *     Theodore Ts'o <tytso@mit.edu>
  *
- * Derived from the taskqueue/keventd code by:
+ * Made to use alloc_percpu by Christoph Lameter.
  *
- *   David Woodhouse <dwmw2@infradead.org>
- *   Andrew Morton
- *   Kai Petzke <wpp@marie.physik.tu-berlin.de>
- *   Theodore Ts'o <tytso@mit.edu>
+ * Copyright (C) 2010           SUSE Linux Products GmbH
+ * Copyright (C) 2010           Tejun Heo <tj@kernel.org>
  *
- * Made to use alloc_percpu by Christoph Lameter.
+ * This is the generic async execution mechanism.  Work items as are
+ * executed in process context.  The worker pool is shared and
+ * automatically managed.  There is one worker pool for each CPU and
+ * one extra for works which are better served by workers which are
+ * not bound to any specific CPU.
+ *
+ * Please read Documentation/workqueue.txt for details.
  */
 
 #include <linux/module.h>
@@ -90,7 +97,8 @@ enum {
 /*
  * Structure fields follow one of the following exclusion rules.
  *
- * I: Set during initialization and read-only afterwards.
+ * I: Modifiable by initialization/destruction paths and read-only for
+ *    everyone else.
  *
  * P: Preemption protected.  Disabling preemption is enough and should
  *    only be modified and accessed from the local cpu.
@@ -198,7 +206,7 @@ typedef cpumask_var_t mayday_mask_t;
         cpumask_test_and_set_cpu((cpu), (mask))
 #define mayday_clear_cpu(cpu, mask)             cpumask_clear_cpu((cpu), (mask))
 #define for_each_mayday_cpu(cpu, mask)          for_each_cpu((cpu), (mask))
-#define alloc_mayday_mask(maskp, gfp)           alloc_cpumask_var((maskp), (gfp))
+#define alloc_mayday_mask(maskp, gfp)           zalloc_cpumask_var((maskp), (gfp))
 #define free_mayday_mask(mask)                  free_cpumask_var((mask))
 #else
 typedef unsigned long mayday_mask_t;
@@ -943,10 +951,14 @@ static void __queue_work(unsigned int cpu, struct workqueue_struct *wq,
         struct global_cwq *gcwq;
         struct cpu_workqueue_struct *cwq;
         struct list_head *worklist;
+        unsigned int work_flags;
         unsigned long flags;
 
         debug_work_activate(work);
 
+        if (WARN_ON_ONCE(wq->flags & WQ_DYING))
+                return;
+
         /* determine gcwq to use */
         if (!(wq->flags & WQ_UNBOUND)) {
                 struct global_cwq *last_gcwq;
@@ -989,14 +1001,17 @@ static void __queue_work(unsigned int cpu, struct workqueue_struct *wq,
         BUG_ON(!list_empty(&work->entry));
 
         cwq->nr_in_flight[cwq->work_color]++;
+        work_flags = work_color_to_flags(cwq->work_color);
 
         if (likely(cwq->nr_active < cwq->max_active)) {
                 cwq->nr_active++;
                 worklist = gcwq_determine_ins_pos(gcwq, cwq);
-        } else
+        } else {
+                work_flags |= WORK_STRUCT_DELAYED;
                 worklist = &cwq->delayed_works;
+        }
 
-        insert_work(cwq, work, worklist, work_color_to_flags(cwq->work_color));
+        insert_work(cwq, work, worklist, work_flags);
 
         spin_unlock_irqrestore(&gcwq->lock, flags);
 }
@@ -1215,6 +1230,7 @@ static void worker_leave_idle(struct worker *worker)
  * bound), %false if offline.
  */
 static bool worker_maybe_bind_and_lock(struct worker *worker)
+__acquires(&gcwq->lock)
 {
         struct global_cwq *gcwq = worker->gcwq;
         struct task_struct *task = worker->task;
@@ -1488,6 +1504,8 @@ static void gcwq_mayday_timeout(unsigned long __gcwq)
  * otherwise.
  */
 static bool maybe_create_worker(struct global_cwq *gcwq)
+__releases(&gcwq->lock)
+__acquires(&gcwq->lock)
 {
         if (!need_to_create_worker(gcwq))
                 return false;
@@ -1662,6 +1680,7 @@ static void cwq_activate_first_delayed(struct cpu_workqueue_struct *cwq)
         struct list_head *pos = gcwq_determine_ins_pos(cwq->gcwq, cwq);
 
         move_linked_works(work, pos, NULL);
+        __clear_bit(WORK_STRUCT_DELAYED_BIT, work_data_bits(work));
         cwq->nr_active++;
 }
 
@@ -1669,6 +1688,7 @@ static void cwq_activate_first_delayed(struct cpu_workqueue_struct *cwq)
  * cwq_dec_nr_in_flight - decrement cwq's nr_in_flight
  * @cwq: cwq of interest
  * @color: color of work which left the queue
+ * @delayed: for a delayed work
  *
  * A work either has completed or is removed from pending queue,
  * decrement nr_in_flight of its cwq and handle workqueue flushing.
@@ -1676,19 +1696,22 @@ static void cwq_activate_first_delayed(struct cpu_workqueue_struct *cwq)
  * CONTEXT:
  * spin_lock_irq(gcwq->lock).
  */
-static void cwq_dec_nr_in_flight(struct cpu_workqueue_struct *cwq, int color)
+static void cwq_dec_nr_in_flight(struct cpu_workqueue_struct *cwq, int color,
+                                 bool delayed)
 {
         /* ignore uncolored works */
         if (color == WORK_NO_COLOR)
                 return;
 
         cwq->nr_in_flight[color]--;
-        cwq->nr_active--;
 
-        if (!list_empty(&cwq->delayed_works)) {
-                /* one down, submit a delayed one */
-                if (cwq->nr_active < cwq->max_active)
-                        cwq_activate_first_delayed(cwq);
+        if (!delayed) {
+                cwq->nr_active--;
+                if (!list_empty(&cwq->delayed_works)) {
+                        /* one down, submit a delayed one */
+                        if (cwq->nr_active < cwq->max_active)
+                                cwq_activate_first_delayed(cwq);
+                }
         }
 
         /* is flush in progress and are we at the flushing tip? */
@@ -1725,6 +1748,8 @@ static void cwq_dec_nr_in_flight(struct cpu_workqueue_struct *cwq, int color)
  * spin_lock_irq(gcwq->lock) which is released and regrabbed.
  */
 static void process_one_work(struct worker *worker, struct work_struct *work)
+__releases(&gcwq->lock)
+__acquires(&gcwq->lock)
 {
         struct cpu_workqueue_struct *cwq = get_work_cwq(work);
         struct global_cwq *gcwq = cwq->gcwq;
@@ -1823,7 +1848,7 @@ static void process_one_work(struct worker *worker, struct work_struct *work)
         hlist_del_init(&worker->hentry);
         worker->current_work = NULL;
         worker->current_cwq = NULL;
-        cwq_dec_nr_in_flight(cwq, work_color);
+        cwq_dec_nr_in_flight(cwq, work_color, false);
 }
 
 /**
@@ -2388,7 +2413,8 @@ static int try_to_grab_pending(struct work_struct *work)
                         debug_work_deactivate(work);
                         list_del_init(&work->entry);
                         cwq_dec_nr_in_flight(get_work_cwq(work),
-                                             get_work_color(work));
+                                get_work_color(work),
+                                *work_data_bits(work) & WORK_STRUCT_DELAYED);
                         ret = 1;
                 }
         }
@@ -2791,7 +2817,6 @@ struct workqueue_struct *__alloc_workqueue_key(const char *name,
                 if (IS_ERR(rescuer->task))
                         goto err;
 
-                wq->rescuer = rescuer;
                 rescuer->task->flags |= PF_THREAD_BOUND;
                 wake_up_process(rescuer->task);
         }
@@ -2833,6 +2858,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
 {
         unsigned int cpu;
 
+        wq->flags |= WQ_DYING;
         flush_workqueue(wq);
 
         /*
@@ -2857,6 +2883,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
         if (wq->flags & WQ_RESCUER) {
                 kthread_stop(wq->rescuer->task);
                 free_mayday_mask(wq->mayday_mask);
+                kfree(wq->rescuer);
         }
 
         free_cwqs(wq);
@@ -3239,6 +3266,8 @@ static int __cpuinit trustee_thread(void *__gcwq)
  * multiple times.  To be used by cpu_callback.
  */
 static void __cpuinit wait_trustee_state(struct global_cwq *gcwq, int state)
+__releases(&gcwq->lock)
+__acquires(&gcwq->lock)
 {
         if (!(gcwq->trustee_state == state ||
               gcwq->trustee_state == TRUSTEE_DONE)) {
@@ -3545,8 +3574,7 @@ static int __init init_workqueues(void)
                 spin_lock_init(&gcwq->lock);
                 INIT_LIST_HEAD(&gcwq->worklist);
                 gcwq->cpu = cpu;
-                if (cpu == WORK_CPU_UNBOUND)
-                        gcwq->flags |= GCWQ_DISASSOCIATED;
+                gcwq->flags |= GCWQ_DISASSOCIATED;
 
                 INIT_LIST_HEAD(&gcwq->idle_list);
                 for (i = 0; i < BUSY_WORKER_HASH_SIZE; i++)
@@ -3570,6 +3598,8 @@ static int __init init_workqueues(void)
                 struct global_cwq *gcwq = get_gcwq(cpu);
                 struct worker *worker;
 
+                if (cpu != WORK_CPU_UNBOUND)
+                        gcwq->flags &= ~GCWQ_DISASSOCIATED;
                 worker = create_worker(gcwq, true);
                 BUG_ON(!worker);
                 spin_lock_irq(&gcwq->lock);
diff --git a/lib/raid6/.gitignore b/lib/raid6/.gitignore
new file mode 100644
index 000000000000..162becacf97c
--- /dev/null
+++ b/lib/raid6/.gitignore
@@ -0,0 +1,4 @@
+mktables
+altivec*.c
+int*.c
+tables.c
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index a5ec42868f99..4ceb05d772ae 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -248,8 +248,18 @@ int __sg_alloc_table(struct sg_table *table, unsigned int nents,
                 left -= sg_size;
 
                 sg = alloc_fn(alloc_size, gfp_mask);
-                if (unlikely(!sg))
-                        return -ENOMEM;
+                if (unlikely(!sg)) {
+                        /*
+                         * Adjust entry count to reflect that the last
+                         * entry of the previous table won't be used for
+                         * linkage.  Without this, sg_kfree() may get
+                         * confused.
+                         */
+                        if (prv)
+                                table->nents = ++table->orig_nents;
+
+                        return -ENOMEM;
+                }
 
                 sg_init_table(sg, alloc_size);
                 table->nents = table->orig_nents += sg_size;
diff --git a/mm/Kconfig b/mm/Kconfig
index f4e516e9c37c..f0fb9124e410 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -189,7 +189,7 @@ config COMPACTION
 config MIGRATION
         bool "Page migration"
         def_bool y
-        depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE
+        depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION
         help
           Allows the migration of the physical location of pages of processes
           while the virtual addresses are not changed. This is useful in
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index eaa4a5bbe063..65d420499a61 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -30,6 +30,7 @@ EXPORT_SYMBOL_GPL(default_backing_dev_info);
 
 struct backing_dev_info noop_backing_dev_info = {
         .name           = "noop",
+        .capabilities   = BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 EXPORT_SYMBOL_GPL(noop_backing_dev_info);
 
@@ -243,6 +244,7 @@ static int __init default_bdi_init(void)
         err = bdi_init(&default_backing_dev_info);
         if (!err)
                 bdi_register(&default_backing_dev_info, NULL, "default");
+        err = bdi_init(&noop_backing_dev_info);
 
         return err;
 }
@@ -445,8 +447,8 @@ static int bdi_forker_thread(void *ptr)
                 switch (action) {
                 case FORK_THREAD:
                         __set_current_state(TASK_RUNNING);
-                        task = kthread_run(bdi_writeback_thread, &bdi->wb, "flush-%s",
-                                           dev_name(bdi->dev));
+                        task = kthread_create(bdi_writeback_thread, &bdi->wb,
+                                              "flush-%s", dev_name(bdi->dev));
                         if (IS_ERR(task)) {
                                 /*
                                  * If thread creation fails, force writeout of
@@ -457,10 +459,13 @@ static int bdi_forker_thread(void *ptr)
                                 /*
                                  * The spinlock makes sure we do not lose
                                  * wake-ups when racing with 'bdi_queue_work()'.
+                                 * And as soon as the bdi thread is visible, we
+                                 * can start it.
                                  */
                                 spin_lock_bh(&bdi->wb_lock);
                                 bdi->wb.task = task;
                                 spin_unlock_bh(&bdi->wb_lock);
+                                wake_up_process(task);
                         }
                         break;
 
diff --git a/mm/bounce.c b/mm/bounce.c
index 13b6dad1eed2..1481de68184b 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -116,8 +116,8 @@ static void copy_to_high_bio_irq(struct bio *to, struct bio *from)
                  */
                 vfrom = page_address(fromvec->bv_page) + tovec->bv_offset;
 
-                flush_dcache_page(tovec->bv_page);
                 bounce_copy_vec(tovec, vfrom);
+                flush_dcache_page(tovec->bv_page);
         }
 }
 
diff --git a/mm/compaction.c b/mm/compaction.c
index 94cce51b0b35..4d709ee59013 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -214,15 +214,16 @@ static void acct_isolated(struct zone *zone, struct compact_control *cc)
 /* Similar to reclaim, but different enough that they don't share logic */
 static bool too_many_isolated(struct zone *zone)
 {
-
-        unsigned long inactive, isolated;
+        unsigned long active, inactive, isolated;
 
         inactive = zone_page_state(zone, NR_INACTIVE_FILE) +
                                         zone_page_state(zone, NR_INACTIVE_ANON);
+        active = zone_page_state(zone, NR_ACTIVE_FILE) +
+                                        zone_page_state(zone, NR_ACTIVE_ANON);
         isolated = zone_page_state(zone, NR_ISOLATED_FILE) +
                                         zone_page_state(zone, NR_ISOLATED_ANON);
 
-        return isolated > inactive;
+        return isolated > (inactive + active) / 2;
 }
 
 /*
diff --git a/mm/fremap.c b/mm/fremap.c
index 46f5dacf90a2..ec520c7b28df 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -125,7 +125,6 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 {
         struct mm_struct *mm = current->mm;
         struct address_space *mapping;
-        unsigned long end = start + size;
         struct vm_area_struct *vma;
         int err = -EINVAL;
         int has_write_lock = 0;
@@ -142,6 +141,10 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
         if (start + size <= start)
                 return err;
 
+        /* Does pgoff wrap? */
+        if (pgoff + (size >> PAGE_SHIFT) < pgoff)
+                return err;
+
         /* Can we represent this offset inside this architecture's pte's? */
 #if PTE_FILE_MAX_BITS < BITS_PER_LONG
         if (pgoff + (size >> PAGE_SHIFT) >= (1UL << PTE_FILE_MAX_BITS))
@@ -168,7 +171,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
         if (!(vma->vm_flags & VM_CAN_NONLINEAR))
                 goto out;
 
-        if (end <= start || start < vma->vm_start || end > vma->vm_end)
+        if (start < vma->vm_start || start + size > vma->vm_end)
                 goto out;
 
         /* Must set VM_NONLINEAR before any pages are populated. */
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index cc5be788a39f..c03273807182 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2324,11 +2324,8 @@ retry_avoidcopy:
          * and just make the page writable */
         avoidcopy = (page_mapcount(old_page) == 1);
         if (avoidcopy) {
-                if (!trylock_page(old_page)) {
-                        if (PageAnon(old_page))
-                                page_move_anon_rmap(old_page, vma, address);
-                } else
-                        unlock_page(old_page);
+                if (PageAnon(old_page))
+                        page_move_anon_rmap(old_page, vma, address);
                 set_huge_ptep_writable(vma, address, ptep);
                 return 0;
         }
@@ -2404,7 +2401,7 @@ retry_avoidcopy:
                 set_huge_pte_at(mm, address, ptep,
                                 make_huge_pte(vma, new_page, 1));
                 page_remove_rmap(old_page);
-                hugepage_add_anon_rmap(new_page, vma, address);
+                hugepage_add_new_anon_rmap(new_page, vma, address);
                 /* Make the old page be freed below */
                 new_page = old_page;
                 mmu_notifier_invalidate_range_end(mm,
@@ -2631,10 +2628,16 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                                                                 vma, address);
         }
 
-        if (!pagecache_page) {
-                page = pte_page(entry);
+        /*
+         * hugetlb_cow() requires page locks of pte_page(entry) and
+         * pagecache_page, so here we need take the former one
+         * when page != pagecache_page or !pagecache_page.
+         * Note that locking order is always pagecache_page -> page,
+         * so no worry about deadlock.
+         */
+        page = pte_page(entry);
+        if (page != pagecache_page)
                 lock_page(page);
-        }
 
         spin_lock(&mm->page_table_lock);
         /* Check for a racing update before calling hugetlb_cow */
@@ -2661,9 +2664,8 @@ out_page_table_lock:
         if (pagecache_page) {
                 unlock_page(pagecache_page);
                 put_page(pagecache_page);
-        } else {
-                unlock_page(page);
         }
+        unlock_page(page);
 
 out_mutex:
         mutex_unlock(&hugetlb_instantiation_mutex);
diff --git a/mm/ksm.c b/mm/ksm.c
index e2ae00458320..b1873cf03ed9 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1504,8 +1504,6 @@ struct page *ksm_does_need_to_copy(struct page *page,
 {
         struct page *new_page;
 
-        unlock_page(page);      /* any racers will COW it, not modify it */
-
         new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address);
         if (new_page) {
                 copy_user_highpage(new_page, page, address, vma);
@@ -1521,7 +1519,6 @@ struct page *ksm_does_need_to_copy(struct page *page,
                         add_page_to_unevictable_list(new_page);
         }
 
-        page_cache_release(page);
         return new_page;
 }
 
diff --git a/mm/memory.c b/mm/memory.c
index 6b2ab1051851..0e18b4d649ec 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2623,7 +2623,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
                 unsigned int flags, pte_t orig_pte)
 {
         spinlock_t *ptl;
-        struct page *page;
+        struct page *page, *swapcache = NULL;
         swp_entry_t entry;
         pte_t pte;
         struct mem_cgroup *ptr = NULL;
@@ -2679,10 +2679,25 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
         lock_page(page);
         delayacct_clear_flag(DELAYACCT_PF_SWAPIN);
 
-        page = ksm_might_need_to_copy(page, vma, address);
-        if (!page) {
-                ret = VM_FAULT_OOM;
-                goto out;
+        /*
+         * Make sure try_to_free_swap or reuse_swap_page or swapoff did not
+         * release the swapcache from under us.  The page pin, and pte_same
+         * test below, are not enough to exclude that.  Even if it is still
+         * swapcache, we need to check that the page's swap has not changed.
+         */
+        if (unlikely(!PageSwapCache(page) || page_private(page) != entry.val))
+                goto out_page;
+
+        if (ksm_might_need_to_copy(page, vma, address)) {
+                swapcache = page;
+                page = ksm_does_need_to_copy(page, vma, address);
+
+                if (unlikely(!page)) {
+                        ret = VM_FAULT_OOM;
+                        page = swapcache;
+                        swapcache = NULL;
+                        goto out_page;
+                }
         }
 
         if (mem_cgroup_try_charge_swapin(mm, page, GFP_KERNEL, &ptr)) {
@@ -2735,6 +2750,18 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
         if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
                 try_to_free_swap(page);
         unlock_page(page);
+        if (swapcache) {
+                /*
+                 * Hold the lock to avoid the swap entry to be reused
+                 * until we take the PT lock for the pte_same() check
+                 * (to avoid false positives from pte_same). For
+                 * further safety release the lock after the swap_free
+                 * so that the swap count won't change under a
+                 * parallel locked swapcache.
+                 */
+                unlock_page(swapcache);
+                page_cache_release(swapcache);
+        }
 
         if (flags & FAULT_FLAG_WRITE) {
                 ret |= do_wp_page(mm, vma, address, page_table, pmd, ptl, pte);
@@ -2756,6 +2783,10 @@ out_page:
         unlock_page(page);
 out_release:
         page_cache_release(page);
+        if (swapcache) {
+                unlock_page(swapcache);
+                page_cache_release(swapcache);
+        }
         return ret;
 }
 
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index a4cfcdc00455..dd186c1a5d53 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -584,19 +584,19 @@ static inline int pageblock_free(struct page *page)
 /* Return the start of the next active pageblock after a given page */
 static struct page *next_active_pageblock(struct page *page)
 {
-        int pageblocks_stride;
-
         /* Ensure the starting page is pageblock-aligned */
         BUG_ON(page_to_pfn(page) & (pageblock_nr_pages - 1));
 
-        /* Move forward by at least 1 * pageblock_nr_pages */
-        pageblocks_stride = 1;
-
         /* If the entire pageblock is free, move to the end of free page */
-        if (pageblock_free(page))
-                pageblocks_stride += page_order(page) - pageblock_order;
+        if (pageblock_free(page)) {
+                int order;
+                /* be careful. we don't have locks, page_order can be changed.*/
+                order = page_order(page);
+                if ((order < MAX_ORDER) && (order >= pageblock_order))
+                        return page + (1 << order);
+        }
 
-        return page + (pageblocks_stride * pageblock_nr_pages);
+        return page + pageblock_nr_pages;
 }
 
 /* Checks if this range of memory is likely to be hot-removable. */
diff --git a/mm/mlock.c b/mm/mlock.c
index cbae7c5b9568..b70919ce4f72 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -135,12 +135,6 @@ void munlock_vma_page(struct page *page)
         }
 }
 
-/* Is the vma a continuation of the stack vma above it? */
-static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)
-{
-        return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
-}
-
 static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
 {
         return (vma->vm_flags & VM_GROWSDOWN) &&
diff --git a/mm/mmap.c b/mm/mmap.c
index 6128dc8e5ede..00161a48a451 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2009,6 +2009,7 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
                         removed_exe_file_vma(mm);
                 fput(new->vm_file);
         }
+        unlink_anon_vmas(new);
  out_free_mpol:
         mpol_put(pol);
  out_free_vma:
diff --git a/mm/mmzone.c b/mm/mmzone.c
index f5b7d1760213..e35bfb82c855 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -87,3 +87,24 @@ int memmap_valid_within(unsigned long pfn,
         return 1;
 }
 #endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */
+
+#ifdef CONFIG_SMP
+/* Called when a more accurate view of NR_FREE_PAGES is needed */
+unsigned long zone_nr_free_pages(struct zone *zone)
+{
+        unsigned long nr_free_pages = zone_page_state(zone, NR_FREE_PAGES);
+
+        /*
+         * While kswapd is awake, it is considered the zone is under some
+         * memory pressure. Under pressure, there is a risk that
+         * per-cpu-counter-drift will allow the min watermark to be breached
+         * potentially causing a live-lock. While kswapd is awake and
+         * free pages are low, get a better estimate for free pages
+         */
+        if (nr_free_pages < zone->percpu_drift_mark &&
+                        !waitqueue_active(&zone->zone_pgdat->kswapd_wait))
+                return zone_page_state_snapshot(zone, NR_FREE_PAGES);
+
+        return nr_free_pages;
+}
+#endif /* CONFIG_SMP */
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index fc81cb22869e..4029583a1024 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -121,8 +121,8 @@ struct task_struct *find_lock_task_mm(struct task_struct *p)
 }
 
 /* return true if the task is not adequate as candidate victim task. */
-static bool oom_unkillable_task(struct task_struct *p, struct mem_cgroup *mem,
-                           const nodemask_t *nodemask)
+static bool oom_unkillable_task(struct task_struct *p,
+                const struct mem_cgroup *mem, const nodemask_t *nodemask)
 {
         if (is_global_init(p))
                 return true;
@@ -208,8 +208,13 @@ unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
          */
         points += p->signal->oom_score_adj;
 
-        if (points < 0)
-                return 0;
+        /*
+         * Never return 0 for an eligible task that may be killed since it's
+         * possible that no single user task uses more than 0.1% of memory and
+         * no single admin tasks uses more than 3.0%.
+         */
+        if (points <= 0)
+                return 1;
         return (points < 1000) ? points : 1000;
 }
 
@@ -339,26 +344,24 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
 /**
  * dump_tasks - dump current memory state of all system tasks
  * @mem: current's memory controller, if constrained
+ * @nodemask: nodemask passed to page allocator for mempolicy ooms
  *
- * Dumps the current memory state of all system tasks, excluding kernel threads.
+ * Dumps the current memory state of all eligible tasks.  Tasks not in the same
+ * memcg, not in the same cpuset, or bound to a disjoint set of mempolicy nodes
+ * are not shown.
  * State information includes task's pid, uid, tgid, vm size, rss, cpu, oom_adj
  * value, oom_score_adj value, and name.
  *
- * If the actual is non-NULL, only tasks that are a member of the mem_cgroup are
- * shown.
- *
  * Call with tasklist_lock read-locked.
  */
-static void dump_tasks(const struct mem_cgroup *mem)
+static void dump_tasks(const struct mem_cgroup *mem, const nodemask_t *nodemask)
 {
         struct task_struct *p;
         struct task_struct *task;
 
         pr_info("[ pid ]   uid  tgid total_vm      rss cpu oom_adj oom_score_adj name\n");
         for_each_process(p) {
-                if (p->flags & PF_KTHREAD)
-                        continue;
-                if (mem && !task_in_mem_cgroup(p, mem))
+                if (oom_unkillable_task(p, mem, nodemask))
                         continue;
 
                 task = find_lock_task_mm(p);
@@ -381,7 +384,7 @@ static void dump_tasks(const struct mem_cgroup *mem)
 }
 
 static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
-                                                        struct mem_cgroup *mem)
+                        struct mem_cgroup *mem, const nodemask_t *nodemask)
 {
         task_lock(current);
         pr_warning("%s invoked oom-killer: gfp_mask=0x%x, order=%d, "
@@ -394,7 +397,7 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
         mem_cgroup_print_oom_info(mem, p);
         show_mem();
         if (sysctl_oom_dump_tasks)
-                dump_tasks(mem);
+                dump_tasks(mem, nodemask);
 }
 
 #define K(x) ((x) << (PAGE_SHIFT-10))
@@ -436,7 +439,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
         unsigned int victim_points = 0;
 
         if (printk_ratelimit())
-                dump_header(p, gfp_mask, order, mem);
+                dump_header(p, gfp_mask, order, mem, nodemask);
 
         /*
          * If the task is already exiting, don't alarm the sysadmin or kill
@@ -482,7 +485,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
  * Determines whether the kernel must panic because of the panic_on_oom sysctl.
  */
 static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
-                                int order)
+                                int order, const nodemask_t *nodemask)
 {
         if (likely(!sysctl_panic_on_oom))
                 return;
@@ -496,7 +499,7 @@ static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
                         return;
         }
         read_lock(&tasklist_lock);
-        dump_header(NULL, gfp_mask, order, NULL);
+        dump_header(NULL, gfp_mask, order, NULL, nodemask);
         read_unlock(&tasklist_lock);
         panic("Out of memory: %s panic_on_oom is enabled\n",
                 sysctl_panic_on_oom == 2 ? "compulsory" : "system-wide");
@@ -509,7 +512,7 @@ void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
         unsigned int points = 0;
         struct task_struct *p;
 
-        check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0);
+        check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0, NULL);
         limit = mem_cgroup_get_limit(mem) >> PAGE_SHIFT;
         read_lock(&tasklist_lock);
 retry:
@@ -641,6 +644,7 @@ static void clear_system_oom(void)
 void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
                 int order, nodemask_t *nodemask)
 {
+        const nodemask_t *mpol_mask;
         struct task_struct *p;
         unsigned long totalpages;
         unsigned long freed = 0;
@@ -670,7 +674,8 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
          */
         constraint = constrained_alloc(zonelist, gfp_mask, nodemask,
                                                 &totalpages);
-        check_panic_on_oom(constraint, gfp_mask, order);
+        mpol_mask = (constraint == CONSTRAINT_MEMORY_POLICY) ? nodemask : NULL;
+        check_panic_on_oom(constraint, gfp_mask, order, mpol_mask);
 
         read_lock(&tasklist_lock);
         if (sysctl_oom_kill_allocating_task &&
@@ -688,15 +693,13 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
         }
 
 retry:
-        p = select_bad_process(&points, totalpages, NULL,
-                        constraint == CONSTRAINT_MEMORY_POLICY ? nodemask :
-                                                                 NULL);
+        p = select_bad_process(&points, totalpages, NULL, mpol_mask);
         if (PTR_ERR(p) == -1UL)
                 goto out;
 
         /* Found nothing?!?! Either we hang forever, or we panic. */
         if (!p) {
-                dump_header(NULL, gfp_mask, order, NULL);
+                dump_header(NULL, gfp_mask, order, NULL, mpol_mask);
                 read_unlock(&tasklist_lock);
                 panic("Out of memory and no killable processes...\n");
         }
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a9649f4b261e..a8cfa9cc6e86 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -588,13 +588,13 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 {
         int migratetype = 0;
         int batch_free = 0;
+        int to_free = count;
 
         spin_lock(&zone->lock);
         zone->all_unreclaimable = 0;
         zone->pages_scanned = 0;
 
-        __mod_zone_page_state(zone, NR_FREE_PAGES, count);
-        while (count) {
+        while (to_free) {
                 struct page *page;
                 struct list_head *list;
 
@@ -619,8 +619,9 @@ static void free_pcppages_bulk(struct zone *zone, int count,
                         /* MIGRATE_MOVABLE list may include MIGRATE_RESERVEs */
                         __free_one_page(page, zone, 0, page_private(page));
                         trace_mm_page_pcpu_drain(page, 0, page_private(page));
-                } while (--count && --batch_free && !list_empty(list));
+                } while (--to_free && --batch_free && !list_empty(list));
         }
+        __mod_zone_page_state(zone, NR_FREE_PAGES, count);
         spin_unlock(&zone->lock);
 }
 
@@ -631,8 +632,8 @@ static void free_one_page(struct zone *zone, struct page *page, int order,
         zone->all_unreclaimable = 0;
         zone->pages_scanned = 0;
 
-        __mod_zone_page_state(zone, NR_FREE_PAGES, 1 << order);
         __free_one_page(page, zone, order, migratetype);
+        __mod_zone_page_state(zone, NR_FREE_PAGES, 1 << order);
         spin_unlock(&zone->lock);
 }
 
@@ -1461,7 +1462,7 @@ int zone_watermark_ok(struct zone *z, int order, unsigned long mark,
 {
         /* free_pages my go negative - that's OK */
         long min = mark;
-        long free_pages = zone_page_state(z, NR_FREE_PAGES) - (1 << order) + 1;
+        long free_pages = zone_nr_free_pages(z) - (1 << order) + 1;
         int o;
 
         if (alloc_flags & ALLOC_HIGH)
@@ -1846,6 +1847,7 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
         struct page *page = NULL;
         struct reclaim_state reclaim_state;
         struct task_struct *p = current;
+        bool drained = false;
 
         cond_resched();
 
@@ -1864,14 +1866,25 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
 
         cond_resched();
 
-        if (order != 0)
-                drain_all_pages();
+        if (unlikely(!(*did_some_progress)))
+                return NULL;
 
-        if (likely(*did_some_progress))
-                page = get_page_from_freelist(gfp_mask, nodemask, order,
+retry:
+        page = get_page_from_freelist(gfp_mask, nodemask, order,
                                         zonelist, high_zoneidx,
                                         alloc_flags, preferred_zone,
                                         migratetype);
+
+        /*
+         * If an allocation failed after direct reclaim, it could be because
+         * pages are pinned on the per-cpu lists. Drain them and try again
+         */
+        if (!page && !drained) {
+                drain_all_pages();
+                drained = true;
+                goto retry;
+        }
+
         return page;
 }
 
@@ -2423,7 +2436,7 @@ void show_free_areas(void)
                         " all_unreclaimable? %s"
                         "\n",
                         zone->name,
-                        K(zone_page_state(zone, NR_FREE_PAGES)),
+                        K(zone_nr_free_pages(zone)),
                         K(min_wmark_pages(zone)),
                         K(low_wmark_pages(zone)),
                         K(high_wmark_pages(zone)),
diff --git a/mm/percpu.c b/mm/percpu.c
index e61dc2cc5873..c76ef3891e0d 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -393,7 +393,9 @@ static int pcpu_extend_area_map(struct pcpu_chunk *chunk, int new_alloc)
                 goto out_unlock;
 
         old_size = chunk->map_alloc * sizeof(chunk->map[0]);
-        memcpy(new, chunk->map, old_size);
+        old = chunk->map;
+
+        memcpy(new, old, old_size);
 
         chunk->map_alloc = new_alloc;
         chunk->map = new;
@@ -1162,7 +1164,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info(
                 }
 
                 /*
-                 * Don't accept if wastage is over 25%.  The
+                 * Don't accept if wastage is over 1/3.  The
                  * greater-than comparison ensures upa==1 always
                  * passes the following check.
                  */
@@ -1399,9 +1401,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
 
                         if (pcpu_first_unit_cpu == NR_CPUS)
                                 pcpu_first_unit_cpu = cpu;
+                        pcpu_last_unit_cpu = cpu;
                 }
         }
-        pcpu_last_unit_cpu = cpu;
         pcpu_nr_units = unit;
 
         for_each_possible_cpu(cpu)
diff --git a/mm/percpu_up.c b/mm/percpu_up.c
index c4351c7f57d2..db884fae5721 100644
--- a/mm/percpu_up.c
+++ b/mm/percpu_up.c
@@ -14,13 +14,13 @@ void __percpu *__alloc_percpu(size_t size, size_t align)
          * percpu sections on SMP for which this path isn't used.
          */
         WARN_ON_ONCE(align > SMP_CACHE_BYTES);
-        return kzalloc(size, GFP_KERNEL);
+        return (void __percpu __force *)kzalloc(size, GFP_KERNEL);
 }
 EXPORT_SYMBOL_GPL(__alloc_percpu);
 
 void free_percpu(void __percpu *p)
 {
-        kfree(p);
+        kfree(this_cpu_ptr(p));
 }
 EXPORT_SYMBOL_GPL(free_percpu);
 
diff --git a/mm/rmap.c b/mm/rmap.c
index f6f0d2dda2ea..9d2ba01bd4f9 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1564,13 +1564,14 @@ static void __hugepage_set_anon_rmap(struct page *page,
         struct vm_area_struct *vma, unsigned long address, int exclusive)
 {
         struct anon_vma *anon_vma = vma->anon_vma;
+
         BUG_ON(!anon_vma);
-        if (!exclusive) {
-                struct anon_vma_chain *avc;
-                avc = list_entry(vma->anon_vma_chain.prev,
-                                 struct anon_vma_chain, same_vma);
-                anon_vma = avc->anon_vma;
-        }
+
+        if (PageAnon(page))
+                return;
+        if (!exclusive)
+                anon_vma = anon_vma->root;
+
         anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
         page->mapping = (struct address_space *) anon_vma;
         page->index = linear_page_index(vma, address);
@@ -1581,6 +1582,8 @@ void hugepage_add_anon_rmap(struct page *page,
 {
         struct anon_vma *anon_vma = vma->anon_vma;
         int first;
+
+        BUG_ON(!PageLocked(page));
         BUG_ON(!anon_vma);
         BUG_ON(address < vma->vm_start || address >= vma->vm_end);
         first = atomic_inc_and_test(&page->_mapcount);
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 1f3f9c59a73a..7c703ff2f36f 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -47,8 +47,6 @@ long nr_swap_pages;
 long total_swap_pages;
 static int least_priority;
 
-static bool swap_for_hibernation;
-
 static const char Bad_file[] = "Bad swap file entry ";
 static const char Unused_file[] = "Unused swap file entry ";
 static const char Bad_offset[] = "Bad swap offset entry ";
@@ -141,8 +139,7 @@ static int discard_swap(struct swap_info_struct *si)
         nr_blocks = ((sector_t)se->nr_pages - 1) << (PAGE_SHIFT - 9);
         if (nr_blocks) {
                 err = blkdev_issue_discard(si->bdev, start_block,
-                                nr_blocks, GFP_KERNEL,
-                                BLKDEV_IFL_WAIT | BLKDEV_IFL_BARRIER);
+                                nr_blocks, GFP_KERNEL, BLKDEV_IFL_WAIT);
                 if (err)
                         return err;
                 cond_resched();
@@ -153,8 +150,7 @@ static int discard_swap(struct swap_info_struct *si)
                 nr_blocks = (sector_t)se->nr_pages << (PAGE_SHIFT - 9);
 
                 err = blkdev_issue_discard(si->bdev, start_block,
-                                nr_blocks, GFP_KERNEL,
-                                BLKDEV_IFL_WAIT | BLKDEV_IFL_BARRIER);
+                                nr_blocks, GFP_KERNEL, BLKDEV_IFL_WAIT);
                 if (err)
                         break;
 
@@ -193,8 +189,7 @@ static void discard_swap_cluster(struct swap_info_struct *si,
                         start_block <<= PAGE_SHIFT - 9;
                         nr_blocks <<= PAGE_SHIFT - 9;
                         if (blkdev_issue_discard(si->bdev, start_block,
-                                    nr_blocks, GFP_NOIO, BLKDEV_IFL_WAIT |
-                                                        BLKDEV_IFL_BARRIER))
+                                    nr_blocks, GFP_NOIO, BLKDEV_IFL_WAIT))
                                 break;
                 }
 
@@ -320,10 +315,8 @@ checks:
         if (offset > si->highest_bit)
                 scan_base = offset = si->lowest_bit;
 
-        /* reuse swap entry of cache-only swap if not hibernation. */
-        if (vm_swap_full()
-                && usage == SWAP_HAS_CACHE
-                && si->swap_map[offset] == SWAP_HAS_CACHE) {
+        /* reuse swap entry of cache-only swap if not busy. */
+        if (vm_swap_full() && si->swap_map[offset] == SWAP_HAS_CACHE) {
                 int swap_was_freed;
                 spin_unlock(&swap_lock);
                 swap_was_freed = __try_to_reclaim_swap(si, offset);
@@ -453,8 +446,6 @@ swp_entry_t get_swap_page(void)
         spin_lock(&swap_lock);
         if (nr_swap_pages <= 0)
                 goto noswap;
-        if (swap_for_hibernation)
-                goto noswap;
         nr_swap_pages--;
 
         for (type = swap_list.next; type >= 0 && wrapped < 2; type = next) {
@@ -487,6 +478,28 @@ noswap:
         return (swp_entry_t) {0};
 }
 
+/* The only caller of this function is now susupend routine */
+swp_entry_t get_swap_page_of_type(int type)
+{
+        struct swap_info_struct *si;
+        pgoff_t offset;
+
+        spin_lock(&swap_lock);
+        si = swap_info[type];
+        if (si && (si->flags & SWP_WRITEOK)) {
+                nr_swap_pages--;
+                /* This is called for allocating swap entry, not cache */
+                offset = scan_swap_map(si, 1);
+                if (offset) {
+                        spin_unlock(&swap_lock);
+                        return swp_entry(type, offset);
+                }
+                nr_swap_pages++;
+        }
+        spin_unlock(&swap_lock);
+        return (swp_entry_t) {0};
+}
+
 static struct swap_info_struct *swap_info_get(swp_entry_t entry)
 {
         struct swap_info_struct *p;
@@ -670,6 +683,24 @@ int try_to_free_swap(struct page *page)
         if (page_swapcount(page))
                 return 0;
 
+        /*
+         * Once hibernation has begun to create its image of memory,
+         * there's a danger that one of the calls to try_to_free_swap()
+         * - most probably a call from __try_to_reclaim_swap() while
+         * hibernation is allocating its own swap pages for the image,
+         * but conceivably even a call from memory reclaim - will free
+         * the swap from a page which has already been recorded in the
+         * image as a clean swapcache page, and then reuse its swap for
+         * another page of the image.  On waking from hibernation, the
+         * original page might be freed under memory pressure, then
+         * later read back in from swap, now with the wrong data.
+         *
+         * Hibernation clears bits from gfp_allowed_mask to prevent
+         * memory reclaim from writing to disk, so check that here.
+         */
+        if (!(gfp_allowed_mask & __GFP_IO))
+                return 0;
+
         delete_from_swap_cache(page);
         SetPageDirty(page);
         return 1;
@@ -746,74 +777,6 @@ int mem_cgroup_count_swap_user(swp_entry_t ent, struct page **pagep)
 #endif
 
 #ifdef CONFIG_HIBERNATION
-
-static pgoff_t hibernation_offset[MAX_SWAPFILES];
-/*
- * Once hibernation starts to use swap, we freeze swap_map[]. Otherwise,
- * saved swap_map[] image to the disk will be an incomplete because it's
- * changing without synchronization with hibernation snap shot.
- * At resume, we just make swap_for_hibernation=false. We can forget
- * used maps easily.
- */
-void hibernation_freeze_swap(void)
-{
-        int i;
-
-        spin_lock(&swap_lock);
-
-        printk(KERN_INFO "PM: Freeze Swap\n");
-        swap_for_hibernation = true;
-        for (i = 0; i < MAX_SWAPFILES; i++)
-                hibernation_offset[i] = 1;
-        spin_unlock(&swap_lock);
-}
-
-void hibernation_thaw_swap(void)
-{
-        spin_lock(&swap_lock);
-        if (swap_for_hibernation) {
-                printk(KERN_INFO "PM: Thaw Swap\n");
-                swap_for_hibernation = false;
-        }
-        spin_unlock(&swap_lock);
-}
-
-/*
- * Because updateing swap_map[] can make not-saved-status-change,
- * we use our own easy allocator.
- * Please see kernel/power/swap.c, Used swaps are recorded into
- * RB-tree.
- */
-swp_entry_t get_swap_for_hibernation(int type)
-{
-        pgoff_t off;
-        swp_entry_t val = {0};
-        struct swap_info_struct *si;
-
-        spin_lock(&swap_lock);
-
-        si = swap_info[type];
-        if (!si || !(si->flags & SWP_WRITEOK))
-                goto done;
-
-        for (off = hibernation_offset[type]; off < si->max; ++off) {
-                if (!si->swap_map[off])
-                        break;
-        }
-        if (off < si->max) {
-                val = swp_entry(type, off);
-                hibernation_offset[type] = off + 1;
-        }
-done:
-        spin_unlock(&swap_lock);
-        return val;
-}
-
-void swap_free_for_hibernation(swp_entry_t ent)
-{
-        /* Nothing to do */
-}
-
 /*
  * Find the swap type that corresponds to given device (if any).
  *
@@ -2084,7 +2047,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
                         p->flags |= SWP_SOLIDSTATE;
                         p->cluster_next = 1 + (random32() % p->highest_bit);
                 }
-                if (discard_swap(p) == 0)
+                if (discard_swap(p) == 0 && (swap_flags & SWAP_FLAG_DISCARD))
                         p->flags |= SWP_DISCARDABLE;
         }
 
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c391c320dbaf..c5dfabf25f11 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1804,12 +1804,11 @@ static void shrink_zone(int priority, struct zone *zone,
  * If a zone is deemed to be full of pinned pages then just give it a light
  * scan then give up on it.
  */
-static bool shrink_zones(int priority, struct zonelist *zonelist,
+static void shrink_zones(int priority, struct zonelist *zonelist,
                                         struct scan_control *sc)
 {
         struct zoneref *z;
         struct zone *zone;
-        bool all_unreclaimable = true;
 
         for_each_zone_zonelist_nodemask(zone, z, zonelist,
                                         gfp_zone(sc->gfp_mask), sc->nodemask) {
@@ -1827,8 +1826,38 @@ static bool shrink_zones(int priority, struct zonelist *zonelist,
                 }
 
                 shrink_zone(priority, zone, sc);
-                all_unreclaimable = false;
         }
+}
+
+static bool zone_reclaimable(struct zone *zone)
+{
+        return zone->pages_scanned < zone_reclaimable_pages(zone) * 6;
+}
+
+/*
+ * As hibernation is going on, kswapd is freezed so that it can't mark
+ * the zone into all_unreclaimable. It can't handle OOM during hibernation.
+ * So let's check zone's unreclaimable in direct reclaim as well as kswapd.
+ */
+static bool all_unreclaimable(struct zonelist *zonelist,
+                struct scan_control *sc)
+{
+        struct zoneref *z;
+        struct zone *zone;
+        bool all_unreclaimable = true;
+
+        for_each_zone_zonelist_nodemask(zone, z, zonelist,
+                        gfp_zone(sc->gfp_mask), sc->nodemask) {
+                if (!populated_zone(zone))
+                        continue;
+                if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
+                        continue;
+                if (zone_reclaimable(zone)) {
+                        all_unreclaimable = false;
+                        break;
+                }
+        }
+
         return all_unreclaimable;
 }
 
@@ -1852,7 +1881,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
                                         struct scan_control *sc)
 {
         int priority;
-        bool all_unreclaimable;
         unsigned long total_scanned = 0;
         struct reclaim_state *reclaim_state = current->reclaim_state;
         struct zoneref *z;
@@ -1869,7 +1897,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
                 sc->nr_scanned = 0;
                 if (!priority)
                         disable_swap_token();
-                all_unreclaimable = shrink_zones(priority, zonelist, sc);
+                shrink_zones(priority, zonelist, sc);
                 /*
                  * Don't shrink slabs when reclaiming memory from
                  * over limit cgroups
@@ -1931,7 +1959,7 @@ out:
                 return sc->nr_reclaimed;
 
         /* top priority shrink_zones still had more to do? don't OOM, then */
-        if (scanning_global_lru(sc) && !all_unreclaimable)
+        if (scanning_global_lru(sc) && !all_unreclaimable(zonelist, sc))
                 return 1;
 
         return 0;
@@ -2197,8 +2225,7 @@ loop_again:
                         total_scanned += sc.nr_scanned;
                         if (zone->all_unreclaimable)
                                 continue;
-                        if (nr_slab == 0 &&
-                            zone->pages_scanned >= (zone_reclaimable_pages(zone) * 6))
+                        if (nr_slab == 0 && !zone_reclaimable(zone))
                                 zone->all_unreclaimable = 1;
                         /*
                          * If we've done a decent amount of scanning and
diff --git a/mm/vmstat.c b/mm/vmstat.c
index f389168f9a83..355a9e669aaa 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -138,11 +138,24 @@ static void refresh_zone_stat_thresholds(void)
         int threshold;
 
         for_each_populated_zone(zone) {
+                unsigned long max_drift, tolerate_drift;
+
                 threshold = calculate_threshold(zone);
 
                 for_each_online_cpu(cpu)
                         per_cpu_ptr(zone->pageset, cpu)->stat_threshold
                                                         = threshold;
+
+                /*
+                 * Only set percpu_drift_mark if there is a danger that
+                 * NR_FREE_PAGES reports the low watermark is ok when in fact
+                 * the min watermark could be breached by an allocation
+                 */
+                tolerate_drift = low_wmark_pages(zone) - min_wmark_pages(zone);
+                max_drift = num_online_cpus() * threshold;
+                if (max_drift > tolerate_drift)
+                        zone->percpu_drift_mark = high_wmark_pages(zone) +
+                                        max_drift;
         }
 }
 
@@ -813,7 +826,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
                    "\n        scanned  %lu"
                    "\n        spanned  %lu"
                    "\n        present  %lu",
-                   zone_page_state(zone, NR_FREE_PAGES),
+                   zone_nr_free_pages(zone),
                    min_wmark_pages(zone),
                    low_wmark_pages(zone),
                    high_wmark_pages(zone),
@@ -998,6 +1011,7 @@ static int __cpuinit vmstat_cpuup_callback(struct notifier_block *nfb,
         switch (action) {
         case CPU_ONLINE:
         case CPU_ONLINE_FROZEN:
+                refresh_zone_stat_thresholds();
                 start_cpu_timer(cpu);
                 node_set_state(cpu_to_node(cpu), N_CPU);
                 break;
diff --git a/net/9p/client.c b/net/9p/client.c
index dc6f2f26d023..9eb72505308f 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -331,8 +331,10 @@ static void p9_tag_cleanup(struct p9_client *c)
                 }
         }
 
-        if (c->tagpool)
+        if (c->tagpool) {
+                p9_idpool_put(0, c->tagpool); /* free reserved tag 0 */
                 p9_idpool_destroy(c->tagpool);
+        }
 
         /* free requests associated with tags */
         for (row = 0; row < (c->max_tag/P9_ROW_MAXTAG); row++) {
@@ -944,6 +946,7 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
         int16_t nwqids, count;
 
         err = 0;
+        wqids = NULL;
         clnt = oldfid->clnt;
         if (clone) {
                 fid = p9_fid_create(clnt);
@@ -994,9 +997,11 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
         else
                 fid->qid = oldfid->qid;
 
+        kfree(wqids);
         return fid;
 
 clunk_fid:
+        kfree(wqids);
         p9_client_clunk(fid);
         fid = NULL;
 
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 0ea20c30466c..17c5ba7551a5 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -426,8 +426,10 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
 
         /* Allocate an fcall for the reply */
         rpl_context = kmalloc(sizeof *rpl_context, GFP_KERNEL);
-        if (!rpl_context)
+        if (!rpl_context) {
+                err = -ENOMEM;
                 goto err_close;
+        }
 
         /*
          * If the request has a buffer, steal it, otherwise
@@ -445,8 +447,8 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
         }
         rpl_context->rc = req->rc;
         if (!rpl_context->rc) {
-                kfree(rpl_context);
-                goto err_close;
+                err = -ENOMEM;
+                goto err_free2;
         }
 
         /*
@@ -458,11 +460,8 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
          */
         if (atomic_inc_return(&rdma->rq_count) <= rdma->rq_depth) {
                 err = post_recv(client, rpl_context);
-                if (err) {
-                        kfree(rpl_context->rc);
-                        kfree(rpl_context);
-                        goto err_close;
-                }
+                if (err)
+                        goto err_free1;
         } else
                 atomic_dec(&rdma->rq_count);
 
@@ -471,8 +470,10 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
 
         /* Post the request */
         c = kmalloc(sizeof *c, GFP_KERNEL);
-        if (!c)
-                goto err_close;
+        if (!c) {
+                err = -ENOMEM;
+                goto err_free1;
+        }
         c->req = req;
 
         c->busa = ib_dma_map_single(rdma->cm_id->device,
@@ -499,9 +500,15 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
         return ib_post_send(rdma->qp, &wr, &bad_wr);
 
  error:
+        kfree(c);
+        kfree(rpl_context->rc);
+        kfree(rpl_context);
         P9_DPRINTK(P9_DEBUG_ERROR, "EIO\n");
         return -EIO;
-
+ err_free1:
+        kfree(rpl_context->rc);
+ err_free2:
+        kfree(rpl_context);
  err_close:
         spin_lock_irqsave(&rdma->req_lock, flags);
         if (rdma->state < P9_RDMA_CLOSING) {
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index dcfbe99ff81c..b88515936e4b 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -329,7 +329,8 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args)
 
         mutex_lock(&virtio_9p_lock);
         list_for_each_entry(chan, &virtio_chan_list, chan_list) {
-                if (!strncmp(devname, chan->tag, chan->tag_len)) {
+                if (!strncmp(devname, chan->tag, chan->tag_len) &&
+                    strlen(devname) == chan->tag_len) {
                         if (!chan->inuse) {
                                 chan->inuse = true;
                                 found = 1;
diff --git a/net/Kconfig b/net/Kconfig
index e330594d3709..e926884c1675 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -217,7 +217,7 @@ source "net/dns_resolver/Kconfig"
 
 config RPS
         boolean
-        depends on SMP && SYSFS
+        depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS
         default y
 
 menu "Network testing"
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index 651babdfab38..ad2b232a2055 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -399,12 +399,6 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
                         unregister_netdev(net_dev);
                         free_netdev(net_dev);
                 }
-                read_lock_irq(&devs_lock);
-                if (list_empty(&br2684_devs)) {
-                        /* last br2684 device */
-                        unregister_atmdevice_notifier(&atm_dev_notifier);
-                }
-                read_unlock_irq(&devs_lock);
                 return;
         }
 
@@ -675,7 +669,6 @@ static int br2684_create(void __user *arg)
 
         if (list_empty(&br2684_devs)) {
                 /* 1st br2684 device */
-                register_atmdevice_notifier(&atm_dev_notifier);
                 brdev->number = 1;
         } else
                 brdev->number = BRPRIV(list_entry_brdev(br2684_devs.prev))->number + 1;
@@ -815,6 +808,7 @@ static int __init br2684_init(void)
                 return -ENOMEM;
 #endif
         register_atm_ioctl(&br2684_ioctl_ops);
+        register_atmdevice_notifier(&atm_dev_notifier);
         return 0;
 }
 
@@ -830,9 +824,7 @@ static void __exit br2684_exit(void)
 #endif
 
 
-        /* if not already empty */
-        if (!list_empty(&br2684_devs))
-                unregister_atmdevice_notifier(&atm_dev_notifier);
+        unregister_atmdevice_notifier(&atm_dev_notifier);
 
         while (!list_empty(&br2684_devs)) {
                 net_dev = list_entry_brdev(br2684_devs.next);
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 5ed00bd7009f..137f23259a93 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -761,9 +761,11 @@ static int br_nf_dev_queue_xmit(struct sk_buff *skb)
 {
         if (skb->nfct != NULL && skb->protocol == htons(ETH_P_IP) &&
             skb->len + nf_bridge_mtu_reduction(skb) > skb->dev->mtu &&
-            !skb_is_gso(skb))
+            !skb_is_gso(skb)) {
+                /* BUG: Should really parse the IP options here. */
+                memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
                 return ip_fragment(skb, br_dev_queue_push_xmit);
-        else
+        } else
                 return br_dev_queue_push_xmit(skb);
 }
 #else
diff --git a/net/core/dev.c b/net/core/dev.c
index 3721fbb9a83c..660dd41aaaa6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2058,16 +2058,16 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev,
                                         struct sk_buff *skb)
 {
         int queue_index;
-        struct sock *sk = skb->sk;
+        const struct net_device_ops *ops = dev->netdev_ops;
 
-        queue_index = sk_tx_queue_get(sk);
-        if (queue_index < 0) {
-                const struct net_device_ops *ops = dev->netdev_ops;
+        if (ops->ndo_select_queue) {
+                queue_index = ops->ndo_select_queue(dev, skb);
+                queue_index = dev_cap_txqueue(dev, queue_index);
+        } else {
+                struct sock *sk = skb->sk;
+                queue_index = sk_tx_queue_get(sk);
+                if (queue_index < 0) {
 
-                if (ops->ndo_select_queue) {
-                        queue_index = ops->ndo_select_queue(dev, skb);
-                        queue_index = dev_cap_txqueue(dev, queue_index);
-                } else {
                         queue_index = 0;
                         if (dev->real_num_tx_queues > 1)
                                 queue_index = skb_tx_hash(dev, skb);
@@ -4845,7 +4845,7 @@ static void rollback_registered_many(struct list_head *head)
         dev = list_first_entry(head, struct net_device, unreg_list);
         call_netdevice_notifiers(NETDEV_UNREGISTER_BATCH, dev);
 
-        synchronize_net();
+        rcu_barrier();
 
         list_for_each_entry(dev, head, unreg_list)
                 dev_put(dev);
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index 9fbe7f7429b0..6743146e4d6b 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -232,7 +232,7 @@ int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
         est->last_packets = bstats->packets;
         est->avpps = rate_est->pps<<10;
 
-        spin_lock(&est_tree_lock);
+        spin_lock_bh(&est_tree_lock);
         if (!elist[idx].timer.function) {
                 INIT_LIST_HEAD(&elist[idx].list);
                 setup_timer(&elist[idx].timer, est_timer, idx);
@@ -243,7 +243,7 @@ int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
 
         list_add_rcu(&est->list, &elist[idx].list);
         gen_add_node(est);
-        spin_unlock(&est_tree_lock);
+        spin_unlock_bh(&est_tree_lock);
 
         return 0;
 }
@@ -270,7 +270,7 @@ void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
 {
         struct gen_estimator *e;
 
-        spin_lock(&est_tree_lock);
+        spin_lock_bh(&est_tree_lock);
         while ((e = gen_find_node(bstats, rate_est))) {
                 rb_erase(&e->node, &est_root);
 
@@ -281,7 +281,7 @@ void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
                 list_del_rcu(&e->list);
                 call_rcu(&e->e_rcu, __gen_kill_estimator);
         }
-        spin_unlock(&est_tree_lock);
+        spin_unlock_bh(&est_tree_lock);
 }
 EXPORT_SYMBOL(gen_kill_estimator);
 
@@ -320,9 +320,9 @@ bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
 
         ASSERT_RTNL();
 
-        spin_lock(&est_tree_lock);
+        spin_lock_bh(&est_tree_lock);
         res = gen_find_node(bstats, rate_est) != NULL;
-        spin_unlock(&est_tree_lock);
+        spin_unlock_bh(&est_tree_lock);
 
         return res;
 }
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 1cd98df412df..e6b133b77ccb 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -35,9 +35,10 @@
  *      in any case.
  */
 
-int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
+long verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
 {
-        int size, err, ct;
+        int size, ct;
+        long err;
 
         if (m->msg_namelen) {
                 if (mode == VERIFY_READ) {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 3a2513f0d0c3..c83b421341c0 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2573,6 +2573,10 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
                 __copy_skb_header(nskb, skb);
                 nskb->mac_len = skb->mac_len;
 
+                /* nskb and skb might have different headroom */
+                if (nskb->ip_summed == CHECKSUM_PARTIAL)
+                        nskb->csum_start += skb_headroom(nskb) - headroom;
+
                 skb_reset_mac_header(nskb);
                 skb_set_network_header(nskb, skb->mac_len);
                 nskb->transport_header = (nskb->network_header +
@@ -2703,7 +2707,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
                 return -E2BIG;
 
         headroom = skb_headroom(p);
-        nskb = netdev_alloc_skb(p->dev, headroom + skb_gro_offset(p));
+        nskb = alloc_skb(headroom + skb_gro_offset(p), GFP_ATOMIC);
         if (unlikely(!nskb))
                 return -ENOMEM;
 
diff --git a/net/core/sock.c b/net/core/sock.c
index b05b9b6ddb87..ef30e9d286e7 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1351,9 +1351,9 @@ int sock_i_uid(struct sock *sk)
 {
         int uid;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         uid = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : 0;
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
         return uid;
 }
 EXPORT_SYMBOL(sock_i_uid);
@@ -1362,9 +1362,9 @@ unsigned long sock_i_ino(struct sock *sk)
 {
         unsigned long ino;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         ino = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_ino : 0;
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
         return ino;
 }
 EXPORT_SYMBOL(sock_i_ino);
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 7c3a7d191249..571f8950ed06 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -46,7 +46,7 @@ config IP_ADVANCED_ROUTER
           rp_filter on use:
 
           echo 1 > /proc/sys/net/ipv4/conf/<device>/rp_filter
-           and
+           or
           echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
 
           Note that some distributions enable it in startup scripts.
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index f0550941df7b..721a8a37b45c 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -62,8 +62,11 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
         }
         if (!inet->inet_saddr)
                 inet->inet_saddr = rt->rt_src;  /* Update source address */
-        if (!inet->inet_rcv_saddr)
+        if (!inet->inet_rcv_saddr) {
                 inet->inet_rcv_saddr = rt->rt_src;
+                if (sk->sk_prot->rehash)
+                        sk->sk_prot->rehash(sk);
+        }
         inet->inet_daddr = rt->rt_dst;
         inet->inet_dport = usin->sin_port;
         sk->sk_state = TCP_ESTABLISHED;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index a43968918350..7d02a9f999fa 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -246,6 +246,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
 
         struct fib_result res;
         int no_addr, rpf, accept_local;
+        bool dev_match;
         int ret;
         struct net *net;
 
@@ -273,12 +274,22 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
         }
         *spec_dst = FIB_RES_PREFSRC(res);
         fib_combine_itag(itag, &res);
+        dev_match = false;
+
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
-        if (FIB_RES_DEV(res) == dev || res.fi->fib_nhs > 1)
+        for (ret = 0; ret < res.fi->fib_nhs; ret++) {
+                struct fib_nh *nh = &res.fi->fib_nh[ret];
+
+                if (nh->nh_dev == dev) {
+                        dev_match = true;
+                        break;
+                }
+        }
 #else
         if (FIB_RES_DEV(res) == dev)
+                dev_match = true;
 #endif
-        {
+        if (dev_match) {
                 ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;
                 fib_res_put(&res);
                 return ret;
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 79d057a939ba..4a8e370862bc 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -186,7 +186,9 @@ static inline struct tnode *node_parent_rcu(struct node *node)
 {
         struct tnode *ret = node_parent(node);
 
-        return rcu_dereference(ret);
+        return rcu_dereference_check(ret,
+                                     rcu_read_lock_held() ||
+                                     lockdep_rtnl_is_held());
 }
 
 /* Same as rcu_assign_pointer
@@ -1753,7 +1755,9 @@ static struct leaf *leaf_walk_rcu(struct tnode *p, struct node *c)
 
 static struct leaf *trie_firstleaf(struct trie *t)
 {
-        struct tnode *n = (struct tnode *) rcu_dereference(t->trie);
+        struct tnode *n = (struct tnode *) rcu_dereference_check(t->trie,
+                                                        rcu_read_lock_held() ||
+                                                        lockdep_rtnl_is_held());
 
         if (!n)
                 return NULL;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index a1ad0e7180d2..1fdcacd36ce7 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -834,7 +834,7 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
         int                     mark = 0;
 
 
-        if (len == 8) {
+        if (len == 8 || IGMP_V2_SEEN(in_dev)) {
                 if (ih->code == 0) {
                         /* Alas, old v1 router presents here. */
 
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 945b20a5ad50..35c93e8b6a46 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -45,7 +45,7 @@
 #include <net/netns/generic.h>
 #include <net/rtnetlink.h>
 
-#ifdef CONFIG_IPV6
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 #include <net/ipv6.h>
 #include <net/ip6_fib.h>
 #include <net/ip6_route.h>
@@ -699,7 +699,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
                         if ((dst = rt->rt_gateway) == 0)
                                 goto tx_error_icmp;
                 }
-#ifdef CONFIG_IPV6
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
                 else if (skb->protocol == htons(ETH_P_IPV6)) {
                         struct in6_addr *addr6;
                         int addr_type;
@@ -774,7 +774,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
                         goto tx_error;
                 }
         }
-#ifdef CONFIG_IPV6
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
         else if (skb->protocol == htons(ETH_P_IPV6)) {
                 struct rt6_info *rt6 = (struct rt6_info *)skb_dst(skb);
 
@@ -850,7 +850,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
         if ((iph->ttl = tiph->ttl) == 0) {
                 if (skb->protocol == htons(ETH_P_IP))
                         iph->ttl = old_iph->ttl;
-#ifdef CONFIG_IPV6
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
                 else if (skb->protocol == htons(ETH_P_IPV6))
                         iph->ttl = ((struct ipv6hdr *)old_iph)->hop_limit;
 #endif
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 04b69896df5f..7649d7750075 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -488,9 +488,8 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
          * we can switch to copy when see the first bad fragment.
          */
         if (skb_has_frags(skb)) {
-                struct sk_buff *frag;
+                struct sk_buff *frag, *frag2;
                 int first_len = skb_pagelen(skb);
-                int truesizes = 0;
 
                 if (first_len - hlen > mtu ||
                     ((first_len - hlen) & 7) ||
@@ -503,18 +502,18 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                         if (frag->len > mtu ||
                             ((frag->len & 7) && frag->next) ||
                             skb_headroom(frag) < hlen)
-                            goto slow_path;
+                                goto slow_path_clean;
 
                         /* Partially cloned skb? */
                         if (skb_shared(frag))
-                                goto slow_path;
+                                goto slow_path_clean;
 
                         BUG_ON(frag->sk);
                         if (skb->sk) {
                                 frag->sk = skb->sk;
                                 frag->destructor = sock_wfree;
                         }
-                        truesizes += frag->truesize;
+                        skb->truesize -= frag->truesize;
                 }
 
                 /* Everything is OK. Generate! */
@@ -524,7 +523,6 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                 frag = skb_shinfo(skb)->frag_list;
                 skb_frag_list_init(skb);
                 skb->data_len = first_len - skb_headlen(skb);
-                skb->truesize -= truesizes;
                 skb->len = first_len;
                 iph->tot_len = htons(first_len);
                 iph->frag_off = htons(IP_MF);
@@ -576,6 +574,15 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                 }
                 IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
                 return err;
+
+slow_path_clean:
+                skb_walk_frags(skb, frag2) {
+                        if (frag2 == frag)
+                                break;
+                        frag2->sk = NULL;
+                        frag2->destructor = NULL;
+                        skb->truesize += frag2->truesize;
+                }
         }
 
 slow_path:
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 6c40a8c46e79..64b70ad162e3 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1129,6 +1129,9 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
         case IP_HDRINCL:
                 val = inet->hdrincl;
                 break;
+        case IP_NODEFRAG:
+                val = inet->nodefrag;
+                break;
         case IP_MTU_DISCOVER:
                 val = inet->pmtudisc;
                 break;
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index b254dafaf429..43eec80c0e7c 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -112,6 +112,7 @@ static void send_reset(struct sk_buff *oldskb, int hook)
         /* ip_route_me_harder expects skb->dst to be set */
         skb_dst_set_noref(nskb, skb_dst(oldskb));
 
+        nskb->protocol = htons(ETH_P_IP);
         if (ip_route_me_harder(nskb, addr_type))
                 goto free_nskb;
 
diff --git a/net/ipv4/netfilter/nf_defrag_ipv4.c b/net/ipv4/netfilter/nf_defrag_ipv4.c
index eab8de32f200..f3a9b42b16c6 100644
--- a/net/ipv4/netfilter/nf_defrag_ipv4.c
+++ b/net/ipv4/netfilter/nf_defrag_ipv4.c
@@ -66,9 +66,11 @@ static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
                                           const struct net_device *out,
                                           int (*okfn)(struct sk_buff *))
 {
+        struct sock *sk = skb->sk;
         struct inet_sock *inet = inet_sk(skb->sk);
 
-        if (inet && inet->nodefrag)
+        if (sk && (sk->sk_family == PF_INET) &&
+            inet->nodefrag)
                 return NF_ACCEPT;
 
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 1679e2c0963d..ee5f419d0a56 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -893,13 +893,15 @@ static void fast_csum(__sum16 *csum,
         unsigned char s[4];
 
         if (offset & 1) {
-                s[0] = s[2] = 0;
+                s[0] = ~0;
                 s[1] = ~*optr;
+                s[2] = 0;
                 s[3] = *nptr;
         } else {
-                s[1] = s[3] = 0;
                 s[0] = ~*optr;
+                s[1] = ~0;
                 s[2] = *nptr;
+                s[3] = 0;
         }
 
         *csum = csum_fold(csum_partial(s, 4, ~csum_unfold(*csum)));
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 3f56b6e6c6aa..ac6559cb54f9 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1231,7 +1231,7 @@ restart:
                         }
 
                         if (net_ratelimit())
-                                printk(KERN_WARNING "Neighbour table overflow.\n");
+                                printk(KERN_WARNING "ipv4: Neighbour table overflow.\n");
                         rt_drop(rt);
                         return -ENOBUFS;
                 }
@@ -2738,6 +2738,11 @@ slow_output:
 }
 EXPORT_SYMBOL_GPL(__ip_route_output_key);
 
+static struct dst_entry *ipv4_blackhole_dst_check(struct dst_entry *dst, u32 cookie)
+{
+        return NULL;
+}
+
 static void ipv4_rt_blackhole_update_pmtu(struct dst_entry *dst, u32 mtu)
 {
 }
@@ -2746,7 +2751,7 @@ static struct dst_ops ipv4_dst_blackhole_ops = {
         .family                 =       AF_INET,
         .protocol               =       cpu_to_be16(ETH_P_IP),
         .destroy                =       ipv4_dst_destroy,
-        .check                  =       ipv4_dst_check,
+        .check                  =       ipv4_blackhole_dst_check,
         .update_pmtu            =       ipv4_rt_blackhole_update_pmtu,
         .entries                =       ATOMIC_INIT(0),
 };
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 3fb1428e526e..f115ea68a4ef 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -386,8 +386,6 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
          */
 
         mask = 0;
-        if (sk->sk_err)
-                mask = POLLERR;
 
         /*
          * POLLHUP is certainly not done right. But poll() doesn't
@@ -457,6 +455,11 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
                 if (tp->urg_data & TCP_URG_VALID)
                         mask |= POLLPRI;
         }
+        /* This barrier is coupled with smp_wmb() in tcp_reset() */
+        smp_rmb();
+        if (sk->sk_err)
+                mask |= POLLERR;
+
         return mask;
 }
 EXPORT_SYMBOL(tcp_poll);
@@ -940,7 +943,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
         sg = sk->sk_route_caps & NETIF_F_SG;
 
         while (--iovlen >= 0) {
-                int seglen = iov->iov_len;
+                size_t seglen = iov->iov_len;
                 unsigned char __user *from = iov->iov_base;
 
                 iov++;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e663b78a2ef6..b55f60f6fcbe 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2545,7 +2545,8 @@ static void tcp_mark_head_lost(struct sock *sk, int packets)
                         cnt += tcp_skb_pcount(skb);
 
                 if (cnt > packets) {
-                        if (tcp_is_sack(tp) || (oldcnt >= packets))
+                        if ((tcp_is_sack(tp) && !tcp_is_fack(tp)) ||
+                            (oldcnt >= packets))
                                 break;
 
                         mss = skb_shinfo(skb)->gso_size;
@@ -4048,6 +4049,8 @@ static void tcp_reset(struct sock *sk)
         default:
                 sk->sk_err = ECONNRESET;
         }
+        /* This barrier is coupled with smp_rmb() in tcp_poll() */
+        smp_wmb();
 
         if (!sock_flag(sk, SOCK_DEAD))
                 sk->sk_error_report(sk);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 32e0bef60d0a..fb23c2e63b52 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1260,6 +1260,49 @@ void udp_lib_unhash(struct sock *sk)
 }
 EXPORT_SYMBOL(udp_lib_unhash);
 
+/*
+ * inet_rcv_saddr was changed, we must rehash secondary hash
+ */
+void udp_lib_rehash(struct sock *sk, u16 newhash)
+{
+        if (sk_hashed(sk)) {
+                struct udp_table *udptable = sk->sk_prot->h.udp_table;
+                struct udp_hslot *hslot, *hslot2, *nhslot2;
+
+                hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash);
+                nhslot2 = udp_hashslot2(udptable, newhash);
+                udp_sk(sk)->udp_portaddr_hash = newhash;
+                if (hslot2 != nhslot2) {
+                        hslot = udp_hashslot(udptable, sock_net(sk),
+                                             udp_sk(sk)->udp_port_hash);
+                        /* we must lock primary chain too */
+                        spin_lock_bh(&hslot->lock);
+
+                        spin_lock(&hslot2->lock);
+                        hlist_nulls_del_init_rcu(&udp_sk(sk)->udp_portaddr_node);
+                        hslot2->count--;
+                        spin_unlock(&hslot2->lock);
+
+                        spin_lock(&nhslot2->lock);
+                        hlist_nulls_add_head_rcu(&udp_sk(sk)->udp_portaddr_node,
+                                                 &nhslot2->head);
+                        nhslot2->count++;
+                        spin_unlock(&nhslot2->lock);
+
+                        spin_unlock_bh(&hslot->lock);
+                }
+        }
+}
+EXPORT_SYMBOL(udp_lib_rehash);
+
+static void udp_v4_rehash(struct sock *sk)
+{
+        u16 new_hash = udp4_portaddr_hash(sock_net(sk),
+                                          inet_sk(sk)->inet_rcv_saddr,
+                                          inet_sk(sk)->inet_num);
+        udp_lib_rehash(sk, new_hash);
+}
+
 static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
         int rc;
@@ -1843,6 +1886,7 @@ struct proto udp_prot = {
         .backlog_rcv       = __udp_queue_rcv_skb,
         .hash              = udp_lib_hash,
         .unhash            = udp_lib_unhash,
+        .rehash            = udp_v4_rehash,
         .get_port          = udp_v4_get_port,
         .memory_allocated  = &udp_memory_allocated,
         .sysctl_mem        = sysctl_udp_mem,
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 869078d4eeb9..a580349f0b8a 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -61,7 +61,7 @@ static int xfrm4_get_saddr(struct net *net,
 
 static int xfrm4_get_tos(struct flowi *fl)
 {
-        return fl->fl4_tos;
+        return IPTOS_RT_MASK & fl->fl4_tos; /* Strip ECN bits */
 }
 
 static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst,
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 1ef1366a0a03..47947624eccc 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -21,21 +21,25 @@ static int xfrm4_init_flags(struct xfrm_state *x)
 }
 
 static void
-__xfrm4_init_tempsel(struct xfrm_state *x, struct flowi *fl,
-                     struct xfrm_tmpl *tmpl,
-                     xfrm_address_t *daddr, xfrm_address_t *saddr)
+__xfrm4_init_tempsel(struct xfrm_selector *sel, struct flowi *fl)
+{
+        sel->daddr.a4 = fl->fl4_dst;
+        sel->saddr.a4 = fl->fl4_src;
+        sel->dport = xfrm_flowi_dport(fl);
+        sel->dport_mask = htons(0xffff);
+        sel->sport = xfrm_flowi_sport(fl);
+        sel->sport_mask = htons(0xffff);
+        sel->family = AF_INET;
+        sel->prefixlen_d = 32;
+        sel->prefixlen_s = 32;
+        sel->proto = fl->proto;
+        sel->ifindex = fl->oif;
+}
+
+static void
+xfrm4_init_temprop(struct xfrm_state *x, struct xfrm_tmpl *tmpl,
+                   xfrm_address_t *daddr, xfrm_address_t *saddr)
 {
-        x->sel.daddr.a4 = fl->fl4_dst;
-        x->sel.saddr.a4 = fl->fl4_src;
-        x->sel.dport = xfrm_flowi_dport(fl);
-        x->sel.dport_mask = htons(0xffff);
-        x->sel.sport = xfrm_flowi_sport(fl);
-        x->sel.sport_mask = htons(0xffff);
-        x->sel.family = AF_INET;
-        x->sel.prefixlen_d = 32;
-        x->sel.prefixlen_s = 32;
-        x->sel.proto = fl->proto;
-        x->sel.ifindex = fl->oif;
         x->id = tmpl->id;
         if (x->id.daddr.a4 == 0)
                 x->id.daddr.a4 = daddr->a4;
@@ -70,6 +74,7 @@ static struct xfrm_state_afinfo xfrm4_state_afinfo = {
         .owner                  = THIS_MODULE,
         .init_flags             = xfrm4_init_flags,
         .init_tempsel           = __xfrm4_init_tempsel,
+        .init_temprop           = xfrm4_init_temprop,
         .output                 = xfrm4_output,
         .extract_input          = xfrm4_extract_input,
         .extract_output         = xfrm4_extract_output,
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index ab70a3fbcafa..324fac3b6c16 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4637,10 +4637,12 @@ int __init addrconf_init(void)
         if (err < 0) {
                 printk(KERN_CRIT "IPv6 Addrconf:"
                        " cannot initialize default policy table: %d.\n", err);
-                return err;
+                goto out;
         }
 
-        register_pernet_subsys(&addrconf_ops);
+        err = register_pernet_subsys(&addrconf_ops);
+        if (err < 0)
+                goto out_addrlabel;
 
         /* The addrconf netdev notifier requires that loopback_dev
          * has it's ipv6 private information allocated and setup
@@ -4692,7 +4694,9 @@ errout:
         unregister_netdevice_notifier(&ipv6_dev_notf);
 errlo:
         unregister_pernet_subsys(&addrconf_ops);
-
+out_addrlabel:
+        ipv6_addr_label_cleanup();
+out:
         return err;
 }
 
@@ -4703,6 +4707,7 @@ void addrconf_cleanup(void)
 
         unregister_netdevice_notifier(&ipv6_dev_notf);
         unregister_pernet_subsys(&addrconf_ops);
+        ipv6_addr_label_cleanup();
 
         rtnl_lock();
 
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index f0e774cea386..8175f802651b 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -393,6 +393,11 @@ int __init ipv6_addr_label_init(void)
         return register_pernet_subsys(&ipv6_addr_label_ops);
 }
 
+void ipv6_addr_label_cleanup(void)
+{
+        unregister_pernet_subsys(&ipv6_addr_label_ops);
+}
+
 static const struct nla_policy ifal_policy[IFAL_MAX+1] = {
         [IFAL_ADDRESS]          = { .len = sizeof(struct in6_addr), },
         [IFAL_LABEL]            = { .len = sizeof(u32), },
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 7d929a22cbc2..ef371aa01ac5 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -105,9 +105,12 @@ ipv4_connected:
                 if (ipv6_addr_any(&np->saddr))
                         ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
 
-                if (ipv6_addr_any(&np->rcv_saddr))
+                if (ipv6_addr_any(&np->rcv_saddr)) {
                         ipv6_addr_set_v4mapped(inet->inet_rcv_saddr,
                                                &np->rcv_saddr);
+                        if (sk->sk_prot->rehash)
+                                sk->sk_prot->rehash(sk);
+                }
 
                 goto out;
         }
@@ -181,6 +184,8 @@ ipv4_connected:
         if (ipv6_addr_any(&np->rcv_saddr)) {
                 ipv6_addr_copy(&np->rcv_saddr, &fl.fl6_src);
                 inet->inet_rcv_saddr = LOOPBACK4_IPV6;
+                if (sk->sk_prot->rehash)
+                        sk->sk_prot->rehash(sk);
         }
 
         ip6_dst_store(sk, dst,
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index d40b330c0ee6..980912ed7a38 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -639,7 +639,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 
         if (skb_has_frags(skb)) {
                 int first_len = skb_pagelen(skb);
-                int truesizes = 0;
+                struct sk_buff *frag2;
 
                 if (first_len - hlen > mtu ||
                     ((first_len - hlen) & 7) ||
@@ -651,18 +651,18 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                         if (frag->len > mtu ||
                             ((frag->len & 7) && frag->next) ||
                             skb_headroom(frag) < hlen)
-                            goto slow_path;
+                                goto slow_path_clean;
 
                         /* Partially cloned skb? */
                         if (skb_shared(frag))
-                                goto slow_path;
+                                goto slow_path_clean;
 
                         BUG_ON(frag->sk);
                         if (skb->sk) {
                                 frag->sk = skb->sk;
                                 frag->destructor = sock_wfree;
-                                truesizes += frag->truesize;
                         }
+                        skb->truesize -= frag->truesize;
                 }
 
                 err = 0;
@@ -693,7 +693,6 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 
                 first_len = skb_pagelen(skb);
                 skb->data_len = first_len - skb_headlen(skb);
-                skb->truesize -= truesizes;
                 skb->len = first_len;
                 ipv6_hdr(skb)->payload_len = htons(first_len -
                                                    sizeof(struct ipv6hdr));
@@ -756,6 +755,15 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                               IPSTATS_MIB_FRAGFAILS);
                 dst_release(&rt->dst);
                 return err;
+
+slow_path_clean:
+                skb_walk_frags(skb, frag2) {
+                        if (frag2 == frag)
+                                break;
+                        frag2->sk = NULL;
+                        frag2->destructor = NULL;
+                        skb->truesize += frag2->truesize;
+                }
         }
 
 slow_path:
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 13ef5bc05cf5..578f3c1a16db 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -113,14 +113,6 @@ static void nf_skb_free(struct sk_buff *skb)
                 kfree_skb(NFCT_FRAG6_CB(skb)->orig);
 }
 
-/* Memory Tracking Functions. */
-static void frag_kfree_skb(struct sk_buff *skb)
-{
-        atomic_sub(skb->truesize, &nf_init_frags.mem);
-        nf_skb_free(skb);
-        kfree_skb(skb);
-}
-
 /* Destruction primitives. */
 
 static __inline__ void fq_put(struct nf_ct_frag6_queue *fq)
@@ -282,66 +274,22 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
         }
 
 found:
-        /* We found where to put this one.  Check for overlap with
-         * preceding fragment, and, if needed, align things so that
-         * any overlaps are eliminated.
-         */
-        if (prev) {
-                int i = (NFCT_FRAG6_CB(prev)->offset + prev->len) - offset;
-
-                if (i > 0) {
-                        offset += i;
-                        if (end <= offset) {
-                                pr_debug("overlap\n");
-                                goto err;
-                        }
-                        if (!pskb_pull(skb, i)) {
-                                pr_debug("Can't pull\n");
-                                goto err;
-                        }
-                        if (skb->ip_summed != CHECKSUM_UNNECESSARY)
-                                skb->ip_summed = CHECKSUM_NONE;
-                }
-        }
-
-        /* Look for overlap with succeeding segments.
-         * If we can merge fragments, do it.
+        /* RFC5722, Section 4:
+         *                                  When reassembling an IPv6 datagram, if
+         *   one or more its constituent fragments is determined to be an
+         *   overlapping fragment, the entire datagram (and any constituent
+         *   fragments, including those not yet received) MUST be silently
+         *   discarded.
          */
-        while (next && NFCT_FRAG6_CB(next)->offset < end) {
-                /* overlap is 'i' bytes */
-                int i = end - NFCT_FRAG6_CB(next)->offset;
-
-                if (i < next->len) {
-                        /* Eat head of the next overlapped fragment
-                         * and leave the loop. The next ones cannot overlap.
-                         */
-                        pr_debug("Eat head of the overlapped parts.: %d", i);
-                        if (!pskb_pull(next, i))
-                                goto err;
 
-                        /* next fragment */
-                        NFCT_FRAG6_CB(next)->offset += i;
-                        fq->q.meat -= i;
-                        if (next->ip_summed != CHECKSUM_UNNECESSARY)
-                                next->ip_summed = CHECKSUM_NONE;
-                        break;
-                } else {
-                        struct sk_buff *free_it = next;
-
-                        /* Old fragmnet is completely overridden with
-                         * new one drop it.
-                         */
-                        next = next->next;
+        /* Check for overlap with preceding fragment. */
+        if (prev &&
+            (NFCT_FRAG6_CB(prev)->offset + prev->len) - offset > 0)
+                goto discard_fq;
 
-                        if (prev)
-                                prev->next = next;
-                        else
-                                fq->q.fragments = next;
-
-                        fq->q.meat -= free_it->len;
-                        frag_kfree_skb(free_it);
-                }
-        }
+        /* Look for overlap with succeeding segment. */
+        if (next && NFCT_FRAG6_CB(next)->offset < end)
+                goto discard_fq;
 
         NFCT_FRAG6_CB(skb)->offset = offset;
 
@@ -371,6 +319,8 @@ found:
         write_unlock(&nf_frags.lock);
         return 0;
 
+discard_fq:
+        fq_kill(fq);
 err:
         return -1;
 }
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 545c4141b755..64cfef1b0a4c 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -149,13 +149,6 @@ int ip6_frag_match(struct inet_frag_queue *q, void *a)
 }
 EXPORT_SYMBOL(ip6_frag_match);
 
-/* Memory Tracking Functions. */
-static void frag_kfree_skb(struct netns_frags *nf, struct sk_buff *skb)
-{
-        atomic_sub(skb->truesize, &nf->mem);
-        kfree_skb(skb);
-}
-
 void ip6_frag_init(struct inet_frag_queue *q, void *a)
 {
         struct frag_queue *fq = container_of(q, struct frag_queue, q);
@@ -346,58 +339,22 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
         }
 
 found:
-        /* We found where to put this one.  Check for overlap with
-         * preceding fragment, and, if needed, align things so that
-         * any overlaps are eliminated.
+        /* RFC5722, Section 4:
+         *                                  When reassembling an IPv6 datagram, if
+         *   one or more its constituent fragments is determined to be an
+         *   overlapping fragment, the entire datagram (and any constituent
+         *   fragments, including those not yet received) MUST be silently
+         *   discarded.
          */
-        if (prev) {
-                int i = (FRAG6_CB(prev)->offset + prev->len) - offset;
 
-                if (i > 0) {
-                        offset += i;
-                        if (end <= offset)
-                                goto err;
-                        if (!pskb_pull(skb, i))
-                                goto err;
-                        if (skb->ip_summed != CHECKSUM_UNNECESSARY)
-                                skb->ip_summed = CHECKSUM_NONE;
-                }
-        }
+        /* Check for overlap with preceding fragment. */
+        if (prev &&
+            (FRAG6_CB(prev)->offset + prev->len) - offset > 0)
+                goto discard_fq;
 
-        /* Look for overlap with succeeding segments.
-         * If we can merge fragments, do it.
-         */
-        while (next && FRAG6_CB(next)->offset < end) {
-                int i = end - FRAG6_CB(next)->offset; /* overlap is 'i' bytes */
-
-                if (i < next->len) {
-                        /* Eat head of the next overlapped fragment
-                         * and leave the loop. The next ones cannot overlap.
-                         */
-                        if (!pskb_pull(next, i))
-                                goto err;
-                        FRAG6_CB(next)->offset += i;    /* next fragment */
-                        fq->q.meat -= i;
-                        if (next->ip_summed != CHECKSUM_UNNECESSARY)
-                                next->ip_summed = CHECKSUM_NONE;
-                        break;
-                } else {
-                        struct sk_buff *free_it = next;
-
-                        /* Old fragment is completely overridden with
-                         * new one drop it.
-                         */
-                        next = next->next;
-
-                        if (prev)
-                                prev->next = next;
-                        else
-                                fq->q.fragments = next;
-
-                        fq->q.meat -= free_it->len;
-                        frag_kfree_skb(fq->q.net, free_it);
-                }
-        }
+        /* Look for overlap with succeeding segment. */
+        if (next && FRAG6_CB(next)->offset < end)
+                goto discard_fq;
 
         FRAG6_CB(skb)->offset = offset;
 
@@ -436,6 +393,8 @@ found:
         write_unlock(&ip6_frags.lock);
         return -1;
 
+discard_fq:
+        fq_kill(fq);
 err:
         IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
                       IPSTATS_MIB_REASMFAILS);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index d126365ac046..8323136bdc54 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -670,7 +670,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *dad
 
                         if (net_ratelimit())
                                 printk(KERN_WARNING
-                                       "Neighbour table overflow.\n");
+                                       "ipv6: Neighbour table overflow.\n");
                         dst_free(&rt->dst);
                         return NULL;
                 }
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 1dd1affdead2..5acb3560ff15 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -111,6 +111,15 @@ int udp_v6_get_port(struct sock *sk, unsigned short snum)
         return udp_lib_get_port(sk, snum, ipv6_rcv_saddr_equal, hash2_nulladdr);
 }
 
+static void udp_v6_rehash(struct sock *sk)
+{
+        u16 new_hash = udp6_portaddr_hash(sock_net(sk),
+                                          &inet6_sk(sk)->rcv_saddr,
+                                          inet_sk(sk)->inet_num);
+
+        udp_lib_rehash(sk, new_hash);
+}
+
 static inline int compute_score(struct sock *sk, struct net *net,
                                 unsigned short hnum,
                                 struct in6_addr *saddr, __be16 sport,
@@ -1447,6 +1456,7 @@ struct proto udpv6_prot = {
         .backlog_rcv       = udpv6_queue_rcv_skb,
         .hash              = udp_lib_hash,
         .unhash            = udp_lib_unhash,
+        .rehash            = udp_v6_rehash,
         .get_port          = udp_v6_get_port,
         .memory_allocated  = &udp_memory_allocated,
         .sysctl_mem        = sysctl_udp_mem,
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index f417b77fa0e1..a67575d472a3 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -20,23 +20,27 @@
 #include <net/addrconf.h>
 
 static void
-__xfrm6_init_tempsel(struct xfrm_state *x, struct flowi *fl,
-                     struct xfrm_tmpl *tmpl,
-                     xfrm_address_t *daddr, xfrm_address_t *saddr)
+__xfrm6_init_tempsel(struct xfrm_selector *sel, struct flowi *fl)
 {
         /* Initialize temporary selector matching only
          * to current session. */
-        ipv6_addr_copy((struct in6_addr *)&x->sel.daddr, &fl->fl6_dst);
-        ipv6_addr_copy((struct in6_addr *)&x->sel.saddr, &fl->fl6_src);
-        x->sel.dport = xfrm_flowi_dport(fl);
-        x->sel.dport_mask = htons(0xffff);
-        x->sel.sport = xfrm_flowi_sport(fl);
-        x->sel.sport_mask = htons(0xffff);
-        x->sel.family = AF_INET6;
-        x->sel.prefixlen_d = 128;
-        x->sel.prefixlen_s = 128;
-        x->sel.proto = fl->proto;
-        x->sel.ifindex = fl->oif;
+        ipv6_addr_copy((struct in6_addr *)&sel->daddr, &fl->fl6_dst);
+        ipv6_addr_copy((struct in6_addr *)&sel->saddr, &fl->fl6_src);
+        sel->dport = xfrm_flowi_dport(fl);
+        sel->dport_mask = htons(0xffff);
+        sel->sport = xfrm_flowi_sport(fl);
+        sel->sport_mask = htons(0xffff);
+        sel->family = AF_INET6;
+        sel->prefixlen_d = 128;
+        sel->prefixlen_s = 128;
+        sel->proto = fl->proto;
+        sel->ifindex = fl->oif;
+}
+
+static void
+xfrm6_init_temprop(struct xfrm_state *x, struct xfrm_tmpl *tmpl,
+                   xfrm_address_t *daddr, xfrm_address_t *saddr)
+{
         x->id = tmpl->id;
         if (ipv6_addr_any((struct in6_addr*)&x->id.daddr))
                 memcpy(&x->id.daddr, daddr, sizeof(x->sel.daddr));
@@ -168,6 +172,7 @@ static struct xfrm_state_afinfo xfrm6_state_afinfo = {
         .eth_proto              = htons(ETH_P_IPV6),
         .owner                  = THIS_MODULE,
         .init_tempsel           = __xfrm6_init_tempsel,
+        .init_temprop           = xfrm6_init_temprop,
         .tmpl_sort              = __xfrm6_tmpl_sort,
         .state_sort             = __xfrm6_state_sort,
         .output                 = xfrm6_output,
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 79986a674f6e..fd55b5135de5 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -824,8 +824,8 @@ static int irda_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 
         err = irda_open_tsap(self, addr->sir_lsap_sel, addr->sir_name);
         if (err < 0) {
-                kfree(self->ias_obj->name);
-                kfree(self->ias_obj);
+                irias_delete_object(self->ias_obj);
+                self->ias_obj = NULL;
                 goto out;
         }
 
diff --git a/net/irda/irlan/irlan_common.c b/net/irda/irlan/irlan_common.c
index a788f9e9427d..6130f9d9dbe1 100644
--- a/net/irda/irlan/irlan_common.c
+++ b/net/irda/irlan/irlan_common.c
@@ -1102,7 +1102,7 @@ int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len)
         memcpy(&val_len, buf+n, 2); /* To avoid alignment problems */
         le16_to_cpus(&val_len); n+=2;
 
-        if (val_len > 1016) {
+        if (val_len >= 1016) {
                 IRDA_DEBUG(2, "%s(), parameter length to long\n", __func__ );
                 return -RSP_INVALID_COMMAND_FORMAT;
         }
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 023ba820236f..582612998211 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -1024,7 +1024,8 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname,
 {
         struct sock *sk = sock->sk;
         struct llc_sock *llc = llc_sk(sk);
-        int rc = -EINVAL, opt;
+        unsigned int opt;
+        int rc = -EINVAL;
 
         lock_sock(sk);
         if (unlikely(level != SOL_LLC || optlen != sizeof(int)))
diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c
index e4dae0244d76..cf4aea3ba30f 100644
--- a/net/llc/llc_station.c
+++ b/net/llc/llc_station.c
@@ -689,7 +689,7 @@ static void llc_station_rcv(struct sk_buff *skb)
 
 int __init llc_station_init(void)
 {
-        u16 rc = -ENOBUFS;
+        int rc = -ENOBUFS;
         struct sk_buff *skb;
         struct llc_station_state_ev *ev;
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 798a91b100cc..ded5c3843e06 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -732,6 +732,12 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
         rtnl_unlock();
 
+        /*
+         * Now all work items will be gone, but the
+         * timer might still be armed, so delete it
+         */
+        del_timer_sync(&local->work_timer);
+
         cancel_work_sync(&local->reconfig_filter);
 
         ieee80211_clear_tx_pending(local);
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 4f8ddba48011..4c2f89df5cce 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -924,6 +924,7 @@ handle_response(int af, struct sk_buff *skb, struct ip_vs_protocol *pp,
 
         ip_vs_out_stats(cp, skb);
         ip_vs_set_state(cp, IP_VS_DIR_OUTPUT, skb, pp);
+        ip_vs_update_conntrack(skb, cp, 0);
         ip_vs_conn_put(cp);
 
         skb->ipvs_property = 1;
diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c
index f228a17ec649..7e9af5b76d9e 100644
--- a/net/netfilter/ipvs/ip_vs_ftp.c
+++ b/net/netfilter/ipvs/ip_vs_ftp.c
@@ -45,6 +45,7 @@
 #include <linux/netfilter.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_expect.h>
+#include <net/netfilter/nf_nat.h>
 #include <net/netfilter/nf_nat_helper.h>
 #include <linux/gfp.h>
 #include <net/protocol.h>
@@ -359,7 +360,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
                 buf_len = strlen(buf);
 
                 ct = nf_ct_get(skb, &ctinfo);
-                if (ct && !nf_ct_is_untracked(ct)) {
+                if (ct && !nf_ct_is_untracked(ct) && nfct_nat(ct)) {
                         /* If mangling fails this function will return 0
                          * which will cause the packet to be dropped.
                          * Mangling can only fail under memory pressure,
@@ -409,7 +410,6 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp,
         union nf_inet_addr to;
         __be16 port;
         struct ip_vs_conn *n_cp;
-        struct nf_conn *ct;
 
 #ifdef CONFIG_IP_VS_IPV6
         /* This application helper doesn't work with IPv6 yet,
@@ -496,11 +496,6 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp,
                 ip_vs_control_add(n_cp, cp);
         }
 
-        ct = (struct nf_conn *)skb->nfct;
-        if (ct && ct != &nf_conntrack_untracked)
-                ip_vs_expect_related(skb, ct, n_cp,
-                                     IPPROTO_TCP, &n_cp->dport, 1);
-
         /*
          *      Move tunnel to listen state
          */
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 21e1a5e9b9d3..49df6bea6a2d 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -349,8 +349,8 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 }
 #endif
 
-static void
-ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp)
+void
+ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp, int outin)
 {
         struct nf_conn *ct = (struct nf_conn *)skb->nfct;
         struct nf_conntrack_tuple new_tuple;
@@ -365,11 +365,17 @@ ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp)
          * real-server we will see RIP->DIP.
          */
         new_tuple = ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-        new_tuple.src.u3 = cp->daddr;
+        if (outin)
+                new_tuple.src.u3 = cp->daddr;
+        else
+                new_tuple.dst.u3 = cp->vaddr;
         /*
          * This will also take care of UDP and other protocols.
          */
-        new_tuple.src.u.tcp.port = cp->dport;
+        if (outin)
+                new_tuple.src.u.tcp.port = cp->dport;
+        else
+                new_tuple.dst.u.tcp.port = cp->vport;
         nf_conntrack_alter_reply(ct, &new_tuple);
 }
 
@@ -428,7 +434,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 
         IP_VS_DBG_PKT(10, pp, skb, 0, "After DNAT");
 
-        ip_vs_update_conntrack(skb, cp);
+        ip_vs_update_conntrack(skb, cp, 1);
 
         /* FIXME: when application helper enlarges the packet and the length
            is larger than the MTU of outgoing device, there will be still
@@ -506,7 +512,7 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
 
         IP_VS_DBG_PKT(10, pp, skb, 0, "After DNAT");
 
-        ip_vs_update_conntrack(skb, cp);
+        ip_vs_update_conntrack(skb, cp, 1);
 
         /* FIXME: when application helper enlarges the packet and the length
            is larger than the MTU of outgoing device, there will be still
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c
index 7dcf7a404190..8d9e4c949b96 100644
--- a/net/netfilter/nf_conntrack_extend.c
+++ b/net/netfilter/nf_conntrack_extend.c
@@ -48,15 +48,17 @@ nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp)
 {
         unsigned int off, len;
         struct nf_ct_ext_type *t;
+        size_t alloc_size;
 
         rcu_read_lock();
         t = rcu_dereference(nf_ct_ext_types[id]);
         BUG_ON(t == NULL);
         off = ALIGN(sizeof(struct nf_ct_ext), t->align);
         len = off + t->len;
+        alloc_size = t->alloc_size;
         rcu_read_unlock();
 
-        *ext = kzalloc(t->alloc_size, gfp);
+        *ext = kzalloc(alloc_size, gfp);
         if (!*ext)
                 return NULL;
 
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index 53d892210a04..f64de9544866 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -1376,7 +1376,7 @@ static int sip_help_tcp(struct sk_buff *skb, unsigned int protoff,
         unsigned int msglen, origlen;
         const char *dptr, *end;
         s16 diff, tdiff = 0;
-        int ret;
+        int ret = NF_ACCEPT;
         typeof(nf_nat_sip_seq_adjust_hook) nf_nat_sip_seq_adjust;
 
         if (ctinfo != IP_CT_ESTABLISHED &&
diff --git a/net/netfilter/nf_tproxy_core.c b/net/netfilter/nf_tproxy_core.c
index 5490fc37c92d..daab8c4a903c 100644
--- a/net/netfilter/nf_tproxy_core.c
+++ b/net/netfilter/nf_tproxy_core.c
@@ -70,7 +70,11 @@ nf_tproxy_destructor(struct sk_buff *skb)
 int
 nf_tproxy_assign_sock(struct sk_buff *skb, struct sock *sk)
 {
-        if (inet_sk(sk)->transparent) {
+        bool transparent = (sk->sk_state == TCP_TIME_WAIT) ?
+                                inet_twsk(sk)->tw_transparent :
+                                inet_sk(sk)->transparent;
+
+        if (transparent) {
                 skb_orphan(skb);
                 skb->sk = sk;
                 skb->destructor = nf_tproxy_destructor;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 980fe4ad0016..cd96ed3ccee4 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2102,6 +2102,26 @@ static void __net_exit netlink_net_exit(struct net *net)
 #endif
 }
 
+static void __init netlink_add_usersock_entry(void)
+{
+        unsigned long *listeners;
+        int groups = 32;
+
+        listeners = kzalloc(NLGRPSZ(groups) + sizeof(struct listeners_rcu_head),
+                            GFP_KERNEL);
+        if (!listeners)
+                panic("netlink_add_usersock_entry: Cannot allocate listneres\n");
+
+        netlink_table_grab();
+
+        nl_table[NETLINK_USERSOCK].groups = groups;
+        nl_table[NETLINK_USERSOCK].listeners = listeners;
+        nl_table[NETLINK_USERSOCK].module = THIS_MODULE;
+        nl_table[NETLINK_USERSOCK].registered = 1;
+
+        netlink_table_ungrab();
+}
+
 static struct pernet_operations __net_initdata netlink_net_ops = {
         .init = netlink_net_init,
         .exit = netlink_net_exit,
@@ -2150,6 +2170,8 @@ static int __init netlink_proto_init(void)
                 hash->rehash_time = jiffies;
         }
 
+        netlink_add_usersock_entry();
+
         sock_register(&netlink_family_ops);
         register_pernet_subsys(&netlink_net_ops);
         /* The netlink device handler may be needed early. */
diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index c397524c039c..c519939e8da9 100644
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -43,7 +43,7 @@ void rds_tcp_state_change(struct sock *sk)
         struct rds_connection *conn;
         struct rds_tcp_connection *tc;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         conn = sk->sk_user_data;
         if (conn == NULL) {
                 state_change = sk->sk_state_change;
@@ -68,7 +68,7 @@ void rds_tcp_state_change(struct sock *sk)
                         break;
         }
 out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
         state_change(sk);
 }
 
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 975183fe6950..27844f231d10 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -114,7 +114,7 @@ void rds_tcp_listen_data_ready(struct sock *sk, int bytes)
 
         rdsdebug("listen data ready sk %p\n", sk);
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         ready = sk->sk_user_data;
         if (ready == NULL) { /* check for teardown race */
                 ready = sk->sk_data_ready;
@@ -131,7 +131,7 @@ void rds_tcp_listen_data_ready(struct sock *sk, int bytes)
                 queue_work(rds_wq, &rds_tcp_listen_work);
 
 out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
         ready(sk, bytes);
 }
 
diff --git a/net/rds/tcp_recv.c b/net/rds/tcp_recv.c
index 1aba6878fa5d..e43797404102 100644
--- a/net/rds/tcp_recv.c
+++ b/net/rds/tcp_recv.c
@@ -324,7 +324,7 @@ void rds_tcp_data_ready(struct sock *sk, int bytes)
 
         rdsdebug("data ready sk %p bytes %d\n", sk, bytes);
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         conn = sk->sk_user_data;
         if (conn == NULL) { /* check for teardown race */
                 ready = sk->sk_data_ready;
@@ -338,7 +338,7 @@ void rds_tcp_data_ready(struct sock *sk, int bytes)
         if (rds_tcp_read_sock(conn, GFP_ATOMIC, KM_SOFTIRQ0) == -ENOMEM)
                 queue_delayed_work(rds_wq, &conn->c_recv_w, 0);
 out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
         ready(sk, bytes);
 }
 
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index a28b895ff0d1..2f012a07d94d 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
@@ -224,7 +224,7 @@ void rds_tcp_write_space(struct sock *sk)
         struct rds_connection *conn;
         struct rds_tcp_connection *tc;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         conn = sk->sk_user_data;
         if (conn == NULL) {
                 write_space = sk->sk_write_space;
@@ -244,7 +244,7 @@ void rds_tcp_write_space(struct sock *sk)
                 queue_delayed_work(rds_wq, &conn->c_send_w, 0);
 
 out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 
         /*
          * write_space is only called when data leaves tcp's send queue if
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 8e45e76a95f5..d952e7eac188 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -679,7 +679,7 @@ static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
         if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1)
                 return -EINVAL;
 
-        if (addr->srose_ndigis > ROSE_MAX_DIGIS)
+        if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS)
                 return -EINVAL;
 
         if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) {
@@ -739,7 +739,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le
         if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1)
                 return -EINVAL;
 
-        if (addr->srose_ndigis > ROSE_MAX_DIGIS)
+        if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS)
                 return -EINVAL;
 
         /* Source + Destination digis should not exceed ROSE_MAX_DIGIS */
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 537a48732e9e..7ebf7439b478 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -350,22 +350,19 @@ tcf_act_police_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 {
         unsigned char *b = skb_tail_pointer(skb);
         struct tcf_police *police = a->priv;
-        struct tc_police opt;
-
-        opt.index = police->tcf_index;
-        opt.action = police->tcf_action;
-        opt.mtu = police->tcfp_mtu;
-        opt.burst = police->tcfp_burst;
-        opt.refcnt = police->tcf_refcnt - ref;
-        opt.bindcnt = police->tcf_bindcnt - bind;
+        struct tc_police opt = {
+                .index = police->tcf_index,
+                .action = police->tcf_action,
+                .mtu = police->tcfp_mtu,
+                .burst = police->tcfp_burst,
+                .refcnt = police->tcf_refcnt - ref,
+                .bindcnt = police->tcf_bindcnt - bind,
+        };
+
         if (police->tcfp_R_tab)
                 opt.rate = police->tcfp_R_tab->rate;
-        else
-                memset(&opt.rate, 0, sizeof(opt.rate));
         if (police->tcfp_P_tab)
                 opt.peakrate = police->tcfp_P_tab->rate;
-        else
-                memset(&opt.peakrate, 0, sizeof(opt.peakrate));
         NLA_PUT(skb, TCA_POLICE_TBF, sizeof(opt), &opt);
         if (police->tcfp_result)
                 NLA_PUT_U32(skb, TCA_POLICE_RESULT, police->tcfp_result);
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 340662789529..6318e1136b83 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -255,10 +255,6 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
                         error = -EINVAL;
                         goto err_out;
                 }
-                if (!list_empty(&flow->list)) {
-                        error = -EEXIST;
-                        goto err_out;
-                }
         } else {
                 int i;
                 unsigned long cl;
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index abd904be4287..47496098d35c 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -761,8 +761,8 @@ init_vf(struct hfsc_class *cl, unsigned int len)
                 if (f != cl->cl_f) {
                         cl->cl_f = f;
                         cftree_update(cl);
-                        update_cfmin(cl->cl_parent);
                 }
+                update_cfmin(cl->cl_parent);
         }
 }
 
diff --git a/net/sctp/output.c b/net/sctp/output.c
index a646681f5acd..bcc4590ccaf2 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -92,7 +92,6 @@ struct sctp_packet *sctp_packet_config(struct sctp_packet *packet,
         SCTP_DEBUG_PRINTK("%s: packet:%p vtag:0x%x\n", __func__,
                           packet, vtag);
 
-        sctp_packet_reset(packet);
         packet->vtag = vtag;
 
         if (ecn_capable && sctp_packet_empty(packet)) {
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 24b2cd555637..d344dc481ccc 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -1232,6 +1232,18 @@ out:
         return 0;
 }
 
+static bool list_has_sctp_addr(const struct list_head *list,
+                               union sctp_addr *ipaddr)
+{
+        struct sctp_transport *addr;
+
+        list_for_each_entry(addr, list, transports) {
+                if (sctp_cmp_addr_exact(ipaddr, &addr->ipaddr))
+                        return true;
+        }
+
+        return false;
+}
 /* A restart is occurring, check to make sure no new addresses
  * are being added as we may be under a takeover attack.
  */
@@ -1240,10 +1252,10 @@ static int sctp_sf_check_restart_addrs(const struct sctp_association *new_asoc,
                                        struct sctp_chunk *init,
                                        sctp_cmd_seq_t *commands)
 {
-        struct sctp_transport *new_addr, *addr;
-        int found;
+        struct sctp_transport *new_addr;
+        int ret = 1;
 
-        /* Implementor's Guide - Sectin 5.2.2
+        /* Implementor's Guide - Section 5.2.2
          * ...
          * Before responding the endpoint MUST check to see if the
          * unexpected INIT adds new addresses to the association. If new
@@ -1254,31 +1266,19 @@ static int sctp_sf_check_restart_addrs(const struct sctp_association *new_asoc,
         /* Search through all current addresses and make sure
          * we aren't adding any new ones.
          */
-        new_addr = NULL;
-        found = 0;
-
         list_for_each_entry(new_addr, &new_asoc->peer.transport_addr_list,
-                        transports) {
-                found = 0;
-                list_for_each_entry(addr, &asoc->peer.transport_addr_list,
-                                transports) {
-                        if (sctp_cmp_addr_exact(&new_addr->ipaddr,
-                                                &addr->ipaddr)) {
-                                found = 1;
-                                break;
-                        }
-                }
-                if (!found)
+                            transports) {
+                if (!list_has_sctp_addr(&asoc->peer.transport_addr_list,
+                                        &new_addr->ipaddr)) {
+                        sctp_sf_send_restart_abort(&new_addr->ipaddr, init,
+                                                   commands);
+                        ret = 0;
                         break;
-        }
-
-        /* If a new address was added, ABORT the sender. */
-        if (!found && new_addr) {
-                sctp_sf_send_restart_abort(&new_addr->ipaddr, init, commands);
+                }
         }
 
         /* Return success if all addresses were found. */
-        return found;
+        return ret;
 }
 
 /* Populate the verification/tie tags based on overlapping INIT
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 36cb66022a27..e9eaaf7d43c1 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -38,7 +38,7 @@ static const struct rpc_authops *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
 static LIST_HEAD(cred_unused);
 static unsigned long number_cred_unused;
 
-#define MAX_HASHTABLE_BITS (10) 
+#define MAX_HASHTABLE_BITS (14)
 static int param_set_hashtbl_sz(const char *val, const struct kernel_param *kp)
 {
         unsigned long num;
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index dcfc66bab2bb..12c485982814 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -745,17 +745,18 @@ gss_pipe_release(struct inode *inode)
         struct rpc_inode *rpci = RPC_I(inode);
         struct gss_upcall_msg *gss_msg;
 
+restart:
         spin_lock(&inode->i_lock);
-        while (!list_empty(&rpci->in_downcall)) {
+        list_for_each_entry(gss_msg, &rpci->in_downcall, list) {
 
-                gss_msg = list_entry(rpci->in_downcall.next,
-                                struct gss_upcall_msg, list);
+                if (!list_empty(&gss_msg->msg.list))
+                        continue;
                 gss_msg->msg.errno = -EPIPE;
                 atomic_inc(&gss_msg->count);
                 __gss_unhash_msg(gss_msg);
                 spin_unlock(&inode->i_lock);
                 gss_release_msg(gss_msg);
-                spin_lock(&inode->i_lock);
+                goto restart;
         }
         spin_unlock(&inode->i_lock);
 
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 032644610524..778e5dfc5144 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -237,6 +237,7 @@ get_key(const void *p, const void *end,
         if (!supported_gss_krb5_enctype(alg)) {
                 printk(KERN_WARNING "gss_kerberos_mech: unsupported "
                         "encryption key algorithm %d\n", alg);
+                p = ERR_PTR(-EINVAL);
                 goto out_err;
         }
         p = simple_get_netobj(p, end, &key);
@@ -282,15 +283,19 @@ gss_import_v1_context(const void *p, const void *end, struct krb5_ctx *ctx)
         ctx->enctype = ENCTYPE_DES_CBC_RAW;
 
         ctx->gk5e = get_gss_krb5_enctype(ctx->enctype);
-        if (ctx->gk5e == NULL)
+        if (ctx->gk5e == NULL) {
+                p = ERR_PTR(-EINVAL);
                 goto out_err;
+        }
 
         /* The downcall format was designed before we completely understood
          * the uses of the context fields; so it includes some stuff we
          * just give some minimal sanity-checking, and some we ignore
          * completely (like the next twenty bytes): */
-        if (unlikely(p + 20 > end || p + 20 < p))
+        if (unlikely(p + 20 > end || p + 20 < p)) {
+                p = ERR_PTR(-EFAULT);
                 goto out_err;
+        }
         p += 20;
         p = simple_get_bytes(p, end, &tmp, sizeof(tmp));
         if (IS_ERR(p))
@@ -619,6 +624,7 @@ gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,
         if (ctx->seq_send64 != ctx->seq_send) {
                 dprintk("%s: seq_send64 %lx, seq_send %x overflow?\n", __func__,
                         (long unsigned)ctx->seq_send64, ctx->seq_send);
+                p = ERR_PTR(-EINVAL);
                 goto out_err;
         }
         p = simple_get_bytes(p, end, &ctx->enctype, sizeof(ctx->enctype));
diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c
index dc3f1f5ed865..adade3d313f2 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_mech.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c
@@ -100,6 +100,7 @@ gss_import_sec_context_spkm3(const void *p, size_t len,
         if (version != 1) {
                 dprintk("RPC:       unknown spkm3 token format: "
                                 "obsolete nfs-utils?\n");
+                p = ERR_PTR(-EINVAL);
                 goto out_err_free_ctx;
         }
 
@@ -135,8 +136,10 @@ gss_import_sec_context_spkm3(const void *p, size_t len,
         if (IS_ERR(p))
                 goto out_err_free_intg_alg;
 
-        if (p != end)
+        if (p != end) {
+                p = ERR_PTR(-EFAULT);
                 goto out_err_free_intg_key;
+        }
 
         ctx_id->internal_ctx_id = ctx;
 
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 2388d83b68ff..fa5549079d79 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -226,7 +226,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
                         goto out_no_principal;
         }
 
-        kref_init(&clnt->cl_kref);
+        atomic_set(&clnt->cl_count, 1);
 
         err = rpc_setup_pipedir(clnt, program->pipe_dir_name);
         if (err < 0)
@@ -390,14 +390,14 @@ rpc_clone_client(struct rpc_clnt *clnt)
                 if (new->cl_principal == NULL)
                         goto out_no_principal;
         }
-        kref_init(&new->cl_kref);
+        atomic_set(&new->cl_count, 1);
         err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name);
         if (err != 0)
                 goto out_no_path;
         if (new->cl_auth)
                 atomic_inc(&new->cl_auth->au_count);
         xprt_get(clnt->cl_xprt);
-        kref_get(&clnt->cl_kref);
+        atomic_inc(&clnt->cl_count);
         rpc_register_client(new);
         rpciod_up();
         return new;
@@ -465,10 +465,8 @@ EXPORT_SYMBOL_GPL(rpc_shutdown_client);
  * Free an RPC client
  */
 static void
-rpc_free_client(struct kref *kref)
+rpc_free_client(struct rpc_clnt *clnt)
 {
-        struct rpc_clnt *clnt = container_of(kref, struct rpc_clnt, cl_kref);
-
         dprintk("RPC:       destroying %s client for %s\n",
                         clnt->cl_protname, clnt->cl_server);
         if (!IS_ERR(clnt->cl_path.dentry)) {
@@ -495,12 +493,10 @@ out_free:
  * Free an RPC client
  */
 static void
-rpc_free_auth(struct kref *kref)
+rpc_free_auth(struct rpc_clnt *clnt)
 {
-        struct rpc_clnt *clnt = container_of(kref, struct rpc_clnt, cl_kref);
-
         if (clnt->cl_auth == NULL) {
-                rpc_free_client(kref);
+                rpc_free_client(clnt);
                 return;
         }
 
@@ -509,10 +505,11 @@ rpc_free_auth(struct kref *kref)
          *       release remaining GSS contexts. This mechanism ensures
          *       that it can do so safely.
          */
-        kref_init(kref);
+        atomic_inc(&clnt->cl_count);
         rpcauth_release(clnt->cl_auth);
         clnt->cl_auth = NULL;
-        kref_put(kref, rpc_free_client);
+        if (atomic_dec_and_test(&clnt->cl_count))
+                rpc_free_client(clnt);
 }
 
 /*
@@ -525,7 +522,8 @@ rpc_release_client(struct rpc_clnt *clnt)
 
         if (list_empty(&clnt->cl_tasks))
                 wake_up(&destroy_wait);
-        kref_put(&clnt->cl_kref, rpc_free_auth);
+        if (atomic_dec_and_test(&clnt->cl_count))
+                rpc_free_auth(clnt);
 }
 
 /**
@@ -588,7 +586,7 @@ void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
         if (clnt != NULL) {
                 rpc_task_release_client(task);
                 task->tk_client = clnt;
-                kref_get(&clnt->cl_kref);
+                atomic_inc(&clnt->cl_count);
                 if (clnt->cl_softrtry)
                         task->tk_flags |= RPC_TASK_SOFT;
                 /* Add to the client's list of all tasks */
@@ -931,7 +929,7 @@ call_reserveresult(struct rpc_task *task)
         task->tk_status = 0;
         if (status >= 0) {
                 if (task->tk_rqstp) {
-                        task->tk_action = call_allocate;
+                        task->tk_action = call_refresh;
                         return;
                 }
 
@@ -966,13 +964,54 @@ call_reserveresult(struct rpc_task *task)
 }
 
 /*
- * 2.   Allocate the buffer. For details, see sched.c:rpc_malloc.
+ * 2.   Bind and/or refresh the credentials
+ */
+static void
+call_refresh(struct rpc_task *task)
+{
+        dprint_status(task);
+
+        task->tk_action = call_refreshresult;
+        task->tk_status = 0;
+        task->tk_client->cl_stats->rpcauthrefresh++;
+        rpcauth_refreshcred(task);
+}
+
+/*
+ * 2a.  Process the results of a credential refresh
+ */
+static void
+call_refreshresult(struct rpc_task *task)
+{
+        int status = task->tk_status;
+
+        dprint_status(task);
+
+        task->tk_status = 0;
+        task->tk_action = call_allocate;
+        if (status >= 0 && rpcauth_uptodatecred(task))
+                return;
+        switch (status) {
+        case -EACCES:
+                rpc_exit(task, -EACCES);
+                return;
+        case -ENOMEM:
+                rpc_exit(task, -ENOMEM);
+                return;
+        case -ETIMEDOUT:
+                rpc_delay(task, 3*HZ);
+        }
+        task->tk_action = call_refresh;
+}
+
+/*
+ * 2b.  Allocate the buffer. For details, see sched.c:rpc_malloc.
  *      (Note: buffer memory is freed in xprt_release).
  */
 static void
 call_allocate(struct rpc_task *task)
 {
-        unsigned int slack = task->tk_client->cl_auth->au_cslack;
+        unsigned int slack = task->tk_rqstp->rq_cred->cr_auth->au_cslack;
         struct rpc_rqst *req = task->tk_rqstp;
         struct rpc_xprt *xprt = task->tk_xprt;
         struct rpc_procinfo *proc = task->tk_msg.rpc_proc;
@@ -980,7 +1019,7 @@ call_allocate(struct rpc_task *task)
         dprint_status(task);
 
         task->tk_status = 0;
-        task->tk_action = call_refresh;
+        task->tk_action = call_bind;
 
         if (req->rq_buffer)
                 return;
@@ -1017,47 +1056,6 @@ call_allocate(struct rpc_task *task)
         rpc_exit(task, -ERESTARTSYS);
 }
 
-/*
- * 2a.  Bind and/or refresh the credentials
- */
-static void
-call_refresh(struct rpc_task *task)
-{
-        dprint_status(task);
-
-        task->tk_action = call_refreshresult;
-        task->tk_status = 0;
-        task->tk_client->cl_stats->rpcauthrefresh++;
-        rpcauth_refreshcred(task);
-}
-
-/*
- * 2b.  Process the results of a credential refresh
- */
-static void
-call_refreshresult(struct rpc_task *task)
-{
-        int status = task->tk_status;
-
-        dprint_status(task);
-
-        task->tk_status = 0;
-        task->tk_action = call_bind;
-        if (status >= 0 && rpcauth_uptodatecred(task))
-                return;
-        switch (status) {
-        case -EACCES:
-                rpc_exit(task, -EACCES);
-                return;
-        case -ENOMEM:
-                rpc_exit(task, -ENOMEM);
-                return;
-        case -ETIMEDOUT:
-                rpc_delay(task, 3*HZ);
-        }
-        task->tk_action = call_refresh;
-}
-
 static inline int
 rpc_task_need_encode(struct rpc_task *task)
 {
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 95ccbcf45d3e..8c8eef2b8f26 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -48,7 +48,7 @@ static void rpc_purge_list(struct rpc_inode *rpci, struct list_head *head,
                 return;
         do {
                 msg = list_entry(head->next, struct rpc_pipe_msg, list);
-                list_del(&msg->list);
+                list_del_init(&msg->list);
                 msg->errno = err;
                 destroy_msg(msg);
         } while (!list_empty(head));
@@ -208,7 +208,7 @@ rpc_pipe_release(struct inode *inode, struct file *filp)
         if (msg != NULL) {
                 spin_lock(&inode->i_lock);
                 msg->errno = -EAGAIN;
-                list_del(&msg->list);
+                list_del_init(&msg->list);
                 spin_unlock(&inode->i_lock);
                 rpci->ops->destroy_msg(msg);
         }
@@ -268,7 +268,7 @@ rpc_pipe_read(struct file *filp, char __user *buf, size_t len, loff_t *offset)
         if (res < 0 || msg->len == msg->copied) {
                 filp->private_data = NULL;
                 spin_lock(&inode->i_lock);
-                list_del(&msg->list);
+                list_del_init(&msg->list);
                 spin_unlock(&inode->i_lock);
                 rpci->ops->destroy_msg(msg);
         }
@@ -371,21 +371,23 @@ rpc_show_info(struct seq_file *m, void *v)
 static int
 rpc_info_open(struct inode *inode, struct file *file)
 {
-        struct rpc_clnt *clnt;
+        struct rpc_clnt *clnt = NULL;
         int ret = single_open(file, rpc_show_info, NULL);
 
         if (!ret) {
                 struct seq_file *m = file->private_data;
-                mutex_lock(&inode->i_mutex);
-                clnt = RPC_I(inode)->private;
-                if (clnt) {
-                        kref_get(&clnt->cl_kref);
+
+                spin_lock(&file->f_path.dentry->d_lock);
+                if (!d_unhashed(file->f_path.dentry))
+                        clnt = RPC_I(inode)->private;
+                if (clnt != NULL && atomic_inc_not_zero(&clnt->cl_count)) {
+                        spin_unlock(&file->f_path.dentry->d_lock);
                         m->private = clnt;
                 } else {
+                        spin_unlock(&file->f_path.dentry->d_lock);
                         single_release(inode, file);
                         ret = -EINVAL;
                 }
-                mutex_unlock(&inode->i_mutex);
         }
         return ret;
 }
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index b6309db56226..fe9306bf10cc 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -800,7 +800,7 @@ static void xs_udp_data_ready(struct sock *sk, int len)
         u32 _xid;
         __be32 *xp;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         dprintk("RPC:       xs_udp_data_ready...\n");
         if (!(xprt = xprt_from_sock(sk)))
                 goto out;
@@ -852,7 +852,7 @@ static void xs_udp_data_ready(struct sock *sk, int len)
  dropit:
         skb_free_datagram(sk, skb);
  out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 }
 
 static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
@@ -1229,7 +1229,7 @@ static void xs_tcp_data_ready(struct sock *sk, int bytes)
 
         dprintk("RPC:       xs_tcp_data_ready...\n");
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         if (!(xprt = xprt_from_sock(sk)))
                 goto out;
         if (xprt->shutdown)
@@ -1248,7 +1248,7 @@ static void xs_tcp_data_ready(struct sock *sk, int bytes)
                 read = tcp_read_sock(sk, &rd_desc, xs_tcp_data_recv);
         } while (read > 0);
 out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 }
 
 /*
@@ -1301,7 +1301,7 @@ static void xs_tcp_state_change(struct sock *sk)
 {
         struct rpc_xprt *xprt;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         if (!(xprt = xprt_from_sock(sk)))
                 goto out;
         dprintk("RPC:       xs_tcp_state_change client %p...\n", xprt);
@@ -1313,7 +1313,7 @@ static void xs_tcp_state_change(struct sock *sk)
 
         switch (sk->sk_state) {
         case TCP_ESTABLISHED:
-                spin_lock_bh(&xprt->transport_lock);
+                spin_lock(&xprt->transport_lock);
                 if (!xprt_test_and_set_connected(xprt)) {
                         struct sock_xprt *transport = container_of(xprt,
                                         struct sock_xprt, xprt);
@@ -1327,7 +1327,7 @@ static void xs_tcp_state_change(struct sock *sk)
 
                         xprt_wake_pending_tasks(xprt, -EAGAIN);
                 }
-                spin_unlock_bh(&xprt->transport_lock);
+                spin_unlock(&xprt->transport_lock);
                 break;
         case TCP_FIN_WAIT1:
                 /* The client initiated a shutdown of the socket */
@@ -1365,7 +1365,7 @@ static void xs_tcp_state_change(struct sock *sk)
                 xs_sock_mark_closed(xprt);
         }
  out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 }
 
 /**
@@ -1376,7 +1376,7 @@ static void xs_error_report(struct sock *sk)
 {
         struct rpc_xprt *xprt;
 
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
         if (!(xprt = xprt_from_sock(sk)))
                 goto out;
         dprintk("RPC:       %s client %p...\n"
@@ -1384,7 +1384,7 @@ static void xs_error_report(struct sock *sk)
                         __func__, xprt, sk->sk_err);
         xprt_wake_pending_tasks(xprt, -EAGAIN);
 out:
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 }
 
 static void xs_write_space(struct sock *sk)
@@ -1416,13 +1416,13 @@ static void xs_write_space(struct sock *sk)
  */
 static void xs_udp_write_space(struct sock *sk)
 {
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
 
         /* from net/core/sock.c:sock_def_write_space */
         if (sock_writeable(sk))
                 xs_write_space(sk);
 
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 }
 
 /**
@@ -1437,13 +1437,13 @@ static void xs_udp_write_space(struct sock *sk)
  */
 static void xs_tcp_write_space(struct sock *sk)
 {
-        read_lock(&sk->sk_callback_lock);
+        read_lock_bh(&sk->sk_callback_lock);
 
         /* from net/core/stream.c:sk_stream_write_space */
         if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk))
                 xs_write_space(sk);
 
-        read_unlock(&sk->sk_callback_lock);
+        read_unlock_bh(&sk->sk_callback_lock);
 }
 
 static void xs_udp_do_set_buffer_size(struct rpc_xprt *xprt)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 4414a18c63b4..0b39b2451ea5 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -692,6 +692,7 @@ static int unix_autobind(struct socket *sock)
         static u32 ordernum = 1;
         struct unix_address *addr;
         int err;
+        unsigned int retries = 0;
 
         mutex_lock(&u->readlock);
 
@@ -717,9 +718,17 @@ retry:
         if (__unix_find_socket_byname(net, addr->name, addr->len, sock->type,
                                       addr->hash)) {
                 spin_unlock(&unix_table_lock);
-                /* Sanity yield. It is unusual case, but yet... */
-                if (!(ordernum&0xFF))
-                        yield();
+                /*
+                 * __unix_find_socket_byname() may take long time if many names
+                 * are already in use.
+                 */
+                cond_resched();
+                /* Give up if all names seems to be in use. */
+                if (retries++ == 0xFFFFF) {
+                        err = -ENOSPC;
+                        kfree(addr);
+                        goto out;
+                }
                 goto retry;
         }
         addr->hash ^= sk->sk_type;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 541e2fff5e9c..d6d046b9f6f2 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -475,12 +475,10 @@ int wiphy_register(struct wiphy *wiphy)
         mutex_lock(&cfg80211_mutex);
 
         res = device_add(&rdev->wiphy.dev);
-        if (res)
-                goto out_unlock;
-
-        res = rfkill_register(rdev->rfkill);
-        if (res)
-                goto out_rm_dev;
+        if (res) {
+                mutex_unlock(&cfg80211_mutex);
+                return res;
+        }
 
         /* set up regulatory info */
         wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
@@ -509,13 +507,18 @@ int wiphy_register(struct wiphy *wiphy)
         cfg80211_debugfs_rdev_add(rdev);
         mutex_unlock(&cfg80211_mutex);
 
+        /*
+         * due to a locking dependency this has to be outside of the
+         * cfg80211_mutex lock
+         */
+        res = rfkill_register(rdev->rfkill);
+        if (res)
+                goto out_rm_dev;
+
         return 0;
 
 out_rm_dev:
         device_del(&rdev->wiphy.dev);
-
-out_unlock:
-        mutex_unlock(&cfg80211_mutex);
         return res;
 }
 EXPORT_SYMBOL(wiphy_register);
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index bb5e0a5ecfa1..7e5c3a45f811 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1420,6 +1420,9 @@ int cfg80211_wext_giwessid(struct net_device *dev,
 {
         struct wireless_dev *wdev = dev->ieee80211_ptr;
 
+        data->flags = 0;
+        data->length = 0;
+
         switch (wdev->iftype) {
         case NL80211_IFTYPE_ADHOC:
                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index 0ef17bc42bac..8f5116f5af19 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -782,6 +782,22 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
                 }
         }
 
+        if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) {
+                /*
+                 * If this is a GET, but not NOMAX, it means that the extra
+                 * data is not bounded by userspace, but by max_tokens. Thus
+                 * set the length to max_tokens. This matches the extra data
+                 * allocation.
+                 * The driver should fill it with the number of tokens it
+                 * provided, and it may check iwp->length rather than having
+                 * knowledge of max_tokens. If the driver doesn't change the
+                 * iwp->length, this ioctl just copies back max_token tokens
+                 * filled with zeroes. Hopefully the driver isn't claiming
+                 * them to be valid data.
+                 */
+                iwp->length = descr->max_tokens;
+        }
+
         err = handler(dev, info, (union iwreq_data *) iwp, extra);
 
         iwp->length += essid_compat;
diff --git a/net/wireless/wext-priv.c b/net/wireless/wext-priv.c
index 3feb28e41c53..674d426a9d24 100644
--- a/net/wireless/wext-priv.c
+++ b/net/wireless/wext-priv.c
@@ -152,7 +152,7 @@ static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd,
         } else if (!iwp->pointer)
                 return -EFAULT;
 
-        extra = kmalloc(extra_size, GFP_KERNEL);
+        extra = kzalloc(extra_size, GFP_KERNEL);
         if (!extra)
                 return -ENOMEM;
 
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index a3cca0a94346..64f2ae1fdc15 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -101,7 +101,7 @@ resume:
                         err = -EHOSTUNREACH;
                         goto error_nolock;
                 }
-                skb_dst_set_noref(skb, dst);
+                skb_dst_set(skb, dst_clone(dst));
                 x = dst->xfrm;
         } while (x && !(x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL));
 
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 2b3ed7ad4933..cbab6e1a8c9c 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1175,9 +1175,8 @@ xfrm_tmpl_resolve_one(struct xfrm_policy *policy, struct flowi *fl,
                     tmpl->mode == XFRM_MODE_BEET) {
                         remote = &tmpl->id.daddr;
                         local = &tmpl->saddr;
-                        family = tmpl->encap_family;
-                        if (xfrm_addr_any(local, family)) {
-                                error = xfrm_get_saddr(net, &tmp, remote, family);
+                        if (xfrm_addr_any(local, tmpl->encap_family)) {
+                                error = xfrm_get_saddr(net, &tmp, remote, tmpl->encap_family);
                                 if (error)
                                         goto fail;
                                 local = &tmp;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 5208b12fbfb4..eb96ce52f178 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -656,15 +656,23 @@ void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si)
 EXPORT_SYMBOL(xfrm_sad_getinfo);
 
 static int
-xfrm_init_tempsel(struct xfrm_state *x, struct flowi *fl,
-                  struct xfrm_tmpl *tmpl,
-                  xfrm_address_t *daddr, xfrm_address_t *saddr,
-                  unsigned short family)
+xfrm_init_tempstate(struct xfrm_state *x, struct flowi *fl,
+                    struct xfrm_tmpl *tmpl,
+                    xfrm_address_t *daddr, xfrm_address_t *saddr,
+                    unsigned short family)
 {
         struct xfrm_state_afinfo *afinfo = xfrm_state_get_afinfo(family);
         if (!afinfo)
                 return -1;
-        afinfo->init_tempsel(x, fl, tmpl, daddr, saddr);
+        afinfo->init_tempsel(&x->sel, fl);
+
+        if (family != tmpl->encap_family) {
+                xfrm_state_put_afinfo(afinfo);
+                afinfo = xfrm_state_get_afinfo(tmpl->encap_family);
+                if (!afinfo)
+                        return -1;
+        }
+        afinfo->init_temprop(x, tmpl, daddr, saddr);
         xfrm_state_put_afinfo(afinfo);
         return 0;
 }
@@ -790,37 +798,38 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
         int error = 0;
         struct xfrm_state *best = NULL;
         u32 mark = pol->mark.v & pol->mark.m;
+        unsigned short encap_family = tmpl->encap_family;
 
         to_put = NULL;
 
         spin_lock_bh(&xfrm_state_lock);
-        h = xfrm_dst_hash(net, daddr, saddr, tmpl->reqid, family);
+        h = xfrm_dst_hash(net, daddr, saddr, tmpl->reqid, encap_family);
         hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
-                if (x->props.family == family &&
+                if (x->props.family == encap_family &&
                     x->props.reqid == tmpl->reqid &&
                     (mark & x->mark.m) == x->mark.v &&
                     !(x->props.flags & XFRM_STATE_WILDRECV) &&
-                    xfrm_state_addr_check(x, daddr, saddr, family) &&
+                    xfrm_state_addr_check(x, daddr, saddr, encap_family) &&
                     tmpl->mode == x->props.mode &&
                     tmpl->id.proto == x->id.proto &&
                     (tmpl->id.spi == x->id.spi || !tmpl->id.spi))
-                        xfrm_state_look_at(pol, x, fl, family, daddr, saddr,
+                        xfrm_state_look_at(pol, x, fl, encap_family, daddr, saddr,
                                            &best, &acquire_in_progress, &error);
         }
         if (best)
                 goto found;
 
-        h_wildcard = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, family);
+        h_wildcard = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, encap_family);
         hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h_wildcard, bydst) {
-                if (x->props.family == family &&
+                if (x->props.family == encap_family &&
                     x->props.reqid == tmpl->reqid &&
                     (mark & x->mark.m) == x->mark.v &&
                     !(x->props.flags & XFRM_STATE_WILDRECV) &&
-                    xfrm_state_addr_check(x, daddr, saddr, family) &&
+                    xfrm_state_addr_check(x, daddr, saddr, encap_family) &&
                     tmpl->mode == x->props.mode &&
                     tmpl->id.proto == x->id.proto &&
                     (tmpl->id.spi == x->id.spi || !tmpl->id.spi))
-                        xfrm_state_look_at(pol, x, fl, family, daddr, saddr,
+                        xfrm_state_look_at(pol, x, fl, encap_family, daddr, saddr,
                                            &best, &acquire_in_progress, &error);
         }
 
@@ -829,7 +838,7 @@ found:
         if (!x && !error && !acquire_in_progress) {
                 if (tmpl->id.spi &&
                     (x0 = __xfrm_state_lookup(net, mark, daddr, tmpl->id.spi,
-                                              tmpl->id.proto, family)) != NULL) {
+                                              tmpl->id.proto, encap_family)) != NULL) {
                         to_put = x0;
                         error = -EEXIST;
                         goto out;
@@ -839,9 +848,9 @@ found:
                         error = -ENOMEM;
                         goto out;
                 }
-                /* Initialize temporary selector matching only
+                /* Initialize temporary state matching only
                  * to current session. */
-                xfrm_init_tempsel(x, fl, tmpl, daddr, saddr, family);
+                xfrm_init_tempstate(x, fl, tmpl, daddr, saddr, family);
                 memcpy(&x->mark, &pol->mark, sizeof(x->mark));
 
                 error = security_xfrm_state_alloc_acquire(x, pol->security, fl->secid);
@@ -856,10 +865,10 @@ found:
                         x->km.state = XFRM_STATE_ACQ;
                         list_add(&x->km.all, &net->xfrm.state_all);
                         hlist_add_head(&x->bydst, net->xfrm.state_bydst+h);
-                        h = xfrm_src_hash(net, daddr, saddr, family);
+                        h = xfrm_src_hash(net, daddr, saddr, encap_family);
                         hlist_add_head(&x->bysrc, net->xfrm.state_bysrc+h);
                         if (x->id.spi) {
-                                h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, family);
+                                h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, encap_family);
                                 hlist_add_head(&x->byspi, net->xfrm.state_byspi+h);
                         }
                         x->lft.hard_add_expires_seconds = net->xfrm.sysctl_acq_expires;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index b14ed4b1f27c..8bae6b22c846 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1801,7 +1801,7 @@ static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
         struct xfrm_user_expire *ue = nlmsg_data(nlh);
         struct xfrm_usersa_info *p = &ue->state;
         struct xfrm_mark m;
-        u32 mark = xfrm_mark_get(attrs, &m);;
+        u32 mark = xfrm_mark_get(attrs, &m);
 
         x = xfrm_state_lookup(net, mark, &p->id.daddr, p->id.spi, p->id.proto, p->family);
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index a1a5cf95a68d..108eeb99351d 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -212,7 +212,8 @@ ifdef CONFIG_FTRACE_MCOUNT_RECORD
 cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
         "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
         "$(if $(CONFIG_64BIT),64,32)" \
-        "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" "$(NM)" "$(RM)" "$(MV)" \
+        "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
+        "$(LD)" "$(NM)" "$(RM)" "$(MV)" \
         "$(if $(part-of-module),1,0)" "$(@)";
 endif
 
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
index 79ab973fb43a..fc3b18d844af 100644
--- a/scripts/basic/docproc.c
+++ b/scripts/basic/docproc.c
@@ -34,12 +34,14 @@
  *
  */
 
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
 #include <unistd.h>
 #include <limits.h>
+#include <errno.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 
@@ -54,6 +56,7 @@ typedef void FILEONLY(char * file);
 FILEONLY *internalfunctions;
 FILEONLY *externalfunctions;
 FILEONLY *symbolsonly;
+FILEONLY *findall;
 
 typedef void FILELINE(char * file, char * line);
 FILELINE * singlefunctions;
@@ -65,12 +68,30 @@ FILELINE * docsection;
 #define KERNELDOCPATH "scripts/"
 #define KERNELDOC     "kernel-doc"
 #define DOCBOOK       "-docbook"
+#define LIST          "-list"
 #define FUNCTION      "-function"
 #define NOFUNCTION    "-nofunction"
 #define NODOCSECTIONS "-no-doc-sections"
 
 static char *srctree, *kernsrctree;
 
+static char **all_list = NULL;
+static int all_list_len = 0;
+
+static void consume_symbol(const char *sym)
+{
+        int i;
+
+        for (i = 0; i < all_list_len; i++) {
+                if (!all_list[i])
+                        continue;
+                if (strcmp(sym, all_list[i]))
+                        continue;
+                all_list[i] = NULL;
+                break;
+        }
+}
+
 static void usage (void)
 {
         fprintf(stderr, "Usage: docproc {doc|depend} file\n");
@@ -248,6 +269,7 @@ static void docfunctions(char * filename, char * type)
                 struct symfile * sym = &symfilelist[i];
                 for (j=0; j < sym->symbolcnt; j++) {
                         vec[idx++]     = type;
+                        consume_symbol(sym->symbollist[j].name);
                         vec[idx++] = sym->symbollist[j].name;
                 }
         }
@@ -287,6 +309,11 @@ static void singfunc(char * filename, char * line)
                         vec[idx++] = &line[i];
                 }
         }
+        for (i = 0; i < idx; i++) {
+                if (strcmp(vec[i], FUNCTION))
+                        continue;
+                consume_symbol(vec[i + 1]);
+        }
         vec[idx++] = filename;
         vec[idx] = NULL;
         exec_kernel_doc(vec);
@@ -306,6 +333,10 @@ static void docsect(char *filename, char *line)
                 if (*s == '\n')
                         *s = '\0';
 
+        asprintf(&s, "DOC: %s", line);
+        consume_symbol(s);
+        free(s);
+
         vec[0] = KERNELDOC;
         vec[1] = DOCBOOK;
         vec[2] = FUNCTION;
@@ -315,6 +346,84 @@ static void docsect(char *filename, char *line)
         exec_kernel_doc(vec);
 }
 
+static void find_all_symbols(char *filename)
+{
+        char *vec[4]; /* kerneldoc -list file NULL */
+        pid_t pid;
+        int ret, i, count, start;
+        char real_filename[PATH_MAX + 1];
+        int pipefd[2];
+        char *data, *str;
+        size_t data_len = 0;
+
+        vec[0] = KERNELDOC;
+        vec[1] = LIST;
+        vec[2] = filename;
+        vec[3] = NULL;
+
+        if (pipe(pipefd)) {
+                perror("pipe");
+                exit(1);
+        }
+
+        switch (pid=fork()) {
+                case -1:
+                        perror("fork");
+                        exit(1);
+                case  0:
+                        close(pipefd[0]);
+                        dup2(pipefd[1], 1);
+                        memset(real_filename, 0, sizeof(real_filename));
+                        strncat(real_filename, kernsrctree, PATH_MAX);
+                        strncat(real_filename, "/" KERNELDOCPATH KERNELDOC,
+                                        PATH_MAX - strlen(real_filename));
+                        execvp(real_filename, vec);
+                        fprintf(stderr, "exec ");
+                        perror(real_filename);
+                        exit(1);
+                default:
+                        close(pipefd[1]);
+                        data = malloc(4096);
+                        do {
+                                while ((ret = read(pipefd[0],
+                                                   data + data_len,
+                                                   4096)) > 0) {
+                                        data_len += ret;
+                                        data = realloc(data, data_len + 4096);
+                                }
+                        } while (ret == -EAGAIN);
+                        if (ret != 0) {
+                                perror("read");
+                                exit(1);
+                        }
+                        waitpid(pid, &ret ,0);
+        }
+        if (WIFEXITED(ret))
+                exitstatus |= WEXITSTATUS(ret);
+        else
+                exitstatus = 0xff;
+
+        count = 0;
+        /* poor man's strtok, but with counting */
+        for (i = 0; i < data_len; i++) {
+                if (data[i] == '\n') {
+                        count++;
+                        data[i] = '\0';
+                }
+        }
+        start = all_list_len;
+        all_list_len += count;
+        all_list = realloc(all_list, sizeof(char *) * all_list_len);
+        str = data;
+        for (i = 0; i < data_len && start != all_list_len; i++) {
+                if (data[i] == '\0') {
+                        all_list[start] = str;
+                        str = data + i + 1;
+                        start++;
+                }
+        }
+}
+
 /*
  * Parse file, calling action specific functions for:
  * 1) Lines containing !E
@@ -322,7 +431,8 @@ static void docsect(char *filename, char *line)
  * 3) Lines containing !D
  * 4) Lines containing !F
  * 5) Lines containing !P
- * 6) Default lines - lines not matching the above
+ * 6) Lines containing !C
+ * 7) Default lines - lines not matching the above
  */
 static void parse_file(FILE *infile)
 {
@@ -365,6 +475,12 @@ static void parse_file(FILE *infile)
                                                 s++;
                                         docsection(line + 2, s);
                                         break;
+                                case 'C':
+                                        while (*s && !isspace(*s)) s++;
+                                        *s = '\0';
+                                        if (findall)
+                                                findall(line+2);
+                                        break;
                                 default:
                                         defaultline(line);
                         }
@@ -380,6 +496,7 @@ static void parse_file(FILE *infile)
 int main(int argc, char *argv[])
 {
         FILE * infile;
+        int i;
 
         srctree = getenv("SRCTREE");
         if (!srctree)
@@ -415,6 +532,7 @@ int main(int argc, char *argv[])
                 symbolsonly       = find_export_symbols;
                 singlefunctions   = noaction2;
                 docsection        = noaction2;
+                findall           = find_all_symbols;
                 parse_file(infile);
 
                 /* Rewind to start from beginning of file again */
@@ -425,8 +543,16 @@ int main(int argc, char *argv[])
                 symbolsonly       = printline;
                 singlefunctions   = singfunc;
                 docsection        = docsect;
+                findall           = NULL;
 
                 parse_file(infile);
+
+                for (i = 0; i < all_list_len; i++) {
+                        if (!all_list[i])
+                                continue;
+                        fprintf(stderr, "Warning: didn't use docs for %s\n",
+                                all_list[i]);
+                }
         }
         else if (strcmp("depend", argv[1]) == 0)
         {
@@ -439,6 +565,7 @@ int main(int argc, char *argv[])
                 symbolsonly       = adddep;
                 singlefunctions   = adddep2;
                 docsection        = adddep2;
+                findall           = adddep;
                 parse_file(infile);
                 printf("\n");
         }
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 102e1235fd5c..cdb6dc1f6458 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -44,12 +44,13 @@ use strict;
 # Note: This only supports 'c'.
 
 # usage:
-# kernel-doc [ -docbook | -html | -text | -man ] [ -no-doc-sections ]
+# kernel-doc [ -docbook | -html | -text | -man | -list ] [ -no-doc-sections ]
 #           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
 # or
 #           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
 #
 #  Set output format using one of -docbook -html -text or -man.  Default is man.
+#  The -list format is for internal use by docproc.
 #
 #  -no-doc-sections
 #       Do not output DOC: sections
@@ -210,9 +211,16 @@ my %highlights_text = ( $type_constant, "\$1",
                         $type_param, "\$1" );
 my $blankline_text = "";
 
+# list mode
+my %highlights_list = ( $type_constant, "\$1",
+                        $type_func, "\$1",
+                        $type_struct, "\$1",
+                        $type_param, "\$1" );
+my $blankline_list = "";
 
 sub usage {
-    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ] [ -no-doc-sections ]\n";
+    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man | -list ]\n";
+    print "         [ -no-doc-sections ]\n";
     print "         [ -function funcname [ -function funcname ...] ]\n";
     print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
     print "         c source file(s) > outputfile\n";
@@ -318,6 +326,10 @@ while ($ARGV[0] =~ m/^-(.*)/) {
         $output_mode = "xml";
         %highlights = %highlights_xml;
         $blankline = $blankline_xml;
+    } elsif ($cmd eq "-list") {
+        $output_mode = "list";
+        %highlights = %highlights_list;
+        $blankline = $blankline_list;
     } elsif ($cmd eq "-gnome") {
         $output_mode = "gnome";
         %highlights = %highlights_gnome;
@@ -1361,6 +1373,42 @@ sub output_blockhead_text(%) {
     }
 }
 
+## list mode output functions
+
+sub output_function_list(%) {
+    my %args = %{$_[0]};
+
+    print $args{'function'} . "\n";
+}
+
+# output enum in list
+sub output_enum_list(%) {
+    my %args = %{$_[0]};
+    print $args{'enum'} . "\n";
+}
+
+# output typedef in list
+sub output_typedef_list(%) {
+    my %args = %{$_[0]};
+    print $args{'typedef'} . "\n";
+}
+
+# output struct as list
+sub output_struct_list(%) {
+    my %args = %{$_[0]};
+
+    print $args{'struct'} . "\n";
+}
+
+sub output_blockhead_list(%) {
+    my %args = %{$_[0]};
+    my ($parameter, $section);
+
+    foreach $section (@{$args{'sectionlist'}}) {
+        print "DOC: $section\n";
+    }
+}
+
 ##
 # generic output function for all types (function, struct/union, typedef, enum);
 # calls the generated, variable output_ function name based on
@@ -1679,7 +1727,7 @@ sub check_sections($$$$$$) {
                 foreach $px (0 .. $#prms) {
                         $prm_clean = $prms[$px];
                         $prm_clean =~ s/\[.*\]//;
-                        $prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//;
+                        $prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
                         # ignore array size in a parameter string;
                         # however, the original param string may contain
                         # spaces, e.g.:  addr[6 + 2]
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index e67f05486087..1d7963f4ee79 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -270,6 +270,8 @@ if ($arch eq "x86_64") {
 } elsif ($arch eq "arm") {
     $alignment = 2;
     $section_type = '%progbits';
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_ARM_(CALL|PC24|THM_CALL)" .
+                        "\\s+(__gnu_mcount_nc|mcount)\$";
 
 } elsif ($arch eq "ia64") {
     $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s_mcount\$";
diff --git a/security/apparmor/include/resource.h b/security/apparmor/include/resource.h
index 3c88be946494..02baec732bb5 100644
--- a/security/apparmor/include/resource.h
+++ b/security/apparmor/include/resource.h
@@ -33,8 +33,8 @@ struct aa_rlimit {
 };
 
 int aa_map_resource(int resource);
-int aa_task_setrlimit(struct aa_profile *profile, unsigned int resource,
-                      struct rlimit *new_rlim);
+int aa_task_setrlimit(struct aa_profile *profile, struct task_struct *,
+                      unsigned int resource, struct rlimit *new_rlim);
 
 void __aa_transition_rlimits(struct aa_profile *old, struct aa_profile *new);
 
diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 6e85cdb4303f..506d2baf6147 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -40,6 +40,7 @@ char *aa_split_fqname(char *fqname, char **ns_name)
         *ns_name = NULL;
         if (name[0] == ':') {
                 char *split = strchr(&name[1], ':');
+                *ns_name = skip_spaces(&name[1]);
                 if (split) {
                         /* overwrite ':' with \0 */
                         *split = 0;
@@ -47,7 +48,6 @@ char *aa_split_fqname(char *fqname, char **ns_name)
                 } else
                         /* a ns name without a following profile is allowed */
                         name = NULL;
-                *ns_name = &name[1];
         }
         if (name && *name == 0)
                 name = NULL;
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index f73e2c204218..cf1de4462ccd 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -614,7 +614,7 @@ static int apparmor_task_setrlimit(struct task_struct *task,
         int error = 0;
 
         if (!unconfined(profile))
-                error = aa_task_setrlimit(profile, resource, new_rlim);
+                error = aa_task_setrlimit(profile, task, resource, new_rlim);
 
         return error;
 }
diff --git a/security/apparmor/path.c b/security/apparmor/path.c
index 19358dc14605..82396050f186 100644
--- a/security/apparmor/path.c
+++ b/security/apparmor/path.c
@@ -59,8 +59,7 @@ static int d_namespace_path(struct path *path, char *buf, int buflen,
 {
         struct path root, tmp;
         char *res;
-        int deleted, connected;
-        int error = 0;
+        int connected, error = 0;
 
         /* Get the root we want to resolve too, released below */
         if (flags & PATH_CHROOT_REL) {
@@ -74,19 +73,8 @@ static int d_namespace_path(struct path *path, char *buf, int buflen,
         }
 
         spin_lock(&dcache_lock);
-        /* There is a race window between path lookup here and the
-         * need to strip the " (deleted) string that __d_path applies
-         * Detect the race and relookup the path
-         *
-         * The stripping of (deleted) is a hack that could be removed
-         * with an updated __d_path
-         */
-        do {
-                tmp = root;
-                deleted = d_unlinked(path->dentry);
-                res = __d_path(path, &tmp, buf, buflen);
-
-        } while (deleted != d_unlinked(path->dentry));
+        tmp = root;
+        res = __d_path(path, &tmp, buf, buflen);
         spin_unlock(&dcache_lock);
 
         *name = res;
@@ -98,21 +86,17 @@ static int d_namespace_path(struct path *path, char *buf, int buflen,
                 *name = buf;
                 goto out;
         }
-        if (deleted) {
-                /* On some filesystems, newly allocated dentries appear to the
-                 * security_path hooks as a deleted dentry except without an
-                 * inode allocated.
-                 *
-                 * Remove the appended deleted text and return as string for
-                 * normal mediation, or auditing.  The (deleted) string is
-                 * guaranteed to be added in this case, so just strip it.
-                 */
-                buf[buflen - 11] = 0;   /* - (len(" (deleted)") +\0) */
 
-                if (path->dentry->d_inode && !(flags & PATH_MEDIATE_DELETED)) {
+        /* Handle two cases:
+         * 1. A deleted dentry && profile is not allowing mediation of deleted
+         * 2. On some filesystems, newly allocated dentries appear to the
+         *    security_path hooks as a deleted dentry except without an inode
+         *    allocated.
+         */
+        if (d_unlinked(path->dentry) && path->dentry->d_inode &&
+            !(flags & PATH_MEDIATE_DELETED)) {
                         error = -ENOENT;
                         goto out;
-                }
         }
 
         /* Determine if the path is connected to the expected root */
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index 3cdc1ad0787e..52cc865f1464 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -1151,12 +1151,14 @@ ssize_t aa_remove_profiles(char *fqname, size_t size)
                 /* released below */
                 ns = aa_get_namespace(root);
 
-        write_lock(&ns->lock);
         if (!name) {
                 /* remove namespace - can only happen if fqname[0] == ':' */
+                write_lock(&ns->parent->lock);
                 __remove_namespace(ns);
+                write_unlock(&ns->parent->lock);
         } else {
                 /* remove profile */
+                write_lock(&ns->lock);
                 profile = aa_get_profile(__lookup_profile(&ns->base, name));
                 if (!profile) {
                         error = -ENOENT;
@@ -1165,8 +1167,8 @@ ssize_t aa_remove_profiles(char *fqname, size_t size)
                 }
                 name = profile->base.hname;
                 __remove_profile(profile);
+                write_unlock(&ns->lock);
         }
-        write_unlock(&ns->lock);
 
         /* don't fail removal if audit fails */
         (void) audit_policy(OP_PROF_RM, GFP_KERNEL, name, info, error);
diff --git a/security/apparmor/resource.c b/security/apparmor/resource.c
index 4a368f1fd36d..a4136c10b1c6 100644
--- a/security/apparmor/resource.c
+++ b/security/apparmor/resource.c
@@ -72,6 +72,7 @@ int aa_map_resource(int resource)
 /**
  * aa_task_setrlimit - test permission to set an rlimit
  * @profile - profile confining the task  (NOT NULL)
+ * @task - task the resource is being set on
  * @resource - the resource being set
  * @new_rlim - the new resource limit  (NOT NULL)
  *
@@ -79,18 +80,21 @@ int aa_map_resource(int resource)
  *
  * Returns: 0 or error code if setting resource failed
  */
-int aa_task_setrlimit(struct aa_profile *profile, unsigned int resource,
-                      struct rlimit *new_rlim)
+int aa_task_setrlimit(struct aa_profile *profile, struct task_struct *task,
+                      unsigned int resource, struct rlimit *new_rlim)
 {
         int error = 0;
 
-        if (profile->rlimits.mask & (1 << resource) &&
-            new_rlim->rlim_max > profile->rlimits.limits[resource].rlim_max)
-
-                error = audit_resource(profile, resource, new_rlim->rlim_max,
-                        -EACCES);
+        /* TODO: extend resource control to handle other (non current)
+         * processes.  AppArmor rules currently have the implicit assumption
+         * that the task is setting the resource of the current process
+         */
+        if ((task != current->group_leader) ||
+            (profile->rlimits.mask & (1 << resource) &&
+             new_rlim->rlim_max > profile->rlimits.limits[resource].rlim_max))
+                error = -EACCES;
 
-        return error;
+        return audit_resource(profile, resource, new_rlim->rlim_max, error);
 }
 
 /**
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 16d100d3fc38..3fbcd1dda0ef 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -35,6 +35,7 @@ enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
 #define IMA_MEASURE_HTABLE_SIZE (1 << IMA_HASH_BITS)
 
 /* set during initialization */
+extern int iint_initialized;
 extern int ima_initialized;
 extern int ima_used_chip;
 extern char *ima_hash;
diff --git a/security/integrity/ima/ima_iint.c b/security/integrity/ima/ima_iint.c
index 7625b85c2274..afba4aef812f 100644
--- a/security/integrity/ima/ima_iint.c
+++ b/security/integrity/ima/ima_iint.c
@@ -22,9 +22,10 @@
 
 RADIX_TREE(ima_iint_store, GFP_ATOMIC);
 DEFINE_SPINLOCK(ima_iint_lock);
-
 static struct kmem_cache *iint_cache __read_mostly;
 
+int iint_initialized = 0;
+
 /* ima_iint_find_get - return the iint associated with an inode
  *
  * ima_iint_find_get gets a reference to the iint. Caller must
@@ -141,6 +142,7 @@ static int __init ima_iintcache_init(void)
         iint_cache =
             kmem_cache_create("iint_cache", sizeof(struct ima_iint_cache), 0,
                               SLAB_PANIC, init_once);
+        iint_initialized = 1;
         return 0;
 }
 security_initcall(ima_iintcache_init);
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index f93641382e9f..e662b89d4079 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -148,12 +148,14 @@ void ima_counts_get(struct file *file)
         struct ima_iint_cache *iint;
         int rc;
 
-        if (!ima_initialized || !S_ISREG(inode->i_mode))
+        if (!iint_initialized || !S_ISREG(inode->i_mode))
                 return;
         iint = ima_iint_find_get(inode);
         if (!iint)
                 return;
         mutex_lock(&iint->mutex);
+        if (!ima_initialized)
+                goto out;
         rc = ima_must_measure(iint, inode, MAY_READ, FILE_CHECK);
         if (rc < 0)
                 goto out;
@@ -213,7 +215,7 @@ void ima_file_free(struct file *file)
         struct inode *inode = file->f_dentry->d_inode;
         struct ima_iint_cache *iint;
 
-        if (!ima_initialized || !S_ISREG(inode->i_mode))
+        if (!iint_initialized || !S_ISREG(inode->i_mode))
                 return;
         iint = ima_iint_find_get(inode);
         if (!iint)
@@ -230,7 +232,7 @@ static int process_measurement(struct file *file, const unsigned char *filename,
 {
         struct inode *inode = file->f_dentry->d_inode;
         struct ima_iint_cache *iint;
-        int rc;
+        int rc = 0;
 
         if (!ima_initialized || !S_ISREG(inode->i_mode))
                 return 0;
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index b2b0998d6abd..60924f6a52db 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1272,6 +1272,7 @@ long keyctl_session_to_parent(void)
         keyring_r = NULL;
 
         me = current;
+        rcu_read_lock();
         write_lock_irq(&tasklist_lock);
 
         parent = me->real_parent;
@@ -1304,7 +1305,8 @@ long keyctl_session_to_parent(void)
                 goto not_permitted;
 
         /* the keyrings must have the same UID */
-        if (pcred->tgcred->session_keyring->uid != mycred->euid ||
+        if ((pcred->tgcred->session_keyring &&
+             pcred->tgcred->session_keyring->uid != mycred->euid) ||
             mycred->tgcred->session_keyring->uid != mycred->euid)
                 goto not_permitted;
 
@@ -1319,6 +1321,7 @@ long keyctl_session_to_parent(void)
         set_ti_thread_flag(task_thread_info(parent), TIF_NOTIFY_RESUME);
 
         write_unlock_irq(&tasklist_lock);
+        rcu_read_unlock();
         if (oldcred)
                 put_cred(oldcred);
         return 0;
@@ -1327,6 +1330,7 @@ already_same:
         ret = 0;
 not_permitted:
         write_unlock_irq(&tasklist_lock);
+        rcu_read_unlock();
         put_cred(cred);
         return ret;
 
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index ef43995119a4..c668b447c725 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -1416,15 +1416,19 @@ static char *tomoyo_print_header(struct tomoyo_request_info *r)
         const pid_t gpid = task_pid_nr(current);
         static const int tomoyo_buffer_len = 4096;
         char *buffer = kmalloc(tomoyo_buffer_len, GFP_NOFS);
+        pid_t ppid;
         if (!buffer)
                 return NULL;
         do_gettimeofday(&tv);
+        rcu_read_lock();
+        ppid = task_tgid_vnr(current->real_parent);
+        rcu_read_unlock();
         snprintf(buffer, tomoyo_buffer_len - 1,
                  "#timestamp=%lu profile=%u mode=%s (global-pid=%u)"
                  " task={ pid=%u ppid=%u uid=%u gid=%u euid=%u"
                  " egid=%u suid=%u sgid=%u fsuid=%u fsgid=%u }",
                  tv.tv_sec, r->profile, tomoyo_mode[r->mode], gpid,
-                 (pid_t) sys_getpid(), (pid_t) sys_getppid(),
+                 task_tgid_vnr(current), ppid,
                  current_uid(), current_gid(), current_euid(),
                  current_egid(), current_suid(), current_sgid(),
                  current_fsuid(), current_fsgid());
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index 04454cb7b24a..7c66bd898782 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -689,9 +689,6 @@ struct tomoyo_profile {
 
 /********** Function prototypes. **********/
 
-extern asmlinkage long sys_getpid(void);
-extern asmlinkage long sys_getppid(void);
-
 /* Check whether the given string starts with the given keyword. */
 bool tomoyo_str_starts(char **src, const char *find);
 /* Get tomoyo_realpath() of current process. */
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 204af48c5cc1..ac242a377aea 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -372,14 +372,17 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
                                                   struct snd_info_buffer *buffer)
 {
         struct snd_pcm_substream *substream = entry->private_data;
-        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct snd_pcm_runtime *runtime;
+
+        mutex_lock(&substream->pcm->open_mutex);
+        runtime = substream->runtime;
         if (!runtime) {
                 snd_iprintf(buffer, "closed\n");
-                return;
+                goto unlock;
         }
         if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
                 snd_iprintf(buffer, "no setup\n");
-                return;
+                goto unlock;
         }
         snd_iprintf(buffer, "access: %s\n", snd_pcm_access_name(runtime->access));
         snd_iprintf(buffer, "format: %s\n", snd_pcm_format_name(runtime->format));
@@ -398,20 +401,25 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
                 snd_iprintf(buffer, "OSS period frames: %lu\n", (unsigned long)runtime->oss.period_frames);
         }
 #endif
+ unlock:
+        mutex_unlock(&substream->pcm->open_mutex);
 }
 
 static void snd_pcm_substream_proc_sw_params_read(struct snd_info_entry *entry,
                                                   struct snd_info_buffer *buffer)
 {
         struct snd_pcm_substream *substream = entry->private_data;
-        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct snd_pcm_runtime *runtime;
+
+        mutex_lock(&substream->pcm->open_mutex);
+        runtime = substream->runtime;
         if (!runtime) {
                 snd_iprintf(buffer, "closed\n");
-                return;
+                goto unlock;
         }
         if (runtime->status->state == SNDRV_PCM_STATE_OPEN) {
                 snd_iprintf(buffer, "no setup\n");
-                return;
+                goto unlock;
         }
         snd_iprintf(buffer, "tstamp_mode: %s\n", snd_pcm_tstamp_mode_name(runtime->tstamp_mode));
         snd_iprintf(buffer, "period_step: %u\n", runtime->period_step);
@@ -421,24 +429,29 @@ static void snd_pcm_substream_proc_sw_params_read(struct snd_info_entry *entry,
         snd_iprintf(buffer, "silence_threshold: %lu\n", runtime->silence_threshold);
         snd_iprintf(buffer, "silence_size: %lu\n", runtime->silence_size);
         snd_iprintf(buffer, "boundary: %lu\n", runtime->boundary);
+ unlock:
+        mutex_unlock(&substream->pcm->open_mutex);
 }
 
 static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry,
                                                struct snd_info_buffer *buffer)
 {
         struct snd_pcm_substream *substream = entry->private_data;
-        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct snd_pcm_runtime *runtime;
         struct snd_pcm_status status;
         int err;
+
+        mutex_lock(&substream->pcm->open_mutex);
+        runtime = substream->runtime;
         if (!runtime) {
                 snd_iprintf(buffer, "closed\n");
-                return;
+                goto unlock;
         }
         memset(&status, 0, sizeof(status));
         err = snd_pcm_status(substream, &status);
         if (err < 0) {
                 snd_iprintf(buffer, "error %d\n", err);
-                return;
+                goto unlock;
         }
         snd_iprintf(buffer, "state: %s\n", snd_pcm_state_name(status.state));
         snd_iprintf(buffer, "owner_pid   : %d\n", pid_vnr(substream->pid));
@@ -452,6 +465,8 @@ static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry,
         snd_iprintf(buffer, "-----\n");
         snd_iprintf(buffer, "hw_ptr      : %ld\n", runtime->status->hw_ptr);
         snd_iprintf(buffer, "appl_ptr    : %ld\n", runtime->control->appl_ptr);
+ unlock:
+        mutex_unlock(&substream->pcm->open_mutex);
 }
 
 #ifdef CONFIG_SND_PCM_XRUN_DEBUG
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 134fc6c2e08d..d4eb2ef80784 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1992,6 +1992,8 @@ void snd_pcm_release_substream(struct snd_pcm_substream *substream)
                 substream->ops->close(substream);
                 substream->hw_opened = 0;
         }
+        if (pm_qos_request_active(&substream->latency_pm_qos_req))
+                pm_qos_remove_request(&substream->latency_pm_qos_req);
         if (substream->pcm_release) {
                 substream->pcm_release(substream);
                 substream->pcm_release = NULL;
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index eb68326c37d4..a7868ad4d530 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -829,6 +829,8 @@ static int snd_rawmidi_control_ioctl(struct snd_card *card,
                 
                 if (get_user(device, (int __user *)argp))
                         return -EFAULT;
+                if (device >= SNDRV_RAWMIDI_DEVICES) /* next device is -1 */
+                        device = SNDRV_RAWMIDI_DEVICES - 1;
                 mutex_lock(&register_mutex);
                 device = device < 0 ? 0 : device + 1;
                 while (device < SNDRV_RAWMIDI_DEVICES) {
diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index 685712276ac9..69cd7b3c362d 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -281,13 +281,10 @@ snd_seq_oss_open(struct file *file, int level)
         return 0;
 
  _error:
-        snd_seq_oss_writeq_delete(dp->writeq);
-        snd_seq_oss_readq_delete(dp->readq);
         snd_seq_oss_synth_cleanup(dp);
         snd_seq_oss_midi_cleanup(dp);
-        delete_port(dp);
         delete_seq_queue(dp->queue);
-        kfree(dp);
+        delete_port(dp);
 
         return rc;
 }
@@ -350,8 +347,10 @@ create_port(struct seq_oss_devinfo *dp)
 static int
 delete_port(struct seq_oss_devinfo *dp)
 {
-        if (dp->port < 0)
+        if (dp->port < 0) {
+                kfree(dp);
                 return 0;
+        }
 
         debug_printk(("delete_port %i\n", dp->port));
         return snd_seq_event_port_detach(dp->cseq, dp->port);
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 5f3e68401f90..91d6023a63e5 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -764,9 +764,9 @@ static long io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
 static long mem[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 
+#ifndef MSND_CLASSIC
 static long cfg[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 
-#ifndef MSND_CLASSIC
 /* Extra Peripheral Configuration (Default: Disable) */
 static long ide_io0[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static long ide_io1[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
@@ -894,7 +894,11 @@ static int __devinit snd_msnd_isa_probe(struct device *pdev, unsigned int idx)
         struct snd_card *card;
         struct snd_msnd *chip;
 
-        if (has_isapnp(idx) || cfg[idx] == SNDRV_AUTO_PORT) {
+        if (has_isapnp(idx)
+#ifndef MSND_CLASSIC
+            || cfg[idx] == SNDRV_AUTO_PORT
+#endif
+            ) {
                 printk(KERN_INFO LOGNAME ": Assuming PnP mode\n");
                 return -ENODEV;
         }
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 3827092cc1d2..14829210ef0b 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -4536,7 +4536,7 @@ int snd_hda_parse_pin_def_config(struct hda_codec *codec,
                         cfg->hp_outs--;
                         memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
                                 sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
-                        memmove(sequences_hp + i - 1, sequences_hp + i,
+                        memmove(sequences_hp + i, sequences_hp + i + 1,
                                 sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
                 }
         }
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 1053fff4bd0a..34940a079051 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -126,6 +126,7 @@ MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
                          "{Intel, ICH10},"
                          "{Intel, PCH},"
                          "{Intel, CPT},"
+                         "{Intel, PBG},"
                          "{Intel, SCH},"
                          "{ATI, SB450},"
                          "{ATI, SB600},"
@@ -2749,6 +2750,8 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
         { PCI_DEVICE(0x8086, 0x3b57), .driver_data = AZX_DRIVER_ICH },
         /* CPT */
         { PCI_DEVICE(0x8086, 0x1c20), .driver_data = AZX_DRIVER_PCH },
+        /* PBG */
+        { PCI_DEVICE(0x8086, 0x1d20), .driver_data = AZX_DRIVER_PCH },
         /* SCH */
         { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
         /* ATI SB 450/600 */
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index b697fd2a6f8b..10bbbaf6ebc3 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -3641,6 +3641,7 @@ static struct snd_pci_quirk ad1984_cfg_tbl[] = {
         /* Lenovo Thinkpad T61/X61 */
         SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo Thinkpad", AD1984_THINKPAD),
         SND_PCI_QUIRK(0x1028, 0x0214, "Dell T3400", AD1984_DELL_DESKTOP),
+        SND_PCI_QUIRK(0x1028, 0x0233, "Dell Latitude E6400", AD1984_DELL_DESKTOP),
         {}
 };
 
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 4ef5efaaaef1..488fd9ade1ba 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -972,6 +972,53 @@ static struct hda_verb cs_coef_init_verbs[] = {
         {} /* terminator */
 };
 
+/* Errata: CS4207 rev C0/C1/C2 Silicon
+ *
+ * http://www.cirrus.com/en/pubs/errata/ER880C3.pdf
+ *
+ * 6. At high temperature (TA > +85°C), the digital supply current (IVD)
+ * may be excessive (up to an additional 200 μA), which is most easily
+ * observed while the part is being held in reset (RESET# active low).
+ *
+ * Root Cause: At initial powerup of the device, the logic that drives
+ * the clock and write enable to the S/PDIF SRC RAMs is not properly
+ * initialized.
+ * Certain random patterns will cause a steady leakage current in those
+ * RAM cells. The issue will resolve once the SRCs are used (turned on).
+ *
+ * Workaround: The following verb sequence briefly turns on the S/PDIF SRC
+ * blocks, which will alleviate the issue.
+ */
+
+static struct hda_verb cs_errata_init_verbs[] = {
+        {0x01, AC_VERB_SET_POWER_STATE, 0x00}, /* AFG: D0 */
+        {0x11, AC_VERB_SET_PROC_STATE, 0x01},  /* VPW: processing on */
+
+        {0x11, AC_VERB_SET_COEF_INDEX, 0x0008},
+        {0x11, AC_VERB_SET_PROC_COEF, 0x9999},
+        {0x11, AC_VERB_SET_COEF_INDEX, 0x0017},
+        {0x11, AC_VERB_SET_PROC_COEF, 0xa412},
+        {0x11, AC_VERB_SET_COEF_INDEX, 0x0001},
+        {0x11, AC_VERB_SET_PROC_COEF, 0x0009},
+
+        {0x07, AC_VERB_SET_POWER_STATE, 0x00}, /* S/PDIF Rx: D0 */
+        {0x08, AC_VERB_SET_POWER_STATE, 0x00}, /* S/PDIF Tx: D0 */
+
+        {0x11, AC_VERB_SET_COEF_INDEX, 0x0017},
+        {0x11, AC_VERB_SET_PROC_COEF, 0x2412},
+        {0x11, AC_VERB_SET_COEF_INDEX, 0x0008},
+        {0x11, AC_VERB_SET_PROC_COEF, 0x0000},
+        {0x11, AC_VERB_SET_COEF_INDEX, 0x0001},
+        {0x11, AC_VERB_SET_PROC_COEF, 0x0008},
+        {0x11, AC_VERB_SET_PROC_STATE, 0x00},
+
+        {0x07, AC_VERB_SET_POWER_STATE, 0x03}, /* S/PDIF Rx: D3 */
+        {0x08, AC_VERB_SET_POWER_STATE, 0x03}, /* S/PDIF Tx: D3 */
+        /*{0x01, AC_VERB_SET_POWER_STATE, 0x03},*/ /* AFG: D3 This is already handled */
+
+        {} /* terminator */
+};
+
 /* SPDIF setup */
 static void init_digital(struct hda_codec *codec)
 {
@@ -991,6 +1038,9 @@ static int cs_init(struct hda_codec *codec)
 {
         struct cs_spec *spec = codec->spec;
 
+        /* init_verb sequence for C0/C1/C2 errata*/
+        snd_hda_sequence_write(codec, cs_errata_init_verbs);
+
         snd_hda_sequence_write(codec, cs_coef_init_verbs);
 
         if (spec->gpio_mask) {
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 5cdb80edbd7f..972e7c453b3d 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -116,6 +116,7 @@ struct conexant_spec {
         unsigned int dell_vostro:1;
         unsigned int ideapad:1;
         unsigned int thinkpad:1;
+        unsigned int hp_laptop:1;
 
         unsigned int ext_mic_present;
         unsigned int recording;
@@ -2299,6 +2300,18 @@ static void cxt5066_ideapad_automic(struct hda_codec *codec)
         }
 }
 
+/* toggle input of built-in digital mic and mic jack appropriately */
+static void cxt5066_hp_laptop_automic(struct hda_codec *codec)
+{
+        unsigned int present;
+
+        present = snd_hda_jack_detect(codec, 0x1b);
+        snd_printdd("CXT5066: external microphone present=%d\n", present);
+        snd_hda_codec_write(codec, 0x17, 0, AC_VERB_SET_CONNECT_SEL,
+                            present ? 1 : 3);
+}
+
+
 /* toggle input of built-in digital mic and mic jack appropriately
    order is: external mic -> dock mic -> interal mic */
 static void cxt5066_thinkpad_automic(struct hda_codec *codec)
@@ -2408,6 +2421,20 @@ static void cxt5066_ideapad_event(struct hda_codec *codec, unsigned int res)
 }
 
 /* unsolicited event for jack sensing */
+static void cxt5066_hp_laptop_event(struct hda_codec *codec, unsigned int res)
+{
+        snd_printdd("CXT5066_hp_laptop: unsol event %x (%x)\n", res, res >> 26);
+        switch (res >> 26) {
+        case CONEXANT_HP_EVENT:
+                cxt5066_hp_automute(codec);
+                break;
+        case CONEXANT_MIC_EVENT:
+                cxt5066_hp_laptop_automic(codec);
+                break;
+        }
+}
+
+/* unsolicited event for jack sensing */
 static void cxt5066_thinkpad_event(struct hda_codec *codec, unsigned int res)
 {
         snd_printdd("CXT5066_thinkpad: unsol event %x (%x)\n", res, res >> 26);
@@ -2989,6 +3016,14 @@ static struct hda_verb cxt5066_init_verbs_portd_lo[] = {
         { } /* end */
 };
 
+
+static struct hda_verb cxt5066_init_verbs_hp_laptop[] = {
+        {0x14, AC_VERB_SET_CONNECT_SEL, 0x0},
+        {0x19, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | CONEXANT_HP_EVENT},
+        {0x1b, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | CONEXANT_MIC_EVENT},
+        { } /* end */
+};
+
 /* initialize jack-sensing, too */
 static int cxt5066_init(struct hda_codec *codec)
 {
@@ -3004,6 +3039,8 @@ static int cxt5066_init(struct hda_codec *codec)
                         cxt5066_ideapad_automic(codec);
                 else if (spec->thinkpad)
                         cxt5066_thinkpad_automic(codec);
+                else if (spec->hp_laptop)
+                        cxt5066_hp_laptop_automic(codec);
         }
         cxt5066_set_mic_boost(codec);
         return 0;
@@ -3031,6 +3068,7 @@ enum {
         CXT5066_DELL_VOSTO,     /* Dell Vostro 1015i */
         CXT5066_IDEAPAD,        /* Lenovo IdeaPad U150 */
         CXT5066_THINKPAD,       /* Lenovo ThinkPad T410s, others? */
+        CXT5066_HP_LAPTOP,      /* HP Laptop */
         CXT5066_MODELS
 };
 
@@ -3041,6 +3079,7 @@ static const char *cxt5066_models[CXT5066_MODELS] = {
         [CXT5066_DELL_VOSTO]    = "dell-vostro",
         [CXT5066_IDEAPAD]       = "ideapad",
         [CXT5066_THINKPAD]      = "thinkpad",
+        [CXT5066_HP_LAPTOP]     = "hp-laptop",
 };
 
 static struct snd_pci_quirk cxt5066_cfg_tbl[] = {
@@ -3052,8 +3091,11 @@ static struct snd_pci_quirk cxt5066_cfg_tbl[] = {
         SND_PCI_QUIRK(0x1028, 0x02d8, "Dell Vostro", CXT5066_DELL_VOSTO),
         SND_PCI_QUIRK(0x1028, 0x0402, "Dell Vostro", CXT5066_DELL_VOSTO),
         SND_PCI_QUIRK(0x1028, 0x0408, "Dell Inspiron One 19T", CXT5066_IDEAPAD),
+        SND_PCI_QUIRK(0x103c, 0x360b, "HP G60", CXT5066_HP_LAPTOP),
+        SND_PCI_QUIRK(0x1179, 0xff1e, "Toshiba Satellite C650D", CXT5066_IDEAPAD),
         SND_PCI_QUIRK(0x1179, 0xff50, "Toshiba Satellite P500-PSPGSC-01800T", CXT5066_OLPC_XO_1_5),
         SND_PCI_QUIRK(0x1179, 0xffe0, "Toshiba Satellite Pro T130-15F", CXT5066_OLPC_XO_1_5),
+        SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400s", CXT5066_THINKPAD),
         SND_PCI_QUIRK(0x17aa, 0x21b2, "Thinkpad X100e", CXT5066_IDEAPAD),
         SND_PCI_QUIRK(0x17aa, 0x21b3, "Thinkpad Edge 13 (197)", CXT5066_IDEAPAD),
         SND_PCI_QUIRK(0x17aa, 0x21b4, "Thinkpad Edge", CXT5066_IDEAPAD),
@@ -3116,6 +3158,23 @@ static int patch_cxt5066(struct hda_codec *codec)
                 spec->num_init_verbs++;
                 spec->dell_automute = 1;
                 break;
+        case CXT5066_HP_LAPTOP:
+                codec->patch_ops.init = cxt5066_init;
+                codec->patch_ops.unsol_event = cxt5066_hp_laptop_event;
+                spec->init_verbs[spec->num_init_verbs] =
+                        cxt5066_init_verbs_hp_laptop;
+                spec->num_init_verbs++;
+                spec->hp_laptop = 1;
+                spec->mixers[spec->num_mixers++] = cxt5066_mixer_master;
+                spec->mixers[spec->num_mixers++] = cxt5066_mixers;
+                /* no S/PDIF out */
+                spec->multiout.dig_out_nid = 0;
+                /* input source automatically selected */
+                spec->input_mux = NULL;
+                spec->port_d_mode = 0;
+                spec->mic_boost = 3; /* default 30dB gain */
+                break;
+
         case CXT5066_OLPC_XO_1_5:
                 codec->patch_ops.init = cxt5066_olpc_init;
                 codec->patch_ops.unsol_event = cxt5066_olpc_unsol_event;
diff --git a/sound/pci/hda/patch_nvhdmi.c b/sound/pci/hda/patch_nvhdmi.c
index 69b950d527c3..baa108b9d6aa 100644
--- a/sound/pci/hda/patch_nvhdmi.c
+++ b/sound/pci/hda/patch_nvhdmi.c
@@ -84,7 +84,7 @@ static struct hda_verb nvhdmi_basic_init_7x[] = {
 #else
 /* support all rates and formats */
 #define SUPPORTED_RATES \
-        (SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
+        (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
         SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
          SNDRV_PCM_RATE_192000)
 #define SUPPORTED_MAXBPS        24
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 627bf9963368..a432e6efd19b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1594,12 +1594,22 @@ static void alc_auto_parse_digital(struct hda_codec *codec)
         }
 
         if (spec->autocfg.dig_in_pin) {
-                hda_nid_t dig_nid;
-                err = snd_hda_get_connections(codec,
-                                              spec->autocfg.dig_in_pin,
-                                              &dig_nid, 1);
-                if (err > 0)
-                        spec->dig_in_nid = dig_nid;
+                dig_nid = codec->start_nid;
+                for (i = 0; i < codec->num_nodes; i++, dig_nid++) {
+                        unsigned int wcaps = get_wcaps(codec, dig_nid);
+                        if (get_wcaps_type(wcaps) != AC_WID_AUD_IN)
+                                continue;
+                        if (!(wcaps & AC_WCAP_DIGITAL))
+                                continue;
+                        if (!(wcaps & AC_WCAP_CONN_LIST))
+                                continue;
+                        err = get_connection_index(codec, dig_nid,
+                                                   spec->autocfg.dig_in_pin);
+                        if (err >= 0) {
+                                spec->dig_in_nid = dig_nid;
+                                break;
+                        }
+                }
         }
 }
 
@@ -5334,6 +5344,7 @@ static void fillup_priv_adc_nids(struct hda_codec *codec, hda_nid_t *nids,
 
 static struct snd_pci_quirk beep_white_list[] = {
         SND_PCI_QUIRK(0x1043, 0x829f, "ASUS", 1),
+        SND_PCI_QUIRK(0x1043, 0x83ce, "EeePC", 1),
         SND_PCI_QUIRK(0x8086, 0xd613, "Intel", 1),
         {}
 };
@@ -14452,6 +14463,7 @@ static void alc269_auto_init(struct hda_codec *codec)
 
 enum {
         ALC269_FIXUP_SONY_VAIO,
+        ALC269_FIXUP_DELL_M101Z,
 };
 
 static const struct hda_verb alc269_sony_vaio_fixup_verbs[] = {
@@ -14463,11 +14475,20 @@ static const struct alc_fixup alc269_fixups[] = {
         [ALC269_FIXUP_SONY_VAIO] = {
                 .verbs = alc269_sony_vaio_fixup_verbs
         },
+        [ALC269_FIXUP_DELL_M101Z] = {
+                .verbs = (const struct hda_verb[]) {
+                        /* Enables internal speaker */
+                        {0x20, AC_VERB_SET_COEF_INDEX, 13},
+                        {0x20, AC_VERB_SET_PROC_COEF, 0x4040},
+                        {}
+                }
+        },
 };
 
 static struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x104d, 0x9071, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
         SND_PCI_QUIRK(0x104d, 0x9077, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
+        SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
         {}
 };
 
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index 289cb4dacfc7..6c0a11adb2a8 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -543,6 +543,10 @@ static int __devinit get_oxygen_model(struct oxygen *chip,
                 chip->model.suspend = claro_suspend;
                 chip->model.resume = claro_resume;
                 chip->model.set_adc_params = set_ak5385_params;
+                chip->model.device_config = PLAYBACK_0_TO_I2S |
+                                            PLAYBACK_1_TO_SPDIF |
+                                            CAPTURE_0_FROM_I2S_2 |
+                                            CAPTURE_1_FROM_SPDIF;
                 break;
         }
         if (id->driver_data == MODEL_MERIDIAN ||
diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 6147216af744..a3409edcfb50 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -155,6 +155,7 @@ void oxygen_pci_remove(struct pci_dev *pci);
 int oxygen_pci_suspend(struct pci_dev *pci, pm_message_t state);
 int oxygen_pci_resume(struct pci_dev *pci);
 #endif
+void oxygen_pci_shutdown(struct pci_dev *pci);
 
 /* oxygen_mixer.c */
 
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index fad03d64e3ad..7e93cf884437 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -519,16 +519,21 @@ static void oxygen_init(struct oxygen *chip)
         }
 }
 
-static void oxygen_card_free(struct snd_card *card)
+static void oxygen_shutdown(struct oxygen *chip)
 {
-        struct oxygen *chip = card->private_data;
-
         spin_lock_irq(&chip->reg_lock);
         chip->interrupt_mask = 0;
         chip->pcm_running = 0;
         oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
         oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
         spin_unlock_irq(&chip->reg_lock);
+}
+
+static void oxygen_card_free(struct snd_card *card)
+{
+        struct oxygen *chip = card->private_data;
+
+        oxygen_shutdown(chip);
         if (chip->irq >= 0)
                 free_irq(chip->irq, chip);
         flush_scheduled_work();
@@ -778,3 +783,13 @@ int oxygen_pci_resume(struct pci_dev *pci)
 }
 EXPORT_SYMBOL(oxygen_pci_resume);
 #endif /* CONFIG_PM */
+
+void oxygen_pci_shutdown(struct pci_dev *pci)
+{
+        struct snd_card *card = pci_get_drvdata(pci);
+        struct oxygen *chip = card->private_data;
+
+        oxygen_shutdown(chip);
+        chip->model.cleanup(chip);
+}
+EXPORT_SYMBOL(oxygen_pci_shutdown);
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index f03a2f2cffee..06c863e86e3d 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -95,6 +95,7 @@ static struct pci_driver xonar_driver = {
         .suspend = oxygen_pci_suspend,
         .resume = oxygen_pci_resume,
 #endif
+        .shutdown = oxygen_pci_shutdown,
 };
 
 static int __init alsa_card_xonar_init(void)
diff --git a/sound/pci/oxygen/xonar_wm87x6.c b/sound/pci/oxygen/xonar_wm87x6.c
index dbc4b89d74e4..b82c1cfa96f5 100644
--- a/sound/pci/oxygen/xonar_wm87x6.c
+++ b/sound/pci/oxygen/xonar_wm87x6.c
@@ -53,6 +53,8 @@ struct xonar_wm87x6 {
         struct xonar_generic generic;
         u16 wm8776_regs[0x17];
         u16 wm8766_regs[0x10];
+        struct snd_kcontrol *line_adcmux_control;
+        struct snd_kcontrol *mic_adcmux_control;
         struct snd_kcontrol *lc_controls[13];
 };
 
@@ -193,6 +195,7 @@ static void xonar_ds_init(struct oxygen *chip)
 static void xonar_ds_cleanup(struct oxygen *chip)
 {
         xonar_disable_output(chip);
+        wm8776_write(chip, WM8776_RESET, 0);
 }
 
 static void xonar_ds_suspend(struct oxygen *chip)
@@ -603,6 +606,7 @@ static int wm8776_input_mux_put(struct snd_kcontrol *ctl,
 {
         struct oxygen *chip = ctl->private_data;
         struct xonar_wm87x6 *data = chip->model_data;
+        struct snd_kcontrol *other_ctl;
         unsigned int mux_bit = ctl->private_value;
         u16 reg;
         int changed;
@@ -610,8 +614,18 @@ static int wm8776_input_mux_put(struct snd_kcontrol *ctl,
         mutex_lock(&chip->mutex);
         reg = data->wm8776_regs[WM8776_ADCMUX];
         if (value->value.integer.value[0]) {
-                reg &= ~0x003;
                 reg |= mux_bit;
+                /* line-in and mic-in are exclusive */
+                mux_bit ^= 3;
+                if (reg & mux_bit) {
+                        reg &= ~mux_bit;
+                        if (mux_bit == 1)
+                                other_ctl = data->line_adcmux_control;
+                        else
+                                other_ctl = data->mic_adcmux_control;
+                        snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+                                       &other_ctl->id);
+                }
         } else
                 reg &= ~mux_bit;
         changed = reg != data->wm8776_regs[WM8776_ADCMUX];
@@ -963,7 +977,13 @@ static int xonar_ds_mixer_init(struct oxygen *chip)
                 err = snd_ctl_add(chip->card, ctl);
                 if (err < 0)
                         return err;
+                if (!strcmp(ctl->id.name, "Line Capture Switch"))
+                        data->line_adcmux_control = ctl;
+                else if (!strcmp(ctl->id.name, "Mic Capture Switch"))
+                        data->mic_adcmux_control = ctl;
         }
+        if (!data->line_adcmux_control || !data->mic_adcmux_control)
+                return -ENXIO;
         BUILD_BUG_ON(ARRAY_SIZE(lc_controls) != ARRAY_SIZE(data->lc_controls));
         for (i = 0; i < ARRAY_SIZE(lc_controls); ++i) {
                 ctl = snd_ctl_new1(&lc_controls[i], chip);
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index b92adef8e81e..d6fa7bfd9aa1 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -4609,6 +4609,7 @@ static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigne
                 if (err < 0)
                         return err;
 
+                memset(&info, 0, sizeof(info));
                 spin_lock_irqsave(&hdsp->lock, flags);
                 info.pref_sync_ref = (unsigned char)hdsp_pref_sync_ref(hdsp);
                 info.wordclock_sync_check = (unsigned char)hdsp_wc_sync_check(hdsp);
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 547b713d7204..0c98ef9156d8 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -4127,6 +4127,7 @@ static int snd_hdspm_hwdep_ioctl(struct snd_hwdep * hw, struct file *file,
 
         case SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO:
 
+                memset(&info, 0, sizeof(info));
                 spin_lock_irq(&hdspm->lock);
                 info.pref_sync_ref = hdspm_pref_sync_ref(hdspm);
                 info.wordclock_sync_check = hdspm_wc_sync_check(hdspm);
diff --git a/sound/ppc/snd_ps3.c b/sound/ppc/snd_ps3.c
index 2f12da4da561..581a670e8261 100644
--- a/sound/ppc/snd_ps3.c
+++ b/sound/ppc/snd_ps3.c
@@ -579,7 +579,7 @@ static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
                                   rate * delay_ms / 1000)
                 * substream->runtime->channels;
 
-        pr_debug(KERN_ERR "%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
+        pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
                  __func__,
                  delay_ms,
                  rate,
diff --git a/sound/soc/s3c24xx/s3c-dma.c b/sound/soc/s3c24xx/s3c-dma.c
index 1b61c23ff300..f1b1bc4bacfb 100644
--- a/sound/soc/s3c24xx/s3c-dma.c
+++ b/sound/soc/s3c24xx/s3c-dma.c
@@ -94,8 +94,7 @@ static void s3c_dma_enqueue(struct snd_pcm_substream *substream)
 
                 if ((pos + len) > prtd->dma_end) {
                         len  = prtd->dma_end - pos;
-                        pr_debug(KERN_DEBUG "%s: corrected dma len %ld\n",
-                               __func__, len);
+                        pr_debug("%s: corrected dma len %ld\n", __func__, len);
                 }
 
                 ret = s3c2410_dma_enqueue(prtd->params->channel,
diff --git a/sound/soc/sh/migor.c b/sound/soc/sh/migor.c
index b823a5c9b9bc..87e2b7fcbf17 100644
--- a/sound/soc/sh/migor.c
+++ b/sound/soc/sh/migor.c
@@ -12,6 +12,7 @@
 #include <linux/firmware.h>
 #include <linux/module.h>
 
+#include <asm/clkdev.h>
 #include <asm/clock.h>
 
 #include <cpu/sh7722.h>
@@ -40,12 +41,12 @@ static struct clk_ops siumckb_clk_ops = {
 };
 
 static struct clk siumckb_clk = {
-        .name           = "siumckb_clk",
-        .id             = -1,
         .ops            = &siumckb_clk_ops,
         .rate           = 0, /* initialised at run-time */
 };
 
+static struct clk_lookup *siumckb_lookup;
+
 static int migor_hw_params(struct snd_pcm_substream *substream,
                            struct snd_pcm_hw_params *params)
 {
@@ -180,6 +181,13 @@ static int __init migor_init(void)
         if (ret < 0)
                 return ret;
 
+        siumckb_lookup = clkdev_alloc(&siumckb_clk, "siumckb_clk", NULL);
+        if (!siumckb_lookup) {
+                ret = -ENOMEM;
+                goto eclkdevalloc;
+        }
+        clkdev_add(siumckb_lookup);
+
         /* Port number used on this machine: port B */
         migor_snd_device = platform_device_alloc("soc-audio", 1);
         if (!migor_snd_device) {
@@ -200,12 +208,15 @@ static int __init migor_init(void)
 epdevadd:
         platform_device_put(migor_snd_device);
 epdevalloc:
+        clkdev_drop(siumckb_lookup);
+eclkdevalloc:
         clk_unregister(&siumckb_clk);
         return ret;
 }
 
 static void __exit migor_exit(void)
 {
+        clkdev_drop(siumckb_lookup);
         clk_unregister(&siumckb_clk);
         platform_device_unregister(migor_snd_device);
 }
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index adbc68ce9050..f6b0d2829ea9 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -203,8 +203,9 @@ static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
         data[1] = (value >> 8) & 0xff;
         data[2] = value & 0xff;
 
-        if (!snd_soc_codec_volatile_register(codec, reg))
-                reg_cache[reg] = value;
+        if (!snd_soc_codec_volatile_register(codec, reg)
+                && reg < codec->reg_cache_size)
+                        reg_cache[reg] = value;
 
         if (codec->cache_only) {
                 codec->cache_sync = 1;
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 9feb00c831a0..4eabafa5b037 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -126,7 +126,7 @@ static void snd_usb_stream_disconnect(struct list_head *head)
         for (idx = 0; idx < 2; idx++) {
                 subs = &as->substream[idx];
                 if (!subs->num_formats)
-                        return;
+                        continue;
                 snd_usb_release_substream_urbs(subs, 1);
                 subs->interface = -1;
         }
@@ -216,6 +216,11 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
         }
 
         switch (protocol) {
+        default:
+                snd_printdd(KERN_WARNING "unknown interface protocol %#02x, assuming v1\n",
+                            protocol);
+                /* fall through */
+
         case UAC_VERSION_1: {
                 struct uac1_ac_header_descriptor *h1 = control_header;
 
@@ -253,10 +258,6 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 
                 break;
         }
-
-        default:
-                snd_printk(KERN_ERR "unknown protocol version 0x%02x\n", protocol);
-                return -EINVAL;
         }
 
         return 0;
@@ -465,7 +466,13 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                         goto __error;
         }
 
-        chip->ctrl_intf = alts;
+        /*
+         * For devices with more than one control interface, we assume the
+         * first contains the audio controls. We might need a more specific
+         * check here in the future.
+         */
+        if (!chip->ctrl_intf)
+                chip->ctrl_intf = alts;
 
         if (err > 0) {
                 /* create normal USB audio interfaces */
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index b853f8df794f..7754a1034545 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -295,12 +295,11 @@ int snd_usb_init_sample_rate(struct snd_usb_audio *chip, int iface,
 
         switch (altsd->bInterfaceProtocol) {
         case UAC_VERSION_1:
+        default:
                 return set_sample_rate_v1(chip, iface, alts, fmt, rate);
 
         case UAC_VERSION_2:
                 return set_sample_rate_v2(chip, iface, alts, fmt, rate);
         }
-
-        return -EINVAL;
 }
 
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 1a701f1e8f50..ef0a07e34844 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -275,6 +275,12 @@ int snd_usb_parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
 
                 /* get audio formats */
                 switch (protocol) {
+                default:
+                        snd_printdd(KERN_WARNING "%d:%u:%d: unknown interface protocol %#02x, assuming v1\n",
+                                    dev->devnum, iface_no, altno, protocol);
+                        protocol = UAC_VERSION_1;
+                        /* fall through */
+
                 case UAC_VERSION_1: {
                         struct uac1_as_header_descriptor *as =
                                 snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
@@ -336,11 +342,6 @@ int snd_usb_parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
                                    dev->devnum, iface_no, altno, as->bTerminalLink);
                         continue;
                 }
-
-                default:
-                        snd_printk(KERN_ERR "%d:%u:%d : unknown interface protocol %04x\n",
-                                   dev->devnum, iface_no, altno, protocol);
-                        continue;
                 }
 
                 /* get format type */
diff --git a/sound/usb/format.c b/sound/usb/format.c
index 3a1375459c06..69148212aa70 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -49,7 +49,8 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
         u64 pcm_formats;
 
         switch (protocol) {
-        case UAC_VERSION_1: {
+        case UAC_VERSION_1:
+        default: {
                 struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
                 sample_width = fmt->bBitResolution;
                 sample_bytes = fmt->bSubframeSize;
@@ -64,9 +65,6 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
                 format <<= 1;
                 break;
         }
-
-        default:
-                return -EINVAL;
         }
 
         pcm_formats = 0;
@@ -384,6 +382,10 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
          * audio class v2 uses class specific EP0 range requests for that.
          */
         switch (protocol) {
+        default:
+                snd_printdd(KERN_WARNING "%d:%u:%d : invalid protocol version %d, assuming v1\n",
+                           chip->dev->devnum, fp->iface, fp->altsetting, protocol);
+                /* fall through */
         case UAC_VERSION_1:
                 fp->channels = fmt->bNrChannels;
                 ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7);
@@ -392,10 +394,6 @@ static int parse_audio_format_i(struct snd_usb_audio *chip,
                 /* fp->channels is already set in this case */
                 ret = parse_audio_format_rates_v2(chip, fp);
                 break;
-        default:
-                snd_printk(KERN_ERR "%d:%u:%d : invalid protocol version %d\n",
-                           chip->dev->devnum, fp->iface, fp->altsetting, protocol);
-                return -EINVAL;
         }
 
         if (fp->channels < 1) {
@@ -438,6 +436,10 @@ static int parse_audio_format_ii(struct snd_usb_audio *chip,
         fp->channels = 1;
 
         switch (protocol) {
+        default:
+                snd_printdd(KERN_WARNING "%d:%u:%d : invalid protocol version %d, assuming v1\n",
+                           chip->dev->devnum, fp->iface, fp->altsetting, protocol);
+                /* fall through */
         case UAC_VERSION_1: {
                 struct uac_format_type_ii_discrete_descriptor *fmt = _fmt;
                 brate = le16_to_cpu(fmt->wMaxBitRate);
@@ -456,10 +458,6 @@ static int parse_audio_format_ii(struct snd_usb_audio *chip,
                 ret = parse_audio_format_rates_v2(chip, fp);
                 break;
         }
-        default:
-                snd_printk(KERN_ERR "%d:%u:%d : invalid protocol version %d\n",
-                           chip->dev->devnum, fp->iface, fp->altsetting, protocol);
-                return -EINVAL;
         }
 
         return ret;
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index c166db0057d3..3ed3901369ce 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -2175,7 +2175,15 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
         }
 
         host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0];
-        mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol;
+        switch (get_iface_desc(host_iface)->bInterfaceProtocol) {
+        case UAC_VERSION_1:
+        default:
+                mixer->protocol = UAC_VERSION_1;
+                break;
+        case UAC_VERSION_2:
+                mixer->protocol = UAC_VERSION_2;
+                break;
+        }
 
         if ((err = snd_usb_mixer_controls(mixer)) < 0 ||
             (err = snd_usb_mixer_status_create(mixer)) < 0)
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 3634cedf9306..3b5135c93062 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -173,13 +173,12 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface,
 
         switch (altsd->bInterfaceProtocol) {
         case UAC_VERSION_1:
+        default:
                 return init_pitch_v1(chip, iface, alts, fmt);
 
         case UAC_VERSION_2:
                 return init_pitch_v2(chip, iface, alts, fmt);
         }
-
-        return -EINVAL;
 }
 
 /*
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 624a96c636fd..6de4313924fb 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -50,6 +50,7 @@ static inline void callchain_init(struct callchain_node *node)
         INIT_LIST_HEAD(&node->children);
         INIT_LIST_HEAD(&node->val);
 
+        node->children_hit = 0;
         node->parent = NULL;
         node->hit = 0;
 }
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index e72f05c3bef0..fcc16e4349df 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1539,6 +1539,7 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
                 goto error;
         }
         tev->point.offset = pev->point.offset;
+        tev->point.retprobe = pev->point.retprobe;
         tev->nargs = pev->nargs;
         if (tev->nargs) {
                 tev->args = zalloc(sizeof(struct probe_trace_arg)
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 525136684d4e..32b81f707ff5 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -686,6 +686,25 @@ static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
         char buf[32], *ptr;
         int ret, nscopes;
 
+        if (!is_c_varname(pf->pvar->var)) {
+                /* Copy raw parameters */
+                pf->tvar->value = strdup(pf->pvar->var);
+                if (pf->tvar->value == NULL)
+                        return -ENOMEM;
+                if (pf->pvar->type) {
+                        pf->tvar->type = strdup(pf->pvar->type);
+                        if (pf->tvar->type == NULL)
+                                return -ENOMEM;
+                }
+                if (pf->pvar->name) {
+                        pf->tvar->name = strdup(pf->pvar->name);
+                        if (pf->tvar->name == NULL)
+                                return -ENOMEM;
+                } else
+                        pf->tvar->name = NULL;
+                return 0;
+        }
+
         if (pf->pvar->name)
                 pf->tvar->name = strdup(pf->pvar->name);
         else {
@@ -700,19 +719,6 @@ static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
         if (pf->tvar->name == NULL)
                 return -ENOMEM;
 
-        if (!is_c_varname(pf->pvar->var)) {
-                /* Copy raw parameters */
-                pf->tvar->value = strdup(pf->pvar->var);
-                if (pf->tvar->value == NULL)
-                        return -ENOMEM;
-                if (pf->pvar->type) {
-                        pf->tvar->type = strdup(pf->pvar->type);
-                        if (pf->tvar->type == NULL)
-                                return -ENOMEM;
-                }
-                return 0;
-        }
-
         pr_debug("Searching '%s' variable in context.\n",
                  pf->pvar->var);
         /* Search child die for local variables and parameters. */
@@ -783,6 +789,16 @@ static int convert_probe_point(Dwarf_Die *sp_die, struct probe_finder *pf)
                 /* This function has no name. */
                 tev->point.offset = (unsigned long)pf->addr;
 
+        /* Return probe must be on the head of a subprogram */
+        if (pf->pev->point.retprobe) {
+                if (tev->point.offset != 0) {
+                        pr_warning("Return probe must be on the head of"
+                                   " a real function\n");
+                        return -EINVAL;
+                }
+                tev->point.retprobe = true;
+        }
+
         pr_debug("Probe point found: %s+%lu\n", tev->point.symbol,
                  tev->point.offset);
 
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 1a367734e016..b2f5ae97f33d 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2268,6 +2268,9 @@ static int setup_list(struct strlist **list, const char *list_str,
 
 int symbol__init(void)
 {
+        if (symbol_conf.initialized)
+                return 0;
+
         elf_version(EV_CURRENT);
         if (symbol_conf.sort_by_name)
                 symbol_conf.priv_size += (sizeof(struct symbol_name_rb_node) -
@@ -2293,6 +2296,7 @@ int symbol__init(void)
                        symbol_conf.sym_list_str, "symbol") < 0)
                 goto out_free_comm_list;
 
+        symbol_conf.initialized = true;
         return 0;
 
 out_free_dso_list:
@@ -2304,11 +2308,14 @@ out_free_comm_list:
 
 void symbol__exit(void)
 {
+        if (!symbol_conf.initialized)
+                return;
         strlist__delete(symbol_conf.sym_list);
         strlist__delete(symbol_conf.dso_list);
         strlist__delete(symbol_conf.comm_list);
         vmlinux_path__exit();
         symbol_conf.sym_list = symbol_conf.dso_list = symbol_conf.comm_list = NULL;
+        symbol_conf.initialized = false;
 }
 
 int machines__create_kernel_maps(struct rb_root *self, pid_t pid)
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index b7a8da4af5a0..ea95c2756f05 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -69,7 +69,8 @@ struct symbol_conf {
                         show_nr_samples,
                         use_callchain,
                         exclude_other,
-                        show_cpu_utilization;
+                        show_cpu_utilization,
+                        initialized;
         const char      *vmlinux_name,
                         *source_prefix,
                         *field_sep;
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 66cf65b510b1..c1f1e3c62984 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -218,7 +218,6 @@ kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi)
         events = file->f_op->poll(file, &irqfd->pt);
 
         list_add_tail(&irqfd->list, &kvm->irqfds.items);
-        spin_unlock_irq(&kvm->irqfds.lock);
 
         /*
          * Check if there was an event already pending on the eventfd
@@ -227,6 +226,8 @@ kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi)
         if (events & POLLIN)
                 schedule_work(&irqfd->inject);
 
+        spin_unlock_irq(&kvm->irqfds.lock);
+
         /*
          * do not drop the file until the irqfd is fully initialized, otherwise
          * we might race against the POLLHUP
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b78b794c1039..5186e728c53e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1958,10 +1958,10 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
                        cpu);
                 hardware_disable(NULL);
                 break;
-        case CPU_ONLINE:
+        case CPU_STARTING:
                 printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
                        cpu);
-                smp_call_function_single(cpu, hardware_enable, NULL, 1);
+                hardware_enable(NULL);
                 break;
         }
         return NOTIFY_OK;
@@ -1970,10 +1970,12 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 
 asmlinkage void kvm_handle_fault_on_reboot(void)
 {
-        if (kvm_rebooting)
+        if (kvm_rebooting) {
                 /* spin while reset goes on */
+                local_irq_enable();
                 while (true)
                         ;
+        }
         /* Fault while not rebooting.  We want the trace. */
         BUG();
 }
@@ -2096,7 +2098,6 @@ int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
 
 static struct notifier_block kvm_cpu_notifier = {
         .notifier_call = kvm_cpu_hotplug,
-        .priority = 20, /* must be > scheduler priority */
 };
 
 static int vm_stat_get(void *_offset, u64 *val)